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So B, Kim J, Jo JK, So H. Recent developments in preventing catheter-related infections based on biofilms: A comprehensive review. BIOMICROFLUIDICS 2024; 18:051506. [PMID: 39397894 PMCID: PMC11470810 DOI: 10.1063/5.0195165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 09/09/2024] [Indexed: 10/15/2024]
Abstract
Urinary and vascular catheters are among the most commonly used medical devices. However, infections caused by biofilm formation on the surface of catheters are a major cause of healthcare-associated infections. Traditional methods, such as using antimicrobials to prevent such infections, generally have short-term effects, and treatment is challenging owing to the emergence of antimicrobial-resistant bacteria. This review aims to evaluate the limitations of conventional catheter-related infection prevention efficacy, such as currently used antimicrobials, and analyze the efficacy and limitations of potential alternatives to prevent catheter-related infections that have not yet been commercialized, classified by the transition stages of biofilm formation. We intend to provide profound insights into the ideal technologies for preventing catheter-associated tract infections and present perspectives on future directions in this field.
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Affiliation(s)
- Byeongchan So
- Department of Medical and Digital Engineering, Hanyang University, Seoul 04763, South Korea
| | - Jongwon Kim
- Department of Medical and Digital Engineering, Hanyang University, Seoul 04763, South Korea
| | - Jung Ki Jo
- Department of Urology, College of Medicine, Hanyang University, Seoul 04763, South Korea
| | - Hongyun So
- Institute of Nano Science and Technology, Hanyang University, Seoul 04763, South Korea
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2
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Regulation of Staphylococcus aureus Virulence and Application of Nanotherapeutics to Eradicate S. aureus Infection. Pharmaceutics 2023; 15:pharmaceutics15020310. [PMID: 36839634 PMCID: PMC9960757 DOI: 10.3390/pharmaceutics15020310] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
Staphylococcus aureus is a versatile pathogen known to cause hospital- and community-acquired, foodborne, and zoonotic infections. The clinical infections by S. aureus cause an increase in morbidity and mortality rates and treatment costs, aggravated by the emergence of drug-resistant strains. As a multi-faceted pathogen, it is imperative to consolidate the knowledge on its pathogenesis, including the mechanisms of virulence regulation, development of antimicrobial resistance, and biofilm formation, to make it amenable to different treatment strategies. Nanomaterials provide a suitable platform to address this challenge, with the potential to control intracellular parasitism and multidrug resistance where conventional therapies show limited efficacy. In a nutshell, the first part of this review focuses on the impact of S. aureus on human health and the role of virulence factors and biofilms during pathogenesis. The second part discusses the large diversity of nanoparticles and their applications in controlling S. aureus infections, including combination with antibiotics and phytochemicals and the incorporation of antimicrobial coatings for biomaterials. Finally, the limitations and prospects using nanomaterials are highlighted, aiming to foster the development of novel nanotechnology-driven therapies against multidrug-resistant S. aureus.
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3
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Ma X, Zhu X, Qu S, Cai L, Ma G, Fan G, Sun X. Fabrication of copper nanoparticle composite nanogel for high-efficiency management of Pseudomonas syringae pv. tabaci on tobacco. PEST MANAGEMENT SCIENCE 2022; 78:2074-2085. [PMID: 35142039 DOI: 10.1002/ps.6833] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/04/2022] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Copper nanoparticles (CuNPs) can release copper ions (Cu2+ ) to control bacterial diseases on crops. However, the high concentration of the CuNPs applied in disease controlling can highly limit their application. In this work, by in situ reducing CuNPs in alginate nanogels and coated with cetyl trimethyl ammonium chloride (CTAC), a CuNP composite nanogel was fabricated as a new nanopesticide with low copper content. RESULTS Data showed that the CTAC coating would affect the antibacterial activity and leaf surface adhesion of the nanogel, while CuNP content could also influence the membrane damage ability of the gel. The nanogel could depress the growth of bacteria by rupturing its membrane and show a minimum inhibitory concentration (MIC) as low as 500 μg mL-1 , which only contain 58 μg mL-1 CuNP, and achieve a 64% of therapeutic efficiency (with 1000 μg mL-1 nanogel) in in vivo experiments, higher than that of commercial bactericide thiodiazole copper. Furthermore, the application of the nanogel can also perform a growth-promoting effect on the plant, which may be due to the supplement of copper element provided by CuNP. CONCLUSION The CuNP composite nanogel fabricated in this work performed high leaf disease controllability and safety compared to the commercial bactericide thiodiazole copper. We hope this nanogel can provide a potential high-efficiency nano-bactericide that can be used in the leaf bacterial disease control.
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Affiliation(s)
- Xiaozhou Ma
- College of Plant Protection, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing, China
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, Chongqing, China
| | - Xin Zhu
- College of Plant Protection, Southwest University, Chongqing, China
| | - Saijiao Qu
- College of Plant Protection, Southwest University, Chongqing, China
| | - Lin Cai
- College of Plant Protection, Southwest University, Chongqing, China
| | - Guanhua Ma
- College of Plant Protection, Southwest University, Chongqing, China
| | - Guangjin Fan
- College of Plant Protection, Southwest University, Chongqing, China
| | - Xianchao Sun
- College of Plant Protection, Southwest University, Chongqing, China
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing, China
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4
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Ozkan E, Mondal A, Douglass M, Hopkins SP, Garren M, Devine R, Pandey R, Manuel J, Singha P, Warnock J, Handa H. Bioinspired ultra-low fouling coatings on medical devices to prevent device-associated infections and thrombosis. J Colloid Interface Sci 2022; 608:1015-1024. [PMID: 34785450 PMCID: PMC8665144 DOI: 10.1016/j.jcis.2021.09.183] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 01/12/2023]
Abstract
Addressing thrombosis and biofouling of indwelling medical devices within healthcare institutions is an ongoing problem. In this work, two types of ultra-low fouling surfaces (i.e., superhydrophobic and lubricant-infused slippery surfaces) were fabricated to enhance the biocompatibility of commercial medical grade silicone rubber (SR) tubes that are widely used in clinical care. The superhydrophobic (SH) coatings on the tubing substrates were successfully created by dip-coating in superhydrophobic paints consisting of polydimethylsiloxane (PDMS), perfluorosilane-coated hydrophobic zinc oxide (ZnO) and copper (Cu) nanoparticles (NPs) in tetrahydrofuran (THF). The SH surfaces were converted to lubricant-infused slippery (LIS) surfaces through the infusion of silicone oil. The anti-biofouling properties of the coatings were investigated by adsorption of platelets, whole blood coagulation, and biofilm formation in vitro. The results revealed that the LIS tubes possess superior resistance to clot formation and platelet adhesion than uncoated and SH tubes. In addition, bacterial adhesion was investigated over 7 days in a drip-flow bioreactor, where the SH-ZnO-Cu tube and its slippery counterpart significantly reduced bacterial adhesion and biofilm formation of Escherichia coli relative to control tubes (>5 log10 and >3 log10 reduction, respectively). The coatings also demonstrated good compatibility with fibroblast cells. Therefore, the proposed coatings may find potential applications in high-efficiency on-demand prevention of biofilm and thrombosis formation on medical devices to improve their biocompatibility and reduce the risk of complications from medical devices.
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Affiliation(s)
- Ekrem Ozkan
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, United States
| | - Arnab Mondal
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, United States
| | - Megan Douglass
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, United States
| | - Sean P Hopkins
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, United States
| | - Mark Garren
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, United States
| | - Ryan Devine
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, United States
| | - Rashmi Pandey
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, United States
| | - James Manuel
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, United States
| | - Priyadarshini Singha
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, United States
| | - James Warnock
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, United States
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, United States.
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5
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Kasi G, Gnanasekar S, Zhang K, Kang ET, Xu LQ. Polyurethane‐based
composites with promising antibacterial properties. J Appl Polym Sci 2022. [DOI: 10.1002/app.52181] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Gopinath Kasi
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies School of Materials and Energy Southwest University Chongqing China
| | - Sathishkumar Gnanasekar
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies School of Materials and Energy Southwest University Chongqing China
| | - Kai Zhang
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies School of Materials and Energy Southwest University Chongqing China
| | - En Tang Kang
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies School of Materials and Energy Southwest University Chongqing China
- Department of Chemical and Biomolecular Engineering National University of Singapore Kent Ridge Singapore
| | - Li Qun Xu
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies School of Materials and Energy Southwest University Chongqing China
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province College of Chemistry and Chemical Engineering, Hainan Normal University Haikou China
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6
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Shen Q, Qi Y, Kong Y, Bao H, Wang Y, Dong A, Wu H, Xu Y. Advances in Copper-Based Biomaterials With Antibacterial and Osteogenic Properties for Bone Tissue Engineering. Front Bioeng Biotechnol 2022; 9:795425. [PMID: 35127670 PMCID: PMC8811349 DOI: 10.3389/fbioe.2021.795425] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/30/2021] [Indexed: 12/20/2022] Open
Abstract
Treating bone defects coupled with pathogen infections poses a formidable challenge to clinical medicine. Thus, there is an urgent need to develop orthopedic implants that provide excellent antibacterial and osteogenic properties. Of the various types, copper-based biomaterials capable of both regenerating bone and fighting infections are an effective therapeutic strategy for bone tissue engineering and therefore have attracted significant research interest. This review examines the advantages of copper-based biomaterials for biological functions and introduces these materials’ antibacterial mechanisms. We summarize current knowledge about the application of copper-based biomaterials with antimicrobial and osteogenic properties in the prevention and treatment of bone infection and discuss their potential uses in the field of orthopedics. By examining both broad and in-depth research, this review functions as a practical guide to developing copper-based biomaterials and offers directions for possible future work.
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Affiliation(s)
- Qiudi Shen
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, China
| | - Yansong Qi
- Department of Orthopedics, Inner Mongolia People’s Hospital, Hohhot, China
| | - Yangzhi Kong
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, China
| | - Huricha Bao
- Department of Orthopedics, Inner Mongolia People’s Hospital, Hohhot, China
| | - Yifan Wang
- Department of Orthopedics, Inner Mongolia People’s Hospital, Hohhot, China
| | - Alideertu Dong
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, China
- *Correspondence: Alideertu Dong, ; Haixia Wu, ; Yongsheng Xu,
| | - Haixia Wu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, China
- *Correspondence: Alideertu Dong, ; Haixia Wu, ; Yongsheng Xu,
| | - Yongsheng Xu
- Department of Orthopedics, Inner Mongolia People’s Hospital, Hohhot, China
- *Correspondence: Alideertu Dong, ; Haixia Wu, ; Yongsheng Xu,
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7
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Wang Y, Du J, Guo H, Liu R, Li Z, Yang T, Ai J, Liu C. The antibacterial activity and mechanism of polyurethane coating with quaternary ammonium salt. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02904-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Peng W, Fan B, Li Y, Dong Y, Qian W, Ji X, Gan D, Liu P, Shen J. Layer-by-layer construction of zwitterionic/biguanide polymers on silicone rubber as antifouling/bactericidal coating. J Mater Chem B 2022; 10:8013-8023. [DOI: 10.1039/d2tb01671k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biofilm formation on biomedical devices is the major cause of devices associated infections. Traditional antibiotics treatments on biofilm associated infections is increasing the risk of multidrug resistance. Thus, developing antibiotics-free...
