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Virus Inactivation Based on Optimal Surfactant Reservoir of Mesoporous Silica
[Image: see text] SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) caused a pandemic in 2019 and reaffirmed the importance of environmental sanitation. To prevent the spread of viral infections, we propose the application of a mesoporous silica (MS)-based virus-inactivating material. MS...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10031556/ https://www.ncbi.nlm.nih.gov/pubmed/36780326 http://dx.doi.org/10.1021/acsabm.2c00901 |
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author | Hirao, Rie Shigetoh, Keisuke Inagaki, Shinji Ishida, Nobuhiro |
author_facet | Hirao, Rie Shigetoh, Keisuke Inagaki, Shinji Ishida, Nobuhiro |
author_sort | Hirao, Rie |
collection | PubMed |
description | [Image: see text] SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) caused a pandemic in 2019 and reaffirmed the importance of environmental sanitation. To prevent the spread of viral infections, we propose the application of a mesoporous silica (MS)-based virus-inactivating material. MS is typically synthesized using a micellar surfactant template; hence, the intermediate before removal of the surfactant template is expected to have a virus-inactivating activity. MS-CTAC particles filled with cetyltrimethylammonium chloride (CTAC), a cationic surfactant with an alkyl chain length of 16, were used to test this hypothesis. Plaque assays revealed that the MS-CTAC particles inactivated the enveloped bacteriophage φ6 by approximately 4 orders of magnitude after a contact time of 10 min. The particles also indicated a similar inactivation effect on the nonenveloped bacteriophage Qβ. In aqueous solution, CTAC loaded on MS-CTAC was released until the equilibrium concentration of loading and release on MS was reached. The released CTAC acted on viruses. Thus, MS is likely a good reservoir for the micellar surfactant. Surfactant readsorption also occurred in the MS particles, and the highest retention rate was observed when micellar surfactants with alkyl chain lengths appropriate for the pore size were used. The paper containing MS-CTAC particles was shown to maintain stable viral inactivation for at least three months in a typical indoor environment. Applying this concept to indoor wallpaper and air-conditioning filters could contribute to the inactivation of viruses in aerosols. These findings open possibilities for mesoporous materials with high surface areas, which can further develop into virus inactivation materials. |
format | Online Article Text |
id | pubmed-10031556 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-100315562023-03-23 Virus Inactivation Based on Optimal Surfactant Reservoir of Mesoporous Silica Hirao, Rie Shigetoh, Keisuke Inagaki, Shinji Ishida, Nobuhiro ACS Appl Bio Mater [Image: see text] SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) caused a pandemic in 2019 and reaffirmed the importance of environmental sanitation. To prevent the spread of viral infections, we propose the application of a mesoporous silica (MS)-based virus-inactivating material. MS is typically synthesized using a micellar surfactant template; hence, the intermediate before removal of the surfactant template is expected to have a virus-inactivating activity. MS-CTAC particles filled with cetyltrimethylammonium chloride (CTAC), a cationic surfactant with an alkyl chain length of 16, were used to test this hypothesis. Plaque assays revealed that the MS-CTAC particles inactivated the enveloped bacteriophage φ6 by approximately 4 orders of magnitude after a contact time of 10 min. The particles also indicated a similar inactivation effect on the nonenveloped bacteriophage Qβ. In aqueous solution, CTAC loaded on MS-CTAC was released until the equilibrium concentration of loading and release on MS was reached. The released CTAC acted on viruses. Thus, MS is likely a good reservoir for the micellar surfactant. Surfactant readsorption also occurred in the MS particles, and the highest retention rate was observed when micellar surfactants with alkyl chain lengths appropriate for the pore size were used. The paper containing MS-CTAC particles was shown to maintain stable viral inactivation for at least three months in a typical indoor environment. Applying this concept to indoor wallpaper and air-conditioning filters could contribute to the inactivation of viruses in aerosols. These findings open possibilities for mesoporous materials with high surface areas, which can further develop into virus inactivation materials. American Chemical Society 2023-02-13 /pmc/articles/PMC10031556/ /pubmed/36780326 http://dx.doi.org/10.1021/acsabm.2c00901 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Hirao, Rie Shigetoh, Keisuke Inagaki, Shinji Ishida, Nobuhiro Virus Inactivation Based on Optimal Surfactant Reservoir of Mesoporous Silica |
title | Virus Inactivation
Based on Optimal Surfactant Reservoir
of Mesoporous Silica |
title_full | Virus Inactivation
Based on Optimal Surfactant Reservoir
of Mesoporous Silica |
title_fullStr | Virus Inactivation
Based on Optimal Surfactant Reservoir
of Mesoporous Silica |
title_full_unstemmed | Virus Inactivation
Based on Optimal Surfactant Reservoir
of Mesoporous Silica |
title_short | Virus Inactivation
Based on Optimal Surfactant Reservoir
of Mesoporous Silica |
title_sort | virus inactivation
based on optimal surfactant reservoir
of mesoporous silica |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10031556/ https://www.ncbi.nlm.nih.gov/pubmed/36780326 http://dx.doi.org/10.1021/acsabm.2c00901 |
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