As an Amazon Associate, we earn from qualifying purchases. TweakTown may also earn commissions from other affiliate partners at no extra cost to you.
When you go and think about places in public that would be coated in everyone's germs, what's the first place you think of? I think of public bathroom door handles.
I'm probably not alone in doing this, but when I'm at a public bathroom, I will try to completely avoid touching the entrance and exit door handle, as I know it's covered in everybody's germs. Luckily, my problem could soon be solved as two students out of China have managed to create a self-cleaning door handle.
The door handle uses ultraviolet light to keep itself germ-free. It has aluminum handles at either end and a thin layer of titanium dioxide covering the glass. When the ultraviolet light is enabled, it triggers a chemical reaction that kills off 99.8% of the germs present. How does the UV light turn on? Easy. The two graduate students thought of that and equipped the door handle with a small generator that uses the kinetic energy of the door opening and closing to power itself. What an incredible invention!