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9
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Luminore CopperTouch Surface Coating Effectively Inactivates SARS-CoV-2, Ebola Virus, and Marburg Virus In Vitro. Antimicrob Agents Chemother 2021; 65:e0139020. [PMID: 33903111 PMCID: PMC8218611 DOI: 10.1128/aac.01390-20] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
We investigated the ability of Luminore CopperTouch copper and copper-nickel surfaces to inactivate filoviruses and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The copper and copper-nickel surfaces inactivated 99.9% of Ebola and Marburg viruses after 30 min, and the copper surfaces inactivated 99% of SARS-CoV-2 in 2 h. These data reveal that Ebola virus, Marburg virus, and SARS-CoV-2 are inactivated by exposure to copper ions, validating Luminore CopperTouch as an efficacious tool for infection control.
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10
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Talukdar MIA, Ahamad I, Iqbal S, Malik MA, Dar OA, Khursheed Akram M, Fatma T, Hashmi AA. Fabrication of metal incorporated polymer composite: An excellent antibacterial agent. J Mol Struct 2021; 1225:129091. [PMID: 32834117 PMCID: PMC7428313 DOI: 10.1016/j.molstruc.2020.129091] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 08/11/2020] [Accepted: 08/14/2020] [Indexed: 12/01/2022]
Abstract
US Food and Drug Administration (FDA) allowed for direct addition of castor oil for human consumption as food and most recently FDA approved castor oil as over-the-counter (OTC) for laxative drug. The present article highlights the green route phosphorylation of castor oil (COL) via condensation polymerization. Further, the incorporation of metal ions Cu (II)) and Zn (II) into the polymer matrix have been carried out at elevated temperature using catalyst p-toluene sulphonic acid (PTSA). The modification of the said material has been confirmed by FT-IR, UV-VIS, and 1H and 31P-NMR spectroscopy. Further, the in vitro antibacterial activities of the metal incorporated-COL has been performed by standard methods against B. cereus (MCC2243) (gram-positive) and E. coli (MCC2412) (gram-negative) bacteria. The results revealed that the incorporation of metal ions into the polymer matrix increases the antibacterial activity largely. This may be governed by the electrostatic interaction between metal ions and microbes, also the generation of free active oxygen hinders the normal activity of bacteria. These results suggest that the synthesized material may act a potential candidate for low cost, environment friendly antibacterial agents and may find their application in clinical fields. Herein we are also proposing mechanism of antibacterial activity.
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Affiliation(s)
- Md Ikbal Ahmed Talukdar
- Bioinorganic Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Irshad Ahamad
- Cynobacterial Biotechnology Lab, Department of Bioscience, Jamia Millia Islamia, New Delhi-110025, India
| | - Sajid Iqbal
- Materials Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Manzoor Ahmad Malik
- Bioinorganic Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Ovas Ahmad Dar
- Bioinorganic Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | | | - Tasneem Fatma
- Cynobacterial Biotechnology Lab, Department of Bioscience, Jamia Millia Islamia, New Delhi-110025, India
| | - Athar Adil Hashmi
- Bioinorganic Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
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11
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Patir A, Hwang GB, Lourenco C, Nair SP, Carmalt CJ, Parkin IP. Crystal Violet-Impregnated Slippery Surface to Prevent Bacterial Contamination of Surfaces. ACS APPLIED MATERIALS & INTERFACES 2021; 13:5478-5485. [PMID: 33492929 DOI: 10.1021/acsami.0c17915] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Biofilms which are self-organized communities can contaminate various infrastructural systems. Preventing bacterial adhesion on surfaces is more desirable than cleaning or disinfection of bacteria-contaminated surfaces. In this study, a 24 h bacterial adhesion test showed that "slippery surfaces" had increased resistance to bacterial contamination compared to polydimethylsiloxane and superhydrophobic surfaces. However, it did not completely inhibit bacterial attachment, indicating that it only retards surface contamination by bacteria. Hence, a strategy of killing bacteria with minimal bacterial adhesion was developed. A crystal violet-impregnated slippery (CVIS) surface with bactericidal and slippery features was produced through a simple dipping process. The CVIS surface had a very smooth and lubricated surface that was highly repellent to water and blood contamination. Bactericidal tests against Escherichia coli and Staphylococcus aureus showed that the CVIS surface exhibited bactericidal activity in dark and also showed significantly enhanced bactericidal activity (>3 log reduction in bacteria number) in white light.
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Affiliation(s)
- Adnan Patir
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Gi Byoung Hwang
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Claudio Lourenco
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Sean P Nair
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London, Rowland Hill Street, London NW3 2PF, U.K
| | - Claire J Carmalt
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Ivan P Parkin
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
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12
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Makhetha T, Moutloali R. Incorporation of a novel Ag–Cu@ZIF-8@GO nanocomposite into polyethersulfone membrane for fouling and bacterial resistance. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118733] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Skeeters SS, Rosu AC, Divyanshi, Yang J, Zhang K. Comparative Determination of Cytotoxicity of Sub-10 nm Copper Nanoparticles to Prokaryotic and Eukaryotic Systems. ACS APPLIED MATERIALS & INTERFACES 2020; 12:50203-50211. [PMID: 33124795 PMCID: PMC7764564 DOI: 10.1021/acsami.0c11052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/30/2024]
Abstract
Copper nanoparticles demonstrate antibacterial activity, but their toxicity to eukaryotic systems is less understood. Here, we carried out a comparative study to determine the biocompatibility and cytotoxicity of sub-10 nm copper nanoparticles to a variety of biological systems, including prokaryotic cells (Escherichia coli), yeast, mammalian cell lines (HEK293T, PC12), and zebrafish embryos. We determined the bearing threshold for the cell-death-inducing concentration of copper nanoparticles by probing cell growth, viability, as well as embryological features. To exclude the partial toxicity effect from the remnant reactants, we developed a purification approach using agarose gel electrophoresis. Purified CuONP solution inhibits bacterial growth and causes eukaryotic cell death at 170 and 122.5 ppm (w/w) during the 18 h of treatment, respectively. CuONP significantly reduces the pigmentation of retina pigmented epithelium of zebrafish embryos at 85 ppm. The cytotoxicity of CuONP in eukaryotic cells could arise from the oxidative stress induced by CuONP. This result suggests that small copper nanoparticles exert cytotoxicity in both prokaryotic and eukaryotic systems, and therefore, caution should be used to avoid direct contact of copper nanoparticles to human tissues considering the potential use of copper nanoparticles in the clinical setting.
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Affiliation(s)
- Savanna S. Skeeters
- Department of Biochemistry, School of Molecular and Cellular Biology, 600 S Matthews Avenue, University of Illinois at Urbana-Champaign, Urbana, IL 61801
| | - Ana C Rosu
- Department of Biochemistry, School of Molecular and Cellular Biology, 600 S Matthews Avenue, University of Illinois at Urbana-Champaign, Urbana, IL 61801
| | - Divyanshi
- Department of Cell and Developmental Biology, School of Molecular and Cellular Biology, 600 S Matthews Avenue, University of Illinois at Urbana-Champaign, Urbana, IL 61801
| | - Jing Yang
- Department of Comparative Biosciences, 2001 South Lincoln Avenue, University of Illinois at Urbana-Champaign, Urbana, IL 61802
| | - Kai Zhang
- Department of Biochemistry, School of Molecular and Cellular Biology, 600 S Matthews Avenue, University of Illinois at Urbana-Champaign, Urbana, IL 61801
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14
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Liu J, Yao X, Ye J, Zhang C, Lin H, Fu J. A printing-spray-transfer process for attaching biocompatible and antibacterial coatings to the surfaces of patient-specific silicone stents. ACTA ACUST UNITED AC 2020; 15:055036. [PMID: 32503025 DOI: 10.1088/1748-605x/ab99d6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
An antibacterial coating with stable antibacterial properties and favorable biocompatibility is recognized as an effective method to prevent bacterial adhesion and biofilm formation on biomedical implant surfaces. In this study, a convenient and low-cost printing-spray-transfer process was proposed that enables reliably attaching antibacterial and biocompatible coatings to patient-specific silicone implant surfaces. A desktop three-dimensional printer was used to print the mold of silicone implant molds according to the characteristics of the diseased areas. Multiwalled carbon nanotubes (MWCNTs) uniformly decorated with silver nanoparticles (AgNPs/CNTs) were synthesized as the antibacterial materials for the spray process. The well-distributed AgNPs/CNT coating was anchored to the silicone surface through an in-mold transfer printing process. Stable adhesion of the coatings was assessed via tape testing and UV-vis spectra. Hardly any AgNPs/CNTs peeled off the substrate, and the adhesion was rated at 4B. Antibacterial activity, Ag release, cell viability and morphology were further assessed, revealing high antibacterial activity and great biocompatibility. The process proposed herein has potential applications for fabricating stable antibacterial coatings on silicone implant surfaces, especially for patient-specific silicone implants such as silicone tracheal stents.
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Affiliation(s)
- Jiapeng Liu
- State Key Laboratory of Fluid Power & Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China. Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
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15
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Mantlo EK, Paessler S, Seregin A, Mitchell A. Luminore CopperTouch™ surface coating effectively inactivates SARS-CoV-2, Ebola and Marburg viruses in vitro. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2020:2020.07.05.20146043. [PMID: 32699857 PMCID: PMC7373145 DOI: 10.1101/2020.07.05.20146043] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
We investigated the ability of Luminore CopperTouch™ copper and copper-nickel surfaces to inactivate filoviruses and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). For this purpose, we compared viral titers in Vero cells from viral droplets exposed to copper surfaces for 30 min. The copper and copper-nickel surfaces inactivated 99.9% of the viral titer of both Ebola and Marburg viruses. The copper surfaces also inactivated 99% of SARS-CoV-2 titers in 2 hours to close to the limit of detection. These data add Ebolavirus, Marburgvirus, and SARS-CoV-2 (COVID-19) to the list of pathogens that can be inactivated by exposure to copper ions, validating Luminore CopperTouch™ technology (currently the only Environmental Protection Agency [EPA]-registered cold spray antimicrobial surface technology) as an efficacious, cost-friendly tool to improve infection control in hospitals, long-term care facilities, schools, hotels, buses, trains, airports, and other highly trafficked areas.
