They create a plastic sheet that inactive in minutes to Coronavirus

The material was prepared with plants and silicon partages and silicon.

Foto:

EFE

FOTO:

EFE

The virus, in contact with the material, disappears in two minutes in more than 99 %.

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Coronavirus

COVID-19

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15 de septiembre 2020, 02:03 P. M.EFEFE15 de septiembre 2020, 02:03 P. M.

Handles, elevator buttons and even touch screens can cease to be transmitters of the new coronavirus thanks to an adhesive plastic sheet developed in Brazil, which can inactivate SARS-COV-2 by contact in minutes, according to a study released on Tuesday.The material, made from polyethylene and with silver and silica microparticles (silicon oxide) in its structure, proved to be able to eliminate 99.84 % of the particles of the new virus after two minutes of contact.(Lea también: Fosfina en la atmósfera de Venus podría indicar presencia de vida)

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Released by the company Promaflex, specialized in the elaboration of this type of films, the material was developed by the Nanox company with the support of the Innovative Research Program for small businesses of the Amparo Foundation to the Research of the State of Sao Paulo (FAPESP).Technical standards that measure antiviral activity in plastics and other non -porous surfaces establish that the material must confirm viricidal action in at least four hours. (Lea también: Facebook y Coursera lanzan certificado de marketing en redes sociales)Pruebas que siguieron la norma ISO 21702:2019, realizadas en el laboratorio de bioseguridad de nivel tres (NB3) del Instituto de Ciencias Biomédicas de la Universidad de Sao Paulo, demostraron que el material desarrollado puede eliminar el virus mucho más rápido."The plastic film with the additive proved to be able to achieve this goal in a much shorter time and the viricidal action increased over time," said Lucio Freitas Junior, a researcher of the Institute, cited in a note released by the FAPESP.For the study, material samples were used with and without silver and silica microparticles incorporated into the structure that remained in direct contact with the SARS-COV-2 in different time intervals. (Lea también: 7 de cada 10 niños están aprendiendo poco o nada en la pandemia)Transcurridos los períodos estipulados, los coronavirus presentes en las muestras de material se recolectaron y se pusieron en contacto con células Vero -un tipo de linaje celular utilizado en cultivos microbiológicos- para evaluar la capacidad de infección y multiplicación después de la exposición sobre la película plástica.The results indicated a reduction of almost 100 % in the copies of SARS-COV-2 that came into contact with samples of the adhesive sheet after two minutes of exposure to the material."As silver and silica microparticles are added to the plastic mass during production, antimicrobial action remains throughout the useful life of the material," said Luiz Gustavo Pagotto Simões, director of Nanox.However, the manufacturer of the plastic film with the additive recommends using it for up to three months to avoid the wear of the material due to excessive contact. (Lea también: Conozca las fechas de las pruebas Saber 11 calendario A)El filme adhesivo es el segundo material plástico con micropartículas de plata y sílice comercializado por Nanox, que elaboró una máscara reutilizable hecha con un plástico flexible y con el aditivo aplicado a su superficie.Silver and silica microparticles have also been applied by Nanox on fabrics for the development of anti-COVID-19 clothing.In tissues, silver and silica microparticles are impregnated on the surface through an immersion process, followed by a drying and fixation, called 'Pad-Dry-Cure'.EFE

15 de septiembre 2020, 02:03 P. M.EFEFE15 de septiembre 2020, 02:03 P. M.Relacionados:

Brazil

Coronavirus

COVID-19

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