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Bahrami M, Serati Shirazi P, Moradi F, Hadi N, Sabbaghi N, Eslaminezhad S. How nanomaterials act against bacterial structures? a narrative review focusing on nanoparticle molecular mechanisms. Microb Pathog 2024; 196:107002. [PMID: 39393474 DOI: 10.1016/j.micpath.2024.107002] [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: 05/22/2024] [Revised: 09/01/2024] [Accepted: 10/07/2024] [Indexed: 10/13/2024]
Abstract
OBJECTIVE In recent years, significant progress has been made in the field of nanotechnology for the treatment and prevention of biofilm formation and Multidrug-resistant bacteria (MDR). MDR bacteria challenges is hazardous when microorganisms induce the formation of biofilms, which amplify resistance to antibiotics and promote the development of multidrug-resistant conditions. The unique physicochemical properties of certain nanomaterials make nanotechnology a promising option for combating MDR infections. Several studies have introduced nanomaterials with different antibacterial mechanisms that can effectively destroy MDR bacteria and their biofilms. This study reviews the research results, focusing on the various nanoparticle mechanisms that target bacterial structures. METHOD To accomplish this study, we conducted investigations to gather articles and relevant studies from validated medical databases such as Scopus, PubMed, Google Scholar, and Web of Science. The selected publications from 2007 to 2023. In this review, we provide a brief overview of nanoparticles, their mechanisms, and how they function against the structure of bacteria. Furthermore, we discuss the recent advancements in using certain nanoparticles to combat infection-induced biofilms and complications caused by multidrug resistance. FINDING Our findings demonstrate that various nanoparticles have the potential to effectively overcome bacterial infectious diseases by targeting biofilms and antibiotic-resistant strains. Additionally, the development of a new drug delivery approach based on nanosystems shows promise in overcoming antibiotic resistance and biofilms.
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Affiliation(s)
- Maryam Bahrami
- Department of Bacteriology & Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parisa Serati Shirazi
- Department of Bacteriology & Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Moradi
- Department of Bacteriology & Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Nahal Hadi
- Department of Bacteriology & Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Navid Sabbaghi
- Department of Parasitology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sahba Eslaminezhad
- Department of Chemical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran; Pars Biotech Research & Development Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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2
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Sarkar S, Roy A, Mitra R, Kundu S, Banerjee P, Acharya Chowdhury A, Ghosh S. Escaping the ESKAPE pathogens: A review on antibiofilm potential of nanoparticles. Microb Pathog 2024; 194:106842. [PMID: 39117012 DOI: 10.1016/j.micpath.2024.106842] [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: 04/18/2024] [Revised: 07/31/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
ESKAPE pathogens, a notorious consortium comprising Enterococcusfaecium, Staphylococcusaureus, Klebsiellapneumoniae, Acinetobacterbaumannii, Pseudomonasaeruginosa, and Enterobacter species, pose formidable challenges in healthcare settings due to their multidrug-resistant nature. The increasing global cases of antimicrobial-resistant ESKAPE pathogens are closely related to their remarkable ability to form biofilms. Thus, understanding the unique mechanisms of antimicrobial resistance of ESKAPE pathogens and the innate resilience of biofilms against traditional antimicrobial agents is important for developing innovative strategies to establish effective control methods against them. This review offers a thorough analysis of biofilm dynamics, with a focus on the general mechanisms of biofilm formation, the significant contribution of persister cells in the resistance mechanisms, and the recurrence of biofilms in comparison to planktonic cells. Additionally, this review highlights the potential strategies of nanoparticles for managing biofilms in the ESKAPE group of pathogens. Nanoparticles, with their unique physicochemical properties, provide promising opportunities for disrupting biofilm structures and improving antimicrobial effectiveness. The review has explored interactions between nanoparticles and biofilms, covering a range of nanoparticle types such as metal, metal-oxide, surface-modified, and functionalized nanoparticles, along with organic nanoparticles and nanomaterials. The additional focus of this review also encompasses green synthesis techniques of nanoparticles that involve plant extract and supernatants from bacterial and fungal cultures as reducing agents. Furthermore, the use of nanocomposites and nano emulsions in biofilm management of ESKAPE is also discussed. To conclude, the review addresses the current obstacles and future outlooks in nanoparticle-based biofilm management, stressing the necessity for further research and development to fully exploit the potential of nanoparticles in addressing biofilm-related challenges.
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Affiliation(s)
| | - Ankita Roy
- Department of Biosciences, JIS University, Kolkata, India
| | - Rangan Mitra
- Department of Biosciences, JIS University, Kolkata, India
| | - Sweta Kundu
- Department of Biosciences, JIS University, Kolkata, India
| | | | | | - Suparna Ghosh
- Department of Biosciences, JIS University, Kolkata, India.
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Wang W, Luo H, Wang H. Recent advances in micro/nanomotors for antibacterial applications. J Mater Chem B 2024; 12:5000-5023. [PMID: 38712692 DOI: 10.1039/d3tb02718j] [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: 05/08/2024]
Abstract
Currently, the rapid spread of multidrug-resistant bacteria derived from the indiscriminate use of traditional antibiotics poses a significant threat to public health worldwide. Moreover, established bacterial biofilms are extremely difficult to eradicate because of their high tolerance to traditional antimicrobial agents and extraordinary resistance to phagocytosis. Hence, it is of universal significance to develop novel robust and efficient antibacterial strategies to combat bacterial infections. Micro/nanomotors exhibit many intriguing properties, including enhanced mass transfer and micro-mixing resulting from their locomotion, intrinsic antimicrobial capabilities, active cargo delivery, and targeted treatment with precise micromanipulation, which facilitate the targeted delivery of antimicrobials to infected sites and their deep permeation into sites of bacterial biofilms for fast inactivation. Thus, the ideal antimicrobial activity of antibacterial micro/nanorobots makes them desirable alternatives to traditional antimicrobial treatments and has aroused extensive interest in recent years. In this review, recent advancements in antibacterial micro/nanomotors are briefly summarized, focusing on their synthetic methods, propulsion mechanism, and versatile antibacterial applications. Finally, some personal insights into the current challenges and possible future directions to translate proof-of-concept research to clinic application are proposed.
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Affiliation(s)
- Wenxia Wang
- School of Biomedical and Phamaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Hangyu Luo
- School of Biomedical and Phamaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Han Wang
- School of Biomedical and Phamaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, China.
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Unalan I, Occhipinti I, Miola M, Vernè E, Boccaccini AR. Development of Super-Paramagnetic Iron Oxide Nanoparticle-Coated Melt Electrowritten Scaffolds for Biomedical Applications. Macromol Biosci 2024; 24:e2300397. [PMID: 37902248 DOI: 10.1002/mabi.202300397] [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: 08/29/2023] [Revised: 10/20/2023] [Indexed: 10/31/2023]
Abstract
Polycaprolactone (PCL) is usually the material chosen for melt electrowriting (MEW) due to its biocompatibility, mechanical strength, and melt processability. This work first investigates the effect of different processing parameters to obtain optimum PCL-MEW scaffolds. Secondly, to increase PCL`s hydrophilicity and cell affinity, and to enable coating with superparamagnetic iron oxide nanoparticles (SPIONs) and silica-coated-SPIONs (Si-SPIONs), the scaffolds are modified with alkaline surface treatment. Finally, SPIONs and Si-SPIONs are successfully coated on MEW scaffolds. Results show that reproducible scaffolds are fabricated. Additionally, the alkaline treatment does not change the three-dimensional morphology of scaffolds while reducing fiber diameter. Furthermore, SEM images and ATR-FTIR results confirmed that SPIONs and Si-SPIONs-were coated on scaffolds. A cytocompatibility assay showed a non-toxic effect on MG-63 osteoblast-like cells in all scaffolds. Additionally, higher MC3T3-E1 pre-osteoblastic cell adhesion efficiency and proliferation are achieved for the alkaline-treated scaffolds and SPIONs/Si-SPIONs-coated scaffolds. All samples demonstrated the ability to generate heat, useful for hyperthermia-treatment, when subjected to an alternating magnetic field. Overall, the findings suggest that the strategy of coating PCL-MEW scaffolds with SPIONs/Si-SPIONs has the potential to improve scaffold performance for biomedical applications, especially for producing magnetically responsive MEW scaffolds.
