Under the epidemic, Hong Kong people's awareness of personal and environmental hygiene has greatly increased. The public may use bleach, alcohol and hand sanitizer to clean and disinfect their homes and individuals. However, public facilities such as elevator buttons, handrails and other surfaces that are frequently touched by the public must be repeatedly disinfected to effectively kill germs. Moreover, some disinfectants may irritate the skin and damage health. Toxic chemicals may also affect ecosystems with toxins, contaminating drinking water and the environment.
To solve the above problems, researchers are working to develop antibacterial methods that can be used widely.
Prof. Li Pei, who is the professor of PolyU ABCT and the co-founder of Grand Rise Technology successfully developed the “InnoCoatex” with her research team and won awards in the many competitions, including International Exhibition of Inventions of Geneva 2021. “InnoCoatex”has been used in the Government’s isolation facilities and PolyU dormitories.
"InnoCoatex" is a biocompatible antibacterial coating developed with nanotechnology that made of patented chitosan-based core-shell particles with excellent film-forming ability, which can achieve contact killing and protection for up to 6 months. It only needs to be sprayed on the surface of the object, and it dries quickly and does not affect the appearance and texture of the material. It is suitable for a variety of materials, including metal, concrete, wood, glass, plastic and textiles and effectively kills up to 99% of common bacteria. (e.g. Staphylococcus aureus) viruses (e.g. H1N1 and HCOV-229E). InnoCoatex" is harmless to the human body and environmentally friendly, and it can be used for disinfection, pollution control and epidemic prevention.
As one of the few researchers in the world who have mastered layered nanomaterials, Prof. Li has more than 30 years of experience in biomaterials research. Prof. Li is committed to the development of multi-layered nanomaterials technology to facilitate a wider range of applications at the biological and medical levels. With the gradual maturity of nano-synthesis technology, it is expected to benefit the those in need.
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