How about this... let's hear it for the Cicada who led the researchers to this amazing substance.
Germ-killing nanosurface opens up new front in hygiene
AFP - Imagine a hospital room, door handle or kitchen countertop that is free from bacteria -- and not one drop of disinfectant or boiling water or dose of microwaves has been needed to zap the germs.
That is the idea behind a startling discovery made by scientists in Australia
http://www.france24.com/en/20131126-germ-killing-nanosurface-opens-new-front-hygiene