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Yapa P, Munaweera I, Weerasekera MM, Weerasinghe L, Sandaruwan C. Potential antifungal applications of heterometallic silica nanohybrids: A synergistic activity. BIOMATERIALS ADVANCES 2024; 162:213930. [PMID: 38909600 DOI: 10.1016/j.bioadv.2024.213930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/21/2024] [Accepted: 06/18/2024] [Indexed: 06/25/2024]
Abstract
An estimated 1.7 million fatalities and 150 million cases worldwide are attributed to fungal infections annually, that are in rise due to immunocompromised patient population. The challenges posed by traditional treatments can be addressed with the help of nanotechnology advancements. In this study, Co, Cu, and Ag-were doped into silica nanoparticles. Then the synthesized monometallic silica nanohybrids were combined to formulate heterometallic silica nanohybrids, characterized structurally and morphologically, compared, and evaluated for antifungal activity based on their individual and synergistic activity. The antifungal assays were conducted by using ATCC cultures of Candida albicans and QC samples of Trichophyton rubrum, Microsporum gypseum, and Aspergillus niger. The MIC (ranging from 49.00 to 1560.00 μg/mL), MFC (ranging from 197.00 to 3125.00 μg/mL), IC50 values (ranging from 31.10 to 400.80 μg/mL), and FICI of nanohybrids were determined and compared. Moreover, well diffusion assay was performed. ABTS assay and DPPH assay were conducted to investigate the radical scavenging activity (RSA) of nanohybrids. SEM analysis clearly evidenced the structural deformations of each fungal cells and spores due to the treatment with trimetallic nanohybrid. According to the results, the trimetallic silica nanohybrids exhibited the most powerful synergistic RSA and the most effective antifungal activity, compared to the bimetallic silica nanohybrids.
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Affiliation(s)
- Piumika Yapa
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
| | - Imalka Munaweera
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka.
| | - Manjula M Weerasekera
- Department of Microbiology, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
| | - Laksiri Weerasinghe
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
| | - Chanaka Sandaruwan
- Sri Lanka Institute of Nanotechnology (SLINTEC), Homagama 10200, Sri Lanka; Department of Aerospace Engineering, Khalifa University of Science & Technology, 127788, Abu Dhabi, United Arab Emirates
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Kusior A, Mazurkow J, Jelen P, Bik M, Raza S, Wdowiak M, Nikiforov K, Paczesny J. Copper Oxide Electrochemical Deposition to Create Antiviral and Antibacterial Nanocoatings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 38978473 DOI: 10.1021/acs.langmuir.4c00642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
The impact of the reaction environment on the formation of the polycrystalline layer and its biomedical (antimicrobial) applications were analyzed in detail. Copper oxide layers were synthesized using an electrodeposition technique, with varying additives influencing the morphology, thickness, and chemical composition. Scanning electron microscopy (SEM) images confirmed the successful formation of polyhedral structures. Unmodified samples (CuL) crystallized as a mixture of copper oxide (I) and (II), with a thickness of approximately 1.74 μm. The inclusion of the nonconductive polymer polyvinylpyrrolidone (PVP) during synthesis led to a regular and compact CuO-rich structure (CuL-PVP). Conversely, adding glucose resulted in forming a Cu2O-rich nanostructured layer (CuL-D(+)G). Both additives significantly reduced the sample thickness to 617 nm for CuL-PVP and 560 nm for CuL-D(+)G. The effectiveness of the synthesized copper oxide layers was demonstrated in their ability to significantly reduce the T4 phage titer by approximately 2.5-3 log. Notably, CuL-PVP and CuL-D(+)G showed a more substantial reduction in the MS2 phage titer, achieving about a 5-log decrease. In terms of antibacterial activity, CuL and CuL-PVP exhibited moderate efficacy against Escherichia coli, whereas CuL-D(+)G reduced the E. coli titer to undetectable levels. All samples induced similar reductions in Staphylococcus aureus titer. The study revealed differential susceptibilities, with Gram-negative bacteria being more vulnerable to CuL-D(+)G due to its unique composition and morphology. The antimicrobial properties were attributed to the redox cycling of Cu ions, which generate ROS, and the mechanical damage caused by nanostructured surfaces. A crucial finding was the impact of surface composition rather than surface morphology on antimicrobial efficacy. Samples with a dominant Cu2O composition exhibited potent antibacterial and antiviral properties, whereas CuO-rich materials showed predominantly enhanced antiviral activity. This research highlights the significance of phase composition in determining the antimicrobial properties of copper oxide layers synthesized through electrodeposition.
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Affiliation(s)
- Anna Kusior
- AGH University of Krakow, Faculty of Material Sciences and Ceramics, Mickiewicza 30, Kraków 30-059, Poland
| | - Julia Mazurkow
- AGH University of Krakow, Faculty of Material Sciences and Ceramics, Mickiewicza 30, Kraków 30-059, Poland
| | - Piotr Jelen
- AGH University of Krakow, Faculty of Material Sciences and Ceramics, Mickiewicza 30, Kraków 30-059, Poland
| | - Maciej Bik
- AGH University of Krakow, Faculty of Material Sciences and Ceramics, Mickiewicza 30, Kraków 30-059, Poland
| | - Sada Raza
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warszawa 01-224, Poland
| | - Mateusz Wdowiak
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warszawa 01-224, Poland
| | - Kostyantyn Nikiforov
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warszawa 01-224, Poland
| | - Jan Paczesny
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warszawa 01-224, Poland
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Woźniak-Budych M, Zgórzyńska U, Przysiecka Ł, Załęski K, Jarek M, Jancelewicz M, Domke A, Iatsunskyi I, Nowaczyk G, Staszak K, Wieczorek D, Tylkowski B. Copper oxide(I) nanoparticle-modified cellulose acetate membranes with enhanced antibacterial and antifouling properties. ENVIRONMENTAL RESEARCH 2024; 252:119068. [PMID: 38705452 DOI: 10.1016/j.envres.2024.119068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 04/24/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
Cellulose acetate membranes exhibit a potential to be applied in hemodialysis. However, their performance is limited by membrane fouling and a lack of antibacterial properties. In this research, copper oxide (I) nanoparticles were fabricated in situ into a cellulose acetate matrix in the presence of polyvinylpyrrolidone (pore-forming agent) and sulfobetaine (stabilising agent) to reduce the leakage of copper ions from nano-enhanced membranes. The influence of nanoparticles on the membrane structure and their antibacterial and antifouling properties were investigated. The results showed that incorporating Cu2O NPs imparted significant antibacterial properties against Staphylococcus aureus and fouling resistance under physiological conditions. The Cu2O NPs-modified membrane could pave the way for potential dialysis applications.
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Affiliation(s)
- Marta Woźniak-Budych
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland.
| | - Urszula Zgórzyńska
- Institute of Technology and Chemical Engineering, Poznan University of Technology, ul. Berdychowo 4, 60-965 Poznan, Poland
| | - Łucja Przysiecka
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Karol Załęski
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Marcin Jarek
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Mariusz Jancelewicz
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Aleksandra Domke
- Institute of Technology and Chemical Engineering, Poznan University of Technology, ul. Berdychowo 4, 60-965 Poznan, Poland
| | - Igor Iatsunskyi
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Grzegorz Nowaczyk
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Katarzyna Staszak
- Institute of Technology and Chemical Engineering, Poznan University of Technology, ul. Berdychowo 4, 60-965 Poznan, Poland
| | - Daria Wieczorek
- Poznan University of Economics and Business, Department of Technology and Instrumental Analysis, Faculty of Commodity Science, al. Niepodległości 10, Poznan, 61-875, Poland
| | - Bartosz Tylkowski
- Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Faculty of Health Science, Department of Clinical Neuropsychology, ul. Skłodowskiej Curie 9, 85-094 Bydgoszcz, Poland
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Zhao C, Chen N, Liu T, Liu W, Dipama WE, Feng C. The mechanism of microbial sulfate reduction in high concentration sulfate wastewater enhanced by maifanite. WATER RESEARCH 2024; 258:121775. [PMID: 38761596 DOI: 10.1016/j.watres.2024.121775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 05/01/2024] [Accepted: 05/12/2024] [Indexed: 05/20/2024]
Abstract
Excessive sulfate levels in water bodies pose a dual threat to the ecological environment and human health. The microbial removal of sulfate encounters challenges, particularly in environments with high sulfate concentrations, where the gradual accumulation of sulfide hampers microbial activity. This study focuses on elucidating the mechanisms underlying the enhancement of microbial sulfate reduction in high-concentration sulfate wastewater through a comparative analysis of maifanite and zeolite biostimulants. The investigation reveals that zeolite primarily facilitates microbial growth by providing attachment sites, while maifanite augments sulfate-reducing bacteria (SRB) activity through the release of active substances such as Mo, Ca, and Cu. The addition of maifanite proves instrumental in enhancing microbial activity, manifesting as increased microbial load and protein production, augmented extracellular polymer generation, accelerated electron transfer, and facilitated microbial growth and biofilm formation. Noteworthy is the observation that the combined application of maifanite and zeolite exhibited a synergistic effect, resulting in a 167 % and 68 % increase in sulfate reduction rate compared to the utilization of maifanite (0.12 d-1) or zeolite (0.19 d-1) in isolation. Within this synergistic context, the relative abundance of Desulfobacteraceae reaches a peak of 15.4 %. The outcomes of this study corroborate the distinct promotion mechanisms of maifanite and zeolite in microbial sulfate reduction, offering novel insights into the application of maifanite in the context of high-concentration sulfate removal.
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Affiliation(s)
- Chaorui Zhao
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Nan Chen
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Tong Liu
- The Key Laboratory of Orogenic Belts and Crustal Evolution, Beijing Key Laboratory of Mineral Environmental Function, School of Earth and Space Sciences, Peking University, Beijing 100871, China
| | - Wenjun Liu
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Wesmanegda Elisee Dipama
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Chuanping Feng
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, PR China.
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D'Agostino A, Misiti G, Scalia AC, Pavarini M, Fiorati A, Cochis A, Rimondini L, Borrini VF, Manfredi M, Andena L, De Nardo L, Chiesa R. Gallium-doped zirconia coatings modulate microbiological outcomes in dental implant surfaces. J Biomed Mater Res A 2024. [PMID: 38884299 DOI: 10.1002/jbm.a.37727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 01/22/2024] [Accepted: 04/14/2024] [Indexed: 06/18/2024]
Abstract
Despite the significant recent advances in manufacturing materials supporting advanced dental therapies, peri-implantitis still represents a severe complication in dental implantology. Herein, a sol-gel process is proposed to easily deposit antibacterial zirconia coatings onto bulk zirconia, material, which is becoming very popular for the manufacturing of abutments. The coatings' physicochemical properties were analyzed through x-ray diffraction and scanning electron microscopy-energy-dispersive x-ray spectroscopy investigations, while their stability and wettability were assessed by microscratch testing and static contact angle measurements. Uniform gallium-doped tetragonal zirconia coatings were obtained, featuring optimal mechanical stability and a hydrophilic behavior. The biological investigations pointed out that gallium-doped zirconia coatings: (i) displayed full cytocompatibility toward human gingival fibroblasts; (ii) exhibited significant antimicrobial activity against the Aggregatibacter actinomycetemcomitans pathogen; (iii) were able to preserve the commensal Streptococcus salivarius. Furthermore, the proteomic analyses revealed that the presence of Ga did not impair the normal oral microbiota. Still, interestingly, it decreased by 17% the presence of Fusobacterium nucleatum, a gram-negative, strictly anaerobic bacteria that is naturally present in the gastrointestinal tract. Therefore, this work can provide a valuable starting point for the development of coatings aimed at easily improving zirconia dental implants' performance.
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Affiliation(s)
- Agnese D'Agostino
- National Interuniversity Consortium of Materials Science and Technology (INSTM), local unit Politecnico di Milano, Milan, Lombardy, Italy
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Lombardy, Italy
| | - Giulia Misiti
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Lombardy, Italy
| | | | - Matteo Pavarini
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Lombardy, Italy
| | - Andrea Fiorati
- National Interuniversity Consortium of Materials Science and Technology (INSTM), local unit Politecnico di Milano, Milan, Lombardy, Italy
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Lombardy, Italy
| | - Andrea Cochis
- Department of Health Sciences, Università del Piemonte Orientale, Novara, Piedmont, Italy
| | - Lia Rimondini
- Department of Health Sciences, Università del Piemonte Orientale, Novara, Piedmont, Italy
| | | | - Marcello Manfredi
- Department of Translational Medicine, Università del Piemonte Orientale, Novara, Piedmont, Italy
| | - Luca Andena
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Lombardy, Italy
| | - Luigi De Nardo
- National Interuniversity Consortium of Materials Science and Technology (INSTM), local unit Politecnico di Milano, Milan, Lombardy, Italy
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Lombardy, Italy
| | - Roberto Chiesa
- National Interuniversity Consortium of Materials Science and Technology (INSTM), local unit Politecnico di Milano, Milan, Lombardy, Italy
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Lombardy, Italy
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Weaver DF. Endogenous Antimicrobial-Immunomodulatory Molecules: Networking Biomolecules of Innate Immunity. Chembiochem 2024; 25:e202400089. [PMID: 38658319 DOI: 10.1002/cbic.202400089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/21/2024] [Accepted: 04/24/2024] [Indexed: 04/26/2024]
Abstract
Endogenous antimicrobial-immunomodulatory molecules (EAIMs) are essential to immune-mediated human health and evolution. Conventionally, antimicrobial peptides (AMPs) have been regarded as the dominant endogenous antimicrobial molecule; however, AMPs are not sufficient to account for the full spectrum of antimicrobial-immunomodulatory duality occurring within the human body. The threat posed by pathogenic microbes is pervasive with the capacity for widespread impact across many organ systems and multiple biochemical pathways; accordingly, the host needs the capacity to react with an equally diverse response. This can be attained by having EAIMs that traverse the full range of molecular size (small to large molecules) and structural diversity (including molecules other than peptides). This review identifies multiple molecules (peptide/protein, lipid, carbohydrate, nucleic acid, small organic molecule, and metallic cation) as EAIMs and discusses the possibility of cooperative, additive effects amongst the various EAIM classes during the host response to a microbial assault. This comprehensive consideration of the full molecular diversity of EAIMs enables the conclusion that EAIMs constitute a previously uncatalogued structurally diverse and collectively underappreciated immuno-active group of integrated molecular responders within the innate immune system's first line of defence.
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Affiliation(s)
- Donald F Weaver
- Departments of Chemistry and Medicine, University of Toronto, Krembil Research Institute, University Health Network, Toronto, ON, M5Y 0S8, Canada
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Fernandez M, Thompson J, Calle A. Novel feed additive delivers antimicrobial copper and influences fecal microbiota in pigs. Microbiol Spectr 2024; 12:e0428023. [PMID: 38629838 DOI: 10.1128/spectrum.04280-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 03/18/2024] [Indexed: 06/06/2024] Open
Abstract
Dehydrated alginate beads formulated with copper were synthesized and tested as a feed additive to influence the microbiota in finishing pigs and potentially use them as a preharvest intervention to reduce fecal pathogen shedding. The efficacy of the copper beads was tested in vitro and in vivo. In vitro, Salmonella was significantly (P < 0.05) reduced when in contact with the copper beads solution for up to 6 h, with a 5.4 log CFU/mL reduction over the first hour. Chemical analysis of the soak solutions demonstrated the beads delivered their copper payload gradually over the same period the bactericidal effect was observed. For the in vivo experiments, pigs (n = 48) supplemented with the copper beads experienced significant shifts in their microbiota. Enterobacteriaceae (EB) increased by 1.07 log CFU/g (P < 0.05), while lactic acid bacteria (LAB) decreased by 1.22 log CFU/g (P < 0.05) during the treatment period. When beads were removed from the feed, EB and LAB concentrations returned to baseline, indicating copper beads led to measurable and significant changes in microbial loads. Fecal microbiome analysis conducted to explore additional changes by copper bead supplementation demonstrated that, at the phylum level, there was an increase in Firmicutes, Euryarchaeota, and Acidobacteriota, while at the genus level, an increase in Methanosphaera and Pseudomonas was observed. Measures of copper in swine feces showed values ~20 times higher in the treatment group than in the control group during the treatment period, suggesting that dehydrated alginate copper beads were effective in delivering antimicrobial copper to the animal hindgut.IMPORTANCECopper has long been known to have antimicrobial properties. However, when water-soluble salts are fed to livestock, the copper may rapidly dissolve in gastric contents and fail to reach the gut. Here, specially formulated copper beads are seamlessly incorporated into feed and allow copper to remain longer in the gastrointestinal tract of animals, reach deep into both the foregut and hindgut, and shift microbial populations. The technology delivers antimicrobial copper to the animal hindgut and potentially reduces pathogenic microorganisms before animal slaughter.
