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Photocatalytic Antibacterial Effects Are Maintained on Resin-Based TiO(2) Nanocomposites after Cessation of UV Irradiation
Photocatalysis induced by TiO(2) and UV light constitutes a decontamination and antibacterial strategy utilized in many applications including self-cleaning environmental surfaces, water and air treatment. The present work reveals that antibacterial effects induced by photocatalysis can be maintaine...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3798317/ https://www.ncbi.nlm.nih.gov/pubmed/24146793 http://dx.doi.org/10.1371/journal.pone.0075929 |
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author | Cai, Yanling Strømme, Maria Welch, Ken |
author_facet | Cai, Yanling Strømme, Maria Welch, Ken |
author_sort | Cai, Yanling |
collection | PubMed |
description | Photocatalysis induced by TiO(2) and UV light constitutes a decontamination and antibacterial strategy utilized in many applications including self-cleaning environmental surfaces, water and air treatment. The present work reveals that antibacterial effects induced by photocatalysis can be maintained even after the cessation of UV irradiation. We show that resin-based composites containing 20% TiO(2) nanoparticles continue to provide a pronounced antibacterial effect against the pathogens Escherichia coli, Staphylococcus epidermidis, Streptococcus pyogenes, Streptococcus mutans and Enterococcus faecalis for up to two hours post UV. For biomaterials or implant coatings, where direct UV illumination is not feasible, a prolonged antibacterial effect after the cessation of the illumination would offer new unexplored treatment possibilities. |
format | Online Article Text |
id | pubmed-3798317 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-37983172013-10-21 Photocatalytic Antibacterial Effects Are Maintained on Resin-Based TiO(2) Nanocomposites after Cessation of UV Irradiation Cai, Yanling Strømme, Maria Welch, Ken PLoS One Research Article Photocatalysis induced by TiO(2) and UV light constitutes a decontamination and antibacterial strategy utilized in many applications including self-cleaning environmental surfaces, water and air treatment. The present work reveals that antibacterial effects induced by photocatalysis can be maintained even after the cessation of UV irradiation. We show that resin-based composites containing 20% TiO(2) nanoparticles continue to provide a pronounced antibacterial effect against the pathogens Escherichia coli, Staphylococcus epidermidis, Streptococcus pyogenes, Streptococcus mutans and Enterococcus faecalis for up to two hours post UV. For biomaterials or implant coatings, where direct UV illumination is not feasible, a prolonged antibacterial effect after the cessation of the illumination would offer new unexplored treatment possibilities. Public Library of Science 2013-10-17 /pmc/articles/PMC3798317/ /pubmed/24146793 http://dx.doi.org/10.1371/journal.pone.0075929 Text en © 2013 Cai et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Cai, Yanling Strømme, Maria Welch, Ken Photocatalytic Antibacterial Effects Are Maintained on Resin-Based TiO(2) Nanocomposites after Cessation of UV Irradiation |
title | Photocatalytic Antibacterial Effects Are Maintained on Resin-Based TiO(2) Nanocomposites after Cessation of UV Irradiation |
title_full | Photocatalytic Antibacterial Effects Are Maintained on Resin-Based TiO(2) Nanocomposites after Cessation of UV Irradiation |
title_fullStr | Photocatalytic Antibacterial Effects Are Maintained on Resin-Based TiO(2) Nanocomposites after Cessation of UV Irradiation |
title_full_unstemmed | Photocatalytic Antibacterial Effects Are Maintained on Resin-Based TiO(2) Nanocomposites after Cessation of UV Irradiation |
title_short | Photocatalytic Antibacterial Effects Are Maintained on Resin-Based TiO(2) Nanocomposites after Cessation of UV Irradiation |
title_sort | photocatalytic antibacterial effects are maintained on resin-based tio(2) nanocomposites after cessation of uv irradiation |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3798317/ https://www.ncbi.nlm.nih.gov/pubmed/24146793 http://dx.doi.org/10.1371/journal.pone.0075929 |
work_keys_str_mv | AT caiyanling photocatalyticantibacterialeffectsaremaintainedonresinbasedtio2nanocompositesaftercessationofuvirradiation AT strømmemaria photocatalyticantibacterialeffectsaremaintainedonresinbasedtio2nanocompositesaftercessationofuvirradiation AT welchken photocatalyticantibacterialeffectsaremaintainedonresinbasedtio2nanocompositesaftercessationofuvirradiation |