Teenagers create innovative door handle that kills 99.8 percent of germs

 
Related

Rescued bear, lion and tiger "brothers" refuse to be separated after 15 years together

Puyol Mos
708 points

Human Trials For A Vaccine That Destroys Cancerous Tumors Just Began

Puyol Mos
532 points



Most recent

DistroTV eleva su oferta de canales a más de 270

Comms1
14 points

Hablamos de COVID-19 y sus variantes: El riesgo de muerte se triplica en los pacientes no vacunados

NOTICIAS-ETF
136 points

Tomar fotos haciendo pintura

El diario de Enrique
34 points

Fernando Simón explica por qué se dispararán los contagios de Covid este verano

NOTICIAS-ETF
60 points

Colombianos diversifican inversiones, ante escenarios económicos y sociopolíticos adversos

Image Press
40 points

Hallan en la Antártida superbacterias capaces de generar nuevas enfermedades

NOTICIAS-ETF
22 points

Johnson Controls fortalece la seguridad del sector bancario en América Latina

TECH2022
44 points

Un virólogo del CSIC vaticina cada cuánto tiempo habrá que vacunarse contra el Covid-19

NOTICIAS-ETF
234 points

LAS BOTAS ALTAS DE CAUCHO SON EL PEOR ENEMIGO DE LOS CAMPESINOS

Image Press
12 points

Simplemente Gracias, la nueva apuesta de LOS TRI-O por la música romántica

TECH2022
26 points
SHARE
TWEET
A couple of teen geniuses from Hong Kong have invented a product that could revolutionize the world of hygiene and infection control. They’ve created a door handle that instantly destroys germs every time it is touched by human hands.

Teenagers create innovative door handle that kills 99.8 percent of germs

The two kids – 17-year-old Sun Ming (‘Simon’) Wong and 18-year-old King Pong (‘Michael’) Li – are students at Tam Lee Lai Fun Memorial Secondary School, in Tuen Mun, China. They realised that everyday objects such as doorknobs, handrails, shopping cart handles, and counter-tops are breeding grounds for millions of germs, so they set out to explore the possibility of creating self-disinfecting surfaces that remain germ-free all the time.

After considerable research, Simon and Michael found out that titanium dioxide is an amazing bacteria-killer. So they ground the mineral into a very fine powder to use as a coating for the handle. They also discovered that titanium dioxide is more effective when exposed to ultraviolet (UV) rays. This posed a challenge: sunlight is a natural source of UV rays, but door handles are generally used indoors. So they had to come up with an energy-efficient artificial source of UV rays.

After much thinking, they designed the handle bar in the shape of a cylinder made of clear glass, held on both ends by brackets. In one of the brackets, they placed an LED bulb that emits UV light. The LED doesn’t require external cells; it is powered by a gearbox that attaches to the door. Equipment inside the box converts the door’s motion into electrical power for the LED. So when a person touches the handle to open or close the door, the LED lights up, activating the titanium dioxide and instantly killing all the bacteria transferred during contact.

Simon and Michael put their unique invention to test in a lab, where it proved to be 99.8 percent effective in killing germs. What’s more, it only cost them $13 to produce. The brilliant duo presented the handle at this year’s Intel International Science and Engineering Fair, where it was an astoundingly well received!

Fuente: www.odditycentral.com
SHARE
TWEET
To comment you must log in with your account or sign up!
Featured content