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Affiliation(s)
- Mariana Fernandez
- Texas Tech University, School of Veterinary Medicine, Amarillo, Texas, USA
| | - Jonathan Thompson
- Texas Tech University, School of Veterinary Medicine, Amarillo, Texas, USA
| | - Alexandra Calle
- Texas Tech University, School of Veterinary Medicine, Amarillo, Texas, USA
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Wang L, Zhao Z, Li X, Zhao X, Li S, Li H. Ecofriendly dual-function cotton fabric with antibacterial and anti-adhesion properties based on modified natural materials. Int J Biol Macromol 2024; 271:132698. [PMID: 38824104 DOI: 10.1016/j.ijbiomac.2024.132698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 05/23/2024] [Accepted: 05/26/2024] [Indexed: 06/03/2024]
Abstract
Ecofriendly fabrics with antibacterial and anti-adhesion properties have been attracted an increasing attention in recent years. Herein, natural menthol modified polyacrylate (PMCA) antibacterial adhesion agent was synthesized by esterification and polymerisation while natural pterostilbene-grafted-chitosan (PGC) antibacterial agent was prepared through Mannich reaction. The antibacterial and anti-adhesion cotton fabric was fabricated through durable PMCA dip finishing and then layer-by-layer self-assembly of PGC. The results showed that the antibacterial adhesion rates and antibacterial rates of the dual-function cotton fabric against Staphylococcus aureus and Escherichia coli reached up to 99.9 %. Its antibacterial adhesion rates improved by 36.1 % and 40.1 % in comparison with those of cotton fabric treated by menthol alone. Meanwhile against S. aureus, the dual-function cotton fabrics improved the antibacterial rates by 56.7 % and 36.4 %, respectively, from those of chitosan- and pterostilbene-treated fabrics. Against E. coli, the improvements were 89.4 % and 24.8 %, respectively. After 20 household washings, the dual-function cotton fabric maintained >80 % of its original anti-adhesion and antibacterial rates against both species. The dual-function cotton fabric also possessed safe and excellent wearability.
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Affiliation(s)
- Lili Wang
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles (Ministry of Education), College of Textiles Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China; Tongxiang Research Institute, Zhejiang Sci-Tech University, Tongxiang 314500, PR China.
| | - Zhiqiang Zhao
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles (Ministry of Education), College of Textiles Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Xiangyu Li
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles (Ministry of Education), College of Textiles Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Xiaomin Zhao
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles (Ministry of Education), College of Textiles Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Shuokang Li
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles (Ministry of Education), College of Textiles Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Huijun Li
- Hangzhou Huasi Xiasha Textile Technology Co., LTD., Hangzhou 311199, PR China
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Garinie T, Nusillard W, Lelièvre Y, Taranu ZE, Goubault M, Thiéry D, Moreau J, Louâpre P. Adverse effects of the Bordeaux mixture copper-based fungicide on the non-target vineyard pest Lobesia botrana. PEST MANAGEMENT SCIENCE 2024. [PMID: 38801156 DOI: 10.1002/ps.8195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/29/2024] [Accepted: 05/13/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND Bordeaux mixture is a copper-based fungicide commonly used in vineyards to prevent fungal and bacterial infections in grapevines. However, this fungicide may adversely affect the entomological component, including insect pests. Understanding the impacts of Bordeaux mixture on the vineyard pest Lobesia botrana is an increasing concern in the viticultural production. RESULTS Bordeaux mixture had detrimental effects on the development and reproductive performance of L. botrana. Several physiological traits were adversely affected by copper-based fungicide exposure, including a decrease in larval survival and a delayed larval development to moth emergence, as well as a reduced reproductive performance through a decrease in female fecundity and fertility and male sperm quality. However, we did not detect any effect of Bordeaux mixture on the measured reproductive behaviors (mating success, pre-mating latency and mating duration). CONCLUSION Ingestion by larvae of food contaminated with Bordeaux mixture had a negative effect on the reproductive performance of the pest L. botrana, which could affect its population dynamics in vineyards. Although this study highlighted collateral damage of Bordeaux mixture on L. botrana, the potential impact of copper-based fungicides on vineyard diversity, including natural predators is discussed and needs to be taken in consideration in integrated pest management. © 2024 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Tessie Garinie
- Biogéosciences, UMR 6282 CNRS, Université de Bourgogne, Dijon, France
| | - William Nusillard
- Biogéosciences, UMR 6282 CNRS, Université de Bourgogne, Dijon, France
- AgroParisTech, Palaiseau, France
| | - Yann Lelièvre
- Biogéosciences, UMR 6282 CNRS, Université de Bourgogne, Dijon, France
| | - Zofia E Taranu
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, ECCC, Montréal, Canada
| | - Marlène Goubault
- Institut de la Recherche sur la Biologie de l'Insecte, UMR 7261 CNRS, Université de Tours, Tours, France
| | - Denis Thiéry
- INRA (French National Institute for Agricultural Research), UMR 1065 Save, BSA, Centre de recherches INRAe Nouvelle-Aquitaine-Bordeaux, Villenave d'Ornon Cedex, France
| | - Jérôme Moreau
- Biogéosciences, UMR 6282 CNRS, Université de Bourgogne, Dijon, France
- Centre d'Études Biologiques de Chizé, CNRS and La Rochelle Université, Villiers-en-Bois, France
| | - Philippe Louâpre
- Biogéosciences, UMR 6282 CNRS, Université de Bourgogne, Dijon, France
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Tummino ML, Cruz-Maya I, Varesano A, Vineis C, Guarino V. Keratin/Copper Complex Electrospun Nanofibers for Antibacterial Treatments: Property Investigation and In Vitro Response. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2435. [PMID: 38793501 PMCID: PMC11123490 DOI: 10.3390/ma17102435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/14/2024] [Accepted: 05/16/2024] [Indexed: 05/26/2024]
Abstract
The frontiers of antibacterial materials in the biomedical field are constantly evolving since infectious diseases are a continuous threat to human health. In this work, waste-wool-derived keratin electrospun nanofibers were blended with copper by an optimized impregnation procedure to fabricate antibacterial membranes with intrinsic biological activity, excellent degradability and good cytocompatibility. The keratin/copper complex electrospun nanofibers were multi-analytically characterized and the main differences in their physical-chemical features were related to the crosslinking effect caused by Cu2+. Indeed, copper ions modified the thermal profiles, improving the thermal stability (evaluated by differential scanning calorimetry and thermogravimetry), and changed the infrared vibrational features (determined by infrared spectroscopy) and the chemical composition (studied by an X-ray energy-dispersive spectroscopy probe and optical emission spectrometry). The copper impregnation process also affected the morphology, leading to partial nanofiber swelling, as evidenced by scanning electron microscopy analyses. Then, the membranes were successfully tested as antibacterial materials against gram-negative bacteria, Escherichia coli. Regarding cytocompatibility, in vitro assays performed with L929 cells showed good levels of cell adhesion and proliferation (XTT assay), and no significant cytotoxic effect, in comparison to bare keratin nanofibers. Given these results, the material described in this work can be suitable for use as antibiotic-free fibers for skin wound dressing or membranes for guided tissue regeneration.
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Affiliation(s)
- Maria Laura Tummino
- Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing (STIIMA), National Research Council of Italy (CNR), Corso Giuseppe Pella 16, 13900 Biella, Italy
| | - Iriczalli Cruz-Maya
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy (CNR), Mostra d’Oltremare, Pad. 20, V. le J.F. Kennedy 54, 80125 Napoli, Italy (V.G.)
| | - Alessio Varesano
- Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing (STIIMA), National Research Council of Italy (CNR), Corso Giuseppe Pella 16, 13900 Biella, Italy
| | - Claudia Vineis
- Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing (STIIMA), National Research Council of Italy (CNR), Corso Giuseppe Pella 16, 13900 Biella, Italy
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy (CNR), Mostra d’Oltremare, Pad. 20, V. le J.F. Kennedy 54, 80125 Napoli, Italy (V.G.)
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11
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Hia EM, Jang SR, Maharjan B, Park J, Park CH. Cu-MSNs and ZnO nanoparticles incorporated poly(ethylene glycol) diacrylate/sodium alginate double network hydrogel for simultaneous enhancement of osteogenic differentiation. Colloids Surf B Biointerfaces 2024; 236:113804. [PMID: 38428209 DOI: 10.1016/j.colsurfb.2024.113804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/19/2024] [Accepted: 02/15/2024] [Indexed: 03/03/2024]
Abstract
In this study, a double network (DN) hydrogel was synthesized using poly(ethylene glycol) diacrylate (PEGDA) and sodium alginate (SA), incorporating copper-doped mesoporous silica nanospheres (Cu-MSNs) and zinc oxide nanoparticles (ZnO NPs). The blending of PEGDA and SA (PS) facilitates the double network and improves the less porous microstructure of pure PEGDA hydrogel. Furthermore, the incorporation of ZnO NPs and Cu-MSNs into the hydrogel network (PS@ZnO/Cu-MSNs) improved the mechanical properties of the hydrogel (Compressive strength = ⁓153 kPa and Young's modulus = ⁓ 1.66 kPa) when compared to PS hydrogel alone (Compressive strength = ⁓ 103 kPa and Young's modulus = ⁓ 0.95 kPa). In addition, the PS@ZnO/Cu-MSNs composite hydrogel showed antibacterial activities against Staphylococcus aureus and Escherichia coli. Importantly, the PS@ZnO/Cu-MSNs hydrogel demonstrated excellent biocompatibility, enhanced MC3T3-E1 cell adhesion, proliferation, and significant early-stage osteoblastic differentiation, as evidenced by increased alkaline phosphatase (ALP), and improved calcium mineralization, as evidenced by increased alizarin red staining (ARS) activities. These findings point to the possible use of the PS@ZnO/Cu-MSNs composite hydrogel in bone tissue regeneration.
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Affiliation(s)
- Esensil Man Hia
- Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, the Republic of Korea; Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, the Republic of Korea
| | - Se Rim Jang
- Division of Mechanical Design Engineering, Jeonbuk National University, Jeonju 561-756, the Republic of Korea
| | - Bikendra Maharjan
- Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, the Republic of Korea
| | - Jeesoo Park
- Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, the Republic of Korea
| | - Chan Hee Park
- Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, the Republic of Korea; Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, the Republic of Korea; Division of Mechanical Design Engineering, Jeonbuk National University, Jeonju 561-756, the Republic of Korea.
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12
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Szarszoń K, Mikołajczyk A, Grelich-Mucha M, Wieczorek R, Matera-Witkiewicz A, Olesiak-Bańska J, Rowińska-Żyrek M, Wątły J. Bioinorganic chemistry of shepherin II complexes helps to fight Candida albicans? J Inorg Biochem 2024; 253:112476. [PMID: 38171045 DOI: 10.1016/j.jinorgbio.2023.112476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/04/2023] [Accepted: 12/22/2023] [Indexed: 01/05/2024]
Abstract
The fungal cell wall and cell membrane are an important target for antifungal therapies, and a needle-like cell wall or membrane disruption may be an entirely novel antifungal mode of action. In this work, we show how the coordination of Zn(II) triggers the antifungal properties of shepherin II, a glycine- and histidine-rich antimicrobial peptide from the root of Capsella bursa-pastoris. We analyze Cu(II) and Zn(II) complexes of this peptide using experimental and theoretical methods, such as: mass spectrometry, potentiometry, UV-Vis and CD spectroscopies, AFM imaging, biological activity tests and DFT calculations in order to understand the correlation between their metal binding mode, structure, morphology and biological activity. We observe that Zn(II) coordinates to Shep II and causes a structural change, resulting in fibril formation, what has a pronounced biological consequence - a strong anticandidal activity. This phenomenon was observed neither for the peptide itself, nor for its copper(II) complex. The Zn(II) - shepherin II complex can be considered as a starting point for further anticandidal drug discovery, which is extremely important in the era of increasing antifungal drug resistance.
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Affiliation(s)
- Klaudia Szarszoń
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Aleksandra Mikołajczyk
- Screening of Biological Activity Assays and Collection of Biological Material Laboratory, Wrocław Medical University Biobank, Faculty of Pharmacy, Wrocław Medical University, 50-556 Wrocław, Poland
| | - Manuela Grelich-Mucha
- Faculty of Chemistry, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Robert Wieczorek
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Agnieszka Matera-Witkiewicz
- Screening of Biological Activity Assays and Collection of Biological Material Laboratory, Wrocław Medical University Biobank, Faculty of Pharmacy, Wrocław Medical University, 50-556 Wrocław, Poland
| | - Joanna Olesiak-Bańska
- Faculty of Chemistry, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
| | | | - Joanna Wątły
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland.
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13
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Lorenzetti L, Brandolini M, Gatti G, Bernardi E, Chiavari C, Gualandi P, Galliani G, Sambri V, Martini C. Cu-based thin rolled foils: relationship among alloy composition, micromechanical and antiviral properties against SARS-CoV-2. Heliyon 2024; 10:e28238. [PMID: 38560697 PMCID: PMC10979200 DOI: 10.1016/j.heliyon.2024.e28238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 04/04/2024] Open
Abstract
The healthcare-associated infections (HAIs) and pandemics caused by multidrug-resistant (MDR) and new-generation pathogens threaten the whole world community. Cu and its alloys have been attracting widespread interest as anti-contamination materials due to the rapid inactivation of MDR-superbugs and viruses. Applying thin Cu-based foils on pre-existing surfaces in hygiene-sensitive areas represents a quick, simple, cost-effective self-sanitising practice. However, the influence of chemical composition and microstructure should be deeply investigated when evaluating the antimicrobial capability and durability of Cu-based materials. The effect of composition on micromechanical and antiviral properties was investigated by comparing Cu15Zn and Cu18Ni20Zn (foil thickness from 13 to 27 μm) with Phosphorous High-Conductivity (PHC) Cu. The influence of recrystallisation annealing of PHC Cu was also investigated. Microstructural characterisation was carried out by optical (OM) and scanning electron (FEG-SEM) microscopy, Energy-dispersive Spectroscopy (EDS) and Electron-Backscattered Diffraction (EBSD). The micromechanical behaviour was assessed by microhardness, microscale abrasion and scratch tests. Cu-based foils were exposed to SARS-CoV-2 for different time points in quasi-dry conditions (artificial sweat solution), evaluating their antiviral capability by quantitative Reverse-Transcriptase Polymerase Chain Reaction (qRT-PCR). Surface morphology, contact angle measurements and Cu release were measured. All Cu-based surfaces completely inactivated SARS-CoV-2 in 10 min: pure Cu was the best option regarding antiviral efficiency, while Cu15Zn showed the best trade-off between micromechanical and antiviral properties.