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Affiliation(s)
- Irem Unalan
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nuremberg, Cauerstraße 6, 91058, Erlangen, Germany
| | - Ilenia Occhipinti
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, 10129, Italy
| | - Marta Miola
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, 10129, Italy
| | - Enrica Vernè
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, 10129, Italy
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nuremberg, Cauerstraße 6, 91058, Erlangen, Germany
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Rosca I, Turin-Moleavin IA, Sarghi A, Lungoci AL, Varganici CD, Petrovici AR, Fifere A, Pinteala M. Dextran coated iron oxide nanoparticles loaded with protocatechuic acid as multifunctional therapeutic agents. Int J Biol Macromol 2024; 256:128314. [PMID: 38007008 DOI: 10.1016/j.ijbiomac.2023.128314] [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: 02/08/2023] [Revised: 11/14/2023] [Accepted: 11/19/2023] [Indexed: 11/27/2023]
Abstract
Nowadays, there is a growing interest in multifunctional therapeutic agents as valuable tools to improve and expand the applicability field of traditional bioactive compounds. In this context, the synthesis and main characteristics of dextran-coated iron oxide nanoparticles (IONP-Dex) loaded with both an antioxidant, protocatechuic acid (PCA), and an antibiotic, ceftazidime (CAZ) or levofloxacin (LEV) are herein reported for the first time, with emphasis on the potentiation effect of PCA on drugs activity. All nanoparticles were characterized by transmission electron microscopy, X-ray diffraction, vibrating sample magnetometry, differential scanning calorimetry and dynamic light scattering. As evidenced by DPPH method, IONP-Dex loaded with PCA and LEV had similar antioxidant activity like those with PCA only, but higher than PCA and CAZ loaded ones. A synergy of action between PCA and each antibiotic co-loaded on IONP-Dex has been highlighted by an enhanced activity against reference bacterial strains, such as S. aureus and E. coli after 40 min of incubation. It was concluded that PCA, which is the main cause of the antioxidative properties of loaded nanoparticles, further improves the antimicrobial activity of IONP-Dex nanoparticles when was co-loaded with CAZ or LEV antibiotics. All constructs also showed a good biocompatibility with normal human dermal fibroblasts.
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Affiliation(s)
- Irina Rosca
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania.
| | - Ioana-Andreea Turin-Moleavin
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania.
| | - Alexandra Sarghi
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania.
| | - Ana-Lacramioara Lungoci
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania.
| | - Cristian-Dragos Varganici
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania.
| | - Anca-Roxana Petrovici
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania.
| | - Adrian Fifere
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania.
| | - Mariana Pinteala
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania.
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6
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Moradi F, Ghaedi A, Fooladfar Z, Bazrgar A. Recent advance on nanoparticles or nanomaterials with anti-multidrug resistant bacteria and anti-bacterial biofilm properties: A systematic review. Heliyon 2023; 9:e22105. [PMID: 38034786 PMCID: PMC10685370 DOI: 10.1016/j.heliyon.2023.e22105] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/05/2023] [Accepted: 11/04/2023] [Indexed: 12/02/2023] Open
Abstract
Objective With the wide spread of Multidrug-resistant bacteria (MDR) due to the transfer and acquisition of antibiotic resistance genes and the formation of microbial biofilm, various researchers around the world are looking for a solution to overcome these resistances. One potential strategy and the best candidate to overcome these infections is using an effective nanomaterial with antibacterial properties against them. Methods and analysis: In this study, we overview nanomaterials with anti-MDR bacteria and anti-biofilm properties. Hence, we systematically explored biomedical databases (Web of Sciences, Google Scholar, PubMed, and Scopus) to categorize related studies about nanomaterial with anti-MDR bacteria and anti-biofilm activities from 2007 to December 2022. Results In total, forty-one studies were investigated to find antibacterial and anti-biofilm information about the nanomaterial during 2007-2022. According to the collected documents, nineteen types of nanomaterial showed putative antibacterial effects such as Cu, Ag, Au, Au/Pt, TiO2, Al2O3, ZnO, Se, CuO, Cu/Ni, Cu/Zn, Fe3O4, Au/Fe3O4, Au/Ag, Au/Pt, Graphene O, and CuS. In addition, seven types of them considered as anti-biofilm agents such as Ag, ZnO, Au/Ag, Graphene O, Cu, Fe3O4, and Au/Ag. Conclusion According to the studies, each of nanomaterial has been designed with different methods and their effects against standard strains, clinical strains, MDR strains, and bacterial biofilms have been investigated in-vitro and in-vivo conditions. In addition, nanomaterials have different destructive mechanism on bacterial structures. Various nanoparticles (NP) introduced as the best candidate to designing new drug and medical equipment preventing infectious disease outbreaks by overcome antibiotic resistance and bacterial biofilm.
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Affiliation(s)
- Farhad Moradi
- Department of Bacteriology & Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Arshin Ghaedi
- Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Fooladfar
- Department of Bacteriology & Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aida Bazrgar
- Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Sultan M, Arya R, Chaurasia AK, Kim KK. Sensor histidine kinases kdpD and aauS regulate biofilm and virulence in Pseudomonas aeruginosa PA14. Front Cell Infect Microbiol 2023; 13:1270667. [PMID: 37881370 PMCID: PMC10595159 DOI: 10.3389/fcimb.2023.1270667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/25/2023] [Indexed: 10/27/2023] Open
Abstract
Pseudomonas aeruginosa is a multidrug-resistant opportunistic human pathogen that utilizes two-component systems (TCSs) to sense pathophysiological signals and coordinate virulence. P. aeruginosa contains 64 sensor histidine kinases (HKs) and 72 response regulators (RRs) that play important roles in metabolism, bacterial physiology, and virulence. However, the role of some TCSs in virulence remains uncharacterized. In this study, we evaluated the virulence potential of some uncharacterized sensor HK and RR knockouts in P. aeruginosa using a Galleria mellonella infection model. Furthermore, we demonstrated that KdpD and AauS HKs regulate virulence by affecting P. aeruginosa biofilm formation and motility. Both ΔkdpD and ΔaauS showed reduced biofilm and motility which were confirmed by restored phenotypes upon complementation. Moreover, ΔkdpD and ΔaauS exhibited increased survival of HeLa cells and G. mellonella during in vivo infection. Altered expression of the transcriptional regulators anR and lasR, along with the virulence genes lasA, pelA, cupA, pqsA, pqsB, pqsC, and pqsD in the mutant strains elucidated the mechanism by which ΔkdpD and ΔaauS affect virulence. These findings confirm that kdpD and aauS play important roles in P. aeruginosa pathogenesis by regulating biofilm formation and motility.
