First Light-Activated Antimicrobial Surface

A team of scientists at the University College London (UCL) have developed a new antibacterial material that could help cut hospital-acquired infections. They used a combination of two dyes with nanoscopic particles of gold, which, they say, is deadly to bacteria when activated by light, including average indoor lighting. And, in a first for this type of substance, it has also shown impressive antibacterial properties in total darkness.