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Affiliation(s)
- L. Lorenzetti
- Dept. Industrial Engineering (DIN), University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - M. Brandolini
- Unit of Microbiology, The Great Romagna Hub Laboratory, Piazza della Liberazione 60, 47522 Pievesestina, Italy
- Dept. Medical and Surgical Sciences (DIMEC), University of Bologna, Via Irnerio 49, 40126 Bologna, Italy
| | - G. Gatti
- Unit of Microbiology, The Great Romagna Hub Laboratory, Piazza della Liberazione 60, 47522 Pievesestina, Italy
- Dept. Medical and Surgical Sciences (DIMEC), University of Bologna, Via Irnerio 49, 40126 Bologna, Italy
| | - E. Bernardi
- Dept. Industrial Chemistry "Toso Montanari", University of Bologna, Via Piero Gobetti 85, Bologna 40129, Italy
| | - C. Chiavari
- Dept. Cultural Heritage (DBC), University of Bologna, Via degli Ariani 1, 48121 Ravenna, Italy
| | - P. Gualandi
- Pietro Galliani SpA, Via Molino Malpasso 65, 40038 Vergato (BO), Italy
| | - G. Galliani
- Pietro Galliani SpA, Via Molino Malpasso 65, 40038 Vergato (BO), Italy
| | - V. Sambri
- Unit of Microbiology, The Great Romagna Hub Laboratory, Piazza della Liberazione 60, 47522 Pievesestina, Italy
- Dept. Medical and Surgical Sciences (DIMEC), University of Bologna, Via Irnerio 49, 40126 Bologna, Italy
| | - C. Martini
- Dept. Industrial Engineering (DIN), University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
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14
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Li J, Lu L, Jiang Y, Tang F, Wu Q, Liu H, Zeng Q. Evaluation of antibacterial activity and influencing factors of normal and nanostructured copper-based materials. Heliyon 2024; 10:e27903. [PMID: 38509957 PMCID: PMC10950676 DOI: 10.1016/j.heliyon.2024.e27903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 03/07/2024] [Accepted: 03/07/2024] [Indexed: 03/22/2024] Open
Abstract
Background Copper-based materials have garnered extensive recognition for their effective nature against microorganisms and their minimal toxicity. However, the evaluation for their antibacterial activity is still in its nascent stages, and the evaluation results based on existing criteria are not representative of real-world application. Aim To evaluate the antibacterial activity and primary determinants of influence of copper-based materials in order to investigate their practical antibacterial activity and potential mechanisms of such materials. Methods Staphylococcus aureus and Escherichia coli bacterial suspensions were applied via inoculation onto the surfaces of normal and nanostructured copper foil. Following incubation of the inoculated surfaces under diverse experimental conditions-including varying compositions of the bacterial suspension, the use of chemical neutralizers, the existence of organic interferents, and low temperature and humidity-surviving bacteria were enumerated. Using the scanning electron microscopy and X-ray photoelectron spectroscopy, the surface changes of copper-based materials were examined. Findings Following 1 h of exposure to 37 °C and 90% relative humidity, Staphylococcus aureus was reduced by 4.45 log10 on normal copper foil, while all of the bacteria were eradicated on nanostructured copper foil. In addition, it was discovered that preparing a bacterial suspension with PBS results in a significant number of Escherichia coli fatalities during the test, whereas using TPS promotes the bacteria's normal growth. Furthermore, the outcomes of the antibacterial activity test were diminished when chemical neutralization was employed, and the presence of organic interferents had distinct impacts on normal copper foil and nanostructured copper foil. Additionally, low temperatures and humidity diminished the antibacterial activity of copper foil, whereas normal copper foil produced significantly better results. Conclusion While copper-based materials exhibit robust antibacterial activity as determined by standard assays, their efficacy in real-world applications is subject to various influencing mechanisms. In order to objectively evaluate the antibacterial activity of copper-based materials and provide precise guidance for their development and practical application, it is essential to regulate test conditions with targeted.
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Affiliation(s)
- Jiahao Li
- Hubei Province Center for Disease Control and Prevention, Wuhan, Hubei, 430079, China
- Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Luhua Lu
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430070, China
| | - Yongzhong Jiang
- Hubei Province Center for Disease Control and Prevention, Wuhan, Hubei, 430079, China
| | - Fei Tang
- Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Qiao Wu
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430070, China
| | - He Liu
- Tianjin Centers for Disease Control and Prevention, Tianjin, 300011, China
| | - Qili Zeng
- Hubei Province Center for Disease Control and Prevention, Wuhan, Hubei, 430079, China
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15
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Wang D, Yuan C, Li Y, Bai S, Feng J, Wang Y, Fang Y, Zhang Z. Chelation of the Optimal Antifungal Pogostone Analogue with Copper(II) to Explore the Dual Antifungal and Antibacterial Agent. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:3894-3903. [PMID: 38366986 DOI: 10.1021/acs.jafc.3c07050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2024]
Abstract
In an ongoing effort to explore more potent antifungal pogostone (Po) analogues, we maintained the previously identified 3-acetyl-4-hydroxy-2-pyrone core motif while synthesizing a series of Po analogues with variations in the alkyl side chain. The in vitro bioassay results revealed that compound 21 was the most potent antifungal analogue with an EC50 value of 1.1 μg/mL against Sclerotinia sclerotiorum (Lib.) de Bary. Meanwhile, its Cu(II) complex 34 manifested significantly enhanced antibacterial activity against Xanthomonas campestris pv campestris (Xcc) with a minimum inhibitory concentration (MIC) value of 300 μg/mL compared with 21 (MIC = 700 μg/mL). Complex 34 exhibited a striking preventive effect against S. sclerotiorum and Xcc in rape leaves, with control efficacies of 98.8% (50 μg/mL) and 80.7% (1000 μg/mL), respectively. The 3D-QSAR models generated using Topomer comparative molecular field analysis indicated that a shorter alkyl chain (carbon atom number <8), terminal rings, or electron-deficient groups on the alkyl side chain are beneficial for antifungal potency. Further, bioassay results revealed that the component of 21 in complex 34 dominated the antifungal activity, but the introduction of Cu(II) significantly enhanced its antibacterial activity. The toxicological observations demonstrated that 21 could induce abnormal mitochondrial morphology, loss of mitochondrial membrane potential, and reactive oxygen species (ROS) accumulation in S. sclerotiorum. The enzyme assay results showed that 21 is a moderate promiscuous inhibitor of mitochondrial complexes II and III. Besides, the introduction of Cu(II) to 34 could promote the disruption of the cell membrane and intracellular proteins and the ROS level in Xcc compared with 21. In summary, these results highlight the potential of 34 as a dual antifungal and antibacterial biocide for controlling rape diseases or as a promising candidate for further optimization.
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Affiliation(s)
- Delong Wang
- College of Plant Protection, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Shanxi Agricultural University, Taiyuan 030031, Shanxi, China
| | - Chunxia Yuan
- College of Plant Protection, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Shanxi Agricultural University, Taiyuan 030031, Shanxi, China
| | - Yunpeng Li
- College of Plant Protection, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Shanxi Agricultural University, Taiyuan 030031, Shanxi, China
| | - Shuhong Bai
- College of Plant Protection, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Shanxi Agricultural University, Taiyuan 030031, Shanxi, China
| | - Juntao Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yong Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yali Fang
- College of Plant Protection, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Shanxi Agricultural University, Taiyuan 030031, Shanxi, China
| | - Zhijia Zhang
- College of Plant Protection, Shanxi Key Laboratory of Integrated Pest Management in Agriculture, Shanxi Agricultural University, Taiyuan 030031, Shanxi, China
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16
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Karan A, Sharma NS, Darder M, Su Y, Andrabi SM, Shahriar SMS, John JV, Luo Z, DeCoster MA, Zhang YS, Xie J. Copper-Cystine Biohybrid-Embedded Nanofiber Aerogels Show Antibacterial and Angiogenic Properties. ACS OMEGA 2024; 9:9765-9781. [PMID: 38434900 PMCID: PMC10905775 DOI: 10.1021/acsomega.3c10012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/15/2024] [Accepted: 02/01/2024] [Indexed: 03/05/2024]
Abstract
Copper-cystine-based high aspect ratio structures (CuHARS) possess exceptional physical and chemical properties and exhibit remarkable biodegradability in human physiological conditions. Extensive testing has confirmed the biocompatibility and biodegradability of CuHARS under diverse biological conditions, making them a viable source of essential Cu2+. These ions are vital for catalyzing the production of nitric oxide (NO) from the decomposition of S-nitrosothiols (RSNOs) found in human blood. The ability of CuHARS to act as a Cu2+ donor under specific concentrations has been demonstrated in this study, resulting in the generation of elevated levels of NO. Consequently, this dual function makes CuHARS effective as both a bactericidal agent and a promoter of angiogenesis. In vitro experiments have shown that CuHARS actively promotes the migration and formation of complete lumens by redirecting microvascular endothelial cells. To maximize the benefits of CuHARS, they have been incorporated into biomimetic electrospun poly(ε-caprolactone)/gelatin nanofiber aerogels. Through the regulated release of Cu2+ and NO production, these channeled aerogels not only provide antibacterial support but also promote angiogenesis. Taken together, the inclusion of CuHARS in biomimetic scaffolds could hold great promise in revolutionizing tissue regeneration and wound healing.
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Affiliation(s)
- Anik Karan
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Navatha Shree Sharma
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Margarita Darder
- Instituto
de Ciencia de Materiales de Madrid (ICMM), CSIC, Madrid 28049, Spain
| | - Yajuan Su
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Syed Muntazir Andrabi
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - S M Shatil Shahriar
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Johnson V. John
- Terasaki
Institute for Biomedical Innovation, Los Angeles, California 90024, United States
| | - Zeyu Luo
- Division
of Engineering in Medicine, Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
| | - Mark A. DeCoster
- Biomedical
Engineering, Louisiana Tech University, Ruston, Louisiana 71272, United States
- Institute
for Micromanufacturing, Louisiana Tech University, Ruston, Louisiana 71272, United States
| | - Yu Shrike Zhang
- Division
of Engineering in Medicine, Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
| | - Jingwei Xie
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
- Department
of Mechanical and Materials Engineering, University of Nebraska Lincoln, Lincoln, Nebraska 68588, United States
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17
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Hilton J, Nanao Y, Flokstra M, Askari M, Smith TK, Di Falco A, King PDC, Wahl P, Adamson CS. The role of ion dissolution in metal and metal oxide surface inactivation of SARS-CoV-2. Appl Environ Microbiol 2024; 90:e0155323. [PMID: 38259079 PMCID: PMC10880620 DOI: 10.1128/aem.01553-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/28/2023] [Indexed: 01/24/2024] Open
Abstract
Anti-viral surface coatings are under development to prevent viral fomite transmission from high-traffic touch surfaces in public spaces. Copper's anti-viral properties have been widely documented, but the anti-viral mechanism of copper surfaces is not fully understood. We screened a series of metal and metal oxide surfaces for anti-viral activity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease (COVID-19). Copper and copper oxide surfaces exhibited superior anti-SARS-CoV-2 activity; however, the level of anti-viral activity was dependent on the composition of the carrier solution used to deliver virus inoculum. We demonstrate that copper ions released into solution from test surfaces can mediate virus inactivation, indicating a copper ion dissolution-dependent anti-viral mechanism. The level of anti-viral activity is, however, not dependent on the amount of copper ions released into solution per se. Instead, our findings suggest that degree of virus inactivation is dependent on copper ion complexation with other biomolecules (e.g., proteins/metabolites) in the virus carrier solution that compete with viral components. Although using tissue culture-derived virus inoculum is experimentally convenient to evaluate the anti-viral activity of copper-derived test surfaces, we propose that the high organic content of tissue culture medium reduces the availability of "uncomplexed" copper ions to interact with the virus, negatively affecting virus inactivation and hence surface anti-viral performance. We propose that laboratory anti-viral surface testing should include virus delivered in a physiologically relevant carrier solution (saliva or nasal secretions when testing respiratory viruses) to accurately predict real-life surface anti-viral performance when deployed in public spaces.IMPORTANCEThe purpose of evaluating the anti-viral activity of test surfaces in the laboratory is to identify surfaces that will perform efficiently in preventing fomite transmission when deployed on high-traffic touch surfaces in public spaces. The conventional method in laboratory testing is to use tissue culture-derived virus inoculum; however, this study demonstrates that anti-viral performance of test copper-containing surfaces is dependent on the composition of the carrier solution in which the virus inoculum is delivered to test surfaces. Therefore, we recommend that laboratory surface testing should include virus delivered in a physiologically relevant carrier solution to accurately predict real-life test surface performance in public spaces. Understanding the mechanism of virus inactivation is key to future rational design of improved anti-viral surfaces. Here, we demonstrate that release of copper ions from copper surfaces into small liquid droplets containing SARS-CoV-2 is a mechanism by which the virus that causes COVID-19 can be inactivated.
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Affiliation(s)
- Jane Hilton
- Biomedical Sciences Research Complex, School of Biology, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Yoshiko Nanao
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Machiel Flokstra
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Meisam Askari
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Terry K. Smith
- Biomedical Sciences Research Complex, School of Biology, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Andrea Di Falco
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Phil D. C. King
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Peter Wahl
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Catherine S. Adamson
- Biomedical Sciences Research Complex, School of Biology, University of St Andrews, St Andrews, Fife, United Kingdom
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18
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Yapa PN, Munaweera I, Sandaruwan C, Weerasinghe L, Weerasekera MM. Metal doped silica nanohybrids with extensive bacterial coverage for antibacterial applications exhibit synergistic activity. BIOMATERIALS ADVANCES 2024; 157:213753. [PMID: 38160632 DOI: 10.1016/j.bioadv.2023.213753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
Nanotechnology has triumphantly overcome several barriers that have formed in modern life. Bacterial infections are a critical public health issue. They emphasized the failure of conventional treatments, high mortality and morbidity rates, antibiotic resistance, and other factors leading to the development of novel and affordable antibacterial medications. In this study, three types of metals (Ag, Cu, and Co) were doped separately into a silanol network in silica nanoparticles. The synthesized monometallic nanohybrids were combined in equal proportions to formulate bi and trimetallic nanohybrids. They were characterized structurally and morphologically. Fourier transform infrared (FTIR) and Raman spectroscopy studies were used to investigate the formation of the bonds and the pertinent peak positions. X-ray diffractograms (XRD) validated the crystalline structures of the metal nanohybrids. X-ray photoelectron spectroscopic study (XPS) confirmed the successful addition of metals to the silanol network. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images were used to characterize the morphology of nanohybrids and demonstrate their dimensions are on the nanoscale. The fraction of each metal doped in the silanol network was determined using energy dispersive spectroscopy (EDS) and atomic absorption spectrometry (AAS). To assess activity and confirm antibacterial synergy, the antibacterial activity of all synthesized nanohybrids was examined. The minimum inhibitory concentration-MIC (Ranged from 12.25 to 1560.00 μg/mL), minimum bactericidal concentration-MBC (Ranged from 197.00 to 3125.00 μg/mL), IC50 values (Ranged from 30.56 to 1683.00 μg/mL-) and fractional inhibitory concentration index (FICI) were determined and compared. Well diffusion assay was conducted against both ATCC cultures and clinical samples of gram-positive bacteria; Staphylococcus aureus (ATCC 25923), Streptococcus pneumoniae (ATCC 49619), MRSA (ATCC 33591) and gram-negative bacteria; Escherichia coli (ATCC 25922), Klebsiella pneumoniae (ATCC BAA 1706) and Pseudomonas aeruginosa (ATCC 27853). The highest synergistic radical scavenging performance of trimetallic nanohybrid (90.67 ± 0.095 %) was established by the DPPH (2,2 diphenyl-1-picrylhydrazil) experiment. Finally, when compared to monometallic nanohybrids, it was demonstrated that the synthesized multimetallic nanohybrids have a substantial potential as an emerging and cost-effective antibacterial agent.
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Affiliation(s)
- P N Yapa
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
| | - I Munaweera
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka.
| | - C Sandaruwan
- Sri Lanka Institute of Nanotechnology (SLINTEC), Homagama 10200, Sri Lanka
| | - L Weerasinghe
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
| | - M M Weerasekera
- Department of Microbiology, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
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19
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Tian L, Sun L, Gao B, Li F, Li C, Wang R, Liu Y, Li X, Niu L, Zhang Z. Dual functionalized copper nanoparticles for thermoplastics with improved processing and mechanical properties and superior antibacterial performance. NANOSCALE 2024; 16:1320-1330. [PMID: 38131293 DOI: 10.1039/d3nr04548j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
The utilization of metal nanoparticles for antibacterial thermoplastic composites has the potential to enhance the safety of human and animal life by mitigating the spread and transmission of foodborne pathogenic bacteria. The dispersion, antioxidant and antimicrobial activities of metal nanoparticles directly affect the application performance of the composites. This study focused on achieving amine-carboxyl co-modified copper nanoparticles (Cu-AC) with excellent antioxidant properties and monodispersity through in situ grafting of amine and carboxyl groups onto the surface of copper nanoparticles via ligand interaction. Polyacrylic acid's extended carbon chain structure was utilized to improve its dispersion and antioxidant properties, and its antibacterial properties were synergistically enhanced using secondary amines. It was found that Cu-AC possesses high antibacterial properties, with a minimum inhibition concentration of 0.156 mg mL-1. Antibacterial masterbatches and their composites (polypropylene/Cu) manufactured by melt blending of polypropylene and Cu-AC exhibited excellent antibacterial rates of up to 90% and 99% at 300 ppm and 700 ppm Cu-AC, respectively. Additionally, Cu-AC bolstered the thermal degradation, processing and mechanical properties of polypropylene. The successful implementation of this product substantiates the potential applications of polypropylene/Cu composite materials across diverse industries.
