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SAccording to a study released today, which showed that the material in question, made of polyethylene and with microparticles silver and silicaoxide silicon) in its structure, it was able to eliminate 99.84% of the particles of the new virus after two minutes of contact.
Launched by the company Promaflex, specialized in the production of this type of film, the material was developed by the company Nanox with the support of the innovative research program for small businesses of the São Paulo Research Foundation (FAPESP).
The technical standards that measure exercise antiviral on plastics and other non-porous surfaces state that the material should confirm this action in at least four hours.
Tests that followed the standard I SO 21702: 2019, carried out in the laboratory of biosecurity level three (NB3) of the Institute of Biomedical Sciences of the University of São Paulo, showed that the material developed can eliminate the virus much faster.
“The plastic film with the additive proved to be able to achieve this objective in a much shorter time and the action virucidal increased over time, “he said Pike Freitas Junior, a researcher at the institute, mentions in a statement released by FAPESP.
For the study we used material samples with and without microparticles silver and silica embedded in the structure, which kept in contact direct I like it SARS–CoV-2 in different time intervals.
After the stipulated deadlines, the new coronavirus present in the material samples were collected and placed in contact with the cells Vero – type of cell line used in crops microbiological: to assess the ability to infection and multiplication after exposure on the adhesive plastic.
The results indicated a reduction of almost 100% in the copies of the SARS–CoV-2 that were in contact with adhesive plastic samples after two minutes of exposure to the material.
“As they are added microparticles silver and silica to plastic mass during production, action antimicrobial remains throughout the useful life of the material, “he said. Luiz Gustavo Pagotto Simões, director gives Nanox.
The manufacturer of the plastic with the additive, however, recommends its use for up to three months, to avoid wear of the material by excessive contact.
Adhesive film is the second plastic material with microparticles silver and silica marketed by Nanox, who developed a reusable mask made with a flexible plastic and the additive applied to its surface.
Microparticles silver and silica were also applied by Nanox in fabrics for the development of anti-clothingCOVID-19-19.
In fabrics, microparticles silver and silica are impregnated to the surface by a process of dipping, followed by drying and fixing, referred to as “pad dry curing”.
Brazil is the country lusophone plus affected through pandemic and one of the most affected in the world, when accounting for the second number of deaths (more than 4.3 million cases and 132,006 Deceased), after the United States of America.
A pandemic of COVID-19-19 has already caused at least 929,391 deaths and more than 29.3 million cases of infection in 196 countries and territories, according to a report prepared by the French agency AFP.
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