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Hybrid Silica Xerogel and Titania/Silica Xerogel Dispersions Reinforcing Hydrophilicity and Antimicrobial Resistance of Leathers
Four leather substrates from different animals were treated by dispersions containing hydrophilic composite silica-hyperbranched poly(ethylene imine) xerogels. Antimicrobial activity was introduced by incorporating silver nanoparticles and/or benzalkonium chloride. The gel precursor solutions were a...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10530134/ https://www.ncbi.nlm.nih.gov/pubmed/37754366 http://dx.doi.org/10.3390/gels9090685 |
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author | Arkas, Michael Bompotis, Theofanis Giannakopoulos, Konstantinos Favvas, Evangelos P. Arvanitopoulou, Marina Arvanitopoulos, Konstantinos Arvanitopoulos, Labros Kythreoti, Georgia Vardavoulias, Michail Giannakoudakis, Dimitrios A. Castellsagués, Laura Soto González, Sara Maria |
author_facet | Arkas, Michael Bompotis, Theofanis Giannakopoulos, Konstantinos Favvas, Evangelos P. Arvanitopoulou, Marina Arvanitopoulos, Konstantinos Arvanitopoulos, Labros Kythreoti, Georgia Vardavoulias, Michail Giannakoudakis, Dimitrios A. Castellsagués, Laura Soto González, Sara Maria |
author_sort | Arkas, Michael |
collection | PubMed |
description | Four leather substrates from different animals were treated by dispersions containing hydrophilic composite silica-hyperbranched poly(ethylene imine) xerogels. Antimicrobial activity was introduced by incorporating silver nanoparticles and/or benzalkonium chloride. The gel precursor solutions were also infused before gelation to titanium oxide powders typically employed for induction of self-cleaning properties. The dispersions from these biomimetically premade xerogels integrate environmentally friendly materials with short coating times. Scanning electron microscopy (SEM) provided information on the powder distribution onto the leathers. Substrate and coating composition were estimated by infrared spectroscopy (IR) and energy-dispersive X-ray spectroscopy (EDS). Surface hydrophilicity and water permeability were assessed by water-contact angle experiments. The diffusion of the leather’s initial components and xerogel additives into the water were measured by Ultraviolet-Visible (UV-Vis) spectroscopy. Protection against GRAM- bacteria was tested for Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae against GRAM+ bacteria for Staphylococcus aureus and Enterococcus faecalis and against fungi for Candida albicans. Antibiofilm capacity experiments were performed against Staphylococcus aureus, Klebsiella pneumoniae, Enterococcus faecalis, and Candida albicans. The application of xerogel dispersions proved an adequate and economically feasible alternative to the direct gel formation into the substrate’s pores for the preparation of leathers intended for medical uses. |
format | Online Article Text |
id | pubmed-10530134 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-105301342023-09-28 Hybrid Silica Xerogel and Titania/Silica Xerogel Dispersions Reinforcing Hydrophilicity and Antimicrobial Resistance of Leathers Arkas, Michael Bompotis, Theofanis Giannakopoulos, Konstantinos Favvas, Evangelos P. Arvanitopoulou, Marina Arvanitopoulos, Konstantinos Arvanitopoulos, Labros Kythreoti, Georgia Vardavoulias, Michail Giannakoudakis, Dimitrios A. Castellsagués, Laura Soto González, Sara Maria Gels Article Four leather substrates from different animals were treated by dispersions containing hydrophilic composite silica-hyperbranched poly(ethylene imine) xerogels. Antimicrobial activity was introduced by incorporating silver nanoparticles and/or benzalkonium chloride. The gel precursor solutions were also infused before gelation to titanium oxide powders typically employed for induction of self-cleaning properties. The dispersions from these biomimetically premade xerogels integrate environmentally friendly materials with short coating times. Scanning electron microscopy (SEM) provided information on the powder distribution onto the leathers. Substrate and coating composition were estimated by infrared spectroscopy (IR) and energy-dispersive X-ray spectroscopy (EDS). Surface hydrophilicity and water permeability were assessed by water-contact angle experiments. The diffusion of the leather’s initial components and xerogel additives into the water were measured by Ultraviolet-Visible (UV-Vis) spectroscopy. Protection against GRAM- bacteria was tested for Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae against GRAM+ bacteria for Staphylococcus aureus and Enterococcus faecalis and against fungi for Candida albicans. Antibiofilm capacity experiments were performed against Staphylococcus aureus, Klebsiella pneumoniae, Enterococcus faecalis, and Candida albicans. The application of xerogel dispersions proved an adequate and economically feasible alternative to the direct gel formation into the substrate’s pores for the preparation of leathers intended for medical uses. MDPI 2023-08-25 /pmc/articles/PMC10530134/ /pubmed/37754366 http://dx.doi.org/10.3390/gels9090685 Text en © 2023 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 Arkas, Michael Bompotis, Theofanis Giannakopoulos, Konstantinos Favvas, Evangelos P. Arvanitopoulou, Marina Arvanitopoulos, Konstantinos Arvanitopoulos, Labros Kythreoti, Georgia Vardavoulias, Michail Giannakoudakis, Dimitrios A. Castellsagués, Laura Soto González, Sara Maria Hybrid Silica Xerogel and Titania/Silica Xerogel Dispersions Reinforcing Hydrophilicity and Antimicrobial Resistance of Leathers |
title | Hybrid Silica Xerogel and Titania/Silica Xerogel Dispersions Reinforcing Hydrophilicity and Antimicrobial Resistance of Leathers |
title_full | Hybrid Silica Xerogel and Titania/Silica Xerogel Dispersions Reinforcing Hydrophilicity and Antimicrobial Resistance of Leathers |
title_fullStr | Hybrid Silica Xerogel and Titania/Silica Xerogel Dispersions Reinforcing Hydrophilicity and Antimicrobial Resistance of Leathers |
title_full_unstemmed | Hybrid Silica Xerogel and Titania/Silica Xerogel Dispersions Reinforcing Hydrophilicity and Antimicrobial Resistance of Leathers |
title_short | Hybrid Silica Xerogel and Titania/Silica Xerogel Dispersions Reinforcing Hydrophilicity and Antimicrobial Resistance of Leathers |
title_sort | hybrid silica xerogel and titania/silica xerogel dispersions reinforcing hydrophilicity and antimicrobial resistance of leathers |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10530134/ https://www.ncbi.nlm.nih.gov/pubmed/37754366 http://dx.doi.org/10.3390/gels9090685 |
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