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Affiliation(s)
- Maria Sultan
- Department of Precision Medicine, Graduate School of Basic Medical Science, Institute for Antimicrobial Resistance Research and Therapeutics, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Rekha Arya
- Department of Precision Medicine, Graduate School of Basic Medical Science, Institute for Antimicrobial Resistance Research and Therapeutics, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
- Department of Orthopedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Akhilesh Kumar Chaurasia
- Department of Precision Medicine, Graduate School of Basic Medical Science, Institute for Antimicrobial Resistance Research and Therapeutics, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Kyeong Kyu Kim
- Department of Precision Medicine, Graduate School of Basic Medical Science, Institute for Antimicrobial Resistance Research and Therapeutics, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
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8
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Yesilay G, Dos Santos OAL, A BR, Hazeem LJ, Backx BP, J JV, Kamel AH, Bououdina M. Impact of pathogenic bacterial communities present in wastewater on aquatic organisms: Application of nanomaterials for the removal of these pathogens. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 261:106620. [PMID: 37399782 DOI: 10.1016/j.aquatox.2023.106620] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 06/06/2023] [Accepted: 06/09/2023] [Indexed: 07/05/2023]
Abstract
Contaminated wastewater (WW) can cause severe hazards to numerous delicate ecosystems and associated life forms. In addition, human health is negatively impacted by the presence of microorganisms in water. Multiple pathogenic microorganisms in contaminated water, including bacteria, fungi, yeast, and viruses, are vectors for several contagious diseases. To avoid the negative impact of these pathogens, WW must be free from pathogens before being released into stream water or used for other reasons. In this review article, we have focused on pathogenic bacteria in WW and summarized the impact of the different types of pathogenic bacteria on marine organisms. Moreover, we presented a variety of physical and chemical techniques that have been developed to provide a pathogen-free aquatic environment. Among the techniques, membrane-based techniques for trapping hazardous biological contaminants are gaining popularity around the world. Besides, novel and recent advancements in nanotechnological science and engineering suggest that many waterborne pathogens could be inactivated using nano catalysts, bioactive nanoparticles, nanostructured catalytic membranes, nanosized photocatalytic structures, and electrospun nanofibers and processes have been thoroughly examined.
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Affiliation(s)
- Gamze Yesilay
- Molecular Biology and Genetics Department, Hamidiye Institute of Health Sciences, University of Health Sciences-Türkiye, Istanbul 34668, Türkiye; Experimental Medicine Application & Research Center, University of Health Sciences, Validebag Research Park, Uskudar, Istanbul 34662, Türkiye
| | | | - Bevin Roger A
- Department of Chemistry, Catalysis and Nanomaterials Research Laboratory, Loyola College, Chennai 600 034, India
| | - Layla J Hazeem
- Department of Biology, College of Science, University of Bahrain, 32038, Bahrain
| | | | - Judith Vijaya J
- Department of Chemistry, Catalysis and Nanomaterials Research Laboratory, Loyola College, Chennai 600 034, India
| | - Ayman H Kamel
- Department of Chemistry, College of Science, University of Bahrain, 32038, Bahrain; Department of Chemistry, Faculty of Science, Ain Shams University, Abbasia, Cairo 11566, Egypt
| | - Mohamed Bououdina
- Department of Mathematics and Science, Faculty of Humanities and Sciences, Prince Sultan University, Riyadh, Saudi Arabia.
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Biotherapy Using Probiotics as Therapeutic Agents to Restore the Gut Microbiota to Relieve Gastrointestinal Tract Inflammation, IBD, IBS and Prevent Induction of Cancer. Int J Mol Sci 2023; 24:ijms24065748. [PMID: 36982816 PMCID: PMC10052502 DOI: 10.3390/ijms24065748] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/08/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
The gut microbiota is composed of several microbial strains with diverse and variable compositions in both healthy and sick people. An undisturbed gut microbiota needs to be sustained in order to perform all physiological, metabolic, and immune functions in a normal way to prevent the development of diseases. This article has reviewed the published information on the issue of disruption of the balance of the gut microbiota. This disruption could be for many reasons, such as microbial infection in the gastrointestinal tract, food poisoning, diarrhoea, chemotherapy, malnutrition, lifestyle, and ageing. If this disruption is not restored to normal, it might cause dysbiosis. Eventually, a gut microbiota interrupted by dysbiosis might initiate several health issues, such as inflammation of the gastrointestinal tract, the induction of cancer, and the progression of a variety of diseases such as irritable bowel syndrome and inflammatory bowel disease. This review concluded that biotherapy is a natural way of using probiotic products, whether in form of food, beverages, or supplements, to restore the gut microbiota disrupted by dysbiosis. Metabolites secreted by the ingested probiotics help to relieve gastrointestinal tract inflammation and can avoid the induction of cancer.
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Sadrekarimi H, Gardanova ZR, Bakhshesh M, Ebrahimzadeh F, Yaseri AF, Thangavelu L, Hasanpoor Z, Zadeh FA, Kahrizi MS. Emerging role of human microbiome in cancer development and response to therapy: special focus on intestinal microflora. Lab Invest 2022; 20:301. [PMID: 35794566 PMCID: PMC9258144 DOI: 10.1186/s12967-022-03492-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 06/20/2022] [Indexed: 12/12/2022]
Abstract
In recent years, there has been a greater emphasis on the impact of microbial populations inhabiting the gastrointestinal tract on human health and disease. According to the involvement of microbiota in modulating physiological processes (such as immune system development, vitamins synthesis, pathogen displacement, and nutrient uptake), any alteration in its composition and diversity (i.e., dysbiosis) has been linked to a variety of pathologies, including cancer. In this bidirectional relationship, colonization with various bacterial species is correlated with a reduced or elevated risk of certain cancers. Notably, the gut microflora could potentially play a direct or indirect role in tumor initiation and progression by inducing chronic inflammation and producing toxins and metabolites. Therefore, identifying the bacterial species involved and their mechanism of action could be beneficial in preventing the onset of tumors or controlling their advancement. Likewise, the microbial community affects anti-cancer approaches’ therapeutic potential and adverse effects (such as immunotherapy and chemotherapy). Hence, their efficiency should be evaluated in the context of the microbiome, underlining the importance of personalized medicine. In this review, we summarized the evidence revealing the microbiota's involvement in cancer and its mechanism. We also delineated how microbiota could predict colon carcinoma development or response to current treatments to improve clinical outcomes.
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11
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Jia B, Du X, Wang W, Qu Y, Liu X, Zhao M, Li W, Li Y. Nanophysical Antimicrobial Strategies: A Rational Deployment of Nanomaterials and Physical Stimulations in Combating Bacterial Infections. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105252. [PMID: 35088586 PMCID: PMC8981469 DOI: 10.1002/advs.202105252] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/22/2021] [Indexed: 05/02/2023]
Abstract
The emergence of bacterial resistance due to the evolution of microbes under antibiotic selection pressure, and their ability to form biofilm, has necessitated the development of alternative antimicrobial therapeutics. Physical stimulation, as a powerful antimicrobial method to disrupt microbial structure, has been widely used in food and industrial sterilization. With advances in nanotechnology, nanophysical antimicrobial strategies (NPAS) have provided unprecedented opportunities to treat antibiotic-resistant infections, via a combination of nanomaterials and physical stimulations. In this review, NPAS are categorized according to the modes of their physical stimulation, which include mechanical, optical, magnetic, acoustic, and electrical signals. The biomedical applications of NPAS in combating bacterial infections are systematically introduced, with a focus on their design and antimicrobial mechanisms. Current challenges and further perspectives of NPAS in the clinical treatment of bacterial infections are also summarized and discussed to highlight their potential use in clinical settings. The authors hope that this review will attract more researchers to further advance the promising field of NPAS, and provide new insights for designing powerful strategies to combat bacterial resistance.