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Affiliation(s)
| | | | | | - Alfred Mitchell
- Luminore CopperTouch, Carlsbad, CA, USA
- Address correspondence to: Alfred Mitchell, MD, 2060 Space Park Drive, Suite 100, Nassau Bay, TX, 77058, 281-381-8576,
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16
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Rusu LC, Ardelean LC, Jitariu AA, Miu CA, Streian CG. An Insight into the Structural Diversity and Clinical Applicability of Polyurethanes in Biomedicine. Polymers (Basel) 2020; 12:E1197. [PMID: 32456335 PMCID: PMC7285236 DOI: 10.3390/polym12051197] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/13/2020] [Accepted: 05/22/2020] [Indexed: 01/16/2023] Open
Abstract
Due to their mechanical properties, ranging from flexible to hard materials, polyurethanes (PUs) have been widely used in many industrial and biomedical applications. PUs' characteristics, along with their biocompatibility, make them successful biomaterials for short and medium-duration applications. The morphology of PUs includes two structural phases: hard and soft segments. Their high mechanical resistance featuresare determined by the hard segment, while the elastomeric behaviour is established by the soft segment. The most important biomedical applications of PUs include antibacterial surfaces and catheters, blood oxygenators, dialysis devices, stents, cardiac valves, vascular prostheses, bioadhesives/surgical dressings/pressure-sensitive adhesives, drug delivery systems, tissue engineering scaffolds and electrospinning, nerve generation, pacemaker lead insulation and coatings for breast implants. The diversity of polyurethane properties, due to the ease of bulk and surface modification, plays a vital role in their applications.
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Affiliation(s)
- Laura-Cristina Rusu
- Department of Oral Pathology, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
| | - Lavinia Cosmina Ardelean
- Department of Technology of Materials and Devices in Dental Medicine, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania
| | - Adriana-Andreea Jitariu
- Department of Microscopic Morphology/Histology and Angiogenesis Research Center Timisoara, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
| | - Catalin Adrian Miu
- 3rd Department of Orthopaedics-Traumatology, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
| | - Caius Glad Streian
- Department of Cardiac Surgery, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
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17
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Ahmadabadi HY, Yu K, Kizhakkedathu JN. Surface modification approaches for prevention of implant associated infections. Colloids Surf B Biointerfaces 2020; 193:111116. [PMID: 32447202 DOI: 10.1016/j.colsurfb.2020.111116] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 01/08/2023]
Abstract
In this highlight, we summarize the surface modification approaches for development of infection-resistant coatings for biomedical devices and implants. We discuss the relevant key and highly cited research that have been published over the last five years which report the generation of infection-resistant coatings. An important strategy utilized to prevent bacterial adhesion and biofilm formation on device/implant surface is anti-adhesive protein repellant polymeric coatings based on polymer brushes or highly hydrated hydrogel networks. Further, the attachment of antimicrobial agents that can efficiently kill bacteria on the surface while also prevent bacterial adhesion on the surface is also investigated. Other approaches include the incorporation of antimicrobial agents to the surface coating resulting in a depot of bactericides which can be released on-demand or with time to prevent bacterial colonization on the surface that kill the adhered bacteria on the surface to make surface infection resistant.
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Affiliation(s)
- Hossein Yazdani Ahmadabadi
- Centre for Blood Research, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada; Department of Chemistry, University of British Columbia, Vancouver, BC, Canada
| | - Kai Yu
- Centre for Blood Research, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Jayachandran N Kizhakkedathu
- Centre for Blood Research, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada; Department of Chemistry, University of British Columbia, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada; School of Biomedical Engineering, University of British Columbia, Vancouver, BC, Canada.
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18
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Sehmi SK, Lourenco C, Alkhuder K, Pike SD, Noimark S, Williams CK, Shaffer MSP, Parkin IP, MacRobert AJ, Allan E. Antibacterial Surfaces with Activity against Antimicrobial Resistant Bacterial Pathogens and Endospores. ACS Infect Dis 2020; 6:939-946. [PMID: 32126763 DOI: 10.1021/acsinfecdis.9b00279] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Hospital-acquired bacterial infections are a significant burden on healthcare systems worldwide causing an increased duration of hospital stays and prolonged patient suffering. We show that polyurethane containing crystal violet (CV) and 3-4 nm zinc oxide nanoparticles (ZnO NPs) possesses excellent bactericidal activity against hospital-acquired pathogens including multidrug resistant Escherichia coli (E. coli), Pseudomonas aeruginosa, methicillin-resistant Staphylococcus aureus (MRSA), and even highly resistant endospores of Clostridioides (Clostridium) difficile. Importantly, we used clinical isolates of bacterial strains, a protocol to mimic the environmental conditions of a real exposure in the healthcare setting, and low light intensity equivalent to that encountered in UK hospitals (∼500 lux). Our data shows that ZnO NPs enhance the photobactericidal activity of CV under low intensity light even with short exposure times, and we show that this involves both Type I and Type II photochemical pathways. Interestingly, polyurethane containing ZnO NPs alone showed significant bactericidal activity in the dark against one strain of E. coli, indicating that the NPs possess both light-activated synergistic activity with CV and inherent bactericidal activity that is independent of light. These new antibacterial polymers are potentially useful in healthcare facilties to reduce the transmission of pathogens between people and the environment.
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Affiliation(s)
- Sandeep K. Sehmi
- Division of Microbial Disease, UCL Eastman Dental Institute, University College London, 256 Gray’s Inn Road, London WC1X 8LD, United Kingdom
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
- UCL Division of Surgery and Interventional Science, University College London, Royal Free Campus, Rowland Hill Street, London NW3 2PF, United Kingdom
| | - Claudio Lourenco
- Division of Microbial Disease, UCL Eastman Dental Institute, University College London, 256 Gray’s Inn Road, London WC1X 8LD, United Kingdom
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Khaled Alkhuder
- Division of Microbial Disease, UCL Eastman Dental Institute, University College London, 256 Gray’s Inn Road, London WC1X 8LD, United Kingdom
| | - Sebastian D. Pike
- Department of Chemistry, Imperial College London, Imperial College Road, London SW7 2AZ, United Kingdom
| | - Sacha Noimark
- Department of Medical Physics and Biomedical Engineering, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - Charlotte K. Williams
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Milo S. P. Shaffer
- Department of Chemistry, Imperial College London, Imperial College Road, London SW7 2AZ, United Kingdom
| | - Ivan P. Parkin
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Alexander J. MacRobert
- UCL Division of Surgery and Interventional Science, University College London, Royal Free Campus, Rowland Hill Street, London NW3 2PF, United Kingdom
| | - Elaine Allan
- Division of Microbial Disease, UCL Eastman Dental Institute, University College London, 256 Gray’s Inn Road, London WC1X 8LD, United Kingdom
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19
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Zhao Z, Ma X, Chen R, Xue H, Lei J, Du H, Zhang Z, Chen H. Universal Antibacterial Surfaces Fabricated from Quaternary Ammonium Salt-Based PNIPAM Microgels. ACS APPLIED MATERIALS & INTERFACES 2020; 12:19268-19276. [PMID: 32255339 DOI: 10.1021/acsami.0c00791] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Because of the excellent film-forming ability of poly(N-isopropylacrylamide) (PNIPAM) microgel and high-efficient bactericidal property of quaternary ammonium salt (QAS), QAS-based PNIPAM (QAS-PNIPAM) microgels are synthesized and employed to modify the surface of a range of commonly used materials including metal, plastic, and elastomer. Bacterial culture is carried out on such QAS-PNIPAM microgel-modified surfaces to examine the viability of the attached bacteria. It is found that the bactericidal efficiency is nearly 100% on the modified surfaces of all the studied materials. We attribute the high-efficient bactericidal performance of QAS-PNIPAM microgel film to the QAS component rather than the topography of the microgel film itself. In addition, the microgel film is robust and shows great integrity even after culture of the bacteria and repeated rinses, and the cell experiment demonstrates that this microgel film is cyto-compatible. Therefore, such a simple, versatile method of preparing antibacterial films paves the way for future bactericidal applications.
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Affiliation(s)
- Ziqing Zhao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xiaoliang Ma
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Rui Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Hui Xue
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jiehua Lei
- Jiangsu Biosurf Biotech Company Ltd., 218 Xinghu Street, Suzhou 215123, P. R. China
| | - Hui Du
- Jiangsu Biosurf Biotech Company Ltd., 218 Xinghu Street, Suzhou 215123, P. R. China
| | - Zexin Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Hong Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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20
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Dong H, Xiong R, Liang Y, Tang G, Yang J, Tang J, Niu J, Gao Y, Zhou Z, Cao Y. Development of glycine-copper( ii) hydroxide nanoparticles with improved biosafety for sustainable plant disease management. RSC Adv 2020; 10:21222-21227. [PMID: 35518721 PMCID: PMC9054364 DOI: 10.1039/d0ra02050h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/21/2020] [Indexed: 01/11/2023] Open
Abstract
The prepared Gly-Cu(OH)2 NPs could significantly reduce the severity of bacterial black rot and had no effect on phytotoxicity.
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Affiliation(s)
- Hongqiang Dong
- College of Plant Protection
- China Agricultural University
- Beijing
- China
- College of Plant Science
| | - Renci Xiong
- College of Plant Science
- Tarim University
- Alaer
- China
| | - You Liang
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Gang Tang
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Jiale Yang
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Jingyue Tang
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Junfan Niu
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Yunhao Gao
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Zhiyuan Zhou
- College of Plant Protection
- China Agricultural University
- Beijing
- China
| | - Yongsong Cao
- College of Plant Protection
- China Agricultural University
- Beijing
- China
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21
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Noor N, Mutalik S, Younas MW, Chan CY, Thakur S, Wang F, Yao MZ, Mou Q, Leung PHM. Durable Antimicrobial Behaviour from Silver-Graphene Coated Medical Textile Composites. Polymers (Basel) 2019; 11:E2000. [PMID: 31816952 PMCID: PMC6961056 DOI: 10.3390/polym11122000] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 11/20/2019] [Accepted: 11/29/2019] [Indexed: 01/01/2023] Open
Abstract
Silver nanoparticle (AgNP) and AgNP/reduced graphene oxide (rGO) nanocomposite impregnated medical grade polyviscose textile pads were formed using a facile, surface-mediated wet chemical solution-dipping process, without further annealing. Surfaces were sequentially treated in situ with a sodium borohydride (NaBH4) reducing agent, prior to formation, deposition, and fixation of Ag nanostructures and/or rGO nanosheets throughout porous non-woven (i.e., randomly interwoven) fibrous scaffolds. There was no need for stabilising agent use. The surface morphology of the treated fabrics and the reaction mechanism were characterised by Fourier transform infrared (FTIR) spectra, ultraviolet-visible (UV-Vis) absorption spectra, X-ray diffraction (XRD), Raman spectroscopy, dynamic light scattering (DLS) energy-dispersive X-ray analysis (EDS), and scanning electron microscopic (SEM). XRD and EDS confirmed the presence of pure-phase metallic silver. Variation of reducing agent concentration allowed control over characteristic plasmon absorption of AgNP while SEM imaging, EDS, and DLS confirmed the presence of and dispersion of Ag particles, with smaller agglomerates existing with concurrent rGO use, which also coincided with enhanced AgNP loading. The composites demonstrated potent antimicrobial activity against the clinically relevant gram-negative Escherichia coli (a key causative bacterial agent of healthcare-associated infections; HAIs). The best antibacterial rate achieved for treated substrates was 100% with only a slight decrease (to 90.1%) after 12 equivalent laundering cycles of standard washing. Investigation of silver ion release behaviours through inductively coupled plasmon optical emission spectroscopy (ICP-OES) and laundering durability tests showed that AgNP adhesion was aided by the presence of the rGO host matrix allowing for robust immobilisation of silver nanostructures with relatively high stability, which offered a rapid, convenient, scalable route to conformal NP-decorated and nanocomposite soft matter coatings.