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Affiliation(s)
- Lulu Tian
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China.
- Engineering Research Center for Nanomaterials Co., Ltd, Henan University, Jiyuan 459000, China
| | - Li Sun
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China.
| | - Bo Gao
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China.
| | - Fei Li
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China.
| | - Chaoran Li
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng 75004, China
| | - Ruoyu Wang
- Zhengzhou Lingyu New Material Co., Ltd, Zhengzhou 450100, China
| | - Yanfang Liu
- Zhengzhou Lingyu New Material Co., Ltd, Zhengzhou 450100, China
| | - Xiaohong Li
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China.
- Engineering Research Center for Nanomaterials Co., Ltd, Henan University, Jiyuan 459000, China
| | - Liyong Niu
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China.
- Engineering Research Center for Nanomaterials Co., Ltd, Henan University, Jiyuan 459000, China
| | - Zhijun Zhang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China.
- Engineering Research Center for Nanomaterials Co., Ltd, Henan University, Jiyuan 459000, China
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20
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Bondareva NE, Sheremet AB, Morgunova EY, Khisaeva IR, Parfenova AS, Chernukha MY, Omran FS, Emelyanenko AM, Boinovich LB. Study of the Antibacterial Activity of Superhydrophilic and Superhydrophobic Copper Substrates against Multi-Drug-Resistant Hospital-Acquired Pseudomonas aeruginosa Isolates. Int J Mol Sci 2024; 25:779. [PMID: 38255852 PMCID: PMC10815258 DOI: 10.3390/ijms25020779] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
The global spread of multidrug-resistant (MDR) hospital-acquired pathogens is a serious problem for healthcare units. The challenge of the spreading of nosocomial infections, also known as hospital-acquired pathogens, including Pseudomonas aeruginosa, must be addressed not only by developing effective drugs, but also by improving preventive measures in hospitals, such as passive bactericidal coatings deposited onto the touch surfaces. In this paper, we studied the antibacterial activity of superhydrophilic and superhydrophobic copper surfaces against the P. aeruginosa strain PA103 and its four different polyresistant clinical isolates with MDR. To fabricate superhydrophilic and superhydrophobic coatings, we subjected the copper surfaces to laser processing with further chemosorption of fluorooxysilane to get a superhydrophobic substrate. The antibacterial activity of superhydrophilic and superhydrophobic copper surfaces was shown, with respect to both the collection strain PA103 and polyresistant clinical isolates of P. aeruginosa, and the evolution of the decontamination of a bacterial suspension is presented and discussed. The presented results indicate the promising potential of the exploitation of superhydrophilic coatings in the manufacture of contact surfaces for healthcare units, where the risk of infection spread and contamination by hospital-acquired pathogens is extremely high.
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Affiliation(s)
- Natalia E. Bondareva
- Department of Medical Microbiology, Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 18 Gamaleya St., 123098 Moscow, Russia; (N.E.B.); (A.B.S.); (E.Y.M.); (I.R.K.); (A.S.P.); (M.Y.C.)
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119071 Moscow, Russia; (F.S.O.); (A.M.E.)
| | - Anna B. Sheremet
- Department of Medical Microbiology, Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 18 Gamaleya St., 123098 Moscow, Russia; (N.E.B.); (A.B.S.); (E.Y.M.); (I.R.K.); (A.S.P.); (M.Y.C.)
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119071 Moscow, Russia; (F.S.O.); (A.M.E.)
| | - Elena Y. Morgunova
- Department of Medical Microbiology, Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 18 Gamaleya St., 123098 Moscow, Russia; (N.E.B.); (A.B.S.); (E.Y.M.); (I.R.K.); (A.S.P.); (M.Y.C.)
| | - Irina R. Khisaeva
- Department of Medical Microbiology, Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 18 Gamaleya St., 123098 Moscow, Russia; (N.E.B.); (A.B.S.); (E.Y.M.); (I.R.K.); (A.S.P.); (M.Y.C.)
| | - Alisa S. Parfenova
- Department of Medical Microbiology, Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 18 Gamaleya St., 123098 Moscow, Russia; (N.E.B.); (A.B.S.); (E.Y.M.); (I.R.K.); (A.S.P.); (M.Y.C.)
| | - Marina Y. Chernukha
- Department of Medical Microbiology, Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 18 Gamaleya St., 123098 Moscow, Russia; (N.E.B.); (A.B.S.); (E.Y.M.); (I.R.K.); (A.S.P.); (M.Y.C.)
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119071 Moscow, Russia; (F.S.O.); (A.M.E.)
| | - Fadi S. Omran
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119071 Moscow, Russia; (F.S.O.); (A.M.E.)
| | - Alexandre M. Emelyanenko
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119071 Moscow, Russia; (F.S.O.); (A.M.E.)
| | - Ludmila B. Boinovich
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119071 Moscow, Russia; (F.S.O.); (A.M.E.)
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21
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Wainwright M. Photosensitised versus conventional infection control: the local fight continues. Photochem Photobiol Sci 2024; 23:23-29. [PMID: 38095821 DOI: 10.1007/s43630-023-00503-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/04/2023] [Indexed: 02/02/2024]
Abstract
The worsening problem of antimicrobial drug resistance requires a nuanced approach. Since the conventional drug pipeline is unlikely to be sufficient to avoid massive increases in mortality by the mid-twenty-first century, other methods of antisepsis will be required. These might be used either in place of (allowing conservation) or together with conventional agents. Of such approaches, locally applied protocols involving photo-antimicrobials suggest themselves, particularly as early intervention, e.g. in bacterial tonsillitis, would be curative without recourse to conventional drugs, and would thus prevent the development of more serious diseases such as pneumonia or meningitis. However, given the pharmaceutical industry's lack of investment in such approaches, support would be required from other areas of bioscience, such as the biomed or biotech sectors.
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22
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Charles MK, Williams TC, Nakhaie D, Woznow T, Velapatino B, Lorenzo-Leal AC, Bach H, Bryce EA, Asselin E. In vitro assessment of antibacterial and antiviral activity of three copper products after 200 rounds of simulated use. Biometals 2023:10.1007/s10534-023-00572-z. [PMID: 38133868 DOI: 10.1007/s10534-023-00572-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Copper has well-documented antibacterial effects but few have evaluated it after prolonged use and against bacteria and viruses. Coupons from three copper formulations (solid, thermal coating, and decal applications) and carbon steel controls were subjected to 200 rounds simulated cleaning using a Wiperator™ and either an accelerated hydrogen peroxide, quaternary ammonium, or artificial sweat products. Antibacterial activity against S. aureus and P. aeruginosa was then evaluated using a modified Environmental Protection Agency protocol. Antiviral activity against coronavirus (229E) and norovirus (MNV-1) surrogates was assessed using the TCID50 method. Results were compared to untreated control coupons. One hour after inoculation, S. aureus exhibited a difference in log kill of 1.16 to 4.87 and P. aeruginosa a log kill difference of 3.39-5.23 (dependent upon copper product and disinfectant) compared to carbon steel. MNV-1 demonstrated an 87-99% reduction on each copper surfaces at 1 h and 99% reduction at 2 h compared to carbon steel. Similarly, coronavirus 229E exhibited a 97-99% reduction after 1 h and 90-99% after 2 h. Simulated use with artificial sweat did not hinder the antiviral nor the antibacterial activity of Cu surfaces. Self-sanitizing copper surfaces maintained antibacterial and antiviral activity after 200 rounds of simulated cleaning.
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Affiliation(s)
- Marthe K Charles
- Division of Medical Microbiology and Infection Prevention and Control, Vancouver Coastal Health, Vancouver, BC, Canada.
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.
- , Vancouver, Canada.
| | - Teresa C Williams
- Division of Medical Microbiology and Infection Prevention and Control, Vancouver Coastal Health, Vancouver, BC, Canada
| | - Davood Nakhaie
- Department of Materials Engineering, University of British Columbia, Vancouver, BC, Canada
| | - Tracey Woznow
- Division of Medical Microbiology and Infection Prevention and Control, Vancouver Coastal Health, Vancouver, BC, Canada
| | - Billie Velapatino
- Division of Medical Microbiology and Infection Prevention and Control, Vancouver Coastal Health, Vancouver, BC, Canada
| | - Ana C Lorenzo-Leal
- Division of Infectious Diseases, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Horacio Bach
- Division of Infectious Diseases, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Elizabeth A Bryce
- Division of Medical Microbiology and Infection Prevention and Control, Vancouver Coastal Health, Vancouver, BC, Canada
| | - Edouard Asselin
- Department of Materials Engineering, University of British Columbia, Vancouver, BC, Canada
- , Vancouver, Canada
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23
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Balewski Ł, Plech T, Korona-Głowniak I, Hering A, Szczesio M, Olczak A, Bednarski PJ, Kokoszka J, Kornicka A. Copper(II) Complexes with 1-(Isoquinolin-3-yl)heteroalkyl-2-ones: Synthesis, Structure and Evaluation of Anticancer, Antimicrobial and Antioxidant Potential. Int J Mol Sci 2023; 25:8. [PMID: 38203181 PMCID: PMC10779222 DOI: 10.3390/ijms25010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024] Open
Abstract
Four copper(II) complexes, C1-4, derived from 1-(isoquinolin-3-yl)heteroalkyl-2-one ligands L1-4 were synthesized and characterized using an elemental analysis, IR spectroscopic data as well as single crystal X-ray diffraction data for complex C1. The stability of complexes C1-4 under conditions mimicking the physiological environment was estimated using UV-Vis spectrophotometry. The antiproliferative activity of both ligands L1-4 and copper(II) compounds C1-4 were evaluated using an MTT assay on four human cancer cell lines, A375 (melanoma), HepG2 (hepatoma), LS-180 (colon cancer) and T98G (glioblastoma), and a non-cancerous cell line, CCD-1059Sk (human normal skin fibroblasts). Complexes C1-4 showed greater potency against HepG2, LS180 and T98G cancer cell lines than etoposide (IC50 = 5.04-14.89 μg/mL vs. IC50 = 43.21->100 μg/mL), while free ligands L1-4 remained inactive in all cell lines. The prominent copper(II) compound C2 appeared to be more selective towards cancer cells compared with normal cells than compounds C1, C3 and C4. The treatment of HepG2 and T98G cells with complex C2 resulted in sub-G1 and G2/M cell cycle arrest, respectively, which was accompanied by DNA degradation. Moreover, the non-cytotoxic doses of C2 synergistically enhanced the cytotoxic effects of chemotherapeutic drugs, including etoposide, 5-fluorouracil and temozolomide, in HepG2 and T98G cells. The antimicrobial activities of ligands L2-4 and their copper(II) complexes C2-4 were evaluated using different types of Gram-positive bacteria, Gram-negative bacteria and yeast species. No correlation was found between the results of the antiproliferative and antimicrobial experiments. The antioxidant activities of all compounds were determined using the DPPH and ABTS radical scavenging methods. Antiradical tests revealed that among the investigated compounds, copper(II) complex C4 possessed the strongest antioxidant properties. Finally, the ADME technique was used to determine the physicochemical and drug-likeness properties of the obtained complexes.
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Affiliation(s)
- Łukasz Balewski
- Department of Chemical Technology of Drugs, Faculty of Pharmacy, Medical University of Gdansk, Gen. J. Hallera 107, 80-416 Gdańsk, Poland; (Ł.B.); (J.K.)
| | - Tomasz Plech
- Department of Pharmacology, Medical University of Lublin, Radziwiłłowska 11, 20-080 Lublin, Poland;
| | - Izabela Korona-Głowniak
- Department of Pharmaceutical Microbiology, Medical University of Lublin, Chodźki 1, 20-093 Lublin, Poland;
| | - Anna Hering
- Department of Biology and Pharmaceutical Botany, Faculty of Pharmacy, Medical University of Gdansk, Gen. J. Hallera 107, 80-416 Gdańsk, Poland;
| | - Małgorzata Szczesio
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland; (M.S.); (A.O.)
| | - Andrzej Olczak
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland; (M.S.); (A.O.)
| | - Patrick J. Bednarski
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald, F.-L. Jahn Strasse 17, D-17489 Greifswald, Germany;
| | - Jakub Kokoszka
- Department of Chemical Technology of Drugs, Faculty of Pharmacy, Medical University of Gdansk, Gen. J. Hallera 107, 80-416 Gdańsk, Poland; (Ł.B.); (J.K.)
| | - Anita Kornicka
- Department of Chemical Technology of Drugs, Faculty of Pharmacy, Medical University of Gdansk, Gen. J. Hallera 107, 80-416 Gdańsk, Poland; (Ł.B.); (J.K.)
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24
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Behzadinasab S, Williams MD, Falkinham Iii JO, Ducker WA. Antimicrobial mechanism of cuprous oxide (Cu 2O) coatings. J Colloid Interface Sci 2023; 652:1867-1877. [PMID: 37688933 DOI: 10.1016/j.jcis.2023.08.136] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 09/11/2023]
Abstract
Some very effective antimicrobial coatings exploit copper or cuprous oxide (Cu2O) as the active agent. The aim of this study is to determine which species is the active antimicrobial - dissolved ions, the Cu2O solid, or reactive oxygen species. Copper ions were leached from Cu2O into various solutions and the leachate tested for both dissolved copper and the efficacy in killing Pseudomonas aeruginosa. The concentration of copper species leached from Cu2O into aqueous solution varied greatly with the composition of the aqueous solution. For a range of solution buffers, killing of P. aeruginosa was highly correlated with the concentration of copper in the leachate. Further, 10 µL bacterial suspension droplets were placed on Cu2O coatings, with or without a polymer barrier layer, and tested for bacterial kill. Killing occurred without contact between bacterium and solid, demonstrating that contact with Cu2O is not necessary. We therefore conclude that soluble copper species are the antimicrobial agent, and that the most potent species is Cu+. The solid quickly raises and sustains the concentration of soluble copper species near the bacterium. Killing via soluble copper ions rather than contact should allow copper coatings to kill bacteria even when fouled, which is an important practical consideration.
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Affiliation(s)
- Saeed Behzadinasab
- Department of Chemical Engineering, Virginia Tech, Blacksburg, VA, 24061, USA; Center for Soft Matter and Biological Physics, Virginia Tech, Blacksburg, VA, 24061, USA; Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, 24061, USA.
| | - Myra D Williams
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, 24061, USA.
| | | | - William A Ducker
- Department of Chemical Engineering, Virginia Tech, Blacksburg, VA, 24061, USA; Center for Soft Matter and Biological Physics, Virginia Tech, Blacksburg, VA, 24061, USA; Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, 24061, USA.
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25
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Kashyap P, Sharma P, Gohil R, Rajpurohit D, Mishra D, Shrivastav PS. Progress in appended calix[4]arene-based receptors for selective recognition of copper ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123188. [PMID: 37515889 DOI: 10.1016/j.saa.2023.123188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/08/2023] [Accepted: 07/20/2023] [Indexed: 07/31/2023]
Abstract
In the past two decades, there has been significant progress in the design and development of synthetic receptors for molecular recognition as they find application in the field of chemical, biological, medical, and environmental sciences. Synthetic receptors based on calix systems appended with fluorogenic and chromogenic groups have gained considerable attention for sensing and recognition of ions and molecules. Copper (Cu2+) is an essential element required in trace amounts in all living organisms to carry out various biological processes. The aim of this review is to summarize advancement in π-conjugated fluorogenic and chromogenic groups appended to calix[4]arene motifs for detection and quantitation of Cu2+ ion. The focus is to present a comprehensive account of extended calix[4]arene systems with different linkers and highlight the unique design and binding characteristics for the recognition and sensing of Cu2+ ions.