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Affiliation(s)
- Bingqing Jia
- Institute of Advanced Interdisciplinary ScienceSchool of PhysicsShandong UniversityJinan250100China
| | - Xuancheng Du
- Institute of Advanced Interdisciplinary ScienceSchool of PhysicsShandong UniversityJinan250100China
| | - Weijie Wang
- Institute of Advanced Interdisciplinary ScienceSchool of PhysicsShandong UniversityJinan250100China
| | - Yuanyuan Qu
- Institute of Advanced Interdisciplinary ScienceSchool of PhysicsShandong UniversityJinan250100China
| | - Xiangdong Liu
- Institute of Advanced Interdisciplinary ScienceSchool of PhysicsShandong UniversityJinan250100China
| | - Mingwen Zhao
- Institute of Advanced Interdisciplinary ScienceSchool of PhysicsShandong UniversityJinan250100China
| | - Weifeng Li
- Institute of Advanced Interdisciplinary ScienceSchool of PhysicsShandong UniversityJinan250100China
| | - Yong‐Qiang Li
- Institute of Advanced Interdisciplinary ScienceSchool of PhysicsShandong UniversityJinan250100China
- Suzhou Research InstituteShandong UniversitySuzhou215123China
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12
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Otari SV, Kalia VC, Bisht A, Kim IW, Lee JK. Green Synthesis of Silver-Decorated Magnetic Particles for Efficient and Reusable Antimicrobial Activity. MATERIALS 2021; 14:ma14247893. [PMID: 34947488 PMCID: PMC8709440 DOI: 10.3390/ma14247893] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/11/2021] [Accepted: 12/16/2021] [Indexed: 12/23/2022]
Abstract
Metal and metal hybrid nanostructures have shown tremendous application in the biomedical and catalytic fields because of their plasmonic and catalytic properties. Here, a green and clean method was employed for the synthesis of silver nanoparticle (Ag NP)-SiO2-Fe2O3 hybrid microstructures, and biomolecules from green tea extracts were used for constructing the hybrid structures. The SiO2-Fe2O3 structures were synthesized using an ethanolic green tea leaf extract to form Bio-SiO2-Fe2O3 (BSiO2-Fe2O3) structures. Biochemical studies demonstrated the presence of green tea biomolecules in the BSiO2 layer. Reduction of the silver ions was performed by a BSiO2 layer to form Ag NPs of 5–10 nm in diameter in and on the BSiO2-Fe2O3 microstructure. The reduction process was observed within 600 s, which is faster than that reported elsewhere. The antimicrobial activity of the Ag-BSiO2-Fe2O3 hybrid structure was demonstrated against Staphylococcus aureus and Escherichia coli, and the nanostructures were further visualized using confocal laser scanning microscopy (CLSM). The magnetic properties of the Ag-BSiO2-Fe2O3 hybrid structure were used for studying reusable antimicrobial activity. Thus, in this study, we provide a novel green route for the construction of a biomolecule-entrapped SiO2-Fe2O3 structure and their use for the ultra-fast formation of Ag NPs to form antimicrobial active multifunctional hybrid structures.
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Affiliation(s)
- Sachin V. Otari
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Korea; (S.V.O.); (V.C.K.); (A.B.); (I.-W.K.)
| | - Vipin Chandra Kalia
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Korea; (S.V.O.); (V.C.K.); (A.B.); (I.-W.K.)
| | - Aarti Bisht
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Korea; (S.V.O.); (V.C.K.); (A.B.); (I.-W.K.)
| | - In-Won Kim
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Korea; (S.V.O.); (V.C.K.); (A.B.); (I.-W.K.)
- Institute of SK-KU Biomaterials, Konkuk University, Seoul 05029, Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Korea; (S.V.O.); (V.C.K.); (A.B.); (I.-W.K.)
- Correspondence: ; Tel.: +82-2-450-3505
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13
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Wang L, Zhu W, Zhou Y, Li Q, Jiao L, Qiu H, Bing W, Zhang Z. A biodegradable and near-infrared light-activatable photothermal nanoconvertor for bacterial inactivation. J Mater Chem B 2021; 10:3834-3840. [PMID: 34779465 DOI: 10.1039/d1tb01781k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The development of biodegradable nanomaterials for near-infrared photothermal antibacterial is of great significance to improve the biosafety of nano-antibacterial strategies in clinical application. In this study, a new nano-antibacterial strategy was developed, in which a biodegradable charge-transfer nanocomplex acted as a high-efficiency near-infrared light-activatable photothermal nanoconvertor. The charge-transfer nanocomplex was synthesized through oxidation-induced self-assembly of 3,3',5,5'-tetramethylbenzidine molecules. This nanocomplex can efficiently convert light energy around 900 nm into heat energy, with a photothermal conversion efficiency of up to 30%. More importantly, the nanocomplex can spontaneously degrade under physiological conditions within 12 hours. Utilizing the photothermal effect of this nanocomplex, both Gram-positive bacteria and Gram-negative bacteria can be inactivated within 2 minutes. In addition, the inactivation mechanism was systematically discussed and the results indicated that the photothermal effect induced bacterial cell membrane damage was probably responsible for the antibacterial effect.
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Affiliation(s)
- Luyao Wang
- School of Chemistry and Life Science, Changchun University of Technology, 2055 Yanan Street, Changchun, 130012, China.
| | - Weisheng Zhu
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yuan Zhou
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 44200, China.,College of Pharmacy, Hubei University of Traditional Chinese Medicine, Wuhan, 430065, China
| | - Qisi Li
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Lizhi Jiao
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Hao Qiu
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Wei Bing
- School of Chemistry and Life Science, Changchun University of Technology, 2055 Yanan Street, Changchun, 130012, China. .,Advanced Institute of Materials Science, Changchun University of Technology, 2055 Yanan Street, Changchun, 130012, China
| | - Zhijun Zhang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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14
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Nowak M, Barańska-Rybak W. Nanomaterials as a Successor of Antibiotics in Antibiotic-Resistant, Biofilm Infected Wounds? Antibiotics (Basel) 2021; 10:antibiotics10080941. [PMID: 34438991 PMCID: PMC8389008 DOI: 10.3390/antibiotics10080941] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 07/28/2021] [Accepted: 08/01/2021] [Indexed: 11/26/2022] Open
Abstract
Chronic wounds are a growing problem for both society and patients. They generate huge costs for treatment and reduce the quality of life of patients. The greatest challenge when treating a chronic wound is prolonged infection, which is commonly caused by biofilm. Biofilm makes bacteria resistant to individuals’ immune systems and conventional treatment. As a result, new treatment options, including nanomaterials, are being tested and implemented. Nanomaterials are particles with at least one dimension between 1 and 100 nM. Lipids, liposomes, cellulose, silica and metal can be carriers of nanomaterials. This review’s aim is to describe in detail the mode of action of those molecules that have been proven to have antimicrobial effects on biofilm and therefore help to eradicate bacteria from chronic wounds. Nanoparticles seem to be a promising treatment option for infection management, which is essential for the final stage of wound healing, which is complete wound closure.
