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Bento de Carvalho T, Barbosa JB, Teixeira P. Assessing Antimicrobial Efficacy on Plastics and Other Non-Porous Surfaces: A Closer Look at Studies Using the ISO 22196:2011 Standard. BIOLOGY 2024; 13:59. [PMID: 38275735 PMCID: PMC10813364 DOI: 10.3390/biology13010059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024]
Abstract
The survival and spread of foodborne and nosocomial-associated bacteria through high-touch surfaces or contamination-prone sites, in either healthcare, domestic or food industry settings, are not always prevented by the employment of sanitary hygiene protocols. Antimicrobial surface coatings have emerged as a solution to eradicate pathogenic bacteria and prevent future infections and even outbreaks. Standardised antimicrobial testing methods play a crucial role in validating the effectiveness of these materials and enabling their application in real-life settings, providing reliable results that allow for comparison between antimicrobial surfaces while assuring end-use product safety. This review provides an insight into the studies using ISO 22196, which is considered the gold standard for antimicrobial surface coatings and examines the current state of the art in antimicrobial testing methods. It primarily focuses on identifying pitfalls and how even small variations in methods can lead to different results, affecting the assessment of the antimicrobial activity of a particular product.
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Affiliation(s)
| | - Joana Bastos Barbosa
- Universidade Católica Portuguesa, Laboratório Associado, CBQF—Centro de Biotecnologia e Química Fina, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (T.B.d.C.); (P.T.)
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Chruściel JJ, Olczyk J, Kudzin MH, Kaczmarek P, Król P, Tarzyńska N. Antibacterial and Antifungal Properties of Polyester, Polylactide, and Cotton Nonwovens and Fabrics, by Means of Stable Aqueous Dispersions Containing Copper Silicate and Some Metal Oxides. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5647. [PMID: 37629939 PMCID: PMC10456794 DOI: 10.3390/ma16165647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/04/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023]
Abstract
Literature reviews have described the applications of silver, copper, and zinc ions and metallic particles of Cu, Ti, and Zn oxides, which have been found to be useful antimicrobial reagents for the biofunctionalization of various materials and their surfaces. For this purpose, compositions of water dispersions containing emulsions of synthetic copolymers based on acrylic and vinyl monomers, polysaccharides (hydroxyethyl cellulose and starch), and various additives with wetting and stabilizing properties were used. Many stable water dispersions of different chemical compositions containing bioactive chemical compounds (copper silicate hydrate, titanium dioxide, and zinc oxide (and other auxiliary substances)) were developed. They were used for the preparation of thin hybrid coatings having good antimicrobial properties against Gram-negative bacteria (Escherichia coli), Gram-positive bacteria (Staphylococcus aureus), and yeast fungus (Candida albicans). Polyester (PES) and polylactide (PLA) nonwovens were modified using the dip-coating method, while PES and cotton fabrics were biofunctionalized by means of dip-coating and coating methods. The antimicrobial (antibacterial and antifungal) properties of the textile materials (nonwovens and fabrics) biofunctionalized with the above-mentioned bioactive agents exhibiting antimicrobial properties (CuSiO3, TiO2, ZnO, or ZnO∙SiO2) were strongly dependent on the agents' content in the water dispersions. The PES and PLA nonwovens, modified on the surface with water compositions containing copper silicate hydrate, showed good antibacterial properties against the Gram-negative bacteria Escherichia coli, even at a content of 1 wt.% CuSiO3∙xH2O, and against the Gram-positive bacteria Staphylococcus aureus, at the content of at least 5 wt.% CuSiO3∙xH2O. The bacterial growth reduction factor (R) was greater than 99% for most of the samples tested. Good antifungal properties against the fungus Candida albicans were found for the PES and PLA nonwoven fabrics modified with dispersions containing 5-7 wt.% CuSiO3∙xH2O and 4.2-5.0 wt.% TiO2. The addition of TiO2 led to a significant improvement in the antifungal properties of the PES and PLA nonwovens modified in this way. For the samples of PES WIFP-270 and FS F-5 nonwovens, modified with water dispersions containing 5.0 wt.% CuSiO3∙xH2O and 4.2-5.0 wt.% TiO2, the growth reduction factor for the fungus Candida albicans (R) reached values in the range of 80.9-98.0%. These new biofunctionalized polymeric nonwoven textile materials can find practical applications in the manufacture of filters for hospital air-conditioning systems and for the automotive industry, as well as in air purification devices. Moreover, similar antimicrobial modification of fabrics with the dip-coating or coating methods can be applied, for example, in the fabrication of fungi- and mold-resistant garden furniture.
