City University of Hong Kong
According to a recent Medgadget article, researchers at City University of Hong Kong have developed a self-charging face mask that can replenish its electrostatic charge through the wearer's breathing action. The mask, made from two triboelectric nylon fabric layers, generates an electric charge as the layers move back and forth during breathing, maintaining its ability to adsorb tiny particles, such as SARS-CoV-2 viruses, for much longer than conventional masks. The technology can provide enhanced protection for healthcare staff, while reducing waste.
