Development of technology for fabricating an antiviral coating that has both immediacy and sustainability
Aerosol Deposition (AD) method, a coating technology developed by AIST, was used to fabricate an alumina nanoporous film on the surface of a substrate, and this film was impregnated with a chemical agent that is effective against viruses similar to the novel coronavirus (SARS-CoV-2). This coating exhibited remarkable antiviral effects, with a virus inactivation rate of 99.997% or more after 24 hours and 99.98% or more after two hours. Furthermore, the technology enables fabrication of antiviral coatings that feel good at normal temperature on the surface of various substrates such as stainless steel, glass, and resin.