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Affiliation(s)
- Jerzy J. Chruściel
- Łukasiewicz Research Network—Lodz Institute of Technology, Brzezińska 5/15, 92-103 Łódź, Poland; (J.O.); (M.H.K.); (P.K.); (P.K.); (N.T.)
- Circular Economy Center (BCG), Environmental Protection Engineering Research Group, Brzezińska 5/15, 92-103 Łódź, Poland
| | - Joanna Olczyk
- Łukasiewicz Research Network—Lodz Institute of Technology, Brzezińska 5/15, 92-103 Łódź, Poland; (J.O.); (M.H.K.); (P.K.); (P.K.); (N.T.)
- Circular Economy Center (BCG), Environmental Protection Engineering Research Group, Brzezińska 5/15, 92-103 Łódź, Poland
| | - Marcin H. Kudzin
- Łukasiewicz Research Network—Lodz Institute of Technology, Brzezińska 5/15, 92-103 Łódź, Poland; (J.O.); (M.H.K.); (P.K.); (P.K.); (N.T.)
- Circular Economy Center (BCG), Environmental Protection Engineering Research Group, Brzezińska 5/15, 92-103 Łódź, Poland
| | - Piotr Kaczmarek
- Łukasiewicz Research Network—Lodz Institute of Technology, Brzezińska 5/15, 92-103 Łódź, Poland; (J.O.); (M.H.K.); (P.K.); (P.K.); (N.T.)
- Biodegradation and Microbiological Research Laboratory, Brzezińska 5/15, 92-103 Łódź, Poland
| | - Paulina Król
- Łukasiewicz Research Network—Lodz Institute of Technology, Brzezińska 5/15, 92-103 Łódź, Poland; (J.O.); (M.H.K.); (P.K.); (P.K.); (N.T.)
- Biomedical Engineering Center, Marii Skłodowskiej-Curie 19/27, 90-570 Łódź, Poland
| | - Nina Tarzyńska
- Łukasiewicz Research Network—Lodz Institute of Technology, Brzezińska 5/15, 92-103 Łódź, Poland; (J.O.); (M.H.K.); (P.K.); (P.K.); (N.T.)
- Biomedical Engineering Center, Marii Skłodowskiej-Curie 19/27, 90-570 Łódź, Poland
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3
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Yang X, Yu Q, Gao W, Tang X, Yi H, Tang X. The mechanism of metal-based antibacterial materials and the progress of food packaging applications: A review. CERAMICS INTERNATIONAL 2022; 48:34148-34168. [PMID: 36059853 PMCID: PMC9419445 DOI: 10.1016/j.ceramint.2022.08.249] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/10/2022] [Accepted: 08/23/2022] [Indexed: 05/13/2023]
Abstract
Food packages have been detected carrying novel coronavirus in multi-locations since the outbreak of COVID-19, causing major concern in the field of food safety. Metal-based supported materials are widely used for sterilization due to their excellent antibacterial properties as well as low biological resistance. As the principal part of antibacterial materials, the active component, commonly referred to Ag, Cu, Zn, etc., plays the main role in inhibiting and killing pathogenic microorganisms by destroying the structure of cells. As another composition of metal-based antibacterial materials, the carrier could support and disperse the active component, which on one hand, could effectively decrease the usage amount of active component, on the other hand, could be processed into various forms to broaden the application range of antibacterial materials. Different from other metal-based antibacterial reviews, in order to highlight the detailed function of various carriers, we divided the carriers into biocompatible and adsorptable types and discussed their different antibacterial effects. Moreover, a novel substitution antibacterial mechanism was proposed. The coating and shaping techniques of metal-based antibacterial materials as well as their applications in food storage at ambient and low temperatures are also comprehensively summarized. This review aims to provide a theoretical basis and reference for researchers in this field to develop new metal-based antibacterial materials.