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15
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Thorat ND, Dworniczek E, Brennan G, Chodaczek G, Mouras R, Gascón Pérez V, Silien C, Tofail SAM, Bauer J. Photo-responsive functional gold nanocapsules for inactivation of community-acquired, highly virulent, multidrug-resistant MRSA. J Mater Chem B 2021; 9:846-856. [PMID: 33367418 DOI: 10.1039/d0tb02047h] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The indiscriminate and sporadic use of antibiotics has contributed to the emergence of drug resistance phenomenon in bacteria including but not limited to Staphylococcus aureus. These drug-resistant bacteria have been threatening safety in hospitals and adversely affecting human health. Here we report a strategy to design photo-stimulated theranostic nanoprobes against methicillin-resistant Staphylococcus aureus (MRSA) "superbug" USA300. The nanocapsule probe is based on gold nanorods (GNRs) coated with pegylated thiol, mPEG-SH, which has been further modified by adding successively a natural antibacterial compound such as curcumin, and a cell targeting deoxyribonucleic acid (DNA) aptamer. We have used this novel gold nanocapsules for near-infrared (NIR) photophysical stimulation against pathogenic bacteria. We have found that the novel nanocapsule blocks biofilm formation and kills bacteria by photothermal action that causes disruption of the bacterial cell wall and membrane. In this approach, multiple drug-resistant Staphylococcus aureus has been captured by these nanocapsules through DNA aptamer targeting. All of the trapped bacteria could be killed in 30 minutes during the NIR stimulation due to the combination of photothermal effect, the generation of reactive oxygen species (ROS) and a loss of transmembrane potential (Δψ). Importantly we did not notice any resistance developed against the photothermal treatment. This is remarkable from an anti-biofilm activity point of view. Importantly, these multifunctional nanocapsules have also shown a surface enhanced Raman spectroscopy (SERS) effect, which could be used to evaluate the success of the inactivation effect during treatment. These results indicate that nanocapsule-based photo treatment can be an alternative antibacterial strategy without contributing to antibiotic resistance, and thus can be used for both environmental and therapeutic applications.
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Affiliation(s)
- Nanasaheb D Thorat
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, wybrzeże Stanisława Wyspiańskiego 27, Wrocław 50-370, Poland.
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16
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Velusamy P, Su CH, Kannan K, Kumar GV, Anbu P, Gopinath SCB. Surface engineered iron oxide nanoparticles as efficient materials for antibiofilm application. Biotechnol Appl Biochem 2021; 69:714-725. [PMID: 33751641 DOI: 10.1002/bab.2146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/04/2021] [Indexed: 01/07/2023]
Abstract
Overuse of antibiotics has led to the development of multi drug resistant strains. Antibiotic resistance is a major drawback in the biomedical field since medical implants are prone to infection by biofilms of antibiotic resistant strains of bacteria. With increasing prevalence of antibiotic resistant pathogenic bacteria, the search for alternative method is utmost importance. In this regard, magnetic nanoparticles are commonly used as a substitute for antibiotics that can circumvent the problem of biofilms growth on the surface of biomedical implants. Iron oxide nanoparticles (IONPs) have unique magnetic properties that can be exploited in various ways in the biomedical applications. IONPs are engineered employing different methods to induce surface functionalization that include the use of polyethyleneimine and oleic acid. IONPs have a mechanical effect on biofilms when in presence of an external magnet. In this review, a detailed description of surface engineered magnetic nanoparticles as ideal antibacterial agents is provided, accompanied by various methods of literature review. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Palaniyandi Velusamy
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, 603 203, Chengalpattu District, Kattankulathur, Tamil Nadu, India
| | - Chia-Hung Su
- Department of Chemical Engineering, Ming Chi University of Technology, Taishan, 24301, Taiwan
| | - Kiruba Kannan
- Department of Biotechnology, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 600 025, India
| | - Govindarajan Venkat Kumar
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, 603 203, Chengalpattu District, Kattankulathur, Tamil Nadu, India
| | - Periasmy Anbu
- Department of Biological Engineering, Inha University, Incheon, South Korea
| | - Subash C B Gopinath
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis, Arau, Perlis, 02600, Malaysia.,Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Perlis, 01000, Malaysia
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17
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Functional Identification of Serine Hydroxymethyltransferase as a Key Gene Involved in Lysostaphin Resistance and Virulence Potential of Staphylococcus aureus Strains. Int J Mol Sci 2020; 21:ijms21239135. [PMID: 33266291 PMCID: PMC7731198 DOI: 10.3390/ijms21239135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 11/22/2020] [Accepted: 11/26/2020] [Indexed: 12/17/2022] Open
Abstract
Gaining an insight into the mechanism underlying antimicrobial-resistance development in Staphylococcus aureus is crucial for identifying effective antimicrobials. We isolated S. aureus sequence type 72 from a patient in whom the S. aureus infection was highly resistant to various antibiotics and lysostaphin, but no known resistance mechanisms could explain the mechanism of lysostaphin resistance. Genome-sequencing followed by subtractive and functional genomics revealed that serine hydroxymethyltransferase (glyA or shmT gene) plays a key role in lysostaphin resistance. Serine hydroxymethyltransferase (SHMT) is indispensable for the one-carbon metabolism of serine/glycine interconversion and is linked to folate metabolism. Functional studies revealed the involvement of SHMT in lysostaphin resistance, as ΔshmT was susceptible to the lysostaphin, while complementation of the knockout expressing shmT restored resistance against lysostaphin. In addition, the ΔshmT showed reduced virulence under in vitro (mammalian cell lines infection) and in vivo (wax-worm infection) models. The SHMT inhibitor, serine hydroxymethyltransferase inhibitor 1 (SHIN1), protected the 50% of the wax-worm infected with wild type S. aureus. These results suggest SHMT is relevant to the extreme susceptibility to lysostaphin and the host immune system. Thus, the current study established that SHMT plays a key role in lysostaphin resistance development and in determining the virulence potential of multiple drug-resistant S. aureus.
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18
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Anti-bacterial activity of inorganic nanomaterials and their antimicrobial peptide conjugates against resistant and non-resistant pathogens. Int J Pharm 2020; 586:119531. [PMID: 32540348 DOI: 10.1016/j.ijpharm.2020.119531] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 06/04/2020] [Accepted: 06/06/2020] [Indexed: 12/20/2022]
Abstract
This review details the antimicrobial applications of inorganic nanomaterials of mostly metallic form, and the augmentation of activity by surface conjugation of peptide ligands. The review is subdivided into three main sections, of which the first describes the antimicrobial activity of inorganic nanomaterials against gram-positive, gram-negative and multidrug-resistant bacterial strains. The second section highlights the range of antimicrobial peptides and the drug resistance strategies employed by bacterial species to counter lethality. The final part discusses the role of antimicrobial peptide-decorated inorganic nanomaterials in the fight against bacterial strains that show resistance. General strategies for the preparation of antimicrobial peptides and their conjugation to nanomaterials are discussed, emphasizing the use of elemental and metallic oxide nanomaterials. Importantly, the permeation of antimicrobial peptides through the bacterial membrane is shown to aid the delivery of nanomaterials into bacterial cells. By judicious use of targeting ligands, the nanomaterial becomes able to differentiate between bacterial and mammalian cells and, thus, reduce side effects. Moreover, peptide conjugation to the surface of a nanomaterial will alter surface chemistry in ways that lead to reduction in toxicity and improvements in biocompatibility.
