Table 5 Recent research on anti-virus masks reported in the media
Institution | Materials | Methods | Data availability | Media |
|---|---|---|---|---|
Indian Institute of Science | Ag/Zn nanoparticle | nanofibrous polymer membrane | Issued a patent (US 9,686,997 B2); No virus test data released | Indian Institute of Science website (https://covid19.iisc.ac.in/) |
Indian Institute of Technology | inorganic antiviral or antibacterial nanoparticles as well as organic antiviral and antibacterial molecules | nanofibrous polymer membrane | No virus test data released | eGov magazine website (https://egov.eletsonline.com/2020/04/dst-supports-development-of-reusable-n95-n99-mask-with-enhanced-antiviral-efficiency/) |
Viroblock SA, Switzerland | A biphasic system. The first phase is composed of nonphospholipids. The second part is an aqueous phase containing a cyclodextrin derivative. | Coating | Masks comply with EN149 standard; 5 log antiviral performance; 99,999% protection from H1N1, H5N1 and human coronaviruses | T. Pelet & J. Paterson, “A Novel Technology to Protect from Airborne Viruses”, Asia–Pacific Biotech News, 2013, 17. |
Hong Kong University of Science and Technology | Undisclosed | Coating | 99.99% protection from bacteria and viruses including rubella, avian influenza, H1N1 and FCV | Hong Kong University of Science and Technology website |
University of Kentucky | proteolytic enzymes | Antivirus filter | No virus test data released | University of Kentucky website (https://uknow.uky.edu/research/uk-researchers-seek-develop-antiviral-membrane-mask) |