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Affiliation(s)
- Priyanka Kashyap
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India
| | - Payal Sharma
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India
| | - Ritu Gohil
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India
| | - Dushyantsingh Rajpurohit
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India.
| | - Divya Mishra
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India.
| | - Pranav S Shrivastav
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad-380009, Gujarat, India.
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26
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Williams TC, Woznow T, Velapatino B, Asselin E, Nakhaie D, Bryce EA, Charles M. In vitro comparison of methods for sampling copper-based antimicrobial surfaces. Microbiol Spectr 2023; 11:e0244123. [PMID: 37847020 PMCID: PMC10714924 DOI: 10.1128/spectrum.02441-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 08/26/2023] [Indexed: 10/18/2023] Open
Abstract
IMPORTANCE Self-sanitizing surfaces such as copper (Cu) are increasingly used on high-touch surfaces to prevent the spread of harmful viruses and bacteria. Being able to monitor the antimicrobial properties of Cu is fundamental in measuring its antimicrobial efficacy. Thorough investigations into reliable methods to enumerate bacteria from self-sanitizing surfaces are lacking in the literature. This study demonstrates that direct use of Petrifilm on Cu surfaces most likely revives stressed and dying bacteria, which induces increased bacterial counts. This phenomenon was not observed with indirect collection methods. Studies assessing time-kill kinetics or long-term efficacy of Cu should consider the impact of the collection method chosen.
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Affiliation(s)
- T. C. Williams
- Division of Medical Microbiology and Infection Prevention, Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - T. Woznow
- Division of Medical Microbiology and Infection Prevention, Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - B. Velapatino
- Division of Medical Microbiology and Infection Prevention, Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - E. Asselin
- Department of Materials Engineering, University of British Columbia, Vancouver, British Columbia, Canada
| | - D. Nakhaie
- Department of Materials Engineering, University of British Columbia, Vancouver, British Columbia, Canada
| | - E. A. Bryce
- Division of Medical Microbiology and Infection Prevention, Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - M. Charles
- Division of Medical Microbiology and Infection Prevention, Vancouver Coastal Health, Vancouver, British Columbia, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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27
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Reyes-Carmona L, Sepúlveda-Robles OA, Almaguer-Flores A, Bello-Lopez JM, Ramos-Vilchis C, Rodil SE. Antimicrobial activity of silver-copper coating against aerosols containing surrogate respiratory viruses and bacteria. PLoS One 2023; 18:e0294972. [PMID: 38079398 PMCID: PMC10712891 DOI: 10.1371/journal.pone.0294972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 11/10/2023] [Indexed: 12/18/2023] Open
Abstract
The transmission of bacteria and respiratory viruses through expelled saliva microdroplets and aerosols is a significant concern for healthcare workers, further highlighted during the SARS-CoV-2 pandemic. To address this issue, the development of nanomaterials with antimicrobial properties for use as nanolayers in respiratory protection equipment, such as facemasks or respirators, has emerged as a potential solution. In this study, a silver and copper nanolayer called SakCu® was deposited on one side of a spun-bond polypropylene fabric using the magnetron sputtering technique. The antibacterial and antiviral activity of the AgCu nanolayer was evaluated against droplets falling on the material and aerosols passing through it. The effectiveness of the nanolayer was assessed by measuring viral loads of the enveloped virus SARS-CoV-2 and viability assays using respiratory surrogate viruses, including PaMx54, PaMx60, PaMx61 (ssRNA, Leviviridae), and PhiX174 (ssDNA, Microviridae) as representatives of non-enveloped viruses. Colony forming unit (CFU) determination was employed to evaluate the survival of aerobic and anaerobic bacteria. The results demonstrated a nearly exponential reduction in SARS-CoV-2 viral load, achieving complete viral load reduction after 24 hours of contact incubation with the AgCu nanolayer. Viability assays with the surrogate viruses showed a significant reduction in viral replication between 2-4 hours after contact. The simulated viral filtration system demonstrated inhibition of viral replication ranging from 39% to 64%. The viability assays with PhiX174 exhibited a 2-log reduction in viral replication after 24 hours of contact and a 16.31% inhibition in viral filtration assays. Bacterial growth inhibition varied depending on the species, with reductions ranging from 70% to 92% for aerobic bacteria and over 90% for anaerobic strains. In conclusion, the AgCu nanolayer displayed high bactericidal and antiviral activity in contact and aerosol conditions. Therefore, it holds the potential for incorporation into personal protective equipment to effectively reduce and prevent the transmission of aerosol-borne pathogenic bacteria and respiratory viruses.
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Affiliation(s)
- Lorena Reyes-Carmona
- Laboratorio de Biointerfases, DEPeI, Facultad de Odontología, Universidad Nacional Autónoma de México, CDMX, México
- Programa de Maestría y Doctorado en Ciencias Médicas Odontológicas y de la Salud, Facultad de Odontología, Universidad Nacional Autónoma de México, CDMX, México
| | - Omar A. Sepúlveda-Robles
- Unidad de Investigación Médica en Genética Humana, UMAE Hospital de Pediatría, Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social (IMSS), CDMX, México
| | - Argelia Almaguer-Flores
- Laboratorio de Biointerfases, DEPeI, Facultad de Odontología, Universidad Nacional Autónoma de México, CDMX, México
| | - Juan Manuel Bello-Lopez
- Dirección de Investigación, Hospital Juárez de México, Magdalena de las Salinas, CDMX, México
| | - Carlos Ramos-Vilchis
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, CDMX, México
| | - Sandra E. Rodil
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, CDMX, México
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28
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Raro OHF, Poirel L, Nordmann P. Effect of Zinc Oxide and Copper Sulfate on Antibiotic Resistance Plasmid Transfer in Escherichia coli. Microorganisms 2023; 11:2880. [PMID: 38138025 PMCID: PMC10745819 DOI: 10.3390/microorganisms11122880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 11/21/2023] [Accepted: 11/25/2023] [Indexed: 12/24/2023] Open
Abstract
Heavy metals such as zinc (Zn) and copper (Cu) may be associated with antibiotic resistance dissemination. Our aim was to investigate whether sub-lethal dosage of Zn and Cu may enhance plasmid transfer and subsequently resistance genes dissemination. Plasmid conjugation frequencies (PCF) were performed with Escherichia coli strains bearing IncL-blaOXA-48, IncA/C-blaCMY-2, IncI1-blaCTX-M-1, IncF-blaCTX-M-1, and IncX3-blaNDM-5 as donors. Mating-out assays were performed with sub-dosages of zinc oxide (ZnO) and Cu sulfate (CuSO4). Quantification of the SOS response-associated gene expression levels and of the production of reactive oxygen species were determined. Increased PCF was observed for IncL, IncA/C, and IncX3 when treated with ZnO. PCF was only increased for IncL when treated with CuSO4. The ROS production presented an overall positive correlation with PCF after treatment with ZnO for IncL, IncA/C, and IncX3. For CuSO4 treatment, the same was observed only for IncL. No increase was observed for expression of SOS response-associated genes under CuSO4 treatment, and under ZnO treatment, we observed an increase in SOS response-associated genes only for IncX3. Our data showed that sub-dosages of ZnO and CuSO4 could significantly enhance PCF in E. coli, with a more marked effect observed with IncL, IncA/C, and IncX3 scaffolds. Our study suggested that use of certain heavy metals is not the panacea for avoiding use of antibiotics in order to prevent the dissemination of antibiotic resistance.
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Affiliation(s)
- Otávio Hallal Ferreira Raro
- Medical and Molecular Microbiology, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 18, 1700 Fribourg, Switzerland; (O.H.F.R.); (P.N.)
| | - Laurent Poirel
- Medical and Molecular Microbiology, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 18, 1700 Fribourg, Switzerland; (O.H.F.R.); (P.N.)
- Swiss National Reference Center for Emerging Antibiotic Resistance (NARA), University of Fribourg, 1700 Fribourg, Switzerland
| | - Patrice Nordmann
- Medical and Molecular Microbiology, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 18, 1700 Fribourg, Switzerland; (O.H.F.R.); (P.N.)
- Swiss National Reference Center for Emerging Antibiotic Resistance (NARA), University of Fribourg, 1700 Fribourg, Switzerland
- Institute for Microbiology, Lausanne University Hospital and University of Lausanne, 1015 Lausanne, Switzerland
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29
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Sadiq S, Khan I, Shen Z, Wang M, Xu T, Khan S, Zhou X, Bahadur A, Rafiq M, Sohail S, Wu P. Recent Updates on Multifunctional Nanomaterials as Antipathogens in Humans and Livestock: Classification, Application, Mode of Action, and Challenges. Molecules 2023; 28:7674. [PMID: 38005395 PMCID: PMC10675011 DOI: 10.3390/molecules28227674] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/11/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Pathogens cause infections and millions of deaths globally, while antipathogens are drugs or treatments designed to combat them. To date, multifunctional nanomaterials (NMs), such as organic, inorganic, and nanocomposites, have attracted significant attention by transforming antipathogen livelihoods. They are very small in size so can quickly pass through the walls of bacterial, fungal, or parasitic cells and viral particles to perform their antipathogenic activity. They are more reactive and have a high band gap, making them more effective than traditional medications. Moreover, due to some pathogen's resistance to currently available medications, the antipathogen performance of NMs is becoming crucial. Additionally, due to their prospective properties and administration methods, NMs are eventually chosen for cutting-edge applications and therapies, including drug administration and diagnostic tools for antipathogens. Herein, NMs have significant characteristics that can facilitate identifying and eliminating pathogens in real-time. This mini-review analyzes multifunctional NMs as antimicrobial tools and investigates their mode of action. We also discussed the challenges that need to be solved for the utilization of NMs as antipathogens.
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Affiliation(s)
- Samreen Sadiq
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
| | - Iltaf Khan
- School of Environmental & Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China;
| | - Zhenyu Shen
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
| | - Mengdong Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
| | - Tao Xu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
| | - Sohail Khan
- Department of Pharmacy, University of Swabi, Khyber Pakhtunkhwa 94640, Pakistan;
| | - Xuemin Zhou
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
| | - Ali Bahadur
- College of Science, Mathematics, and Technology, Wenzhou-Kean University, Wenzhou 325060, China;
| | - Madiha Rafiq
- Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Department of Chemistry, Shantou University, Shantou 515063, China
| | - Sumreen Sohail
- Department of Information Technology, Careerera, Beltsville, MD 20705, USA;
| | - Ping Wu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
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30
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Das A, Sangavi R, Gowrishankar S, Kumar R, Sankaralingam M. Deciphering the Mechanism of MRSA Targeting Copper(II) Complexes of NN2 Pincer-Type Ligands. Inorg Chem 2023; 62:18926-18939. [PMID: 37930252 DOI: 10.1021/acs.inorgchem.3c02480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
WHO lists AMR as one of the top ten global public health issues. Therefore, constant effort is needed to develop more efficient antimicrobial drugs. As a result, earth-abundant transition-metal complexes have emerged as an excellent solution. In this regard, new aminoquinoline-based copper(II) pincer complexes 1-3 were designed, synthesized, and characterized by modern spectroscopic techniques. It is worth mentioning that, at the highest concentration (1024 μg/mL) of complexes (1-3), the hemolysis was found to be <15%, implying their less toxicity. Further, the complexes effectively interfered with the growth of Gram positive MRSA and the fungus Candida albicans. Among them, complex 2 was promising (MIC = 16 μg/mL) against MRSA, which was better than the known antibacterial drug kanamycin (64 μg/mL) under identical conditions. The Alamar blue cell viability test and the MBC/MFC identified by spot assay were in accordance with MIC values. Moreover, the insilico studies explained the most probable mechanism of action as inhibition of cell wall biosynthesis and dysfunction of antibiotic sensing proteins. Similarly, the antifungal action might be due to the cell surface adhesion protein dysfunction by the complexes. Furthermore, we are expecting to draw these compounds for clinical applications.
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Affiliation(s)
- Athulya Das
- Bioinspired & Biomimetic Inorganic Chemistry Laboratory, Department of Chemistry, National Institute of Technology Calicut, Kozhikode 673601, Kerala, India
| | - Ravichellam Sangavi
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630 003, India
| | | | - Rajesh Kumar
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Muniyandi Sankaralingam
- Bioinspired & Biomimetic Inorganic Chemistry Laboratory, Department of Chemistry, National Institute of Technology Calicut, Kozhikode 673601, Kerala, India
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31
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Restivo E, Pugliese D, Gallichi-Nottiani D, Sammartino JC, Bloise N, Peluso E, Percivalle E, Janner D, Milanese D, Visai L. Effect of Low Copper Doping on the Optical, Cytocompatible, Antibacterial, and SARS-CoV-2 Trapping Properties of Calcium Phosphate Glasses. ACS OMEGA 2023; 8:42264-42274. [PMID: 38024754 PMCID: PMC10652837 DOI: 10.1021/acsomega.3c04293] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 10/04/2023] [Indexed: 12/01/2023]
Abstract
Calcium phosphate glasses (CPGs) are acquiring great importance in the biomedical field because of their thermomechanical and bioresorbable properties. In this study, optically transparent copper (1 mol %)-doped calcium phosphate glasses (CPGs_Cu) were prepared through the melt-quenching method, and their biocompatibility and antibacterial and antiviral properties were evaluated and compared with undoped CPGs. Biocompatibility was evaluated on murine fibroblast NIH-3T3 cells as a preliminary study of cytocompatibility. The in vitro tests were performed through indirect and direct cytotoxicity analyses by MTT and Alamar Blue assays and supported by electron microscopy observations. Microbiological analyses were performed against the most common Gram-negative and Gram-positive pathogens that cause nosocomial infections: Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Staphylococcus aureus, and the methicillin-resistant Staphylococcus aureus strain. In addition, the bioglass samples were exposed to SARS-CoV-2 to assess their effects on viral survival. The obtained results assessed the biocompatibility of both bioglass types and their ability to reduce the viral load and trap the virus. In addition, Cu2+-doped bioglass was found to be antibacterial despite its low content (1 mol %) of copper, making this a promising candidate material for biomedical applications, e.g., surgery probes, drug delivery, and photodynamic therapy.
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Affiliation(s)
- Elisa Restivo
- Department
of Molecular Medicine, Center for Health Technologies, UdR INSTM, University of Pavia, Pavia27100,Italy
| | - Diego Pugliese
- Department
of Applied Science and Technology, UdR INSTM, Politecnico di Torino, Torino10129,Italy
| | | | - José Camilla Sammartino
- Department
of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia27100,Italy
| | - Nora Bloise
- Department
of Molecular Medicine, Center for Health Technologies, UdR INSTM, University of Pavia, Pavia27100,Italy
- Medicina
Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, Pavia27100,Italy
| | - Emanuela Peluso
- Department
of Molecular Medicine, Center for Health Technologies, UdR INSTM, University of Pavia, Pavia27100,Italy
| | - Elena Percivalle
- Molecular
Virology Unit, Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia27100,Italy
| | - Davide Janner
- Department
of Applied Science and Technology, UdR INSTM, Politecnico di Torino, Torino10129,Italy
| | - Daniel Milanese
- Department
of Engineering and Architecture, UdR INSTM, University of Parma, Parma43121,Italy
| | - Livia Visai
- Department
of Molecular Medicine, Center for Health Technologies, UdR INSTM, University of Pavia, Pavia27100,Italy
- Medicina
Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, Pavia27100,Italy
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32
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Li Y, Chen M, Liu H, Zhang D, Shi QS, Xie XB, Guo Y. Antimicrobial Peptide-Inspired Design of Amino-Modified Lignin with Improved Antimicrobial Activities. Biomacromolecules 2023; 24:5381-5393. [PMID: 37908117 DOI: 10.1021/acs.biomac.3c00841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
A major challenge to make use of lignin as an antimicrobial material is the weak antimicrobial activity of industrial lignin. Inspired by the antimicrobial mechanism of actions of antimicrobial peptides, alkyldiamines were employed as lysine mimics for lignin modifications. Accordingly, aminoalkyl-modified lignins with different degrees of substitution of amino groups and different hydrophobicity were synthesized. The chemical structure, properties, and antimicrobial activities of the as-prepared aminoalkyl lignins were thoroughly characterized with state-of-the-art technologies. The results indicated that aminobutyl lignin showed enhanced antimicrobial activity against S. aureus and E. coli and performed even better than copper ions. The antimicrobial mechanism of action of the as-prepared aminobutyl lignin was similar to that of polylysine, which damaged the cell membrane, leading to the leakage of intracellular molecules and death of the cell. This study provides a feasible approach to afford modified lignin with enhanced antimicrobial performance, which would facilitate the high-value valorization of lignin as biological materials.