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19
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Ye Q, Chen W, Huang H, Tang Y, Wang W, Meng F, Wang H, Zheng Y. Iron and zinc ions, potent weapons against multidrug-resistant bacteria. Appl Microbiol Biotechnol 2020; 104:5213-5227. [PMID: 32303820 DOI: 10.1007/s00253-020-10600-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/27/2020] [Accepted: 03/31/2020] [Indexed: 12/11/2022]
Abstract
Drug-resistant bacteria are becoming an increasingly widespread problem in the clinical setting. The current pipeline of antibiotics cannot provide satisfactory options for clinicians, which brought increasing attention to the development and application of non-traditional antimicrobial substances as alternatives. Metal ions, such as iron and zinc ions, have been widely applied to inhibit pathogens through different mechanisms, including synergistic action with different metabolic enzymes, regulation of efflux pumps, and inhibition of biofilm formation. Compared with traditional metal oxide nanoparticles, iron oxide nanoparticles (IONPs) and zinc oxide nanoparticles (ZnO-NPs) display stronger bactericidal effect because of their smaller ion particle sizes and higher surface energies. The combined utilization of metal NPs (nanoparticles) and antibiotics paves a new way to enhance antimicrobial efficacy and reduce the incidence of drug resistance. In this review, we summarize the physiological roles and bactericidal mechanisms of iron and zinc ions, present the recent progress in the research on the joint use of metal NPs with different antibiotics, and highlight the promising prospects of metal NPs as antimicrobial agents for tackling multidrug-resistant bacteria.
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Affiliation(s)
- Qian Ye
- College of Biotechnology and pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211806, China.,Intensive Care Unit, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, China
| | - Wei Chen
- Clinical Research Center, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, China
| | - He Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 211816, China.,Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing, 211816, China.,State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China.,School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Yuqing Tang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 211816, China
| | - Weixiao Wang
- Clinical Research Center, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, China
| | - Fanrong Meng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 211816, China
| | - Huiling Wang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 211816, China
| | - Yishan Zheng
- Intensive Care Unit, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, China.
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20
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Designing Novel Photocatalysts for Disinfection of Multidrug-Resistant Waterborne Bacteria. NANOTECHNOLOGY FOR ENERGY AND ENVIRONMENTAL ENGINEERING 2020. [DOI: 10.1007/978-3-030-33774-2_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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21
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Allafchian A, Hosseini SS. Antibacterial magnetic nanoparticles for therapeutics: a review. IET Nanobiotechnol 2019; 13:786-799. [PMID: 31625518 PMCID: PMC8676097 DOI: 10.1049/iet-nbt.2019.0146] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 06/24/2019] [Accepted: 07/10/2019] [Indexed: 07/29/2023] Open
Abstract
Along with the extensive range of exotic nanoparticle (NPs) applications, investigation of magnetic NPs (MNPs) in vitro has ushered modern antibacterial studies into an increasingly attractive research area. A great number of microorganisms exist in the size scales from nanometre to micrometre regions. The enormous potential of engineered MNPs in therapeutic procedures against various drug-resistant bacteria has declined the menace of fatal bacterial infections. Many biocompatible MNPs have been introduced that possess remarkable impacts on various bacterial strains. Conventional synthesis methods such as co-precipitation or hydrothermal techniques have been widely adopted in the production of MNPs. The MNPs for antibacterial applications are mainly required to be superparamagnetic, recyclable and biocompatible. To implement novel strategies in developing new generation antimicrobial magnetic nanomaterials, it is essential to obtain a comprehensive preview of recent achievements in synthesis, proposed antibacterial mechanisms and characterisation techniques of these nanomaterials. This review highlights notable aspects of antibacterial activity in engineered MNPs and nanocomposites including their particle properties (size, shape and saturation magnetisation), antibacterial mechanisms, synthesis methods, testing methods, surface modifications and minimum inhibitory concentrations.
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Affiliation(s)
- Alireza Allafchian
- Research Institute for Nanotechnology and Advanced Materials, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Seyed Sajjad Hosseini
- Research Institute for Nanotechnology and Advanced Materials, Isfahan University of Technology, Isfahan 84156-83111, Iran
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22
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Grumezescu V, Gherasim O, Negut I, Banita S, Holban AM, Florian P, Icriverzi M, Socol G. Nanomagnetite-embedded PLGA Spheres for Multipurpose Medical Applications. MATERIALS 2019; 12:ma12162521. [PMID: 31398805 PMCID: PMC6719237 DOI: 10.3390/ma12162521] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 08/03/2019] [Accepted: 08/05/2019] [Indexed: 12/25/2022]
Abstract
We report on the synthesis and evaluation of biopolymeric spheres of poly(lactide-co-glycolide) containing different amounts of magnetite nanoparticles and Ibuprofen (PLGA-Fe3O4-IBUP), but also chitosan (PLGA-CS-Fe3O4-IBUP), to be considered as drug delivery systems. Besides morphological, structural, and compositional characterizations, the PLGA-Fe3O4-IBUP composite microspheres were subjected to drug release studies, performed both under biomimetically-simulated dynamic conditions and under external radiofrequency magnetic fields. The experimental data resulted by performing the drug release studies evidenced that PLGA-Fe3O4-IBUP microspheres with the lowest contents of Fe3O4 nanoparticles are optimal candidates for triggered drug release under external stimulation related to hyperthermia effect. The as-selected microspheres and their chitosan-containing counterparts were biologically assessed on macrophage cultures, being evaluated as biocompatible and bioactive materials that are able to promote cellular adhesion and proliferation. The composite biopolymeric spheres resulted in inhibited microbial growth and biofilm formation, as assessed against Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans microbial strains. Significantly improved antimicrobial effects were reported in the case of chitosan-containing biomaterials, regardless of the microorganisms' type. The nanostructured composite biopolymeric spheres evidenced proper characteristics as prolonged and controlled drug release platforms for multipurpose biomedical applications.
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Affiliation(s)
- Valentina Grumezescu
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, 077125 Magurele, Romania.
| | - Oana Gherasim
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, 077125 Magurele, Romania
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania
| | - Irina Negut
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, 077125 Magurele, Romania
| | - Stefan Banita
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, 077125 Magurele, Romania
| | - Alina Maria Holban
- Microbiology & Immunology Department, Faculty of Biology, University of Bucharest, 77206 Bucharest, Romania
| | - Paula Florian
- Ligand-Receptor Interactions Department, Institute of Biochemistry, Romanian Academy, 060031 Bucharest, Romania
| | - Madalina Icriverzi
- Ligand-Receptor Interactions Department, Institute of Biochemistry, Romanian Academy, 060031 Bucharest, Romania
| | - Gabriel Socol
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, 077125 Magurele, Romania.
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23
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Vallet-Regí M, González B, Izquierdo-Barba I. Nanomaterials as Promising Alternative in the Infection Treatment. Int J Mol Sci 2019; 20:E3806. [PMID: 31382674 PMCID: PMC6696612 DOI: 10.3390/ijms20153806] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 07/31/2019] [Accepted: 08/02/2019] [Indexed: 02/01/2023] Open
Abstract
Both the prevalence of antibiotic resistance and the increased biofilm-associated infections are boosting the demand for new advanced and more effective treatment for such infections. In this sense, nanotechnology offers a ground-breaking platform for addressing this challenge. This review shows the current progress in the field of antimicrobial inorganic-based nanomaterials and their activity against bacteria and bacterial biofilm. Herein, nanomaterials preventing the bacteria adhesion and nanomaterials treating the infection once formed are presented through a classification based on their functionality. To fight infection, nanoparticles with inherent antibacterial activity and nanoparticles acting as nanovehicles are described, emphasizing the design of the carrier nanosystems with properties targeting the bacteria and the biofilm.