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Affiliation(s)
- Xiaotong Yang
- Department of Environmental Science and Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qingjun Yu
- Department of Environmental Science and Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China
| | - Wei Gao
- Department of Environmental Science and Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiaoning Tang
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Honghong Yi
- Department of Environmental Science and Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China
| | - Xiaolong Tang
- Department of Environmental Science and Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China
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4
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Bisht N, Dwivedi N, Kumar P, Venkatesh M, Yadav AK, Mishra D, Solanki P, Verma NK, Lakshminarayanan R, Ramakrishna S, Mondal DP, Srivastava AK, Dhand C. Recent Advances in Copper and Copper-Derived Materials for Antimicrobial Resistance and Infection Control. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2022; 24:100408. [PMID: 36033159 PMCID: PMC9395285 DOI: 10.1016/j.cobme.2022.100408] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/30/2022] [Accepted: 08/02/2022] [Indexed: 11/28/2022]
Abstract
Antibacterial properties of copper have been known for ages. With the rise of antimicrobial resistance (AMR), hospital-acquired infections, and the current SARS-CoV-2 pandemic, copper and copper-derived materials are being widely researched for healthcare ranging from therapeutics to advanced wound dressing to medical devices. We cover current research that highlights the potential uses of metallic and ionic copper, copper alloys, copper nanostructures, and copper composites as antibacterial, antifungal, and antiviral agents, including those against the SARS-CoV-2 virus. The applications of copper-enabled engineered materials in medical devices, wound dressings, personal protective equipment, and self-cleaning surfaces are discussed. We emphasize the potential of copper and copper-derived materials in combating AMR and efficiently reducing infections in clinical settings.
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Affiliation(s)
- Neha Bisht
- CSIR-Advanced Materials and Processes Research Institute (CSIR-AMPRI), Bhopal 462026, MP, India
| | - Neeraj Dwivedi
- CSIR-Advanced Materials and Processes Research Institute (CSIR-AMPRI), Bhopal 462026, MP, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pradip Kumar
- CSIR-Advanced Materials and Processes Research Institute (CSIR-AMPRI), Bhopal 462026, MP, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mayandi Venkatesh
- Ocular Infections & Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, 169856, Singapore
| | - Amit K Yadav
- Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi 110067, India
| | - Deepti Mishra
- CSIR-Advanced Materials and Processes Research Institute (CSIR-AMPRI), Bhopal 462026, MP, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pratima Solanki
- Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi 110067, India
| | - Navin Kumar Verma
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, 11 Mandalay Road, 308232, Singapore.,National Skin Centre, 1 Mandalay Road, 308205, Singapore
| | - Rajamani Lakshminarayanan
- Ocular Infections & Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, 169856, Singapore.,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, 169857, Singapore
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, Faculty of Engineering, 2 Engineering Drive 3, National University of Singapore, Singapore, 117576, Singapore
| | - D P Mondal
- CSIR-Advanced Materials and Processes Research Institute (CSIR-AMPRI), Bhopal 462026, MP, India
| | - Avanish Kumar Srivastava
- CSIR-Advanced Materials and Processes Research Institute (CSIR-AMPRI), Bhopal 462026, MP, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Chetna Dhand
- CSIR-Advanced Materials and Processes Research Institute (CSIR-AMPRI), Bhopal 462026, MP, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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5
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Seo B, Kanematsu H, Nakamoto M, Miyabayashi Y, Tanaka T. Copper Surface Treatment Method with Antibacterial Performance Using "Super-Spread Wetting" Properties. MATERIALS 2022; 15:ma15010392. [PMID: 35009540 PMCID: PMC8746668 DOI: 10.3390/ma15010392] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/30/2021] [Accepted: 01/03/2022] [Indexed: 02/04/2023]
Abstract
In this work, a copper coating is developed on a carbon steel substrate by exploiting the superwetting properties of liquid copper. We characterize the surface morphology, chemical composition, roughness, wettability, ability to release a copper ion from surfaces, and antibacterial efficacy (against Escherichia coli and Staphylococcus aureus). The coating shows a dense microstructure and good adhesion, with thicknesses of approximately 20–40 µm. X-ray diffraction (XRD) analysis reveals that the coated surface structure is composed of Cu, Cu2O, and CuO. The surface roughness and contact angle measurements suggest that the copper coating is rougher and more hydrophobic than the substrate. Inductively coupled plasma atomic emission spectroscopy (ICP-AES) measurements reveal a dissolution of copper ions in chloride-containing environments. The antibacterial test shows that the copper coating achieves a 99.99% reduction of E. coli and S. aureus. This study suggests that the characteristics of the copper-coated surface, including the chemical composition, high surface roughness, good wettability, and ability for copper ion release, may result in surfaces with antibacterial properties.
