Sham safety – methods that do not work:
Nanosilver. Antimicrobial methods that work with silver do not work or are insufficiently effective:
Silver ions become depleted within just a few weeks. They react to form silver sulphide, therefore becoming ineffective. (Silver sulphide is commonly known as the dark patina that forms on old silver cutlery).
Furthermore: Nanosilver is particularly problematic to the environment and human health.
Titanium dioxide only functions under UV light.
This method does not work at night, in your pocket or indoors! Furthermore: The effect is uncertain – because the power of titanium dioxide as a catalyst is mainly depleted through destroying the organic plastic in which it is embedded. This problem is well known in expert circles.
Conclusion: Self-disinfection is pointless if it does not work reliably all the time.