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Affiliation(s)
- Yan Li
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, People's Republic of China
| | - Mingjie Chen
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, People's Republic of China
| | - Huiming Liu
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, People's Republic of China
| | - Dandan Zhang
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, People's Republic of China
| | - Qing-Shan Shi
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, People's Republic of China
| | - Xiao-Bao Xie
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, People's Republic of China
| | - Yanzhu Guo
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
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33
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Toader G, Diacon A, Rusen E, Mangalagiu II, Alexandru M, Zorilă FL, Mocanu A, Boldeiu A, Gavrilă AM, Trică B, Pulpea D, Necolau MI, Istrate M. Peelable Alginate Films Reinforced by Carbon Nanofibers Decorated with Antimicrobial Nanoparticles for Immediate Biological Decontamination of Surfaces. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2775. [PMID: 37887926 PMCID: PMC10609245 DOI: 10.3390/nano13202775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/13/2023] [Accepted: 10/13/2023] [Indexed: 10/28/2023]
Abstract
This study presents the synthesis and characterization of alginate-based nanocomposite peelable films, reinforced by carbon nanofibers (CNFs) decorated with nanoparticles that possess remarkable antimicrobial properties. These materials are suitable for immediate decontamination applications, being designed as fluid formulations that can be applied on contaminated surfaces, and subsequently, they can rapidly form a peelable film via divalent ion crosslinking and can be easily peeled and disposed of. Silver, copper, and zinc oxide nanoparticles (NPs) were synthesized using superficial oxidized carbon nanofibers (CNF-ox) as support. To obtain the decontaminating formulations, sodium alginate (ALG) was further incorporated into the colloidal solutions containing the antimicrobial nanoparticles. The properties of the initial CNF-ox-NP-ALG solutions and the resulting peelable nanocomposite hydrogels (obtained by crosslinking with zinc acetate) were assessed by rheological measurements, and mechanical investigations, respectively. The evaluation of Minimal Inhibitory Concentration (MIC) and Minimal Bactericidal Concentration (MBC) for the synthesized nanoparticles (silver, copper, and zinc oxide) was performed. The best values for MIC and MBC were obtained for CNF-ox decorated with AgNPs for both types of bacterial strains: Gram-negative (MIC and MBC values (mg/L): E. coli-3 and 108; P. aeruginosa-3 and 54) and Gram-positive (MIC and MBC values (mg/L): S. aureus-13 and 27). The film-forming decontaminating formulations were also subjected to a microbiology assay consisting of the time-kill test, MIC and MBC estimations, and evaluation of the efficacity of peelable coatings in removing the biological agents from the contaminated surfaces. The best decontamination efficiencies against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa varied between 97.40% and 99.95% when employing silver-decorated CNF-ox in the decontaminating formulations. These results reveal an enhanced antimicrobial activity brought about by the synergistic effect of silver and CNF-ox, coupled with an efficient incorporation of the contaminants inside the peelable films.
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Affiliation(s)
- Gabriela Toader
- Military Technical Academy “Ferdinand I”, 39-49 G. Cosbuc Blvd., 050141 Bucharest, Romania; (G.T.); (A.D.); (D.P.)
| | - Aurel Diacon
- Military Technical Academy “Ferdinand I”, 39-49 G. Cosbuc Blvd., 050141 Bucharest, Romania; (G.T.); (A.D.); (D.P.)
- Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania; (A.M.); (M.I.N.)
| | - Edina Rusen
- Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania; (A.M.); (M.I.N.)
| | - Ionel I. Mangalagiu
- Faculty of Chemistry, Alexandru Ioan Cuza University of Iasi, 11 Carol 1st Blvd., 700506 Iasi, Romania
| | - Mioara Alexandru
- Microbiology Laboratory, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 30 Reactorului St., 077125 Bucharest, Romania; (M.A.); (F.L.Z.)
| | - Florina Lucica Zorilă
- Microbiology Laboratory, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 30 Reactorului St., 077125 Bucharest, Romania; (M.A.); (F.L.Z.)
- Department of Genetics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Indepententei, 050095 Bucharest, Romania
| | - Alexandra Mocanu
- Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania; (A.M.); (M.I.N.)
- National Institute for Research and Development in Microtechnologies—IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Bucharest, Romania;
| | - Adina Boldeiu
- National Institute for Research and Development in Microtechnologies—IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Bucharest, Romania;
| | - Ana Mihaela Gavrilă
- National Institute of Research and Development for Chemistry and Petrochemistry, 202 Splaiul Independentei, 060041 Bucharest, Romania; (A.M.G.); (B.T.)
| | - Bogdan Trică
- National Institute of Research and Development for Chemistry and Petrochemistry, 202 Splaiul Independentei, 060041 Bucharest, Romania; (A.M.G.); (B.T.)
| | - Daniela Pulpea
- Military Technical Academy “Ferdinand I”, 39-49 G. Cosbuc Blvd., 050141 Bucharest, Romania; (G.T.); (A.D.); (D.P.)
| | - Mădălina Ioana Necolau
- Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania; (A.M.); (M.I.N.)
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| | - Marcel Istrate
- S.C. Stimpex S.A., 46-48 Nicolae Teclu Street, 032368 Bucharest, Romania;
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34
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Fachini LG, Baptistella GB, Postal K, Santana FS, de Souza EM, Ribeiro RR, Nunes GG, Sá EL. A new approach to study semi-coordination using two 2-methyl-5-nitroimidazole copper(ii) complexes of biological interest as a model system. RSC Adv 2023; 13:27997-28007. [PMID: 37736565 PMCID: PMC10510761 DOI: 10.1039/d3ra02130k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/21/2023] [Indexed: 09/23/2023] Open
Abstract
Two novel copper(ii) complexes [Cu(2mni)2(H2O)2](NO3)2·2H2O (1) and [Cu(2mni)2(NO3)2] (2), where 2mni is 2-methyl-5-nitroimidazole, were prepared and characterized in the solid state using single-crystal and powder X-ray diffraction analyses, EPR, electronic and vibrational spectroscopies (FTIR and Raman), and thermogravimetric methods. Both products present an elongated distorted octahedral geometry with axial Cu-O bond lengths of 2.606(14) and 2.593(15) Å, indicating semi-coordination. Density functional theory (DFT) calculations at the B3LYP/LANL2DZ theory level were used to study the electronic properties of 1 and 2. The Independent Gradient Model (IGM) was employed to determine the Intrinsic Bond Strength Index (IBSI) of the semi-coordination and to plot δg isosurfaces for the electronic sharing between the metal center and ligands. A moderate to weak antibacterial activity against Escherichia coli cultures was found for 1 with a 50% growth inhibition (GI50) value of 0.25 mmol L-1. To the best of our knowledge, this is the first time that the semi-coordination analysis using IGM was carried out for a copper(ii) complex with axial elongation, finding a good correlation between the bond length and the IBSI, and the study was extended for a series of analogous complexes described in the literature.
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Affiliation(s)
- Lucas G Fachini
- Departamento de Química, UFPR Curitiba PR Brazil +55 41 3361 3300
| | | | - Kahoana Postal
- Departamento de Química, UFPR Curitiba PR Brazil +55 41 3361 3300
| | | | - Emanuel M de Souza
- Departamento de Bioquímica e Biologia Molecular, UFPR Curitiba PR Brazil
| | - Ronny R Ribeiro
- Departamento de Química, UFPR Curitiba PR Brazil +55 41 3361 3300
| | - Giovana G Nunes
- Departamento de Química, UFPR Curitiba PR Brazil +55 41 3361 3300
| | - Eduardo L Sá
- Departamento de Química, UFPR Curitiba PR Brazil +55 41 3361 3300
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35
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Giráldez A, Fdez-Sanromán A, Terrón D, Sanromán MA, Pazos M. Nanostructured copper-organic frameworks for the generation of sulphate radicals: application in wastewater disinfection. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-29394-9. [PMID: 37670094 DOI: 10.1007/s11356-023-29394-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 08/15/2023] [Indexed: 09/07/2023]
Abstract
In recent years, the presence of pathogens in the environment has become an issue of widespread concern in society. Thus, new research lines have been developed regarding the removal of pathogens and persistent pollutants in water. In this research, the efficacy of nanostructure copper-organic framework, HKUST-1, has been evaluated for its ability to eliminate Escherichia coli and generate sulphate radicals as catalyst for the treatment of effluents with a high microbiological load via peroxymonosulphate (PMS) activation. The disinfection process has been optimized, achieving complete elimination of Escherichia coli growth after 30 min of testing using a concentration of 60.5 mg/L HKUST-1 and 0.1 mM of PMS. To overcome the operational limitations of this system and facilitate its handling and reutilization in a flow disinfection process, HKUST-1 has been efficiently encapsulated on polyacrylonitrile as a novel development that could be scaled up to achieve continuous treatment.
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Affiliation(s)
- Alba Giráldez
- Department of Chemical Engineering, CINTECX, Universidade de Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain
| | - Antía Fdez-Sanromán
- Department of Chemical Engineering, CINTECX, Universidade de Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain
| | - Daniel Terrón
- Department of Chemical Engineering, CINTECX, Universidade de Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain
| | - M Angeles Sanromán
- Department of Chemical Engineering, CINTECX, Universidade de Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain
| | - Marta Pazos
- Department of Chemical Engineering, CINTECX, Universidade de Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain.
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36
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Pradhan R, Tiwari L, Groner VM, Leach C, Lusk K, Harrison NS, Cornell KA, Waynant KV. Evaluation of azothioformamides and their copper(I) and silver(I) complexes for biological activity. J Inorg Biochem 2023; 246:112294. [PMID: 37356379 PMCID: PMC10681367 DOI: 10.1016/j.jinorgbio.2023.112294] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 06/27/2023]
Abstract
Redox-active azothioformamides (ATFs) contain an NNCS 1,3-heterodiene motif typically found in other molecular subclasses that exhibit a wide range of cytotoxic and anti-neoplastic effects, either alone or as chelation complexes with various metals. For this study, a small library of ATF compounds was synthesized and tested across a range of microbes, fungi, and cancer cell lines for biological activity, both alone and as metal chelates of copper(I) and silver(I) salts. Alone, the ATF compounds exhibited little antimicrobial activity, but all inhibited the cell growth of A549 lung carcinoma cells (IC50 values of 1-6 μM). As copper(I) and silver(I) coordination complexes, several of the ATFs showed antimicrobial activity against gram positive Staphylococcus aureus and Bacillus subtilis cells (IC50 ∼ 5-20 μM) and the fungi Candida albicans (IC50 ∼ 8-12 μM); as well as cytotoxicity against both lung carcinoma A549 cells and lymphoblastic leukemia K562 cells.
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Affiliation(s)
- Rabina Pradhan
- Department of Chemistry, University of Idaho, Moscow, ID 83844, USA
| | - Laxmi Tiwari
- Department of Chemistry, University of Idaho, Moscow, ID 83844, USA
| | - Vincent M Groner
- Department of Chemistry, University of Idaho, Moscow, ID 83844, USA
| | - Caleb Leach
- Department of Chemistry & Biochemistry, Boise State University, Boise, ID 83725, USA
| | - Kyle Lusk
- Department of Chemistry & Biochemistry, Boise State University, Boise, ID 83725, USA
| | - Nathan S Harrison
- Department of Chemistry & Biochemistry, Boise State University, Boise, ID 83725, USA
| | - Kenneth A Cornell
- Department of Chemistry & Biochemistry, Boise State University, Boise, ID 83725, USA.
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37
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Egusa M, Watanabe S, Li H, Zewude DA, Ifuku S, Kaminaka H. Production of copper nanoparticle-immobilized chitin nanofibers and their role in plant disease control. JOURNAL OF PESTICIDE SCIENCE 2023; 48:86-92. [PMID: 37745172 PMCID: PMC10513960 DOI: 10.1584/jpestics.d23-001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 05/25/2023] [Indexed: 09/26/2023]
Abstract
Chitin is used in agriculture to improve crop production; however, its use is limited due to difficulties in its handling. A chitin nanofiber (CNF) overcomes this issue and, due to its elicitor activity, has great potential for crop protection. To expand CNF utilization, a copper nanoparticles-based antimicrobic CNF (CuNPs/CNF) was prepared using a chemical reduction method. The formation of CuNPs was confirmed via scanning electron microscopy. Thermogravimetric analysis revealed that the amount of CuNPs on the CNF was dose-dependent on the precursor salt, copper acetate. CuNPs endowed the CNF with strong antimicrobial activity against Alternaria brassicicola and Pectobacterium carotovorum. Moreover, the CuNPs/CNF reduced pathogen infection in cabbage. The antimicrobial activity and disease prevention of the CuNPs/CNF was increased compared to the corresponding CNF or commercial agrochemical Bordeaux treatment. These results indicate that CuNPs conferred antimicrobial activity on the CNF and increased the efficacy of plant disease protection.
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Affiliation(s)
| | | | - Hujun Li
- Department of Engineering, Graduate School of Sustainability Science, Tottori University
| | - Dagmawi Abebe Zewude
- Department of Engineering, Graduate School of Sustainability Science, Tottori University
- Unused Bioresource Utilization Center, Tottori University
| | - Shinsuke Ifuku
- Department of Engineering, Graduate School of Sustainability Science, Tottori University
- Center for Research on Green Sustainable Chemistry, Tottori University
- Unused Bioresource Utilization Center, Tottori University
| | - Hironori Kaminaka
- Faculty of Agriculture, Tottori University
- Unused Bioresource Utilization Center, Tottori University
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38
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Al Kayal T, Giuntoli G, Cavallo A, Pisani A, Mazzetti P, Fonnesu R, Rosellini A, Pistello M, D’Acunto M, Soldani G, Losi P. Incorporation of Copper Nanoparticles on Electrospun Polyurethane Membrane Fibers by a Spray Method. Molecules 2023; 28:5981. [PMID: 37630233 PMCID: PMC10458218 DOI: 10.3390/molecules28165981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/25/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Electrospinning is an easy and versatile technique to obtain nanofibrous membranes with nanosized fibers, high porosity, and pore interconnectivity. Metal nanoparticles (e.g., Ag, Cu, ZnO) exhibit excellent biocide properties due to their size, shape, release of metal ions, or reactive oxygen species production, and thus are often used as antimicrobial agents. In this study, a combined electrospinning/spray technique was employed to fabricate electrospun polyurethane membranes loaded with copper nanoparticles at different surface densities (10, 20, 25, or 30 μg/cm2). This method allows particle deposition onto the surface of the membranes without the use of chemical agents. SEM images showed that polyurethane fibers own homogeneous thickness (around 650 nm), and that spray-deposited copper nanoparticles are evenly distributed. STEM-EDX demonstrated that copper nanoparticles are deposited onto the surface of the fibers and are not covered by polyurethane. Moreover, a uniaxial rupture test showed that particles are firmly anchored to the electrospun fibers. Antibacterial tests against model microorganisms Escherichia coli indicated that the prepared electrospun membranes possess good bactericidal effect. Finally, the antiviral activity against SARS-CoV-2 was about 90% after 1 h of direct contact. The obtained results suggested that the electrospun membranes possess antimicrobial activities and can be used in medical and industrial applications.
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Affiliation(s)
- Tamer Al Kayal
- Institute of Clinical Physiology, National Research Council, 54100 Massa, Italy; (G.G.); (A.C.); (A.P.); (G.S.); (P.L.)
| | - Giulia Giuntoli
- Institute of Clinical Physiology, National Research Council, 54100 Massa, Italy; (G.G.); (A.C.); (A.P.); (G.S.); (P.L.)
| | - Aida Cavallo
- Institute of Clinical Physiology, National Research Council, 54100 Massa, Italy; (G.G.); (A.C.); (A.P.); (G.S.); (P.L.)
| | - Anissa Pisani
- Institute of Clinical Physiology, National Research Council, 54100 Massa, Italy; (G.G.); (A.C.); (A.P.); (G.S.); (P.L.)
| | - Paola Mazzetti
- Virology Unit, Pisa University Hospital, 56124 Pisa, Italy; (P.M.); (R.F.); (A.R.); (M.P.)