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Affiliation(s)
- María Vallet-Regí
- Departamento de Química en Ciencias Farmacéuticas, Unidad de Química Inorgánica y Bioinorgánica, Universidad Complutense de Madrid. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12. Plaza Ramón y Cajal s/n, Madrid 28040, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid 28040, Spain.
| | - Blanca González
- Departamento de Química en Ciencias Farmacéuticas, Unidad de Química Inorgánica y Bioinorgánica, Universidad Complutense de Madrid. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12. Plaza Ramón y Cajal s/n, Madrid 28040, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid 28040, Spain
| | - Isabel Izquierdo-Barba
- Departamento de Química en Ciencias Farmacéuticas, Unidad de Química Inorgánica y Bioinorgánica, Universidad Complutense de Madrid. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12. Plaza Ramón y Cajal s/n, Madrid 28040, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid 28040, Spain
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24
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Vallabani NVS, Singh S, Karakoti AS. Magnetic Nanoparticles: Current Trends and Future Aspects in Diagnostics and Nanomedicine. Curr Drug Metab 2019; 20:457-472. [DOI: 10.2174/1389200220666181122124458] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/23/2018] [Accepted: 10/10/2018] [Indexed: 12/13/2022]
Abstract
Background:
Biomedical applications of Magnetic Nanoparticles (MNPs) are creating a major impact on
disease diagnosis and nanomedicine or a combined platform called theranostics. A significant progress has been
made to engineer novel and hybrid MNPs for their multifunctional modalities such as imaging, biosensors, chemotherapeutic
or photothermal and antimicrobial agents. MNPs are successfully applied in biomedical applications
due to their unique and tunable properties such as superparamagnetism, stability, and biocompatibility. Approval of
ferumoxytol (feraheme) for MRI and the fact that several Superparamagnetic Iron Oxide Nanoparticles (SPIONs) are
currently undergoing clinical trials have paved a path for future MNPs formulations. Intensive research is being
carried out in designing and developing novel nanohybrids for multiple applications in nanomedicine.
Objective:
The objective of the present review is to summarize recent developments of MNPs in imaging modalities
like MRI, CT, PET and PA, biosensors and nanomedicine including their role in targeting and drug delivery. Relevant
theory and examples of the use of MNPs in these applications have been cited and discussed to create a thorough
understanding of the developments in this field.
Conclusion:
MNPs have found widespread use as contrast agents in imaging modalities, as tools for bio-sensing, and
as therapeutic and theranostics agents. Multiple formulations of MNPs are in clinical testing and may be accepted in
clinical settings in near future.
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Affiliation(s)
- Naga Veera Srikanth Vallabani
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad 380009, Gujarat, India
| | - Sanjay Singh
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad 380009, Gujarat, India
| | - Ajay Singh Karakoti
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad 380009, Gujarat, India
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Abstract
The field of urology encompasses all benign and malignant disorders of the urinary tract and the male genital tract. Urological disorders convey a huge economic and patient quality-of-life burden. Hospital acquired urinary tract infections, in particular, are under scrutiny as a measure of hospital quality. Given the prevalence of these pathologies, there is much progress still to be made in available therapeutic options in order to minimize side effects and provide effective care. Current drug delivery mechanisms in urological malignancy and the benign urological conditions of overactive bladder (OAB), interstitial cystitis/bladder pain syndrome (IC/BPS), and urinary tract infection (UTI) will be reviewed herein. Both systemic and local therapies will be discussed including sustained release formulations, nanocarriers, hydrogels and other reservoir systems, as well as gene and immunotherapy. The primary focus of this review is on agents which have passed the preclinical stages of development.
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Affiliation(s)
- Alice Crane
- Glickman Urological and Kidney Institute, Cleveland Clinic Foundation 9500 Euclid Ave , Cleveland , Ohio 44195 , United States
| | - Sudhir Isharwal
- Glickman Urological and Kidney Institute, Cleveland Clinic Foundation 9500 Euclid Ave , Cleveland , Ohio 44195 , United States
| | - Hui Zhu
- Glickman Urological and Kidney Institute, Cleveland Clinic Foundation 9500 Euclid Ave , Cleveland , Ohio 44195 , United States
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26
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Baptista PV, McCusker MP, Carvalho A, Ferreira DA, Mohan NM, Martins M, Fernandes AR. Nano-Strategies to Fight Multidrug Resistant Bacteria-"A Battle of the Titans". Front Microbiol 2018; 9:1441. [PMID: 30013539 PMCID: PMC6036605 DOI: 10.3389/fmicb.2018.01441] [Citation(s) in RCA: 402] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 06/11/2018] [Indexed: 12/18/2022] Open
Abstract
Infectious diseases remain one of the leading causes of morbidity and mortality worldwide. The WHO and CDC have expressed serious concern regarding the continued increase in the development of multidrug resistance among bacteria. Therefore, the antibiotic resistance crisis is one of the most pressing issues in global public health. Associated with the rise in antibiotic resistance is the lack of new antimicrobials. This has triggered initiatives worldwide to develop novel and more effective antimicrobial compounds as well as to develop novel delivery and targeting strategies. Bacteria have developed many ways by which they become resistant to antimicrobials. Among those are enzyme inactivation, decreased cell permeability, target protection, target overproduction, altered target site/enzyme, increased efflux due to over-expression of efflux pumps, among others. Other more complex phenotypes, such as biofilm formation and quorum sensing do not appear as a result of the exposure of bacteria to antibiotics although, it is known that biofilm formation can be induced by antibiotics. These phenotypes are related to tolerance to antibiotics in bacteria. Different strategies, such as the use of nanostructured materials, are being developed to overcome these and other types of resistance. Nanostructured materials can be used to convey antimicrobials, to assist in the delivery of novel drugs or ultimately, possess antimicrobial activity by themselves. Additionally, nanoparticles (e.g., metallic, organic, carbon nanotubes, etc.) may circumvent drug resistance mechanisms in bacteria and, associated with their antimicrobial potential, inhibit biofilm formation or other important processes. Other strategies, including the combined use of plant-based antimicrobials and nanoparticles to overcome toxicity issues, are also being investigated. Coupling nanoparticles and natural-based antimicrobials (or other repurposed compounds) to inhibit the activity of bacterial efflux pumps; formation of biofilms; interference of quorum sensing; and possibly plasmid curing, are just some of the strategies to combat multidrug resistant bacteria. However, the use of nanoparticles still presents a challenge to therapy and much more research is needed in order to overcome this. In this review, we will summarize the current research on nanoparticles and other nanomaterials and how these are or can be applied in the future to fight multidrug resistant bacteria.
