Hong Kong PolyU develops compounds that can kill the new coronavirus, 3D-printed door handles help prevent epidemics

The Hong Kong Polytechnic University has successfully developed a material that can kill the COVID-19 virus. This material can be made into door handles, elevator buttons or antibacterial protective covers, which can kill almost all viruses and germs within 20 minutes.

Hong Kong TVB reported on the 13th that PolyU researchers first discovered compounds that can pierce virus cell membranes, such as positively charged cations, several years ago. A year and a half ago, the Department of Textiles and Clothing on campus led an interdisciplinary team to combine related compounds with resins to make translucent antibacterial films.

Studies have found that the film can kill almost all viruses and germs within 20 minutes, including COVID-19 virus, Staphylococcus aureus and Escherichia coli. The antibacterial film can kill 90% of viruses and bacteria within one year, and is effective within 3 years.

PolyU research teams have used 3D printing technology to make these antibacterial materials into door handles, elevator buttons or protective covers. The protective case costs about HK$20, and the elevator buttons are less than HK$10.

The report quoted Wen Xiaozhong, Dean of the Faculty of Engineering of PolyU, as saying that appliances made of these materials can be touched by people for several years, and have anti-toxic and anti-bacterial functions.

The research team has been invited by the Sham Shui Po Official Home Affairs Office to manufacture door handle sheaths for more than 100 unmanaged old residential buildings in the district to prevent the spread of the COVID-19 virus.

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