A novel methodology to study antimicrobial properties of high-touch surfaces used for indoor hygiene applications-A study on Cu metal
Metal-based high-touch surfaces used for indoor applications such as doorknobs, light switches, handles and desks need to remain their antimicrobial properties even when tarnished or degraded. A novel laboratory methodology of relevance for indoor atmospheric conditions and fingerprint contact has t...
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| Veröffentlicht in: | PloS one 2021-02, Vol.16 (2), p.e0247081-e0247081 |
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| creator | Chang, T Sepati, M Herting, G Leygraf, C Rajarao, G Kuttuva Butina, K Richter-Dahlfors, A Blomberg, E Odnevall Wallinder, I |
| description | Metal-based high-touch surfaces used for indoor applications such as doorknobs, light switches, handles and desks need to remain their antimicrobial properties even when tarnished or degraded. A novel laboratory methodology of relevance for indoor atmospheric conditions and fingerprint contact has therefore been elaborated for combined studies of both tarnishing/corrosion and antimicrobial properties of such high-touch surfaces. Cu metal was used as a benchmark material. The protocol includes pre-tarnishing/corrosion of the high touch surface for different time periods in a climatic chamber at repeated dry/wet conditions and artificial sweat deposition followed by the introduction of bacteria onto the surfaces via artificial sweat droplets. This methodology provides a more realistic and reproducible approach compared with other reported procedures to determine the antimicrobial efficiency of high-touch surfaces. It provides further a possibility to link the antimicrobial characteristics to physical and chemical properties such as surface composition, chemical reactivity, tarnishing/corrosion, surface roughness and surface wettability. The results elucidate that bacteria interactions as well as differences in extent of tarnishing can alter the physical properties (e.g. surface wettability, surface roughness) as well as the extent of metal release. The results clearly elucidate the importance to consider changes in chemical and physical properties of indoor hygiene surfaces when assessing their antimicrobial properties. |
| doi_str_mv | 10.1371/journal.pone.0247081 |
| format | Article |
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A novel laboratory methodology of relevance for indoor atmospheric conditions and fingerprint contact has therefore been elaborated for combined studies of both tarnishing/corrosion and antimicrobial properties of such high-touch surfaces. Cu metal was used as a benchmark material. The protocol includes pre-tarnishing/corrosion of the high touch surface for different time periods in a climatic chamber at repeated dry/wet conditions and artificial sweat deposition followed by the introduction of bacteria onto the surfaces via artificial sweat droplets. This methodology provides a more realistic and reproducible approach compared with other reported procedures to determine the antimicrobial efficiency of high-touch surfaces. It provides further a possibility to link the antimicrobial characteristics to physical and chemical properties such as surface composition, chemical reactivity, tarnishing/corrosion, surface roughness and surface wettability. The results elucidate that bacteria interactions as well as differences in extent of tarnishing can alter the physical properties (e.g. surface wettability, surface roughness) as well as the extent of metal release. The results clearly elucidate the importance to consider changes in chemical and physical properties of indoor hygiene surfaces when assessing their antimicrobial properties.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0247081</identifier><identifier>PMID: 33630868</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Air pollution ; Air temperature ; Alloys ; Ammonia ; Ammonium chloride ; Anti-infective agents ; Antibiotic resistance ; Antibiotics ; Antiinfectives and antibacterials ; Bacteria ; Bacterial corrosion ; Biology and Life Sciences ; Biotechnology ; Carbon dioxide ; Chemical engineering ; Chemical properties ; Chemistry ; Copper ; Corrosion ; Corrosion products ; Driers ; Drying ; E coli ; Editing ; Efficiency ; Engineering schools ; Food safety ; Global health ; Health aspects ; Health risks ; Humidity ; Hygiene ; Infections ; Laboratories ; Medicin och hälsovetenskap ; Medicine and Health Sciences ; Metal surfaces ; Methodology ; Morbidity ; Nervous system ; Neurosciences ; Nitrogen dioxide ; Oxidation ; Physical Sciences ; Pollutants ; Public health ; Relative humidity ; Research and Analysis Methods ; Sodium chloride ; Sulfur dioxide ; Sweating ; Technology ; Testing ; Touch ; Washrooms</subject><ispartof>PloS one, 2021-02, Vol.16 (2), p.e0247081-e0247081</ispartof><rights>COPYRIGHT 2021 Public Library of Science</rights><rights>2021 Chang et al. 