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Affiliation(s)
- Nuruzzaman Noor
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Suhas Mutalik
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Muhammad Waseem Younas
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Cheuk Ying Chan
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Suman Thakur
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Faming Wang
- Materials Synthesis and Processing Lab, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (S.M.); (M.W.Y.); (C.Y.C.); (S.T.); (F.W.)
| | - Mian Zhi Yao
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Lee Shau Kee Building, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (M.Z.Y.); (Q.M.); (P.H.-m.L.)
| | - Qianqian Mou
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Lee Shau Kee Building, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (M.Z.Y.); (Q.M.); (P.H.-m.L.)
| | - Polly Hang-mei Leung
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Lee Shau Kee Building, Hung Hom, Kowloon, Hong Kong SAR 999077, China; (M.Z.Y.); (Q.M.); (P.H.-m.L.)
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22
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Mathew E, Domínguez-Robles J, Stewart SA, Mancuso E, O'Donnell K, Larrañeta E, Lamprou DA. Fused Deposition Modeling as an Effective Tool for Anti-Infective Dialysis Catheter Fabrication. ACS Biomater Sci Eng 2019; 5:6300-6310. [PMID: 33405537 DOI: 10.1021/acsbiomaterials.9b01185] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Catheter-associated infections are a common complication that occurs in dialysis patients. Current strategies to prevent infection include catheter coatings containing heparin, pyrogallol, or silver nanoparticles, which all have an increased risk of causing resistance in bacteria. Therefore, a novel approach for manufacture, such as the use of additive manufacturing (AM), also known as three-dimensional (3D) printing, is required. Filaments were produced by extrusion using thermoplastic polyurethane (TPU) and tetracycline hydrochloride (TC) in various concentrations (e.g., 0, 0.25, 0.5, and 1%). The extruded filaments were used in a fused deposition modeling (FDM) 3D printer to print catheter constructs at varying concentrations. Release studies in phosphate-buffered saline, microbiology studies, thermal analysis, contact angle, attenuated total reflection-Fourier transform infrared, scanning electron microscopy, and X-ray microcomputer tomography (μCT) analysis were conducted on the printed catheters. The results suggested that TC was uniformly distributed within the TPU matrix. The microbiology testing of the catheters showed that devices containing TC had an inhibitory effect on the growth of Staphylococcus aureus NCTC 10788 bacteria. Catheters containing 1% TC maintained inhibitory effect after 10 day release studies. After an initial burst release in the first 24 h, there was a steady release of TC in all concentrations of catheters. 3D-printed antibiotic catheters were successfully printed with inhibitory effect on S. aureus bacteria. Finally, TC containing catheters showed resistance to S. aureus adherence to their surfaces when compared with catheters containing no TC. Catheters containing 1% of TC showed a bacterial adherence reduction of up to 99.97%. Accordingly, the incorporation of TC to TPU materials can be effectively used to prepare anti-infective catheters using FDM. This study highlights the potential for drug-impregnated medical devices to be created through AM.
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Affiliation(s)
- Essyrose Mathew
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K
| | - Juan Domínguez-Robles
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K
| | - Sarah A Stewart
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K
| | - Elena Mancuso
- Nanotechnology and Integrated Bio-Engineering Centre (NIBEC), Ulster University, Jordanstown Campus BT37 0QB, U.K
| | - Kieran O'Donnell
- Nanotechnology and Integrated Bio-Engineering Centre (NIBEC), Ulster University, Jordanstown Campus BT37 0QB, U.K
| | - Eneko Larrañeta
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K
| | - Dimitrios A Lamprou
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K
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23
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Kumar B, Noor N, Thakur S, Pan N, Narayana H, Yan SC, Wang F, Shah P. Shape Memory Polyurethane-Based Smart Polymer Substrates for Physiologically Responsive, Dynamic Pressure (Re)Distribution. ACS OMEGA 2019; 4:15348-15358. [PMID: 31572833 PMCID: PMC6761750 DOI: 10.1021/acsomega.9b01167] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 09/02/2019] [Indexed: 06/10/2023]
Abstract
Shape memory polymers (SMPs) are an exciting class of stimuli-responsive smart materials that demonstrate reactive and reversible changes in mechanical property, usually by switching between different states due to external stimuli. We report on the development of a polyurethane-based SMP foam for effective pressure redistribution that demonstrates controllable changes in dynamic pressure redistribution capability at a low transition temperature (∼24 °C)-ideally suited to matching modulations in body contact pressure for dynamic pressure relief (e.g., for alleviation or pressure ulcer effects). The resultant SMP material has been extensively characterized by a series of tests including stress-strain testing, compression testing, dynamic mechanical analysis, optical microscopy, UV-visible absorbance spectroscopy, variable-temperature areal pressure distribution, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, differential scanning calorimetry, dynamic thermogravimetric analysis, and 1H nuclear magnetic resonance spectroscopy. The foam system exhibits high responsivity when tested for plantar pressure modulation with significant potential in pressure ulcers treatment. Efficient pressure redistribution (∼80% reduction in interface pressure), high stress response (∼30% applied stress is stored in fixity and released on recovery), and excellent deformation recovery (∼100%) are demonstrated in addition to significant cycling ability without performance loss. By providing highly effective pressure redistribution and modulation when in contact with the body's surface, this SMP foam offers novel mechanisms for alleviating the risk of pressure ulcers.
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Affiliation(s)
- Bipin Kumar
- Department of Textile Technology, Indian
Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Nuruzzaman Noor
- Institute of Textiles and Clothing, University Research
Facility in Chemical and Environmental Analysis, and School of Design, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Suman Thakur
- Institute of Textiles and Clothing, University Research
Facility in Chemical and Environmental Analysis, and School of Design, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Ning Pan
- Biological & Agricultural Engineering, UC Davis, Davis, California 95616, United States
| | - Harishkumar Narayana
- Institute of Textiles and Clothing, University Research
Facility in Chemical and Environmental Analysis, and School of Design, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Siu-cheong Yan
- Institute of Textiles and Clothing, University Research
Facility in Chemical and Environmental Analysis, and School of Design, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Faming Wang
- Institute of Textiles and Clothing, University Research
Facility in Chemical and Environmental Analysis, and School of Design, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Parth Shah
- Institute of Textiles and Clothing, University Research
Facility in Chemical and Environmental Analysis, and School of Design, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
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24
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Kamaruzzaman NF, Tan LP, Hamdan RH, Choong SS, Wong WK, Gibson AJ, Chivu A, Pina MDF. Antimicrobial Polymers: The Potential Replacement of Existing Antibiotics? Int J Mol Sci 2019; 20:E2747. [PMID: 31167476 PMCID: PMC6600223 DOI: 10.3390/ijms20112747] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/08/2019] [Accepted: 04/11/2019] [Indexed: 12/22/2022] Open
Abstract
Antimicrobial resistance is now considered a major global challenge; compromising medical advancements and our ability to treat infectious disease. Increased antimicrobial resistance has resulted in increased morbidity and mortality due to infectious diseases worldwide. The lack of discovery of novel compounds from natural products or new classes of antimicrobials, encouraged us to recycle discontinued antimicrobials that were previously removed from routine use due to their toxicity, e.g., colistin. Since the discovery of new classes of compounds is extremely expensive and has very little success, one strategy to overcome this issue could be the application of synthetic compounds that possess antimicrobial activities. Polymers with innate antimicrobial properties or that have the ability to be conjugated with other antimicrobial compounds create the possibility for replacement of antimicrobials either for the direct application as medicine or implanted on medical devices to control infection. Here, we provide the latest update on research related to antimicrobial polymers in the context of ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter spp.) pathogens. We summarise polymer subgroups: compounds containing natural peptides, halogens, phosphor and sulfo derivatives and phenol and benzoic derivatives, organometalic polymers, metal nanoparticles incorporated into polymeric carriers, dendrimers and polymer-based guanidine. We intend to enhance understanding in the field and promote further work on the development of polymer based antimicrobial compounds.
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Affiliation(s)
- Nor Fadhilah Kamaruzzaman
- Faculty of Veterinary Medicine, Locked bag 36, Universiti Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia.
| | - Li Peng Tan
- Faculty of Veterinary Medicine, Locked bag 36, Universiti Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia.
| | - Ruhil Hayati Hamdan
- Faculty of Veterinary Medicine, Locked bag 36, Universiti Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia.
| | - Siew Shean Choong
- Faculty of Veterinary Medicine, Locked bag 36, Universiti Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia.
| | - Weng Kin Wong
- School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia.
| | - Amanda Jane Gibson
- Royal Veterinary College, Pathobiology and Population Sciences, Hawkshead Lane, North Mymms, Hatfield AL9 7TA, UK.
| | - Alexandru Chivu
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London NW3 2PF, UK.
| | - Maria de Fatima Pina
- Medicines and Healthcare Regulatory Products Agency, 10 South Colonnade, Canary Wharf, London E14 4PU, UK.
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25
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Ghosh R, Swart O, Westgate S, Miller BL, Yates MZ. Antibacterial Copper-Hydroxyapatite Composite Coatings via Electrochemical Synthesis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5957-5966. [PMID: 30951314 DOI: 10.1021/acs.langmuir.9b00919] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Antibacterial copper-hydroxyapatite (Cu-HA) composite coatings on titanium were synthesized using a novel process consisting of two consecutive electrochemical reactions. In the first stage, HA nanocrystals were grown on titanium using the cathodic electrolytic synthesis. The HA-coated titanium was then used as the cathode in a second reaction stage to electrochemically reduce Cu2+ ions in solution to metallic Cu nanoparticles. Reaction conditions were found that result in nanoscale Cu particles growing on the surface of the HA crystals. The two-stage synthesis allows facile control of copper content in the HA coatings. Antibacterial activity was measured by culturing Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive) in the presence of coatings having varying copper contents. The coatings displayed copper concentration-dependent antibacterial activity against both types of bacteria, likely due to the slow release of copper ions from the coatings. The observation of antibacterial activity from a relatively low loading of copper on the bioactive HA support suggests that multifunctional implant coatings can be developed to supplement or supplant prophylactic antibiotics used in implant surgery that are responsible for creating resistant bacteria strains.
