Brazilian Scientist: This Plastic Film Can Kill The New Coronavirus In Minutes

Xinhua News Agency, Beijing, September 23, a new media special report from Brazil. According to a study released on the 15th, Brazil has developed a composite plastic film that can inactivate the new crown virus in a few minutes by contacting it, preventing handles and elevator buttons. Even the touch screen spreads viruses.

According to a report by EFE Sao Paulo on September 15, this material is added with silver and silica particles on the basis of polyethylene, which has been proven to kill 99.84% of the new coronavirus particles after two minutes of contact.

The report pointed out that the material was developed by Nanox under the support of the Small Business Innovation Research Program of the Sao Paulo Research Foundation, Brazil, and launched by Promaflex, a company that specializes in producing such films.

The technical standard for measuring the antiviral activity of plastics and other non-porous surfaces stipulates that the material should confirm the antivirus effect within 4 hours.

The test conducted by the Biosafety Level 3 Laboratory of the Institute of Biomedical Sciences of the University of Sao Paulo in accordance with the ISO 21702:2019 standard shows that this material can quickly kill the virus.

Experts said: "It has been proven that this composite plastic film can achieve this goal in a very short time, and the longer the time, the stronger the killing effect."

reported that researchers will maintain direct contact with the new coronavirus and set different time intervals for material samples that contain and do not contain silver and silica particles. After a set time, the researchers collect the new coronavirus on the material sample and contact it with Vero cells (a cell line used for microbial culture) to evaluate the infection and proliferation of the virus after exposure to the plastic film ability.

The media reported that the experimental results showed that the new coronavirus in contact with the composite material sample was reduced by nearly 100% after two minutes of exposure.

Luis Gustavo Pagoto Simmons, head of Nanox, said: “Since silver and silica particles are added to the plastic blank during the production process, the antibacterial effect can be maintained throughout the life cycle of the material. ."

However, the standing pouch manufacturers of this composite material recommends that it be used for no more than 3 months to avoid material wear caused by excessive contact.

According to media reports, this composite film is the second plastic material containing silver and silica particles sold by Nanox. Previously, the company developed a reusable mask that uses elastic plastic and adds silver and silica particles to the surface. Nanox also uses silver and silica particles on fabrics to develop anti-coronavirus clothing.

(Source: Xinhua News Agency)