Hong Kong PolyU develops new material that can effectively kill surface novel coronavirus

　　Xinhua News Agency, Hong Kong, January 13. The Hong Kong Polytechnic University ("PolyU") announced on the 13th that the school's interdisciplinary research team has successfully developed a new material that can effectively kill the surface new coronavirus and most common diseases. Viruses and bacteria.

　　According to PolyU researchers, the material is called "anti-virus 3D printing material". The main component is resin, with the addition of anti-virus components such as cationic compounds, which can pierce the cell membrane of the virus and destroy its structure to kill viruses and bacteria. .

　　Associate Professor Lu Junyu of PolyU's Department of Textiles and Clothing, who led the team, said that laboratory tests confirmed that the material can kill 70% of the novel coronavirus and other viruses and bacteria that survive on the surface of objects within two minutes, and the anti-virus rate within 10 minutes is even higher. Up to 90%, almost all viruses and bacteria on the surface can be killed within 20 minutes.

　　Lu Junyu said that the material is a resin material with high anti-virus performance. It can be produced in different shapes using 3D printing technology. It can be widely used in public facilities for different needs to provide epidemic prevention support for the community.

In terms of cost, about 10 lift buttons can be made by 3D printing within 10 minutes, and the material cost is about HK$10.

　　In the past year, the PolyU team has cooperated with the Home Affairs Department of the Hong Kong Special Administrative Region Government and the Hong Kong Wetland Park, etc., to make the material into recycling bin handles, toilet door handle protectors, lift buttons and Braille boards, etc., to test the resistance of the material in the field. Viral performance and durability.

　　Team member Professor Chien Chi-wai of PolyU's Department of Textiles and Clothing said that the handle of the recycling box has not been damaged after nearly a year of use, and no new coronavirus, Escherichia coli and Staphylococcus aureus have been detected on its surface, which proves that the material has stable anti-virus and bacterial properties. efficacy.

Its efficacy began to gradually diminish after 3 years of use.

　　The PolyU team is currently applying for patents for related technologies.