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Affiliation(s)
- Beomdeok Seo
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita 565-0871, Osaka, Japan; (M.N.); (T.T.)
- Correspondence:
| | - Hideyuki Kanematsu
- Department of Materials Science and Engineering, National Institute of Technology (KOSEN), Suzuka College, Suzuka 510-0294, Mie, Japan;
| | - Masashi Nakamoto
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita 565-0871, Osaka, Japan; (M.N.); (T.T.)
| | - Yoshitsugu Miyabayashi
- Graduate School of Engineering, Osaka University, 2-8 Yamadaoka, Suita 565-0871, Osaka, Japan;
| | - Toshihiro Tanaka
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita 565-0871, Osaka, Japan; (M.N.); (T.T.)
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6
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Coating Technologies for Copper Based Antimicrobial Active Surfaces: A Perspective Review. METALS 2021. [DOI: 10.3390/met11050711] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Microbial contamination of medical devices and treatment rooms leads to several detrimental hospital and device-associated infections. Antimicrobial copper coatings are a new approach to control healthcare-associated infections (HAI’s). This review paper focuses on the efficient methods for depositing highly adherent copper-based antimicrobial coatings onto a variety of metal surfaces. Antimicrobial properties of the copper coatings produced by various deposition methods including thermal spray technique, electrodeposition, electroless plating, chemical vapor deposition (CVD), physical vapor deposition (PVD), and sputtering techniques are compared. The coating produced using different processes did not produce similar properties. Also, process parameters often could be varied for any given coating process to impart a change in structure, topography, wettability, hardness, surface roughness, and adhesion strength. In turn, all of them affect antimicrobial activity. Fundamental concepts of the coating process are described in detail by highlighting the influence of process parameters to increase antimicrobial activity. The strategies for developing antimicrobial surfaces could help in understanding the mechanism of killing the microbes.
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7
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Fabrication and Characterization of Antimicrobial Magnetron Cosputtered TiO2/Ag/Cu Composite Coatings. COATINGS 2021. [DOI: 10.3390/coatings11040473] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of this study was to prepare TiO2/Ag/Cu magnetron co-sputtered coatings with controlled characteristics and to correlate them with the antimicrobial activity of the coated glass samples. The elemental composition and distribution, surface morphology, wettability, surface energy and its component were estimated as the surface characteristics influencing the bioadhesion. Well expressed, specific, Ag/Cu concentration-dependent antimicrobial activity in vitro was demonstrated toward Gram-negative and Gram-positive standard test bacterial strains both by diffusion 21 assay and by Most Probable Number of surviving cells. Direct contact and eluted silver/coper nanoparticles killing were experimentally demonstrated as a mode of the antimicrobial action of the studied TiO2/Ag/Cu thin composite coatings. It is expected that they would ensure a broad spectrum bactericidal activity during the indwelling of the coated medical devices and for at least 12 h after that, with the supposition that the benefits will be over a longer time.
