UV LED technology is more and more close to our daily life, which can be used to reduce bacteria and improve health. With the development of technology, the application forms of UVC UV LED Sterilization are more and more abundant. For example, since this year, there have been several water cups equipped with UV LED to provide automatic disinfection. At the same time, there are also applications of UAV equipped with UV LED.

Recently, Ultraviolet LED technology has another application form. Some researchers integrate UV LED on the public door handle to provide automatic cleaning and disinfection.

According to reports, two graduate students from the Chinese University of Hong Kong have designed self-cleaning doorknobs and have been selected as the top 20 at the James Dyson award in 2019.

Photo from : James Dyson Award

The two students were inspired by the outbreak of SARS in 2003, when the virus spread through contact, the report said. They designed the self-cleaning door handle to stop the spread of infectious diseases and improve public health.

The team used a thin photocatalytic coating activated by UVC UV LED Light Beads to break down bacteria on the surface of the substrate. Because of the need for a consistent UV light source, they added a generator to provide a stable current to light the UV LED, which can be achieved by opening and closing the door. The transparent glass doorknob will reflect light to activate the coating on the outer surface, so that the doorknob can be disinfected and cleaned by itself.

The two researchers said they aimed to commercialize the product and hoped that the door handle could be used in shopping malls, hotels, hospitals, public bathrooms and other public places with high risk of infection.