new ways for sterilzising lab's instrument?

Answer 1

I like to use an accelearated hydrogen peroxide solution as it is any sporocideal, and antiviral as well as antibacterial. The preparation I use is made by Virox

We use it for cleaning cell culture equipment and it can be used for sterilzing instriments

Answer 2

UV rays? Not effective.
The old fashioned ways (water as in simple boiling or as pressured steam in autoclaving ) and heat (oven) are still the cheapest.
If you invent a cost effective way and manufacture such a machine, you will be the next billionaire.