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Olczyk J, Sójka-Ledakowicz J, Walawska A, Antecka A, Siwińska-Ciesielczyk K, Zdarta J, Jesionowski T. Antimicrobial Activity and Barrier Properties against UV Radiation of Alkaline and Enzymatically Treated Linen Woven Fabrics Coated with Inorganic Hybrid Material. Molecules 2020; 25:molecules25235701. [PMID: 33287209 PMCID: PMC7729559 DOI: 10.3390/molecules25235701] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 11/29/2020] [Accepted: 12/01/2020] [Indexed: 11/16/2022] Open
Abstract
One of the directions of development in the textiles industry is the search for new technologies for producing modern multifunctional products. New solutions are sought to obtain materials that will protect humans against the harmful effects of the environment, including such factors as the activity of microorganisms and UV radiation. Products made of natural cellulose fibers are often used. In the case of this type of material, it is very important to perform appropriate pretreatment before subsequent technological processes. This treatment has the aim of removing impurities from the surface of the fibers, which results in the improvement of sorption properties and adhesion, leading directly to the better penetration of dyes and chemical modifiers into the structure of the materials. In this work, linen fabrics were subjected to a new, innovative treatment being a combination of bio-pretreatment using laccase from Cerrena unicolor and modification with CuO-SiO2 hybrid oxide microparticles by a dip-coating method. To compare the effect of alkaline or enzymatic pretreatment on the microstructure of the linen woven fabrics, SEM analysis was performed. The new textile products obtained after this combined process exhibit very good antimicrobial activity against Candida albicans, significant antibacterial activity against the Gram-negative Escherichia coli and the Gram-positive Staphylococcus aureus, as well as very good UV protection properties (ultraviolet protection factor (UPF) > 40). These innovative materials can be used especially for clothing or outdoor textiles for which resistance to microorganisms is required, as well as to protect people who are exposed to long-term, harmful effects of UV radiation.
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Affiliation(s)
- Joanna Olczyk
- The Lukasiewicz Research Network—Textile Research Institute, Brzezinska 5/15, PL-92103 Lodz, Poland; (J.S.-L.); (A.W.)
- Correspondence: ; Tel.: +48-4261-63-116
| | - Jadwiga Sójka-Ledakowicz
- The Lukasiewicz Research Network—Textile Research Institute, Brzezinska 5/15, PL-92103 Lodz, Poland; (J.S.-L.); (A.W.)
| | - Anetta Walawska
- The Lukasiewicz Research Network—Textile Research Institute, Brzezinska 5/15, PL-92103 Lodz, Poland; (J.S.-L.); (A.W.)
| | - Anna Antecka
- Faculty of Process and Environmental Engineering, Department of Bioprocess Engineering, Lodz University of Technology, Wolczanska 213, PL-90924 Lodz, Poland;
| | - Katarzyna Siwińska-Ciesielczyk
- Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland; (K.S.-C.); (J.Z.); (T.J.)
| | - Jakub Zdarta
- Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland; (K.S.-C.); (J.Z.); (T.J.)
| | - Teofil Jesionowski
- Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland; (K.S.-C.); (J.Z.); (T.J.)
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9
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Abstract
At the biointerface where materials and microorganisms meet, the organic and synthetic worlds merge into a new science that directs the design and safe use of synthetic materials for biological applications. Vapor deposition techniques provide an effective way to control the material properties of these biointerfaces with molecular-level precision that is important for biomaterials to interface with bacteria. In recent years, biointerface research that focuses on bacteria-surface interactions has been primarily driven by the goals of killing bacteria (antimicrobial) and fouling prevention (antifouling). Nevertheless, vapor deposition techniques have the potential to create biointerfaces with features that can manipulate and dictate the behavior of bacteria rather than killing or deterring them. In this review, we focus on recent advances in antimicrobial and antifouling biointerfaces produced through vapor deposition and provide an outlook on opportunities to capitalize on the features of these techniques to find unexplored connections between surface features and microbial behavior.
