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A technology for preparing bio-inspired antibacterial surfaces
Date:27/12/2017 Article: Photo:

Prof. Huan Hu recently developed a technology for preparing bio-inspired antibacterial surfaces in collaboration with IBM T. J. Watson Research Centers in the United States. This technology, inspired by the observation that the wings of insects, such as dragonflies and Cicadas, use small nanospikes with diameters around 100nm to kill bacteria and inhibit bacterial growth. Traditional antibacterial surfaces use chemicals or antibiotics to treat surfaces and often lose properties quickly and even lead to the development of resistance against antibiotics in bacteria. The bacteria with the capability to fight against antibiotics can become the  “superbugs” posing great threat to human society. Therefore, developing new strategies to kill bacteria, other than using antibiotics, is critically important. The technology Prof. Huan Hu of the ZJUI Institute, developed together with IBM T. J. Watson Research Center, can produce bio-inspired nanospikes on silicon wafers in a low-cost and scalable way. This surface can kill more than 2/3 of the bacteria in biologica tests and inhibit bacteria growth. It is very promising in biomedical application such as surgical tools, implantable devices and public touch surfaces. This work has been published in the internationally-recognized journal - Applied Physics Letters, https://doi.org/10.1063/1.5003817