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Affiliation(s)
- Pedro V. Baptista
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - Matthew P. McCusker
- School of Food Science and Environmental Health, College of Sciences and Health, Dublin Institute of Technology, Dublin, Ireland
| | - Andreia Carvalho
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - Daniela A. Ferreira
- Department of Microbiology, Moyne Institute of Preventive Medicine, Schools of Genetics and Microbiology, Trinity College Dublin, University of Dublin, Dublin, Ireland
| | - Niamh M. Mohan
- Department of Microbiology, Moyne Institute of Preventive Medicine, Schools of Genetics and Microbiology, Trinity College Dublin, University of Dublin, Dublin, Ireland
- Nuritas Limited, Dublin, Ireland
| | - Marta Martins
- Department of Microbiology, Moyne Institute of Preventive Medicine, Schools of Genetics and Microbiology, Trinity College Dublin, University of Dublin, Dublin, Ireland
| | - Alexandra R. Fernandes
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
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Imdad S, Batool N, Pradhan S, Chaurasia AK, Kim KK. Identification of 2',4'-Dihydroxychalcone as an Antivirulence Agent Targeting HlyU, a Master Virulence Regulator in Vibrio vulnificus. Molecules 2018; 23:E1492. [PMID: 29925801 PMCID: PMC6099652 DOI: 10.3390/molecules23061492] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 06/14/2018] [Accepted: 06/19/2018] [Indexed: 12/14/2022] Open
Abstract
The emergence of antimicrobial resistance and rapid acclimation allows Vibrio vulnificus to rapidly propagate in the host. This problematic pathological scenario can be circumvented by employing an antivirulence strategy, treating Vibrio infections without hindering the bacterial growth. We developed a genome-integrated orthogonal inhibitor screening platform in E. coli to identify antivirulence agents targeting a master virulence regulator of V. vulnificus. We identified 2′,4′-dihydroxychalcone (DHC) from the natural compound library and verified that it decreases the expression of the major toxin network which is equivalent to the ∆hlyU deletion mutant. 2′,4′-DHC also reduced the hemolytic activity of V. vulnificus which was tested as an example of virulence phenotype. The electrophoretic mobility shift assay confirmed that 2′,4′-DHC specifically targeted HlyU and inhibited its binding to PrtxA1 promoter. Under in vivo conditions, a single dose of 2′,4′-DHC protected ~50% wax-worm larvae from V. vulnificus infection at a non-toxic concentration to both V. vulnificus and wax-worm larvae. In the current study, we demonstrated that an orthogonal reporter system is suitable for the identification of antivirulence compounds with accuracy, and identified 2′,4′-DHC as a potent antivirulence agent that specifically targets the HlyU virulence transcriptional regulator and significantly reduces the virulence and infection potential of V. vulnificus.
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Affiliation(s)
- Saba Imdad
- Department of Molecular Cell Biology, School of Medicine, Samsung Medical Center, Sungkyunkwan University, Suwon 16419, Korea.
| | - Nayab Batool
- Department of Molecular Cell Biology, School of Medicine, Samsung Medical Center, Sungkyunkwan University, Suwon 16419, Korea.
| | - Subhra Pradhan
- Department of Molecular Cell Biology, School of Medicine, Samsung Medical Center, Sungkyunkwan University, Suwon 16419, Korea.
| | - Akhilesh Kumar Chaurasia
- Department of Molecular Cell Biology, School of Medicine, Samsung Medical Center, Sungkyunkwan University, Suwon 16419, Korea.
| | - Kyeong Kyu Kim
- Department of Molecular Cell Biology, School of Medicine, Samsung Medical Center, Sungkyunkwan University, Suwon 16419, Korea.
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Mittal R, Pan DR, Parrish JM, Huang EH, Yang Y, Patel AP, Malhotra AK, Mittal J, Chhibber S, Harjai K. Local drug delivery in the urinary tract: current challenges and opportunities. J Drug Target 2018; 26:658-669. [PMID: 29251520 DOI: 10.1080/1061186x.2017.1419356] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Drug delivery is an important consideration in disease treatment. There are many opportunities for novel methods and technologies to hold promising roles in overcoming traditional obstacles. Delivery systems functionalised to boast synergistic antimicrobial effects, specific targeting, and enhanced bioavailability allow for improved therapeutic potential and better patient outcomes. Many of these delivery modalities find clinical practicality in the field of urology, specifically in the treatment of urinary tract infections (UTIs) and offer advantages over conventional methods. The aim of this review article is to discuss the current modalities of treatment for UTIs and the recent technological advancements for optimising drug delivery. We focus on challenges that persist in drug delivery during UTIs including barriers to antimicrobial penetration, drug resistance, biofilm formation and specific targeting limitations. With a discussion on how emerging methods combat these concerns, we present an overview of potential therapies with special emphasis on nanoparticle-based applications.
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Affiliation(s)
- Rahul Mittal
- a Department of Otolaryngology , University of Miami Miller School of Medicine , Miami , FL , USA
| | - Debbie R Pan
- a Department of Otolaryngology , University of Miami Miller School of Medicine , Miami , FL , USA
| | - James M Parrish
- a Department of Otolaryngology , University of Miami Miller School of Medicine , Miami , FL , USA
| | - Eric H Huang
- a Department of Otolaryngology , University of Miami Miller School of Medicine , Miami , FL , USA
| | - Yao Yang
- a Department of Otolaryngology , University of Miami Miller School of Medicine , Miami , FL , USA
| | - Amit P Patel
- a Department of Otolaryngology , University of Miami Miller School of Medicine , Miami , FL , USA
| | - Arul K Malhotra
- a Department of Otolaryngology , University of Miami Miller School of Medicine , Miami , FL , USA
| | - Jeenu Mittal
- a Department of Otolaryngology , University of Miami Miller School of Medicine , Miami , FL , USA
| | - Sanjay Chhibber
- b Department of Microbiology , Panjab University , Chandigarh , India
| | - Kusum Harjai
- b Department of Microbiology , Panjab University , Chandigarh , India
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Rai M, Ingle AP, Pandit R, Paralikar P, Gupta I, Chaud MV, dos Santos CA. Broadening the spectrum of small-molecule antibacterials by metallic nanoparticles to overcome microbial resistance. Int J Pharm 2017; 532:139-148. [DOI: 10.1016/j.ijpharm.2017.08.127] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 08/31/2017] [Accepted: 08/31/2017] [Indexed: 01/16/2023]
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Penders J, Stolzoff M, Hickey DJ, Andersson M, Webster TJ. Shape-dependent antibacterial effects of non-cytotoxic gold nanoparticles. Int J Nanomedicine 2017; 12:2457-2468. [PMID: 28408817 PMCID: PMC5383085 DOI: 10.2147/ijn.s124442] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Gold nanoparticles (AuNPs) of various shapes (including spheres, stars and flowers), with similar dimensions, were synthesized and evaluated for their antibacterial effects toward Staphylococcus aureus, a bacterium responsible for numerous life-threatening infections worldwide. Optical growth curve measurements and Gompertz modeling showed significant AuNP shape- and concentration-dependent decreases in bacterial growth with increases in bacterial growth lag time. To evaluate prospective use in in vivo systems, the cytotoxicity of the same AuNPs was evaluated toward human dermal fibroblasts in vitro by 3-(4,5 dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) viability assays and confocal microscopy. No indication of any mammalian cell toxicity or morphological effects was found. Additionally, it was observed that the AuNPs were readily internalized in fibroblasts after 4 days of incubation. Most importantly, the results of the present study showed that gold nanoflowers in particular possessed the most promising non-cytotoxic mammalian cell behavior with the greatest shape-dependent antibacterial activity-promising properties for their future investigation in a wide range of anti-infection applications.
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Affiliation(s)
- Jelle Penders
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA.,Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, Sweden
| | - Michelle Stolzoff
- Department of Bioengineering, Northeastern University, Boston, MA, USA
| | - Daniel J Hickey
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA
| | - Martin Andersson
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, Sweden
| | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA
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