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Affiliation(s)
- Trevor B. Donadt
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Rong Yang
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
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10
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Saharudin KA, Sreekantan S, Mydin RBSMN, Aziz SNQAA, Govindasamy GA. Nano TiO2 for Biomedical Applications. NANOTECHNOLOGY: APPLICATIONS IN ENERGY, DRUG AND FOOD 2019:267-281. [DOI: 10.1007/978-3-319-99602-8_13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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11
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Saharudin KA, Sreekantan S, Basiron N, Khor YL, Harun NH, S M N Mydin RB, Md Akil H, Seeni A, Vignesh K. Bacteriostatic Activity of LLDPE Nanocomposite Embedded with Sol⁻Gel Synthesized TiO₂/ZnO Coupled Oxides at Various Ratios. Polymers (Basel) 2018; 10:E878. [PMID: 30960803 PMCID: PMC6403739 DOI: 10.3390/polym10080878] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 02/05/2023] Open
Abstract
Metal oxide-polymer nanocomposite has been proven to have selective bactericidal effects against the main and common pathogens (Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli)) that can cause harmful infectious diseases. As such, this study looked into the prospect of using TiO₂/ZnO with linear low-density polyethylene (LLDPE) to inactivate S. aureus and E. coli. The physical, structural, chemical, mechanical, and antibacterial properties of the nanocomposite were investigated in detail in this paper. The production of reactive species, such as hydroxyl radicals (•OH), holes (h⁺), superoxide anion radicals (O₂•¯), and zinc ion (Zn2+), released from the nanocomposite were quantified to elucidate the underlying antibacterial mechanisms. LLDPE/25T75Z with TiO₂/ZnO (1:3) nanocomposite displayed the best performance that inactivated S. aureus and E. coli by 95% and 100%, respectively. The dominant reactive active species and the zinc ion release toward the superior antibacterial effect of nanocomposite are discussed. This work does not only offer depiction of the effective element required for antimicrobial biomedical appliances, but also the essential structural characteristics to enhance water uptake to expedite photocatalytic activity of LLDPE/metal oxide nanocomposite for long term application.
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Affiliation(s)
- Khairul Arifah Saharudin
- School of Materials & Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang 14300, Malaysia.
| | - Srimala Sreekantan
- School of Materials & Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang 14300, Malaysia.
| | - Norfatehah Basiron
- School of Materials & Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang 14300, Malaysia.
| | - Yong Ling Khor
- School of Materials & Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang 14300, Malaysia.
| | - Nor Hazliana Harun
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Pulau Pinang 13200, Malaysia.
| | | | - Hazizan Md Akil
- School of Materials & Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang 14300, Malaysia.
| | - Azman Seeni
- Malaysian Institute of Pharmaceuticals and Nutraceuticals (IPHARM), National Institute of Biotechnology Malaysia, Ministry of Science, Technology and Innovation, Bukit Gambir, Gelugor, Pulau Pinang 11700, Malaysia.
| | - Kumaravel Vignesh
- Department of Environmental Science, School of Science, Institute of Technology Sligo, Ash Lane, F91 YW50 Sligo, Ireland.
