According to scientists a simple hand-held torch-like device can swiftly kill dangerous bacteria, offering a potential boon for emergency workers battling infection risks in wars or disaster zones. The device was created by an international team of researchers from China’s Huazhong University of Science and Technology, Australia’s CSIRO Materials Science and Engineering, the University of Sydney and the City University of Hong Kong.
The “plasma flashlight” delivers a charged, or ionised, jet of gas to zap germs, a team of researchers in China, Australia and Hong Kong said in their study. Hot plasma sterilisers are already used to disinfect surgical instruments, but they are expensive, refrigerator-sized devices that operate at high temperatures. Sterilisers that op