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Affiliation(s)
- Rashmi Ghosh
- Department of Chemical Engineering , University of Rochester , Rochester , New York 14623 , United States
| | - Oliver Swart
- Department of Dermatology , University of Rochester , Rochester , New York 14611 , United States
| | - Sabrina Westgate
- Department of Chemical Engineering , University of Rochester , Rochester , New York 14623 , United States
| | - Benjamin L Miller
- Department of Dermatology , University of Rochester , Rochester , New York 14611 , United States
| | - Matthew Z Yates
- Department of Chemical Engineering , University of Rochester , Rochester , New York 14623 , United States
- Laboratory for Laser Energetics , University of Rochester , Rochester , New York 14627 , United States
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26
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Marković ZM, Kováčová M, Humpolíček P, Budimir MD, Vajďák J, Kubát P, Mičušík M, Švajdlenková H, Danko M, Capáková Z, Lehocký M, Todorović Marković BM, Špitalský Z. Antibacterial photodynamic activity of carbon quantum dots/polydimethylsiloxane nanocomposites against Staphylococcus aureus, Escherichia coli and Klebsiella pneumoniae. Photodiagnosis Photodyn Ther 2019; 26:342-349. [PMID: 31022579 DOI: 10.1016/j.pdpdt.2019.04.019] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 04/04/2019] [Accepted: 04/19/2019] [Indexed: 11/26/2022]
Abstract
Despite great efforts, the design of antibacterial surfaces is still a challenge. In this work, results of structural, mechanical, cytotoxic and antibacterial activities of hydrophobic carbon quantum dots/polydimethylsiloxane surfaces are presented. Antibacterial action of this surface is based on the generation of reactive oxygen species which cause bacteria damage by oxidative stress. At the same time, this surface was not cytotoxic towards the NIH/3T3 cells. Swelling-encapsulation-shrink method is applied for encapsulation of hydrophobic carbon quantum dots in medical grade silicone-polydimethylsiloxane. XPS and photoluminescence spectroscopy analyses confirm that hydrophobic carbon quantum dots have been encapsulated successfully into polydimethylsiloxane polymer matrix. Based on stress-strain test the improvement of mechanical properties of these nanocomposites is established. It is shown by electron paramagnetic resonance spectroscopy and luminescence method that nanocomposite generates singlet oxygen initiated by 470 nm blue light irradiation. Antibacterial testing shows the nanocomposite in the form of foil kills Staphylococcus aureus, Escherichia coli and Klebsiella pneumoniae and is very effective after only a 15 min irradiation.
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Affiliation(s)
- Zoran M Marković
- Vinča Institute of Nuclear Sciences, University of Belgrade, P.O.B. 522, 11001 Belgrade, Serbia.
| | - Mária Kováčová
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 84541 Bratislava, Slovakia
| | - Petr Humpolíček
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, Zlín, Czech Republic
| | - Milica D Budimir
- Vinča Institute of Nuclear Sciences, University of Belgrade, P.O.B. 522, 11001 Belgrade, Serbia
| | - Jan Vajďák
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, Zlín, Czech Republic
| | - Pavel Kubát
- J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23 Praha 8, Czech Republic
| | - Matej Mičušík
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 84541 Bratislava, Slovakia
| | - Helena Švajdlenková
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 84541 Bratislava, Slovakia
| | - Martin Danko
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 84541 Bratislava, Slovakia
| | - Zdenka Capáková
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, Zlín, Czech Republic
| | - Marián Lehocký
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, Zlín, Czech Republic
| | | | - Zdeno Špitalský
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 84541 Bratislava, Slovakia.
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27
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Nikitin D, Madkour S, Pleskunov P, Tafiichuk R, Shelemin A, Hanuš J, Gordeev I, Sysolyatina E, Lavrikova A, Ermolaeva S, Titov V, Schönhals A, Choukourov A. Cu nanoparticles constrain segmental dynamics of cross-linked polyethers: a trade-off between non-fouling and antibacterial properties. SOFT MATTER 2019; 15:2884-2896. [PMID: 30849134 DOI: 10.1039/c8sm02413h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Copper has a strong bactericidal effect against multi-drug resistant pathogens and polyethers are known for their resistance to biofilm formation. Herein, we combined Cu nanoparticles (NPs) and a polyether plasma polymer in the form of nanocomposite thin films and studied whether both effects can be coupled. Cu NPs were produced by magnetron sputtering via the aggregation in a cool buffer gas whereas polyether layers were synthesized by Plasma-Assisted Vapor Phase Deposition with poly(ethylene oxide) (PEO) used as a precursor. In situ specific heat spectroscopy and XPS analysis revealed the formation of a modified polymer layer around the NPs which propagates on the scale of a few nanometers from the Cu NP/polymer interface and then transforms into a bulk polymer phase. The chemical composition of the modified layer is found to be ether-deficient due to the catalytic influence of copper whereas the bulk polymer phase exhibits the chemical composition close to the original PEO. Two cooperative glass transition phenomena are revealed that belong to the modified polymer layer and the bulk phase. The former is characterized by constrained mobility of polymer segments which manifests itself via a 30 K increase of dynamic glass transition temperature. Furthermore, the modified layer is characterized by the heterogeneous structure which results in higher fragility of this layer as compared to the bulk phase. The Cu NPs/polyether thin films exhibit reduced protein adsorption; however, the constrained segmental dynamics leads to the deterioration of the non-fouling properties for ultra-thin polyether coatings. The films are found to have a bactericidal effect against multi-drug resistant Gram-positive Methicillin-Resistant Staphylococcus aureus and Gram-negative Pseudomonas aeruginosa.
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Affiliation(s)
- Daniil Nikitin
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, Prague, Czech Republic.
| | - Sherif Madkour
- Bundesanstalt für Materialforschung und - prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany.
| | - Pavel Pleskunov
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, Prague, Czech Republic.
| | - Renata Tafiichuk
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, Prague, Czech Republic.
| | - Artem Shelemin
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, Prague, Czech Republic.
| | - Jan Hanuš
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, Prague, Czech Republic.
| | - Ivan Gordeev
- Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 16200 Prague, Czech Republic
| | - Elena Sysolyatina
- Gamaleya National Research Center of Epidemiology and Microbiology, Gamaleya 18, 123098 Moscow, Russia
| | - Alexandra Lavrikova
- Gamaleya National Research Center of Epidemiology and Microbiology, Gamaleya 18, 123098 Moscow, Russia
| | - Svetlana Ermolaeva
- Gamaleya National Research Center of Epidemiology and Microbiology, Gamaleya 18, 123098 Moscow, Russia
| | - Valerii Titov
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya 1, 153045 Ivanovo, Russia
| | - Andreas Schönhals
- Bundesanstalt für Materialforschung und - prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany.
| | - Andrei Choukourov
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, Prague, Czech Republic.
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28
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Wu K, Douglas SP, Wu G, MacRobert AJ, Allan E, Knapp CE, Parkin IP. A rugged, self-sterilizing antimicrobial copper coating on ultra-high molecular weight polyethylene: a preliminary study on the feasibility of an antimicrobial prosthetic joint material. J Mater Chem B 2019; 7:3310-3318. [DOI: 10.1039/c9tb00440h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We report here for the first time how a copper coating bond to ultra-high molecular weight polyethylene (UHMWPE) via low temperature aerosol assisted chemical vapour deposition.
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Affiliation(s)
- Ke Wu
- Department of Chemistry
- University College London
- London
- UK
- Division of Microbial Diseases
| | | | - Gaowei Wu
- Department of Chemical Engineering
- University College London
- UK
| | | | - Elaine Allan
- Division of Microbial Diseases
- UCL Eastman Dental Institute
- University College London
- London WC1X 8LD
- UK
| | | | - Ivan P. Parkin
- Department of Chemistry
- University College London
- London
- UK
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29
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Hong HR, Kim J, Park CH. Facile fabrication of multifunctional fabrics: use of copper and silver nanoparticles for antibacterial, superhydrophobic, conductive fabrics. RSC Adv 2018; 8:41782-41794. [PMID: 35558807 PMCID: PMC9091953 DOI: 10.1039/c8ra08310j] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 11/29/2018] [Indexed: 11/28/2022] Open
Abstract
This study aims to develop a multifunctional fabric for antibacterial, superhydrophobic and conductive performance using a facile fabrication method. Conductive metal particles, copper and silver, were used as antibacterial agents as well as a means to create nanoscale roughness on the fabric surface. Subsequent hydrophobic coating with 1-dodecanethiol produced a superhydrophobic surface. The single metal treatment with Cu or Ag, and the combined metal treatment of Cu/Ag were compared for the multifunctionality. The Cu/Ag treated fabric and the Cu treated fabric showed a bacteriostatic rate ≥ 99% and a sterilization rate ≥ 99% against S. aureus, suggesting a higher antibacterial activity against the Gram-positive bacteria. In contrast, the Ag treated fabric showed a lower antibacterial effect regardless of the bacteria type. With regards to conductivity, the single metal treated fabric did not exhibit conductivity; however the Cu/Ag treated fabric showed a high level conductivity with a surface resistivity of 25.17 ± 8.18 Ω sq-1 and 184.38 ± 85.42 Ω sq-1 before and after hydrophobic coating, respectively. Fabrics treated with Cu and Cu/Ag particles (with hydrophobic coating) displayed superhydrophobic characteristics with the contact angle of 161-162° and the shedding angle of 7.0-7.8°. The air permeability decreased after the particle treatment as the particles blocked the pores in the fabric. However, the water vapor permeability and tensile strength were not significantly affected by the particle treatment. This study is significant in that a multifunctionality of antibacterial effect, superhydrophobicity, and conductivity was achieved through the facile processes for metal nanoparticle attachment and hydrophobic coating. The multifunctional fabrics produced in this study can be practically applied to self-cleaning smart clothing, which has reduced laundering need, without hygiene concerns.
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Affiliation(s)
- Hyae Rim Hong
- Department of Textiles, Merchandising and Fashion Design, Seoul National University Seoul 08826 Republic of Korea
| | - Jooyoun Kim
- Department of Textiles, Merchandising and Fashion Design, Seoul National University Seoul 08826 Republic of Korea
| | - Chung Hee Park
- Department of Textiles, Merchandising and Fashion Design, Seoul National University Seoul 08826 Republic of Korea
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30
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Kováčová M, Marković ZM, Humpolíček P, Mičušík M, Švajdlenková H, Kleinová A, Danko M, Kubát P, Vajďák J, Capáková Z, Lehocký M, Münster L, Todorović Marković BM, Špitalský Z. Carbon Quantum Dots Modified Polyurethane Nanocomposite as Effective Photocatalytic and Antibacterial Agents. ACS Biomater Sci Eng 2018; 4:3983-3993. [PMID: 33418799 DOI: 10.1021/acsbiomaterials.8b00582] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Development of new types of antibacterial coatings or nanocomposites is of great importance due to widespread multidrug-resistant infections including bacterial infections. Herein, we investigated biocompatibility as well as structural, photocatalytic, and antibacterial properties of photoactive hydrophobic carbon quantum dots/polyurethane nanocomposite. The swell-encapsulation-shrink method was applied for production of these nanocomposites. Hydrophobic carbon quantum dots/polyurethane nanocomposites were found to be highly effective generator of singlet oxygen upon irradiation by low-power blue light. Analysis of conducted antibacterial tests on Staphyloccocus aureus and Escherichia coli showed 5-log bactericidal effect of these nanocomposites within 60 min of irradiation. Very powerful degradation of dye (rose bengal) was observed within 180 min of blue light irradiation of the nanocomposites. Biocompatibility studies revealed that nanocomposites were not cytotoxic against mouse embryonic fibroblast cell line, whereas they showed moderate cytotoxicity toward adenocarcinomic human epithelial cell line. Minor hemolytic effect of these nanocomposites toward red blood cells was revealed.