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12
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Wiegand C, Völpel A, Ewald A, Remesch M, Kuever J, Bauer J, Griesheim S, Hauser C, Thielmann J, Tonndorf-Martini S, Sigusch BW, Weisser J, Wyrwa R, Elsner P, Hipler UC, Roth M, Dewald C, Lüdecke-Beyer C, Bossert J. Critical physiological factors influencing the outcome of antimicrobial testing according to ISO 22196 / JIS Z 2801. PLoS One 2018; 13:e0194339. [PMID: 29558480 PMCID: PMC5860763 DOI: 10.1371/journal.pone.0194339] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 03/01/2018] [Indexed: 12/12/2022] Open
Abstract
Bactericidal materials gained interest in the health care sector as they are capable of preventing material surfaces from microbial colonization and subsequent spread of infections. However, commercialization of antimicrobial materials requires proof of their efficacy, which is usually done using in vitro methods. The ISO 22196 standard (Japanese test method JIS Z 2801) is a method for measuring the antibacterial activity of daily goods. As it was found reliable for testing the biocidal activity of antimicrobially active materials and surface coatings most of the laboratories participating in this study used this protocol. Therefore, a round robin test for evaluating antimicrobially active biomaterials had to be established. To our knowledge, this is the first report on inaugurating a round robin test for the ISO 22196 / JIS Z 2801. The first round of testing showed that analyses in the different laboratories yielded different results, especially for materials with intermediate antibacterial effects distinctly different efficacies were noted. Scrutinizing the protocols used by the different participants and identifying the factors influencing the test outcomes the approach was unified. Four critical factors influencing the outcome of antibacterial testing were identified in a series of experiments: (1) incubation time, (2) bacteria starting concentration, (3) physiological state of bacteria (stationary or exponential phase of growth), and (4) nutrient concentration. To our knowledge, this is the first time these parameters have been analyzed for their effect on the outcome of testing according to ISO 22196 / JIS Z 2801. In conclusion, to enable assessment of the results obtained it is necessary to evaluate these single parameters in the test protocol carefully. Furthermore, uniform and robust definitions of the terms antibacterial efficacy / activity, bacteriostatic effects, and bactericidal action need to be agreed upon to simplify communication of results and also regulate expectations regarding antimicrobial tests, outcomes, and materials.
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Affiliation(s)
- Cornelia Wiegand
- Klinik für Hautkrankheiten, Universitätsklinikum Jena, Jena, Germany
- * E-mail:
| | - Andrea Völpel
- Poliklinik für Konservierende Zahnheilkunde und Parodontologie, Universitätsklinikum Jena, Jena, Germany
| | - Andrea Ewald
- Lehrstuhl für Funktionswerkstoffe der Medizin und Zahnheilkunde, Universitätsklinikum Würzburg, Würzburg, Germany
| | - Markko Remesch
- Amtliche Materialprüfungsanstalt (MPA), Abteilung Mikrobiologie, Bremen, Germany
| | - Jan Kuever
- Amtliche Materialprüfungsanstalt (MPA), Abteilung Mikrobiologie, Bremen, Germany
| | - Janine Bauer
- Thüringisches Institut für Textil- und Kunststoff-Forschung e.V., Rudolstadt, Germany
| | - Stefanie Griesheim
- Thüringisches Institut für Textil- und Kunststoff-Forschung e.V., Rudolstadt, Germany
| | - Carolin Hauser
- Fraunhofer-Institut für Verfahrenstechnik und Verpackung IVV, Freising, Germany
| | - Julian Thielmann
- Fraunhofer-Institut für Verfahrenstechnik und Verpackung IVV, Freising, Germany
| | - Silke Tonndorf-Martini
- Poliklinik für Konservierende Zahnheilkunde und Parodontologie, Universitätsklinikum Jena, Jena, Germany
| | - Bernd W. Sigusch
- Poliklinik für Konservierende Zahnheilkunde und Parodontologie, Universitätsklinikum Jena, Jena, Germany
| | | | - Ralf Wyrwa
- INNOVENT e.V., Bereich Biomaterialien, Jena, Germany
| | - Peter Elsner
- Klinik für Hautkrankheiten, Universitätsklinikum Jena, Jena, Germany
| | | | - Martin Roth
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Bio Pilot Plant, Jena, Germany
| | - Carolin Dewald
- Lehrstuhl für Materialwissenschaft, Otto-Schott-Institut für Materialforschung, Jena, Germany
| | - Claudia Lüdecke-Beyer
- Lehrstuhl für Materialwissenschaft, Otto-Schott-Institut für Materialforschung, Jena, Germany
| | - Jörg Bossert
- Lehrstuhl für Materialwissenschaft, Otto-Schott-Institut für Materialforschung, Jena, Germany
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Vincent M, Hartemann P, Engels-Deutsch M. Antimicrobial applications of copper. Int J Hyg Environ Health 2016; 219:585-591. [PMID: 27318723 DOI: 10.1016/j.ijheh.2016.06.003] [Citation(s) in RCA: 144] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 05/16/2016] [Accepted: 06/02/2016] [Indexed: 01/23/2023]
Abstract
Copper has long been known to have antimicrobial activity and is used in drinking water treatment and transportation. It has been recognized by the American Environmental Protection Agency as the first metallic antimicrobial agent in 2008. With ongoing waterborne hospital-acquired infections and antibiotic resistance, research on copper as an antimicrobial agent is again very attractive. Many studies have shown that the use of copper surface and copper particles could significantly reduce the environmental bioburden. This review highlights in its first part all the conditions described in the literature to enhance copper antimicrobial activity. Secondly, the different antimicrobial applications of copper in water treatment, hospital care units and public applications are presented. Finally, the future research needs on copper as an antimicrobial agent are discussed.