- Retrovirus Center, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56124 Pisa, Italy
| | - Rossella Fonnesu
- Virology Unit, Pisa University Hospital, 56124 Pisa, Italy; (P.M.); (R.F.); (A.R.); (M.P.)
- Retrovirus Center, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56124 Pisa, Italy
| | - Alfredo Rosellini
- Virology Unit, Pisa University Hospital, 56124 Pisa, Italy; (P.M.); (R.F.); (A.R.); (M.P.)
- Retrovirus Center, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56124 Pisa, Italy
| | - Mauro Pistello
- Virology Unit, Pisa University Hospital, 56124 Pisa, Italy; (P.M.); (R.F.); (A.R.); (M.P.)
- Retrovirus Center, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56124 Pisa, Italy
| | - Mario D’Acunto
- Institute of Biophysics, National Research Council, 56124 Pisa, Italy;
| | - Giorgio Soldani
- Institute of Clinical Physiology, National Research Council, 54100 Massa, Italy; (G.G.); (A.C.); (A.P.); (G.S.); (P.L.)
| | - Paola Losi
- Institute of Clinical Physiology, National Research Council, 54100 Massa, Italy; (G.G.); (A.C.); (A.P.); (G.S.); (P.L.)
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Popova AD, Sheveyko AN, Kuptsov KA, Advakhova DY, Karyagina AS, Gromov AV, Krivozubov MS, Orlova PA, Volkov AV, Slukin PV, Ignatov SG, Shubina IZ, Ilnitskaya AS, Gloushankova NA, Timoshenko RV, Erofeev AS, Shtansky DV. Osteoconductive, Osteogenic, and Antipathogenic Plasma Electrolytic Oxidation Coatings on Titanium Implants with BMP-2. ACS APPLIED MATERIALS & INTERFACES 2023; 15:37274-37289. [PMID: 37499236 DOI: 10.1021/acsami.3c08954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
We report a one-pot plasma electrolytic oxidation (PEO) strategy for forming a multi-element oxide layer on the titanium surface using complex electrolytes containing Na2HPO4, Ca(OH)2, (NH2)2CO, Na2SiO3, CuSO4, and KOH compounds. For even better bone implant ingrowth, PEO coatings were additionally loaded with bone morphogenetic protein-2 (BMP-2). The samples were tested in vivo in a mouse craniotomy model. Tests for bactericidal and fungicidal activity were carried out using clinically isolated multi-drug-resistant Escherichia coli (E. coli) K261, E. coli U20, methicillin-resistant Staphylococcus aureus (S. aureus) CSA154 bacterial strains, and Neurospora crassa (N. crassa) and Candida albicans (C. albicans) D2528/20 fungi. The PEO-Cu coating effectively inactivated both Gram-positive and Gram-negative bacteria at low concentrations of Cu2+ ions: minimal bactericidal concentration for E. coli and N. crassa (99.9999%) and minimal inhibitory concentration (99.0%) for S. aureus were 5 ppm. For all studied bacterial and fungal strains, PEO-Cu coating completely prevented the formation of bacterial and fungal biofilms. PEO and PEO-Cu coatings demonstrated bone remodeling and moderate osteoconductivity in vivo, while BMP-2 significantly enhanced osteoconduction and osteogenesis. The obtained results are encouraging and indicate that Ti-based materials with PEO coatings loaded with BMP-2 can be widely used in customized medicine as implants for orthopedics and cranio-maxillofacial surgery.
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Affiliation(s)
- Anastasiya D Popova
- National University of Science and Technology "MISIS", Moscow 119049, Russia
| | | | | | - Darya Yu Advakhova
- National University of Science and Technology "MISIS", Moscow 119049, Russia
| | - Anna S Karyagina
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Gamaleya Str. 18, Moscow 123098, Russia
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie gori 1, Str. 40, Moscow 119992, Russia
- All-Russia Research Institute of Agricultural Biotechnology, Russian Academy of Sciences, 127550 Moscow, Russia
| | - Alexander V Gromov
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Gamaleya Str. 18, Moscow 123098, Russia
| | - Mikhail S Krivozubov
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Gamaleya Str. 18, Moscow 123098, Russia
| | - Polina A Orlova
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Gamaleya Str. 18, Moscow 123098, Russia
| | - Alexey V Volkov
- The Peoples Friendship University of Russia (RUDN University), Miklukho-Maklaya Str. 6, Moscow 117198, Russia
| | - Pavel V Slukin
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia, National University of Science and Technology "MISIS", Moscow 119049, Russia
| | - Sergei G Ignatov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia, National University of Science and Technology "MISIS", Moscow 119049, Russia
| | - Irina Zh Shubina
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoe Shosse 24, Moscow 115478, Russia
| | - Alla S Ilnitskaya
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoe Shosse 24, Moscow 115478, Russia
| | - Natalia A Gloushankova
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoe Shosse 24, Moscow 115478, Russia
| | - Roman V Timoshenko
- National University of Science and Technology "MISIS", Moscow 119049, Russia
| | - Alexander S Erofeev
- National University of Science and Technology "MISIS", Moscow 119049, Russia
| | - Dmitry V Shtansky
- National University of Science and Technology "MISIS", Moscow 119049, Russia
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40
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Abdelbasir SM, Rayan DA, Ismail MM. Synthesis of Cu and CuO nanoparticles from e-waste and evaluation of their antibacterial and photocatalytic properties. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:89690-89704. [PMID: 37458881 PMCID: PMC10412494 DOI: 10.1007/s11356-023-28437-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/21/2023] [Indexed: 08/11/2023]
Abstract
Waste printed circuit boards (WPCBs) contain a plethora of valuable metals, considered an attractive secondary resource. In the current research, a hydrometallurgical process combined ammonia/ammonium chloride leaching and reduction (using L-ascorbic acid) to recover copper and its oxide (CuO) as nanosized particles from WPCBs was investigated. The results of leaching indicated that 96.7% of copper could be recovered at a temperature of 35 °C for a leaching duration of 2 h with ammonium chloride and ammonia concentration of 2 mol/L at a solid:liquid ratio of 1:10 g/cm3. The synthesized particles exhibit spherical and distorted sphere morphology with average particle size of 460 nm and 50 nm for Cu and CuO NPs, respectively. The antibacterial activity of Cu, CuO, and a (1:1) blend of both (Cu/CuO) has been examined against five different bacterial and fungal strains. The highest zone of inhibition was measured as 21.2 mm for Cu NPs toward Escherichia coli and 16.7 mm for Cu/CuO blend toward Bacillus cereus bacteria. The highest zone of inhibition was measured as 13 mm and 13.8 mm for Cu/CuO blend toward Fusarium proliferatum and Penicillium verrucosum fungi. Cu/CuO blend showed notable photocatalytic activity towards Rhodamine B dye under visible light irradiation with 96% degradation rate within 120 min. Using the process developed in this study, copper and its oxide as nanoparticles can be produced from WPCBs and used for multifunctional applications.
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Affiliation(s)
- Sabah M Abdelbasir
- Central Metallurgical R&D Institute (CMRDI), P.O. Box 87, Helwan, Cairo, 11421, Egypt.
| | - Diaa A Rayan
- Central Metallurgical R&D Institute (CMRDI), P.O. Box 87, Helwan, Cairo, 11421, Egypt
- Department of Physics, Deraya University, New Minya, Minya, Egypt
| | - Mahmoud M Ismail
- Physics Department, Faculty of Science, Al-Azhar Unversity, Nasr City, Cairo, 11884, Egypt
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41
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Piecuch A, Targońska S, Rewak-Sorczyńska J, Ogórek R, Wiglusz RJ. New silicate-substituted hydroxyapatite materials doped with silver ions as potential antifungal agents. BMC Microbiol 2023; 23:193. [PMID: 37464289 PMCID: PMC10353133 DOI: 10.1186/s12866-023-02930-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/03/2023] [Indexed: 07/20/2023] Open
Abstract
BACKGROUND Hydroxyapatites (HAp) are widely used as medical preparations for e.g., bone replacement or teeth implants. Incorporation of various substrates into HAp structures could enhance its biological properties, like biocompatibility or antimicrobial effects. Silver ions possess high antibacterial and antifungal activity and its application as HAp dopant might increase its clinical value. RESULTS New silicate-substituted hydroxyapatites (HAp) doped with silver ions were synthesized via hydrothermal methods. The crystal structure of HAp was investigated by using the X-ray powder diffraction. Antifungal activity of silver ion-doped HAp (with 0.7 mol%, 1 mol% and 2 mol% of dopants) was tested against the yeast-like reference and clinical strains of Candida albicans, C. glabrata, C. tropicalis, Rhodotorula rubra, R. mucilaginosa, Cryptococcus neoformans and C. gattii. Spectrophotometric method was used to evaluate antifungal effect of HAp in SD medium. It was shown that already the lowest dopant (0.7 mol% of Ag+ ions) significantly reduced fungal growth at the concentration of 100 µg/mL. Increase in the dopant content and the concentration of HAp did not cause further growth inhibition. Moreover, there were some differences at the tolerance level to Ag+ ion-doped HAp among tested strains, suggesting strain-specific activity. CONCLUSIONS Preformed studies confirm antimicrobial potential of hydroxyapatite doped with silver. New Ag+ ion-HAp material could be, after further studies, considered as medical agent with antifungal properties which lower the risk of a surgical-related infections.
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Affiliation(s)
- Agata Piecuch
- Department of Mycology and Genetics, University of Wrocław, Przybyszewskiego 63/77, Wroclaw, 51-148, Poland.
| | - Sara Targońska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wroclaw, 50-422, Poland
| | - Justyna Rewak-Sorczyńska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wroclaw, 50-422, Poland
| | - Rafał Ogórek
- Department of Mycology and Genetics, University of Wrocław, Przybyszewskiego 63/77, Wroclaw, 51-148, Poland
| | - Rafal J Wiglusz
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wroclaw, 50-422, Poland.
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42
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Ugalde-Arbizu M, Aguilera-Correa JJ, San Sebastian E, Páez PL, Nogales E, Esteban J, Gómez-Ruiz S. Antibacterial Properties of Mesoporous Silica Nanoparticles Modified with Fluoroquinolones and Copper or Silver Species. Pharmaceuticals (Basel) 2023; 16:961. [PMID: 37513873 PMCID: PMC10386262 DOI: 10.3390/ph16070961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023] Open
Abstract
Antibiotic resistance is a global problem and bacterial biofilms contribute to its development. In this context, this study aimed to perform the synthesis and characterization of seven materials based on silica mesoporous nanoparticles functionalized with three types of fluoroquinolones, along with Cu2+ or Ag+ species to evaluate the antibacterial properties against Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, and Pseudomonas aeruginosa, including clinical and multi-drug-resistant strains of S. aureus and P. aeruginosa. In addition, in order to obtain an effective material to promote wound healing, a well-known proliferative agent, phenytoin sodium, was adsorbed onto one of the silver-functionalized materials. Furthermore, biofilm studies and the generation of reactive oxygen species (ROS) were also carried out to determine the antibacterial potential of the synthesized materials. In this sense, the Cu2+ materials showed antibacterial activity against S. aureus and E. coli, potentially due to increased ROS generation (up to 3 times), whereas the Ag+ materials exhibited a broader spectrum of activity, even inhibiting clinical strains of MRSA and P. aeruginosa. In particular, the Ag+ material with phenytoin sodium showed the ability to reduce biofilm development by up to 55% and inhibit bacterial growth in a "wound-like medium" by up to 89.33%.
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Affiliation(s)
- Maider Ugalde-Arbizu
- Departamento de Química Aplicada, Facultad de Química, Euskal Herriko Unibertsitatea (UPV/EHU), Paseo Manuel Lardizabal 3, 20018 San Sebastián, Spain
- Clinical Microbiology Department, IIS-Fundación Jiménez Diaz, UAM, Avenida Reyes Católicos 2, 28040 Madrid, Spain
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, C/Tulipán s/n, 28933 Móstoles, Spain
| | - John Jairo Aguilera-Correa
- Clinical Microbiology Department, IIS-Fundación Jiménez Diaz, UAM, Avenida Reyes Católicos 2, 28040 Madrid, Spain
- CIBERINFEC-CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, 28222 Madrid, Spain
| | - Eider San Sebastian
- Departamento de Química Aplicada, Facultad de Química, Euskal Herriko Unibertsitatea (UPV/EHU), Paseo Manuel Lardizabal 3, 20018 San Sebastián, Spain
| | - Paulina L. Páez
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Haya de la Torre y Medina Allende, Ciudad Universitaria, Córdoba X5000HUA, Argentina
| | - Estela Nogales
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, C/Tulipán s/n, 28933 Móstoles, Spain
| | - Jaime Esteban
- Clinical Microbiology Department, IIS-Fundación Jiménez Diaz, UAM, Avenida Reyes Católicos 2, 28040 Madrid, Spain
- CIBERINFEC-CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, 28222 Madrid, Spain
| | - Santiago Gómez-Ruiz
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, C/Tulipán s/n, 28933 Móstoles, Spain
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Foroutan F, Kyffin BA, Nikolaou A, Merino-Gutierrez J, Abrahams I, Kanwal N, Knowles JC, Smith AJ, Smales GJ, Carta D. Highly porous phosphate-based glasses for controlled delivery of antibacterial Cu ions prepared via sol-gel chemistry. RSC Adv 2023; 13:19662-19673. [PMID: 37396829 PMCID: PMC10308344 DOI: 10.1039/d3ra02958a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/07/2023] [Indexed: 07/04/2023] Open
Abstract
Mesoporous glasses are a promising class of bioresorbable biomaterials characterized by high surface area and extended porosity in the range of 2 to 50 nm. These peculiar properties make them ideal materials for the controlled release of therapeutic ions and molecules. Whilst mesoporous silicate-based glasses (MSG) have been widely investigated, much less work has been done on mesoporous phosphate-based glasses (MPG). In the present study, MPG in the P2O5-CaO-Na2O system, undoped and doped with 1, 3, and 5 mol% of Cu ions were synthesized via a combination of the sol-gel method and supramolecular templating. The non-ionic triblock copolymer Pluronic P123 was used as a templating agent. The porous structure was studied via a combination of Scanning Electron Microscopy (SEM), Small-Angle X-ray Scattering (SAXS), and N2 adsorption-desorption analysis at 77 K. The structure of the phosphate network was investigated via solid state 31P Magic Angle Spinning Nuclear Magnetic Resonance (31P MAS-NMR) and Fourier Transform Infrared (FTIR) spectroscopy. Degradation studies, performed in water via Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES), showed that phosphates, Ca2+, Na+ and Cu ions are released in a controlled manner over a 7 days period. The controlled release of Cu, proportional to the copper loading, imbues antibacterial properties to MPG. A significant statistical reduction of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) bacterial viability was observed over a 3 days period. E. coli appeared to be more resistant than S. aureus to the antibacterial effect of copper. This study shows that copper doped MPG have great potential as bioresorbable materials for controlled delivery of antibacterial ions.