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Affiliation(s)
- Mária Kováčová
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cestá 9, 84541 Bratislava, Slovakia
| | - Zoran M Marković
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cestá 9, 84541 Bratislava, Slovakia.,Vinča Institute of Nuclear Sciences, University of Belgrade, Mike Alasa 12-14, 11001 Belgrade, Serbia
| | - Petr Humpolíček
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati, 5678 Zlín, Czech Republic
| | - Matej Mičušík
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cestá 9, 84541 Bratislava, Slovakia
| | - Helena Švajdlenková
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cestá 9, 84541 Bratislava, Slovakia
| | - Angela Kleinová
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cestá 9, 84541 Bratislava, Slovakia
| | - Martin Danko
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cestá 9, 84541 Bratislava, Slovakia
| | - Pavel Kubát
- J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23 Praha 8, Czech Republic
| | - Jan Vajďák
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati, 5678 Zlín, Czech Republic
| | - Zdenka Capáková
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati, 5678 Zlín, Czech Republic
| | - Marián Lehocký
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati, 5678 Zlín, Czech Republic
| | - Lukaš Münster
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati, 5678 Zlín, Czech Republic
| | | | - Zdeno Špitalský
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cestá 9, 84541 Bratislava, Slovakia
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31
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Veiga L, Garate O, Lloret P, Moina C, Ybarra G. One-Pot Ultrafast Microwave-Assisted Synthesis of Copper and Copper Oxide Nanoparticles. INTERNATIONAL JOURNAL OF NANOSCIENCE 2018. [DOI: 10.1142/s0219581x18500345] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A method of synthesis is presented for the rapid preparation of copper, copper oxide and mixed copper oxide-copper nanoparticles employing a conventional home microwave oven. The nanoparticles were characterized by SEM, XRD and UV-visible spectroscopy. The size and the composition of the nanoparticles were controlled by the heating time. Cuprous oxide nanoparticles were obtained at short heating times and copper nanoparticles at longer times, while mixed cuprous oxide-copper nanoparticles where obtained in an in between window of time.
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Affiliation(s)
- Lionel Veiga
- U.T. Nanomateriales, INTI-Procesos Superficiales, Instituto Nacional de Tecnología Industrial Av. Gral. Paz 5445, B1650WAB San Martín, Argentina
| | - Octavio Garate
- U.T. Nanomateriales, INTI-Procesos Superficiales, Instituto Nacional de Tecnología Industrial Av. Gral. Paz 5445, B1650WAB San Martín, Argentina
| | - Paulina Lloret
- U.T. Nanomateriales, INTI-Procesos Superficiales, Instituto Nacional de Tecnología Industrial Av. Gral. Paz 5445, B1650WAB San Martín, Argentina
| | - Carlos Moina
- U.T. Nanomateriales, INTI-Procesos Superficiales, Instituto Nacional de Tecnología Industrial Av. Gral. Paz 5445, B1650WAB San Martín, Argentina
| | - Gabriel Ybarra
- U.T. Nanomateriales, INTI-Procesos Superficiales, Instituto Nacional de Tecnología Industrial Av. Gral. Paz 5445, B1650WAB San Martín, Argentina
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32
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Yu J, Han Y, Liu Y. Synthesis of spirocyclosiloxanes for transparent copolymer thermosets. J Appl Polym Sci 2018. [DOI: 10.1002/app.46370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jianyi Yu
- The School of Chemistry; Beihang University; Beijing 100191 People's Republic of China
- Beijing Advanced Innovation Center for Biomedical Engineering; Beihang University; Beijing 100191 People's Republic of China
| | - Ye Han
- The School of Chemistry; Beihang University; Beijing 100191 People's Republic of China
- Beijing Advanced Innovation Center for Biomedical Engineering; Beihang University; Beijing 100191 People's Republic of China
| | - Yuzhou Liu
- The School of Chemistry; Beihang University; Beijing 100191 People's Republic of China
- Beijing Advanced Innovation Center for Biomedical Engineering; Beihang University; Beijing 100191 People's Republic of China
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33
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Patir A, Hwang GB, Nair SP, Allan E, Parkin IP. Photobactericidal Activity of Dual Dyes Encapsulated in Silicone Enhanced by Silver Nanoparticles. ACS OMEGA 2018; 3:6779-6786. [PMID: 30023960 PMCID: PMC6045333 DOI: 10.1021/acsomega.8b00552] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 05/21/2018] [Indexed: 06/08/2023]
Abstract
Crystal violet (CV) and methylene blue (MB) dyes with silver (Ag) nanoparticles (NPs) were encapsulated into silicone to produce light-activated antimicrobial surfaces. Optical microscopy and X-ray photoelectron spectroscopy showed that CV and MB were diffused throughout the silicone samples and that Ag NPs were successfully encapsulated by the swell-encapsulation-shrink process. Antimicrobial tests on Staphylococcus aureus and Escherichia coli showed that CV/MB-encapsulated silicone samples have stronger photobactericidal activity than CV or MB samples and the addition of Ag NPs significantly enhanced the antimicrobial activity under white light. The number of viable bacteria decreased below the detection limit (below <103 CFU) on the silicone-incorporating CV/MB/Ag NPs within 3 h for S. aureus and within 5 h for E. coli. In leaching tests over 216 h, the amount of dye leaching from the samples was barely detectable (<0.02 ppm). These surfaces have a potential for use in healthcare settings to decrease hospital-associated infections.
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Affiliation(s)
- Adnan Patir
- Materials
Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Gi Byoung Hwang
- Materials
Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Sean P. Nair
- Department
of Microbial Diseases, UCL Eastman Dental Institute, University College London, 256 Gray’s Inn Road, London WC1X 8LD, United Kingdom
| | - Elaine Allan
- Department
of Microbial Diseases, UCL Eastman Dental Institute, University College London, 256 Gray’s Inn Road, London WC1X 8LD, United Kingdom
| | - Ivan P. Parkin
- Materials
Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
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34
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Tripathy A, Kumar A, Chowdhury AR, Karmakar K, Purighalla S, Sambandamurthy V, Chakravortty D, Sen P. A Nanowire-Based Flexible Antibacterial Surface Reduces the Viability of Drug-Resistant Nosocomial Pathogens. ACS APPLIED NANO MATERIALS 2018; 1:2678-2688. [DOI: 10.1021/acsanm.8b00397] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Affiliation(s)
| | | | | | | | - Swathi Purighalla
- Mazumdar Shaw Centre for Translational Research, NH Health City, Bangalore 560099, India
| | - Vasan Sambandamurthy
- Mazumdar Shaw Centre for Translational Research, NH Health City, Bangalore 560099, India
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35
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Tripathy A, Kumar A, Sreedharan S, Muralidharan G, Pramanik A, Nandi D, Sen P. Fabrication of Low-Cost Flexible Superhydrophobic Antibacterial Surface with Dual-Scale Roughness. ACS Biomater Sci Eng 2018; 4:2213-2223. [PMID: 33435043 DOI: 10.1021/acsbiomaterials.8b00209] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this work, we report a large-area fabrication of a flexible superhydrophobic bactericidal surface decorated with copper hydroxide nanowires. This involves a simple two-step method which involves growth followed by transfer of the nanowires onto the polydimethylsiloxane (PDMS) surface by mechanical peeling. Additional roughness in PDMS is obtained through incomplete wetting of the nanoscale gaps which leads to dual-scale roughness and superhydrophobicity with a contact angle of 169° and hysteresis of less than 2°. The simplicity of the process makes it low-cost and easily scalable. The process allows fabrication of nonplanar 3D surfaces. The surface shows blood repellence and antibacterial activity against Escherichia coli with more than 5 log reductions in bacterial colony. The surface also shows hemocompatible behavior, making it suitable for healthcare applications. The fabricated surface is found to be extremely robust against stretching, twisting, sandpaper abrasion, solid weight impact, and tape peel test. The surface is found to withstand human weight multiple times without losing its hydrophobicity, making it suitable for several practical scenarios in healthcare and household applications.
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Affiliation(s)
- Abinash Tripathy
- Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Arvind Kumar
- Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Syama Sreedharan
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
| | | | - Amitava Pramanik
- Unilever R&D Bangalore, 64, Main Road, Whitefield, Bangalore 560066, India
| | - Dipankar Nandi
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
| | - Prosenjit Sen
- Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore 560012, India
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36
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Ozkan E, Allan E, Parkin IP. White-Light-Activated Antibacterial Surfaces Generated by Synergy between Zinc Oxide Nanoparticles and Crystal Violet. ACS OMEGA 2018; 3:3190-3199. [PMID: 30023864 PMCID: PMC6045480 DOI: 10.1021/acsomega.7b01473] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 02/20/2018] [Indexed: 05/29/2023]
Abstract
The prevalence of hospital-acquired infections (HAIs) caused by multidrug-resistant bacteria is a growing public health concern worldwide. Herein, a facile, easily scalable technique is reported to fabricate white-light-activated bactericidal surfaces by incorporating zinc oxide (ZnO) nanoparticles and crystal violet (CV) dye into poly(dimethylsiloxane). The effect of ZnO concentration on photobactericidal activity of CV is investigated, and we show that there is synergy between ZnO and CV. These materials showed highly significant antibacterial activity when tested against Staphylococcus aureus and Escherichia coli under white light conditions. These surfaces have potential to be used in healthcare environments to decrease the impact of HAIs.
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Affiliation(s)
- Ekrem Ozkan
- Materials
Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Elaine Allan
- Department
of Microbial Diseases, UCL Eastman Dental Institute, University College London, 256 Gray’s Inn Road, London WC1X 8LD, United Kingdom
| | - Ivan P. Parkin
- Materials
Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
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37
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Natan M, Banin E. From Nano to Micro: using nanotechnology to combat microorganisms and their multidrug resistance. FEMS Microbiol Rev 2018; 41:302-322. [PMID: 28419240 DOI: 10.1093/femsre/fux003] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 01/17/2017] [Indexed: 12/12/2022] Open
Abstract
The spread of antibiotic resistance and increasing prevalence of biofilm-associated infections is driving demand for new means to treat bacterial infection. Nanotechnology provides an innovative platform for addressing this challenge, with potential to manage even infections involving multidrug-resistant (MDR) bacteria. The current review summarizes recent progress over the last 2 years in the field of antibacterial nanodrugs, and describes their unique properties, mode of action and activity against MDR bacteria and biofilms. Biocompatibility and commercialization are also discussed. As opposed to the more common division of nanoparticles (NPs) into organic- and inorganic-based materials, this review classifies NPs into two functional categories. The first includes NPs exhibiting intrinsic antibacterial properties and the second is devoted to NPs serving as a cargo for delivering antibacterial agents. Antibacterial nanomaterials used to decorate medical devices and implants are reviewed here as well.
