Self-powered mobile sterilization and infection control system

With the growing mobility of the world population and the emergence of infectious diseases, the prevention and control of epidemic are particularly important for public health. Here, we report a high-performance and durable triboelectric nanogenerator (TENG) for self-powered medical health improvement. Based on a simple and effective double tribo-layers strategy, the electrical output performance of the TENG is enhanced by about 65% compared with that of traditional single tribo-layer. In addition, by introducing an automatic working mode transition design, the durability of the TENG can be greatly improved. Using the high output voltage of TENG as driven by wind, a self-powered mosquito-killing system and a self-powered ultraviolet sterilization system are further developed to control the mosquito population and bacterial reproduction for reducing the risk of disease transmission. This work not only provides a prospective strategy to improve the electrical and mechanical performance of the TENG, but also expands the application area of the self-powered system to infectious disease prevention.