Laser-Induced Graphene Mask (IMAGE) City University of Hong Kong Caption Dr Ye's team uses the CO2 infrared laser system to generate graphene. Experiment results show that the graphene they produced exhibit a much better anti-bacterial efficiency than activated carbon fibre and melt-blown fabrics. Credit City University of Hong Kong Usage Restrictions Image must only be used with appropriate caption and credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.