Self Sanitizing Door Handle Dyson
For those who don’t know, Ultraviolet germicidal irradiation (UVGI) uses short-wavelength ultraviolet light to kill or inactivate microorganisms by destroying nucleic acids and disrupting their DNA, leaving them unable to perform vital cellular functions. Students Sum Ming Wong and Kin Pong Li have decided to take this technology and integrate it directly into a door handle. Read more for a video and additional information.

The handle itself is basically a glass tube covered in a powdered photocatalytic coating made from titanium dioxide with aluminum caps at each end. UV light reacts with this thin coating on the glass tube, powered by an internal generator. Kinetic energy from the motion of the door is converted into light energy to ensure that at least 99.8% of the bacteria on the handle is killed immediately after each use.

Scientific Explorer Disgusting Science Kit
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Scientific Explorer Disgusting Science Kit
  • Educate your child on what actually grows on their own body
  • Learn fun facts about body parts, byproducts and become completely grossed out as you take science to a whole new level
  • Create a stinky intestine, slimy snot, fake blood and learn how to grow friendly molds and bacteria
  • Includes 4 petri dishes, magnifier, 4 cotton swabs, gelatin, sugar, baking yeast, red and green coloring, rubber balloon, plastic bag and guide
  • Recommended for children 8 years of age and older with adult supervision