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novel methodology to study antimicrobial properties of high-touch surfaces used for indoor hygiene applications-A study on Cu metal</title><author>Chang, T ; Sepati, M ; Herting, G ; Leygraf, C ; Rajarao, G Kuttuva ; Butina, K ; Richter-Dahlfors, A ; Blomberg, E ; Odnevall Wallinder, I</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c818t-96adc8ad12dd89cf8df4a1fe77427293f50bff4cff0643bbb8039eda15d332013</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Air pollution</topic><topic>Air temperature</topic><topic>Alloys</topic><topic>Ammonia</topic><topic>Ammonium chloride</topic><topic>Anti-infective agents</topic><topic>Antibiotic resistance</topic><topic>Antibiotics</topic><topic>Antiinfectives and antibacterials</topic><topic>Bacteria</topic><topic>Bacterial corrosion</topic><topic>Biology and Life Sciences</topic><topic>Biotechnology</topic><topic>Carbon 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one</jtitle><addtitle>PLoS One</addtitle><date>2021-02-25</date><risdate>2021</risdate><volume>16</volume><issue>2</issue><spage>e0247081</spage><epage>e0247081</epage><pages>e0247081-e0247081</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Metal-based high-touch surfaces used for indoor applications such as doorknobs, light switches, handles and desks need to remain their antimicrobial properties even when tarnished or degraded. A novel laboratory methodology of relevance for indoor atmospheric conditions and fingerprint contact has therefore been elaborated for combined studies of both tarnishing/corrosion and antimicrobial properties of such high-touch surfaces. Cu metal was used as a benchmark material. The protocol includes pre-tarnishing/corrosion of the high touch surface for different time periods in a climatic chamber at repeated dry/wet conditions and artificial sweat deposition followed by the introduction of bacteria onto the surfaces via artificial sweat droplets. This methodology provides a more realistic and reproducible approach compared with other reported procedures to determine the antimicrobial efficiency of high-touch surfaces. It provides further a possibility to link the antimicrobial characteristics to physical and chemical properties such as surface composition, chemical reactivity, tarnishing/corrosion, surface roughness and surface wettability. The results elucidate that bacteria interactions as well as differences in extent of tarnishing can alter the physical properties (e.g. surface wettability, surface roughness) as well as the extent of metal release. The results clearly elucidate the importance to consider changes in chemical and physical properties of indoor hygiene surfaces when assessing their antimicrobial properties.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>33630868</pmid><doi>10.1371/journal.pone.0247081</doi><tpages>e0247081</tpages><orcidid>https://orcid.org/0000-0001-7496-1101</orcidid><orcidid>https://orcid.org/0000-0002-2510-7766</orcidid><oa>free_for_read</oa></addata></record> |
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| issn | 1932-6203 1932-6203 |
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| recordid | cdi_plos_journals_2493460572 |
| source | DOAJ Directory of Open Access Journals; SWEPUB Freely available online; Public Library of Science (PLoS) Journals Open Access; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Air pollution Air temperature Alloys Ammonia Ammonium chloride Anti-infective agents Antibiotic resistance Antibiotics Antiinfectives and antibacterials Bacteria Bacterial corrosion Biology and Life Sciences Biotechnology Carbon dioxide Chemical engineering Chemical properties Chemistry Copper Corrosion Corrosion products Driers Drying E coli Editing Efficiency Engineering schools Food safety Global health Health aspects Health risks Humidity Hygiene Infections Laboratories Medicin och hälsovetenskap Medicine and Health Sciences Metal surfaces Methodology Morbidity Nervous system Neurosciences Nitrogen dioxide Oxidation Physical Sciences Pollutants Public health Relative humidity Research and Analysis Methods Sodium chloride Sulfur dioxide Sweating Technology Testing Touch Washrooms |
| title | A novel methodology to study antimicrobial properties of high-touch surfaces used for indoor hygiene applications-A study on Cu metal |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-27T12%3A54%3A20IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=A%20novel%20methodology%20to%20study%20antimicrobial%20properties%20of%20high-touch%20surfaces%20used%20for%20indoor%20hygiene%20applications-A%20study%20on%20Cu%20metal&rft.jtitle=PloS%20one&rft.au=Chang,%20T&rft.date=2021-02-25&rft.volume=16&rft.issue=2&rft.spage=e0247081&rft.epage=e0247081&rft.pages=e0247081-e0247081&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0247081&rft_dat=%3Cgale_plos_%3EA653037958%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2493460572&rft_id=info:pmid/33630868&rft_galeid=A653037958&rft_doaj_id=oai_doaj_org_article_51b092202b4e45c29e9e8c3974853987&rfr_iscdi=true |