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HeiQ Viroblock tested successfully to prevent Coronavirus

Among the first textile technologies in the world, HeiQ Viroblock NPJ03 is proven effective against SARS-CoV-2 in the laboratory. Swiss textile innovator HeiQ with the Peter Doherty Institute conducted the test for infection and immunity in Melbourne, Australia (Doherty Institute) and the treated fabric achieved a 99.99% reduction of the virus.

Figure: HeiQ Viroblock NPJ03 is the combination of silver antimicrobial technology and vesicle technology proven effective against SARS-CoV-2 and the treated fabric achieved a 99.99% reduction of the virus. Courtesy: HeiQ

HeiQ Viroblock NPJ03 is an intelligent Swiss textile technology that is added to the fabric during the final stage of the textile manufacturing process. The combination of silver antimicrobial technology and vesicle technology rapidly destroys enveloped viruses including coronaviruses. It has previously been tested against Coronavirus 229E, another strain of the virus in the Coronavirus family.

Doherty Institute, a joint venture between the University of Melbourne and The Royal Melbourne Hospital conducted the latest testing with the SARS-CoV-2 virus. The research project involved a disinfection test protocol that simulated the real-life interaction of small aerosol droplets contaminating clothing. A known concentration of the SARS-CoV-2 virus was contacted with the sample fabric for 30 minutes followed by the measurement of remaining infectious SARS-CoV-2 viruses.

The fabric sample treated with HeiQ Viroblock NPJ03 had no infective viruses left after 30 minutes, and the result indicated a SARS-CoV-2 virus reduction of 99.99% relative to the inoculum control, the company said.

“The confirmation of the antiviral activity of HeiQ Viroblock against SARS-CoV-2 is an important milestone.” Carlo Centonze, Swiss co-founder and Chief Executive Officer of HeiQ Group, stated.

“This data forms part of our ongoing efforts to help provide textiles with greater levels of protection against viruses and contribute to efforts towards mitigation of the global pandemic,” Carlo added.

The silver technology attracts the oppositely charged viruses and binds permanently to their sulfur groups. Subsequently, fatty spherical vesicle technology (Liposomes) helps to deplete the viral membrane of its cholesterol content in minutes, therefore the silver can destroy the virus rapidly. This can be used in protective medical fabrics, e.g. used for face masks, air filters, medical gowns, curtains, drapes; clothing, upholstery, mattresses, etc.

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