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Affiliation(s)
- Michal Natan
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel.,The Institute for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Ehud Banin
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel.,The Institute for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel
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38
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Peveler WJ, Noimark S, Al-Azawi H, Hwang GB, Crick CR, Allan E, Edel JB, Ivanov AP, MacRobert AJ, Parkin IP. Covalently Attached Antimicrobial Surfaces Using BODIPY: Improving Efficiency and Effectiveness. ACS APPLIED MATERIALS & INTERFACES 2018; 10:98-104. [PMID: 29210273 DOI: 10.1021/acsami.7b13273] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The development of photoactivated antimicrobial surfaces that kill pathogens through the production of singlet oxygen has proved very effective in recent years, with applications in medical devices and hospital touch surfaces, to improve patient safety and well being. However, many of these surfaces require a swell-encapsulation-shrink strategy to incorporate the photoactive agents in a polymer matrix, and this is resource intensive, given that only the surface fraction of the agent is active against bacteria. Furthermore, there is a risk that the agent will leach from the polymer and thus raises issues of biocompatibility and patient safety. Here, we describe a more efficient method of fabricating a silicone material with a covalently attached monolayer of photoactivating agent that uses heavy-atom triplet sensitization for improved singlet oxygen generation and corresponding antimicrobial activity. We use boron-dipyrromethane with a reactive end group and incorporated Br atoms, covalently attached to poly(dimethylsiloxane). We demonstrate the efficacy of this material in producing singlet oxygen and killing Staphylococcus aureus and suggest how it might be easily modifiable for future antimicrobial surface development.
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Affiliation(s)
- William J Peveler
- Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, U.K
| | - Sacha Noimark
- Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, U.K
- Department of Medical Physics and Biomedical Engineering, Malet Place Engineering Building, University College London , London WC1E 6BT, U.K
| | - Hassan Al-Azawi
- Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, U.K
| | - Gi Byoung Hwang
- Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, U.K
| | - Colin R Crick
- Materials Innovation Factory, Department of Chemistry, University of Liverpool , Liverpool L69 7ZD, U.K
| | - Elaine Allan
- Division of Microbial Diseases, UCL Eastman Dental Institute, University College London , 256 Gray's Inn Road, London WC1X 8LD, U.K
| | - Joshua B Edel
- Department of Chemistry, Imperial College London , Exhibition Road, London SW7 2AZ, U.K
| | - Aleksandar P Ivanov
- Department of Chemistry, Imperial College London , Exhibition Road, London SW7 2AZ, U.K
| | - Alexander J MacRobert
- Division of Surgery & Interventional Science, Department of Nanotechnology, Royal Free Campus, University College London , Rowland Hill Street, London NW3 2PF, U.K
| | - Ivan P Parkin
- Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, U.K
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39
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Lourenço C, Macdonald TJ, Gavriilidis A, Allan E, MacRobert AJ, Parkin IP. Effects of bovine serum albumin on light activated antimicrobial surfaces. RSC Adv 2018; 8:34252-34258. [PMID: 35548657 PMCID: PMC9087004 DOI: 10.1039/c8ra04361b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 09/12/2018] [Indexed: 11/21/2022] Open
Abstract
In this work we demonstrate that our active surfaces still show antibacterial activity even with BSA at low light.
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Affiliation(s)
- Cláudio Lourenço
- Materials Chemistry Research Centre
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
| | - Thomas J. Macdonald
- Materials Chemistry Research Centre
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
| | | | - Elaine Allan
- Division of Microbial Disease
- UCL Eastman Dental Institute University College London
- London
- UK
| | - Alexander J. MacRobert
- Division of Surgery and Interventional Science
- University College London
- Royal Free Campus
- London
- UK
| | - Ivan P. Parkin
- Materials Chemistry Research Centre
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
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40
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Kottmann A, Mejía E, Hémery T, Klein J, Kragl U. Recent Developments in the Preparation of Silicones with Antimicrobial Properties. Chem Asian J 2017; 12:1168-1179. [PMID: 28393471 DOI: 10.1002/asia.201700244] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 04/10/2017] [Indexed: 01/24/2023]
Abstract
This Focus Review describes state-of-the-art methods for the preparation of antimicrobial silicones. Given the diversity of antimicrobial activity and their mechanisms, the performance of these materials is highly dependent on the characteristics of the polymeric matrix. Therefore, different synthetic routes have been developed, such as 1) physical treatments, 2) chemical transformations, and 3) copolymerization. This classification is not exclusive, so some products belong to more than one class. Herein, we attempt to present a handy overview of the development of antimicrobial silicones, their most important application fields, the most relevant antimicrobial assays, and, as the title suggests, an overview of the most relevant preparation methods.
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Affiliation(s)
- Annika Kottmann
- Leibniz Institute for Catalysis, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Esteban Mejía
- Leibniz Institute for Catalysis, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Thérèse Hémery
- Henkel AG & Co. KGaA, Henkelstraße 67, 40589, Düsseldorf, Germany
| | - Johann Klein
- Henkel AG & Co. KGaA, Henkelstraße 67, 40589, Düsseldorf, Germany
| | - Udo Kragl
- Leibniz Institute for Catalysis, Albert-Einstein-Straße 29a, 18059, Rostock, Germany.,University of Rostock, Institute of Chemistry, Albert-Einstein-Str. 3a, 18059, Rostock, Germany
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41
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Guo J, Xu Q, Shi R, Zheng Z, Mao H, Yan F. Polyanionic Antimicrobial Membranes: An Experimental and Theoretical Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:4346-4355. [PMID: 28388842 DOI: 10.1021/acs.langmuir.7b00185] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Polycationic polymers have been widely used as antimicrobial materials because of their broad spectrum activity and potential use as new antibiotics. Herein, we report the synthesis of polyanionic antimicrobial membranes by in situ photo-cross-linking of a sulfate based anionic monomer, followed by cation-exchange with organic (quaternary ammonium or imidazolium) or metal (Ag+, Cu2+, Fe3+, Zn2+, Na+, K+) cations. The resultant polyanionic membranes show high and broad spectrum antibacterial activities against both bacteria (Escherichia coli, Staphylococcus aureus) and fungi (Candida albicans ). In addition, the polyanionic antimicrobial membranes efficiently inhibited the formation of biofilms by SC5314 and its crk1 gene deleted (Δcrk1) C. albicans strains. Furthermore, the synthesized polyanionic membranes exhibit good blood compatibility, low cytotoxicity and long-term antibacterial stability, demonstrating safe antimicrobial materials in the application of healthcare.
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Affiliation(s)
- Jiangna Guo
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, China
| | - Qiming Xu
- Department of Anesthesiology and Critical Care Medicine, Zhongshan Hospital, Fudan University , 180 Fenglin Road, Shanghai, 200032, China
| | - Rongwei Shi
- Institute of Technical Biology & Agriculture Engineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences , 350 Shushanhu Road, Anhui, 230031, China
| | - Zhiqiang Zheng
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, China
| | - Hailei Mao
- Department of Anesthesiology and Critical Care Medicine, Zhongshan Hospital, Fudan University , 180 Fenglin Road, Shanghai, 200032, China
| | - Feng Yan
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, China
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42
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Javid A, Kumar M, Yoon S, Lee JH, Han JG. Size-controlled growth and antibacterial mechanism for Cu:C nanocomposite thin films. Phys Chem Chem Phys 2017; 19:237-244. [DOI: 10.1039/c6cp06955j] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Plasma energy induced size reduction of Cu nanoparticles (at fixed volume fraction) in C matrix demonstrated effective antibacterial activity.
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Affiliation(s)
- Amjed Javid
- Center for Advanced Plasma Surface Technology (CAPST)
- NU-SKKU Joint Institute for Plasma Nano-Materials (IPNM)
- Advanced Materials Science and Engineering
- Sungkyunkwan University
- Suwon
| | - Manish Kumar
- Center for Advanced Plasma Surface Technology (CAPST)
- NU-SKKU Joint Institute for Plasma Nano-Materials (IPNM)
- Advanced Materials Science and Engineering
- Sungkyunkwan University
- Suwon
| | - Seokyoung Yoon
- SKKU Advanced Institute of Nanotechnology (SAINT)
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Jung Heon Lee
- Biological & Nanoscale Materials Lab
- Advanced Materials Science and Engineering
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Jeon Geon Han
- Center for Advanced Plasma Surface Technology (CAPST)
- NU-SKKU Joint Institute for Plasma Nano-Materials (IPNM)
- Advanced Materials Science and Engineering
- Sungkyunkwan University
- Suwon
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43
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Macdonald TJ, Wu K, Sehmi SK, Noimark S, Peveler WJ, du Toit H, Voelcker NH, Allan E, MacRobert AJ, Gavriilidis A, Parkin IP. Thiol-Capped Gold Nanoparticles Swell-Encapsulated into Polyurethane as Powerful Antibacterial Surfaces Under Dark and Light Conditions. Sci Rep 2016; 6:39272. [PMID: 27982122 PMCID: PMC5159832 DOI: 10.1038/srep39272] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 11/14/2016] [Indexed: 12/20/2022] Open
Abstract
A simple procedure to develop antibacterial surfaces using thiol-capped gold nanoparticles (AuNPs) is shown, which effectively kill bacteria under dark and light conditions. The effect of AuNP size and concentration on photo-activated antibacterial surfaces is reported and we show significant size effects, as well as bactericidal activity with crystal violet (CV) coated polyurethane. These materials have been proven to be powerful antibacterial surfaces against both Gram-positive and Gram-negative bacteria. AuNPs of 2, 3 or 5 nm diameter were swell-encapsulated into PU before a coating of CV was applied (known as PU-AuNPs-CV). The antibacterial activity of PU-AuNPs-CV samples was tested against Staphylococcus aureus and Escherichia coli as representative Gram-positive and Gram-negative bacteria under dark and light conditions. All light conditions in this study simulated a typical white-light hospital environment. This work demonstrates that the antibacterial activity of PU-AuNPs-CV samples and the synergistic enhancement of photoactivity of triarylmethane type dyes is highly dependent on nanoparticle size and concentration. The most powerful PU-AuNPs-CV antibacterial surfaces were achieved using 1.0 mg mL-1 swell encapsulation concentrations of 2 nm AuNPs. After two hours, Gram-positive and Gram-negative bacteria were reduced to below the detection limit (>4 log) under dark and light conditions.
