2021 Volume 57 Issue 11 Pages 450-456
In recent years, with the improvement of quality of life, there has been an increasing interest in aseptic
condition in various fields, including the residential environment. This review outlines the research and
development status of antimicrobial and antiviral materials that have been undertaken to date. Then, the
antimicrobial and antiviral material, such as ABCoat consisting of metallic nanocolloids, which we have been
developing with focusing on safety is presented.
ABCoat is an aqueous dispersion in which platinum and silver are nanocolloidated, and the constituent
concentration of the particles is 0.1wt% or less, and the average particle diameter is about 100nm. By
supporting this dispersion on various materials, the Ag+ and Pt4+ derived from metal nanocolloids don’t elute
and represents antimicrobial performance. In a short time, ABCoat reduces microbes such as Escherichia
coli, Staphylococcus aureus, herpes simplex viruses, and adenoviruses. This mechanism of action may be
inactivation by adsorption of nanoparticles to surface of bacteria and viruses.
