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Antimicrobial property of photocatalytic nanoparticles-coated personal protective equipment (PPE) on bacteria and fungi

Photocatalytic nanoparticles are new applications that can be used as coatings on surfaces through a photocatalytic process that reacts in the presence of chemical catalysts and light. The resulting reactive oxygen species (ROS) would damage pathogenic components and result in antimicrobial effects....

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Main Authors: Subash Nambiar Sree Pathi,, Noraziah Mohamad Zin,, Nurul Amira Abd Rahim,, Nur Faizah Abu Bakar,, Wong, Kon Ken
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2023
Online Access:http://journalarticle.ukm.my/23336/1/SS%2015.pdf
http://journalarticle.ukm.my/23336/
https://www.ukm.my/jsm/english_journals/vol52num10_2023/contentsVol52num10_2023.html
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spelling my-ukm.journal.233362024-04-03T03:26:49Z http://journalarticle.ukm.my/23336/ Antimicrobial property of photocatalytic nanoparticles-coated personal protective equipment (PPE) on bacteria and fungi Subash Nambiar Sree Pathi, Noraziah Mohamad Zin, Nurul Amira Abd Rahim, Nur Faizah Abu Bakar, Wong, Kon Ken Photocatalytic nanoparticles are new applications that can be used as coatings on surfaces through a photocatalytic process that reacts in the presence of chemical catalysts and light. The resulting reactive oxygen species (ROS) would damage pathogenic components and result in antimicrobial effects. This study was conducted to evaluate the antimicrobial properties of photocatalytic nanoparticles on personal protective equipment (PPE), namely surgical gowns and masks. Antimicrobial testing of photocatalytic nanoparticles against PPE inoculated with pathogens was carried out. The growth log reduction of isolates tested on the photocatalytic nanoparticles-coated PPE showed 100% with growth reduction exceeding 4 log against Escherichia coli ATCC 25922 as well as Staphylococcus aureus ATCC 25923 but less than 50% reduction against Candida albicans ATCC 10231. For 20 h incubation periods, both bacteria showed growth reduction of at least 4 log with 99.99% of reduction. The 5 and 20 times washing effects showed an overall reduction of 99.99%-100% against both bacteria but less than 99.99% against C. albicans. Photocatalytic nanocoating produces an antimicrobial effect that helps to kill the tested pathogens and reduce the attachment of bacteria but not fungi, on the surface of PPE. This nanoparticle is capable of continuous self-disinfection to reduce the number of pathogens. The number of washing cycle also does not affect its function to reduce the growth of pathogens. Penerbit Universiti Kebangsaan Malaysia 2023 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/23336/1/SS%2015.pdf Subash Nambiar Sree Pathi, and Noraziah Mohamad Zin, and Nurul Amira Abd Rahim, and Nur Faizah Abu Bakar, and Wong, Kon Ken (2023) Antimicrobial property of photocatalytic nanoparticles-coated personal protective equipment (PPE) on bacteria and fungi. Sains Malaysiana, 52 (10). pp. 2931-2942. ISSN 0126-6039 https://www.ukm.my/jsm/english_journals/vol52num10_2023/contentsVol52num10_2023.html
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description Photocatalytic nanoparticles are new applications that can be used as coatings on surfaces through a photocatalytic process that reacts in the presence of chemical catalysts and light. The resulting reactive oxygen species (ROS) would damage pathogenic components and result in antimicrobial effects. This study was conducted to evaluate the antimicrobial properties of photocatalytic nanoparticles on personal protective equipment (PPE), namely surgical gowns and masks. Antimicrobial testing of photocatalytic nanoparticles against PPE inoculated with pathogens was carried out. The growth log reduction of isolates tested on the photocatalytic nanoparticles-coated PPE showed 100% with growth reduction exceeding 4 log against Escherichia coli ATCC 25922 as well as Staphylococcus aureus ATCC 25923 but less than 50% reduction against Candida albicans ATCC 10231. For 20 h incubation periods, both bacteria showed growth reduction of at least 4 log with 99.99% of reduction. The 5 and 20 times washing effects showed an overall reduction of 99.99%-100% against both bacteria but less than 99.99% against C. albicans. Photocatalytic nanocoating produces an antimicrobial effect that helps to kill the tested pathogens and reduce the attachment of bacteria but not fungi, on the surface of PPE. This nanoparticle is capable of continuous self-disinfection to reduce the number of pathogens. The number of washing cycle also does not affect its function to reduce the growth of pathogens.
format Article
author Subash Nambiar Sree Pathi,
Noraziah Mohamad Zin,
Nurul Amira Abd Rahim,
Nur Faizah Abu Bakar,
Wong, Kon Ken
spellingShingle Subash Nambiar Sree Pathi,
Noraziah Mohamad Zin,
Nurul Amira Abd Rahim,
Nur Faizah Abu Bakar,
Wong, Kon Ken
Antimicrobial property of photocatalytic nanoparticles-coated personal protective equipment (PPE) on bacteria and fungi
author_facet Subash Nambiar Sree Pathi,
Noraziah Mohamad Zin,
Nurul Amira Abd Rahim,
Nur Faizah Abu Bakar,
Wong, Kon Ken
author_sort Subash Nambiar Sree Pathi,
title Antimicrobial property of photocatalytic nanoparticles-coated personal protective equipment (PPE) on bacteria and fungi
title_short Antimicrobial property of photocatalytic nanoparticles-coated personal protective equipment (PPE) on bacteria and fungi
title_full Antimicrobial property of photocatalytic nanoparticles-coated personal protective equipment (PPE) on bacteria and fungi
title_fullStr Antimicrobial property of photocatalytic nanoparticles-coated personal protective equipment (PPE) on bacteria and fungi
title_full_unstemmed Antimicrobial property of photocatalytic nanoparticles-coated personal protective equipment (PPE) on bacteria and fungi
title_sort antimicrobial property of photocatalytic nanoparticles-coated personal protective equipment (ppe) on bacteria and fungi
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2023
url http://journalarticle.ukm.my/23336/1/SS%2015.pdf
http://journalarticle.ukm.my/23336/
https://www.ukm.my/jsm/english_journals/vol52num10_2023/contentsVol52num10_2023.html
_version_ 1797908402818514944
score 13.211869

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