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Affiliation(s)
- Marin Vincent
- CNRS, LEMTA, UMR 7563, Vandœuvre-lès-Nancy F-54500, France; Université de Lorraine, LEMTA, UMR 7563, Vandœuvre-lès-Nancy F-54500, France
| | - Philippe Hartemann
- Université de Lorraine, DESP, Faculté de Médecine, INSERM EA 7298, Vandœuvre-lès-Nancy F-54500, France
| | - Marc Engels-Deutsch
- CNRS, LEMTA, UMR 7563, Vandœuvre-lès-Nancy F-54500, France; Université de Lorraine, LEMTA, UMR 7563, Vandœuvre-lès-Nancy F-54500, France; Université de Lorraine, DESP, Faculté de Médecine, INSERM EA 7298, Vandœuvre-lès-Nancy F-54500, France.
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14
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Eser OK, Ergin A, Hascelik G. Antimicrobial Activity of Copper Alloys Against Invasive Multidrug-Resistant Nosocomial Pathogens. Curr Microbiol 2015; 71:291-5. [PMID: 26044991 DOI: 10.1007/s00284-015-0840-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 04/18/2015] [Indexed: 02/04/2023]
Abstract
The emergence and spread of antibiotic resistance demanded novel approaches for the prevention of nosocomial infections, and metallic copper surfaces have been suggested as an alternative for the control of multidrug-resistant (MDR) bacteria in surfaces in the hospital environment. This study aimed to evaluate the antimicrobial activity of copper material for invasive MDR nosocomial pathogens isolated over time, in comparison to stainless steel. Clinical isolates of methicillin-resistant Staphylococcus aureus (MRSA) (n:4), OXA-23 and OXA-58 positive, MDR Acinetobacter baumannii (n:6) and Pseudomonas aeruginosa (n:4) were evaluated. The antimicrobial activity of coupons containing 99 % copper and a brass alloy containing 63 % copper was assessed against stainless steel. All the materials demonstrated statistically significant differences within each other for the logarithmic reduction of microorganisms. Among the three materials, the highest reduction of microorganisms was seen in 99 % copper and the least in stainless steel. The result was statistically significant especially for 0, 2, and 4 h (P = 0.05). 99 % copper showed a bactericidal effect at less than 1 h for MRSA and at 2 h for P. aeruginosa. 63 % copper showed a bactericidal effect at 24 h for P. aeruginosa strains only. Stainless steel surfaces exhibited a bacteriostatic effect after 6 h for P. aeruginosa strains only. 99 % copper reduced the number of bacteria used significantly, produced a bactericidal effect and was more effective than 63 % copper. The use of metallic copper material could aid in reducing the concentration of bacteria, especially for invasive nosocomial pathogens on hard surfaces in the hospital environment.
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Affiliation(s)
- Ozgen Koseoglu Eser
- Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey,
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15
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Song T, Yan M, Shi Z, Atrens A, Qian M. Creation of bimodal porous copper materials by an annealing-electrochemical dealloying approach. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.02.217] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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