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Affiliation(s)
- Thomas J. Macdonald
- Department of Chemistry, University College London, 20 Gordon St, London, WC1H 0AJ, United Kingdom
| | - Ke Wu
- Department of Chemistry, University College London, 20 Gordon St, London, WC1H 0AJ, United Kingdom
| | - Sandeep K. Sehmi
- Department of Chemistry, University College London, 20 Gordon St, London, WC1H 0AJ, United Kingdom
| | - Sacha Noimark
- Department of Chemistry, University College London, 20 Gordon St, London, WC1H 0AJ, United Kingdom
| | - William J. Peveler
- Department of Chemistry, University College London, 20 Gordon St, London, WC1H 0AJ, United Kingdom
| | - Hendrik du Toit
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, United Kingdom
| | - Nicolas H. Voelcker
- ARC Centre of Excellence for Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes, 5095, Australia
| | - Elaine Allan
- Division of Microbial Diseases, UCL Eastman Dental Institute, University College London, 256 Grays Inn Road, London, WC1X 8LD, United Kingdom
| | - Alexander J. MacRobert
- UCL Division of Surgery and Interventional Science, Royal Free Campus, Rowland Hill Street, London, NW3 2PF, United Kingdom
| | - Asterios Gavriilidis
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, United Kingdom
| | - Ivan P. Parkin
- Department of Chemistry, University College London, 20 Gordon St, London, WC1H 0AJ, United Kingdom
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44
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Sehmi SK, Allan E, MacRobert AJ, Parkin I. The bactericidal activity of glutaraldehyde-impregnated polyurethane. Microbiologyopen 2016; 5:891-897. [PMID: 27255793 PMCID: PMC5061724 DOI: 10.1002/mbo3.378] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/21/2016] [Accepted: 03/30/2016] [Indexed: 11/14/2022] Open
Abstract
Although glutaraldehyde is known to be bactericidal in solution, its potential use to create novel antibacterial polymers suitable for use in healthcare environments has not been evaluated. Here, novel materials were prepared in which glutaraldehyde was either incorporated into polyurethane using a simple "swell-encapsulation-shrink" method (hereafter referred to as "glutaraldehyde-impregnated polyurethane"), or simply applied to the polymer surface (hereafter referred to as "glutaraldehyde-coated polyurethane"). The antibacterial activity of glutaraldehyde-impregnated and glutaraldehyde-coated polyurethane samples was tested against Escherichia coli and Staphylococcus aureus. Glutaraldehyde-impregnated polyurethane resulted in a 99.9% reduction in the numbers of E. coli within 2 h and a similar reduction of S. aureus within 1 h, whereas only a minimal reduction in bacterial numbers was observed when the biocide was bound to the polymer surface. After 15 days, however, the bactericidal activity of the impregnated material was substantially reduced presumably due to polymerization of glutaraldehyde. Thus, although glutaraldehyde retains antibacterial activity when impregnated into polyurethane, activity is not maintained for extended periods of time. Future work should examine the potential of chemical modification of glutaraldehyde and/or polyurethane to improve the useful lifespan of this novel antibacterial polymer.
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Affiliation(s)
- Sandeep K Sehmi
- Department of Chemistry, Materials Chemistry Research Centre, University College London, 20 Gordon Street, London, WC1H 0AJ, United Kingdom
- UCL Division of Surgery and Interventional Science, University College London, Royal Free Campus, Rowland Hill Street, London, NW3 2PF, United Kingdom
- Division of Microbial Disease, UCL Eastman Dental Institute, University College London, 256 Gray's Inn Road, London, WC1X 8LD, United Kingdom
| | - Elaine Allan
- Division of Microbial Disease, UCL Eastman Dental Institute, University College London, 256 Gray's Inn Road, London, WC1X 8LD, United Kingdom
| | - Alexander J MacRobert
- UCL Division of Surgery and Interventional Science, University College London, Royal Free Campus, Rowland Hill Street, London, NW3 2PF, United Kingdom
| | - Ivan Parkin
- Department of Chemistry, Materials Chemistry Research Centre, University College London, 20 Gordon Street, London, WC1H 0AJ, United Kingdom.
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45
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Sehmi S, Noimark S, Pike S, Bear JC, Peveler WJ, Williams CK, Shaffer MSP, Allan E, Parkin IP, MacRobert AJ. Enhancing the Antibacterial Activity of Light-Activated Surfaces Containing Crystal Violet and ZnO Nanoparticles: Investigation of Nanoparticle Size, Capping Ligand, and Dopants. ACS OMEGA 2016; 1:334-343. [PMID: 27840856 PMCID: PMC5098237 DOI: 10.1021/acsomega.6b00017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 08/23/2016] [Indexed: 05/19/2023]
Abstract
Healthcare-associated infections pose a serious risk for patients, staff, and visitors and are a severe burden on the National Health Service, costing at least £1 billion annually. Antimicrobial surfaces significantly contribute toward reducing the incidence of infections as they prevent bacterial adhesion and cause bacterial cell death. Using a simple, easily upscalable swell-encapsulation-shrink method, novel antimicrobial surfaces have been developed by incorporating metal oxide nanoparticles (NPs) and crystal violet (CV) dye into medical-grade polyurethane sheets. This study compares the bactericidal effects of polyurethane incorporating ZnO, Mg-doped ZnO, and MgO. All metal oxide NPs are well defined, with average diameters ranging from 2 to 18 nm. These materials demonstrate potent bactericidal activity when tested against clinically relevant bacteria such as Escherichia coli and Staphylococcus aureus. Additionally, these composites are tested against an epidemic strain of methicillin-resistant Staphylococcus aureus (MRSA) that is rife in hospitals throughout the UK. Furthermore, we have tested these materials using a low light intensity (∼500 lx), similar to that present in many clinical environments. The highest activity is achieved from polymer composites incorporating CV and ∼3 nm ZnO NPs, and the different performances of the metal oxides have been discussed.
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Affiliation(s)
- Sandeep
K. Sehmi
- UCL
Division of Surgery and Interventional Science, University College London, Royal Free Campus, Rowland Hill Street, London NW3 2PF, U.K.
- Materials
Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
- Division
of Microbial Disease, UCL Eastman Dental Institute, University College London, 256 Gray’s Inn Road, London WC1X 8LD, U.K.
| | - Sacha Noimark
- Department
of Medical Physics and Biomedical Engineering, University College London, Gower Street, London WC1E
6BT, U.K.
| | - Sebastian
D. Pike
- Department
of Chemistry, Imperial College London, Imperial College Road, London SW7 2AZ, U.K.
| | - Joseph C. Bear
- Materials
Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - William J. Peveler
- Materials
Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Charlotte K. Williams
- Department
of Chemistry, Imperial College London, Imperial College Road, London SW7 2AZ, U.K.
| | - Milo S. P. Shaffer
- Department
of Chemistry, Imperial College London, Imperial College Road, London SW7 2AZ, U.K.
| | - Elaine Allan
- Division
of Microbial Disease, UCL Eastman Dental Institute, University College London, 256 Gray’s Inn Road, London WC1X 8LD, U.K.
| | - Ivan P. Parkin
- Materials
Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Alexander J. MacRobert
- UCL
Division of Surgery and Interventional Science, University College London, Royal Free Campus, Rowland Hill Street, London NW3 2PF, U.K.
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46
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Wo Y, Brisbois EJ, Bartlett RH, Meyerhoff ME. Recent advances in thromboresistant and antimicrobial polymers for biomedical applications: just say yes to nitric oxide (NO). Biomater Sci 2016; 4:1161-83. [PMID: 27226170 PMCID: PMC4955746 DOI: 10.1039/c6bm00271d] [Citation(s) in RCA: 170] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Biomedical devices are essential for patient diagnosis and treatment; however, when blood comes in contact with foreign surfaces or homeostasis is disrupted, complications including thrombus formation and bacterial infections can interrupt device functionality, causing false readings and/or shorten device lifetime. Here, we review some of the current approaches for developing antithrombotic and antibacterial materials for biomedical applications. Special emphasis is given to materials that release or generate low levels of nitric oxide (NO). Nitric oxide is an endogenous gas molecule that can inhibit platelet activation as well as bacterial proliferation and adhesion. Various NO delivery vehicles have been developed to improve NO's therapeutic potential. In this review, we provide a summary of the NO releasing and NO generating polymeric materials developed to date, with a focus on the chemistry of different NO donors, the polymer preparation processes, and in vitro and in vivo applications of the two most promising types of NO donors studied thus far, N-diazeniumdiolates (NONOates) and S-nitrosothiols (RSNOs).
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Affiliation(s)
- Yaqi Wo
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.
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47
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Shao W, Wang S, Wu J, Huang M, Liu H, Min H. Synthesis and antimicrobial activity of copper nanoparticle loaded regenerated bacterial cellulose membranes. RSC Adv 2016. [DOI: 10.1039/c6ra07984a] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of copper nanoparticle (CuNP) loaded regenerated bacterial cellulose (RC) membranes were fabricated.
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Affiliation(s)
- Wei Shao
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Shuxia Wang
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Jimin Wu
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Min Huang
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Hui Liu
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Huihua Min
- Advanced Analysis and Testing Center
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
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48
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Ponja SD, Sehmi SK, Allan E, MacRobert AJ, Parkin IP, Carmalt CJ. Enhanced Bactericidal Activity of Silver Thin Films Deposited via Aerosol-Assisted Chemical Vapor Deposition. ACS APPLIED MATERIALS & INTERFACES 2015; 7:28616-28623. [PMID: 26632854 DOI: 10.1021/acsami.5b10171] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Silver thin films were deposited on SiO2-barrier-coated float glass, fluorine-doped tin oxide (FTO) glass, Activ glass, and TiO2-coated float glass via AACVD using silver nitrate at 350 °C. The films were annealed at 600 °C and analyzed by X-ray powder diffraction, X-ray photoelectron spectroscopy, UV/vis/near-IR spectroscopy, and scanning electron microscopy. All the films were crystalline, and the silver was present in its elemental form and of nanometer dimension. The antibacterial activity of these samples was tested against Escherichia coli and Staphylococcus aureus in the dark and under UV light (365 nm). All Ag-deposited films reduced the numbers of E. coli by 99.9% within 6 h and the numbers of S. aureus by 99.9% within only 2 h. FTO/Ag reduced bacterial numbers of E. coli to below the detection limit after 60 min and caused a 99.9% reduction of S. aureus within only 15 min of UV irradiation. Activ/Ag reduced the numbers of S. aureus by 66.6% after 60 min and TiO2/Ag killed 99.9% of S. aureus within 60 min of UV exposure. More remarkably, we observed a 99.9% reduction in the numbers of E. coli within 6 h and the numbers of S. aureus within 4 h in the dark using our novel TiO2/Ag system.
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Affiliation(s)
- Sapna D Ponja
- Materials Chemistry Research Centre, Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Sandeep K Sehmi
- Materials Chemistry Research Centre, Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, United Kingdom
- UCL Division of Surgery and Interventional Science, University College London , 67-73 Riding House Street, London W1 W7EJ, United Kingdom
- Division of Microbial Disease, UCL Eastman Dental Institute, University College London , 256 Gray's Inn Road, London WC1X 8LD, United Kingdom
| | - Elaine Allan
- Division of Microbial Disease, UCL Eastman Dental Institute, University College London , 256 Gray's Inn Road, London WC1X 8LD, United Kingdom
| | - Alexander J MacRobert
- UCL Division of Surgery and Interventional Science, University College London , 67-73 Riding House Street, London W1 W7EJ, United Kingdom
| | - Ivan P Parkin
- Materials Chemistry Research Centre, Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Claire J Carmalt
- Materials Chemistry Research Centre, Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, United Kingdom
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