A group from Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), University of Cambridge, Cambridge, UK, etc. has reported SARS-CoV-2 is rapidly inactivated by titanium dioxide (TiO2) surface coating
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8450774/
For live SARS-CoV-2, virus was already significantly inactivated on the TiO2 surfaces after 20 min illumination.
After 5 h no detectable active virus remained.
Significantly, SARS-CoV-2 on the untreated surface was still fully infectious at 5 h post-addition of virus.
The coatings would need only periodic re-application depending on the amount of wear, for example 6-12 monthly, and would be widely available in the future.
