I'm sceptical myself that the tiny generator they have could produce enough energy, and that the coating they have won't be more of a hassle, but the idea is reasonable
https://pmc.ncbi.nlm.nih.gov/articles/PMC7999369/
OTOH, cheap or antique alloys may have lead, so....
Awards - Elevator Pitch Competion 2018
Where are they now - Self-Sanitising Door Handle, 2019 Hong Kong James Dyson Award winner https://www.youtube.com/watch?v=xiLPyOKRcJo
https://en.wikipedia.org/wiki/Antimicrobial_copper-alloy_tou...
ndegruchy•3d ago