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Polysiloxane Coatings Biodeterioration in Nature and Laboratory

Objects and structures made of organic glass require protection from damage caused by external factors. Light, humidity, temperature, dust pollution and, undoubtedly, microorganisms lead to the deterioration of optical and mechanical properties. Polysiloxane-based protective coatings, consisting of...

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Autores principales: Danilaev, Maxim, Yakovleva, Galina, Karandashov, Sergey, Kuklin, Vladimir, Le, Hong Quan, Kurdy, William, Ilinskaya, Olga
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9415827/
https://www.ncbi.nlm.nih.gov/pubmed/36014015
http://dx.doi.org/10.3390/microorganisms10081597
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author Danilaev, Maxim
Yakovleva, Galina
Karandashov, Sergey
Kuklin, Vladimir
Le, Hong Quan
Kurdy, William
Ilinskaya, Olga
author_facet Danilaev, Maxim
Yakovleva, Galina
Karandashov, Sergey
Kuklin, Vladimir
Le, Hong Quan
Kurdy, William
Ilinskaya, Olga
author_sort Danilaev, Maxim
collection PubMed
description Objects and structures made of organic glass require protection from damage caused by external factors. Light, humidity, temperature, dust pollution and, undoubtedly, microorganisms lead to the deterioration of optical and mechanical properties. Polysiloxane-based protective coatings, consisting of silicon–oxygen backbones linked together with organic side groups attached to the silicon atoms, are widely used. However, the polysiloxane coatings themselves also cannot avoid deterioration during operation that implies the constant development of new protective materials. Here, we created a new cross-linked polysiloxane that covers organic glasses to enhance their resistance to aggressive external factors, and investigated its own resistance to damage induced by micromycetes in natural tropical conditions and in the laboratory. It has been established that the surface of coatings in the tropics is prone to fouling with micromycetes, mainly of the genera Aspergillus and Penicillium, which produce oxalic, malic, lactic, and citric acids contributing to the biodeterioration of polysiloxane. The testing of monolithic polycarbonate, polymethyl methacrylate, and triplex coated with polysiloxane showed that they retained significant resistance to abrasion and transparency at a level of more than 90% under aggressive natural conditions. Under artificial laboratory conditions, the infection of samples with micromycete spores also revealed their growth on surfaces and a similar trend of damage.
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spelling pubmed-94158272022-08-27 Polysiloxane Coatings Biodeterioration in Nature and Laboratory Danilaev, Maxim Yakovleva, Galina Karandashov, Sergey Kuklin, Vladimir Le, Hong Quan Kurdy, William Ilinskaya, Olga Microorganisms Article Objects and structures made of organic glass require protection from damage caused by external factors. Light, humidity, temperature, dust pollution and, undoubtedly, microorganisms lead to the deterioration of optical and mechanical properties. Polysiloxane-based protective coatings, consisting of silicon–oxygen backbones linked together with organic side groups attached to the silicon atoms, are widely used. However, the polysiloxane coatings themselves also cannot avoid deterioration during operation that implies the constant development of new protective materials. Here, we created a new cross-linked polysiloxane that covers organic glasses to enhance their resistance to aggressive external factors, and investigated its own resistance to damage induced by micromycetes in natural tropical conditions and in the laboratory. It has been established that the surface of coatings in the tropics is prone to fouling with micromycetes, mainly of the genera Aspergillus and Penicillium, which produce oxalic, malic, lactic, and citric acids contributing to the biodeterioration of polysiloxane. The testing of monolithic polycarbonate, polymethyl methacrylate, and triplex coated with polysiloxane showed that they retained significant resistance to abrasion and transparency at a level of more than 90% under aggressive natural conditions. Under artificial laboratory conditions, the infection of samples with micromycete spores also revealed their growth on surfaces and a similar trend of damage. MDPI 2022-08-08 /pmc/articles/PMC9415827/ /pubmed/36014015 http://dx.doi.org/10.3390/microorganisms10081597 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Danilaev, Maxim
Yakovleva, Galina
Karandashov, Sergey
Kuklin, Vladimir
Le, Hong Quan
Kurdy, William
Ilinskaya, Olga
Polysiloxane Coatings Biodeterioration in Nature and Laboratory
title Polysiloxane Coatings Biodeterioration in Nature and Laboratory
title_full Polysiloxane Coatings Biodeterioration in Nature and Laboratory
title_fullStr Polysiloxane Coatings Biodeterioration in Nature and Laboratory
title_full_unstemmed Polysiloxane Coatings Biodeterioration in Nature and Laboratory
title_short Polysiloxane Coatings Biodeterioration in Nature and Laboratory
title_sort polysiloxane coatings biodeterioration in nature and laboratory
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9415827/
https://www.ncbi.nlm.nih.gov/pubmed/36014015
http://dx.doi.org/10.3390/microorganisms10081597
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