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Affiliation(s)
- Farzad Foroutan
- School of Chemistry and Chemical Engineering, University of Surrey Guildford UK
| | - Benjamin A Kyffin
- School of Chemistry and Chemical Engineering, University of Surrey Guildford UK
| | - Athanasios Nikolaou
- School of Chemistry and Chemical Engineering, University of Surrey Guildford UK
| | | | - Isaac Abrahams
- Department of Chemistry, Queen Mary University of London Mile End Road London E1 4NS UK
| | - Nasima Kanwal
- Department of Chemistry, Queen Mary University of London Mile End Road London E1 4NS UK
| | - Jonathan C Knowles
- Division of Biomaterials and Tissue Engineering, University College London London UK
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Cheonan Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University Cheonan Republic of Korea
| | - Andrew J Smith
- Diamond Light Source Ltd, Diamond House, Harwell Science and Innovation Campus Didcot, Oxfordshire OX11 0DE UK
| | - Glen J Smales
- Bundesanstalt für Materialforschung und -prüfung (BAM) Berlin Germany
| | - Daniela Carta
- School of Chemistry and Chemical Engineering, University of Surrey Guildford UK
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Leong CY, Wahab RA, Lee SL, Ponnusamy VK, Chen YH. Current perspectives of metal-based nanomaterials as photocatalytic antimicrobial agents and their therapeutic modes of action: A review. ENVIRONMENTAL RESEARCH 2023; 227:115578. [PMID: 36848977 DOI: 10.1016/j.envres.2023.115578] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/04/2023] [Accepted: 02/24/2023] [Indexed: 05/08/2023]
Abstract
Efforts to restrict the emergence and progression of multidrug-resistant bacterial strains should heavily involve the scientific community, including government bodies, researchers, and industries, in developing new and effective photocatalytic antimicrobial agents. Such changes warrant the modernization and upscaling of materials synthesis laboratories to support and expedite the mass production of materials at the industrial scale for the benefit of humankind and the environment. Despite the massive volume of publications reporting the potential usage of different types of metal-based nanomaterials as antimicrobial agents, reviews uncovering the similarities and differences among the various products remain lacking. This review details the basic and unique properties of metal-based nanoparticles, their use as photocatalytic antimicrobial agents, and their therapeutic modes of action. It shall be noted that compared to traditional antibiotics, the mode of action of photocatalytic metal-based nanomaterials for killing microorganisms are completely different, despite displaying promising performance against antibiotic-resistant bacteria. Besides, this review uncovers the differences in the mode of actions of metal oxide nanoparticles against different types of bacteria, as well as towards viruses. Last but not least, this review comprehensively describes previous published clinical trials and medical usages involving contemporary photocatalytic antimicrobial agents.
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Affiliation(s)
- Cheng Yee Leong
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia; Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia
| | - Roswanira Abdul Wahab
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia; Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia
| | - Siew Ling Lee
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia; Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia.
| | - Vinoth Kumar Ponnusamy
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan; Research Center for Precision Environmental Medicine, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan; Department of Chemistry, College of Science, National Sun Yat-Sen University (NSYSU), Kaohsiung, 80424, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital (KMUH), Kaohsiung City, 807, Taiwan; Ph.D. Program of Aquatic Science and Technology, College of Hydrosphere Science, National Kaohsiung University of Science and Technology (NKUST), Kaohsiung City, 811, Taiwan.
| | - Yi-Hsun Chen
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
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45
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Sohn YS, Jung SK, Lee SY, Kim HT. Antibacterial Effects of a Carbon Nitride (CN) Layer Formed on Non-Woven Polypropylene Fabrics Using the Modified DC-Pulsed Sputtering Method. Polymers (Basel) 2023; 15:2641. [PMID: 37376286 DOI: 10.3390/polym15122641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/05/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023] Open
Abstract
In the present study, the surface of non-woven polypropylene (NW-PP) fabric was modified to form CN layers using a modified DC-pulsed (frequency: 60 kHz, pulse shape: square) sputtering with a roll-to-roll system. After plasma modification, structural damage in the NW-PP fabric was not observed, and the C-C/C-H bonds on the surface of the NW-PP fabric converted into C-C/C-H, C-N(CN), and C=O bonds. The CN-formed NW-PP fabrics showed strong hydrophobicity for H2O (polar liquid) and full-wetting characteristics for CH2I2 (non-polar liquid). In addition, the CN-formed NW-PP exhibited an enhanced antibacterial characteristic compared to NW-PP fabric. The reduction rate of the CN-formed NW-PP fabric was 89.0% and 91.6% for Staphylococcus aureus (ATCC 6538, Gram-positive) and Klebsiella pneumoniae (ATCC4352, Gram-negative), respectively. It was confirmed that the CN layer showed antibacterial characteristics against both Gram-positive and Gram-negative bacteria. The reason for the antibacterial effect of CN-formed NW-PP fabrics can be explained as the strong hydrophobicity due to the CH3 bond of the fabric, enhanced wetting property due to CN bonds, and antibacterial activity due to C=O bonds. Our study presents a one-step, damage-free, mass-productive, and eco-friendly method that can be applied to most weak substrates, allowing the mass production of antibacterial fabrics.
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Affiliation(s)
- Young-Soo Sohn
- Department of Biomedical Engineering, Daegu Catholic University, Gyeongsan 38439, Republic of Korea
| | | | - Sung-Youp Lee
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hong Tak Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
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46
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Mujahid M, Trendafilova N, Rosair G, Kavanagh K, Walsh M, Creaven BS, Georgieva I. Structural and Spectroscopic Study of New Copper(II) and Zinc(II) Complexes of Coumarin Oxyacetate Ligands and Determination of Their Antimicrobial Activity. Molecules 2023; 28:molecules28114560. [PMID: 37299035 DOI: 10.3390/molecules28114560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/19/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Tackling antimicrobial resistance is of increasing concern in a post-pandemic world where overuse of antibiotics has increased the threat of another pandemic caused by antimicrobial-resistant pathogens. Derivatives of coumarins, a naturally occurring bioactive compound, and its metal complexes have proven therapeutic potential as antimicrobial agents and in this study a series of copper(II) and zinc(II) complexes of coumarin oxyacetate ligands were synthesised and characterised by spectroscopic techniques (IR, 1H, 13C NMR, UV-Vis) and by X-ray crystallography for two of the zinc complexes. The experimental spectroscopic data were then interpreted on the basis of molecular structure modelling and subsequent spectra simulation using the density functional theory method to identify the coordination mode in solution for the metal ions in the complexes. Interestingly, the solid-state coordination environment of the zinc complexes is in good agreement with the simulated solution state, which has not been the case in our previous studies of these ligands when coordinated to silver(I). Previous studies had indicated excellent antimicrobial activity for Ag(I) analogues of these ligands and related copper and zinc complexes of coumarin-derived ligands, but in this study none of the complexes displayed antimicrobial activity against the clinically relevant methicillin-resistant Staphylococcus aureus (MRSA), Pseudomonas aeruginosa and Candida albicans.
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Affiliation(s)
- Muhammad Mujahid
- Centre of Applied Science for Health, TU Dublin, Tallaght, D24 FKT9 Dublin, Ireland
| | - Natasha Trendafilova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 11 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
| | - Georgina Rosair
- School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK
| | - Kevin Kavanagh
- Department of Biology, Maynooth University, W23 F2K8 Maynooth, Ireland
| | - Maureen Walsh
- Centre of Applied Science for Health, TU Dublin, Tallaght, D24 FKT9 Dublin, Ireland
| | - Bernadette S Creaven
- Centre of Applied Science for Health, TU Dublin, Tallaght, D24 FKT9 Dublin, Ireland
- School of Chemical and Pharmaceutical Sciences, TU Dublin, Central Quad, Grangegorman, D07 H6K8 Dublin, Ireland
| | - Ivelina Georgieva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 11 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
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Alasvand N, Behnamghader A, Milan PB, Simorgh S, Mobasheri A, Mozafari M. Tissue-engineered small-diameter vascular grafts containing novel copper-doped bioactive glass biomaterials to promote angiogenic activity and endothelial regeneration. Mater Today Bio 2023; 20:100647. [PMID: 37273797 PMCID: PMC10232732 DOI: 10.1016/j.mtbio.2023.100647] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 04/10/2023] [Accepted: 04/26/2023] [Indexed: 06/06/2023] Open
Abstract
Small-diameter vascular grafts frequently fail because of obstruction and infection. Despite the wide range of commercially available vascular grafts, the anatomical uniqueness of defect sites demands patient-specific designs. This study aims to increase the success rate of implantation by fabricating bilayer vascular grafts containing bioactive glasses (BGs) and modifying their composition by removing hemostatic ions to make them blood-compatible and to enhance their antibacterial and angiogenesis properties. The porous vascular graft tubes were 3D printed using polycaprolactone, polyglycerol sebacate, and the modified BGs. The polycaprolactone sheath was then wrapped around the 3D-printed layer using the electrospinning technique to prevent blood leakage. The results demonstrated that the incorporation of modified BGs into the polymeric matrix not only improved the mechanical properties of the vascular graft but also significantly enhanced its antibacterial activity against both gram-negative and gram-positive strains. In addition, no hemolysis or platelet activity was detected after incorporating modified BGs into the vascular grafts. Copper-releasing vascular grafts significantly enhanced endothelial cell proliferation, motility, and VEGF secretion. Additionally, In vivo angiogenesis (CD31 immunofluorescent staining) and gene expression experiments showed that copper-releasing vascular grafts considerably promoted the formation of new blood vessels, low-grade inflammation (decreased expression of IL-1β and TNF-α), and high-level angiogenesis (increased expression of angiogenic growth factors including VEGF, PDGF-BB, and HEBGF). These observations indicate that the use of BGs with suitable compositional modifications in vascular grafts may promote the clinical success of patient-specific vascular prostheses by accelerating tissue regeneration without any coagulation problems.
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Affiliation(s)
- Neda Alasvand
- Bioengineering Research Group, Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center (MERC), Tehran, Iran
| | - Aliasghar Behnamghader
- Bioengineering Research Group, Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center (MERC), Tehran, Iran
| | - Peiman B. Milan
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Sara Simorgh
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Mobasheri
- Research Unit of Health Sciences and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- World Health Organization Collaborating Centre for Public Health Aspects of Musculoskeletal Health and Aging, Liege, Belgium
| | - Masoud Mozafari
- Research Unit of Health Sciences and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
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Ahmed W, Al-Marzouqi AH, Nazir MH, Rizvi TA, Zaneldin E, Khan M, Aziz M. Investigating the Properties and Characterization of a Hybrid 3D Printed Antimicrobial Composite Material Using FFF Process: Innovative and Swift. Int J Mol Sci 2023; 24:ijms24108895. [PMID: 37240240 DOI: 10.3390/ijms24108895] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 04/28/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
Novel strategies and materials have gained the attention of researchers due to the current pandemic, the global market high competition, and the resistance of pathogens against conventional materials. There is a dire need to develop cost-effective, environmentally friendly, and biodegradable materials to fight against bacteria using novel approaches and composites. Fused filament fabrication (FFF), also known as fused deposition modeling (FDM), is the most effective and novel fabrication method to develop these composites due to its various advantages. Compared to metallic particles alone, composites of different metallic particles have shown excellent antimicrobial properties against common Gram-positive and Gram-negative bacteria. This study investigates the antimicrobial properties of two sets of hybrid composite materials, i.e., Cu-PLA-SS and Cu-PLA-Al, are made using copper-enriched polylactide composite, one-time printed side by-side with stainless steel/PLA composite, and second-time with aluminum/PLA composite respectively. These materials have 90 wt.% of copper, 85 wt.% of SS 17-4, 65 wt.% of Al with a density of 4.7 g/cc, 3.0 g/cc, and 1.54 g/cc, respectively, and were fabricated side by side using the fused filament fabrication (FFF) printing technique. The prepared materials were tested against Gram-positive and Gram-negative bacteria such as Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), Pseudomonas aeruginosa (P. aeruginosa), Salmonella Poona (S. Poona), and Enterococci during different time intervals (5 min, 10 min, 20 min, 1 h, 8 h, and 24 h). The results revealed that both samples showed excellent antimicrobial efficiency, and 99% reduction was observed after 10 min. Hence, three-dimensional (3D) printed polymeric composites enriched with metallic particles can be utilized for biomedical, food packaging, and tissue engineering applications. These composite materials can also provide sustainable solutions in public places and hospitals where the chances of touching surfaces are higher.
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Affiliation(s)
- Waleed Ahmed
- Engineering Requirements Unit, College of Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Ali H Al-Marzouqi
- Department of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Muhammad Hamza Nazir
- Department of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Tahir A Rizvi
- Department of Microbiology & Immunology, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Essam Zaneldin
- Department of Civil and Environmental Engineering, College of Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Mushtaq Khan
- Department of Microbiology & Immunology, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Muthanna Aziz
- Department of Mechanical Engineering, College of Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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49
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Fosca M, Streza A, Antoniac IV, Vadalà G, Rau JV. Ion-Doped Calcium Phosphate-Based Coatings with Antibacterial Properties. J Funct Biomater 2023; 14:jfb14050250. [PMID: 37233360 DOI: 10.3390/jfb14050250] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/18/2023] [Accepted: 04/25/2023] [Indexed: 05/27/2023] Open
Abstract
Ion-substituted calcium phosphate (CP) coatings have been extensively studied as promising materials for biomedical implants due to their ability to enhance biocompatibility, osteoconductivity, and bone formation. This systematic review aims to provide a comprehensive analysis of the current state of the art in ion-doped CP-based coatings for orthopaedic and dental implant applications. Specifically, this review evaluates the effects of ion addition on the physicochemical, mechanical, and biological properties of CP coatings. The review also identifies the contribution and additional effects (in a separate or a synergistic way) of different components used together with ion-doped CP for advanced composite coatings. In the final part, the effects of antibacterial coatings on specific bacteria strains are reported. The present review could be of interest to researchers, clinicians, and industry professionals involved in the development and application of CP coatings for orthopaedic and dental implants.
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Affiliation(s)
- Marco Fosca
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133 Rome, Italy
| | - Alexandru Streza
- Faculty of Material Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei Street, District 6, 060042 Bucharest, Romania
| | - Iulian V Antoniac
- Faculty of Material Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei Street, District 6, 060042 Bucharest, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei Street, District 5, 050094 Bucharest, Romania
| | - Gianluca Vadalà
- Laboratory of Regenerative Orthopaedics, Research Unit of Orthopaedic, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
- Operative Research Unit of Orthopaedics, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133 Rome, Italy
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50
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Shah IH, Manzoor MA, Sabir IA, Ashraf M, Liaquat F, Gulzar S, Chang L, Zhang Y. Phytotoxic effects of chemically synthesized copper oxide nanoparticles induce physiological, biochemical, and ultrastructural changes in Cucumis melo. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:51595-51606. [PMID: 36813939 DOI: 10.1007/s11356-023-26039-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Nanotechnology has achieved great attention due to its impressive performance especially engineered nanoparticles (ENPs). Copper-based nanoparticles offer favorable development in the fabrication of agrochemicals including fertilizers and pesticides in the field of agriculture. However, their toxic impact on melon plants (Cucumis melo) still needs to be investigated. Therefore, the aim of the current work was performed to focus on the toxic impact of Cu oxide nanoparticles (CuONPs) in hydroponically grown Cucumis melo. Our results demonstrated that CuONPs with 75, 150, and 225 mg/L significantly (P<0.005) suppressed the growth rate and badly affect physiological and biochemical activities in melon seedlings. Also, results revealed remarkable phenotypical changes besides significantly reduced fresh biomass and decreased levels of total chlorophyll contents in a dose-dependent manner. Atomic absorption spectroscopy (ASS) analysis exhibited that C. melo treated with CuONPs accumulates NPs in the shoot. Moreover, exposure to higher CuONPs (75-225mg/L) significantly increased the reactive oxygen species (ROS) accumulation, malondialdehyde (MDA), and hydrogen peroxide (H2O2) level in the shoot and induced toxicity in melon root with an increase in electrolyte leakage. Furthermore, antioxidant enzyme peroxidase (POD) and superoxide dismutase (SOD) activity in the shoot significantly increased under exposure to higher CuONPs. Exposure to higher concentrations of CuONPs (225 mg/L) significantly deformed the stomatal aperture. Furthermore, reducing the number and abnormal size of palisade mesophyll and spongy mesophyll cells were investigated especially at high doses of CuONPs. Overall, our current work demonstrates that CuONPs of 10-40 nm size provide direct evidence for a toxic effect in C. melo seedlings. Our findings were expected to inspire the safe production of NPs and agrifood security. Thus, CuONPs prepared from toxic route and its bioaccumulation into our food chain through crop plants possess a serious threat to the ecological system.
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Affiliation(s)
- Iftikhar Hussain Shah
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Muhammad Aamir Manzoor
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Irfan Ali Sabir
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Muhammad Ashraf
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Fiza Liaquat
- Department of Agriculture, Forestry, and Bioresources, Seoul National University, Seoul, South Korea
| | - Shazma Gulzar
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Liying Chang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yidong Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
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