A new peer-reviewed study published in Applied Microbiology and Biotechnology evaluated the effectiveness of visible light in the 400-420 nm range for the inactivation of Mycobacterium tuberculosis (Mtb), the bacterium responsible for tuberculosis.

A new preprint study conducted by the University of Salerno tested the effectiveness of visible blue-violet light (400-420 nm, UV-free) on beef hamburgers during normal handling operations, simulating real conditions in professional kitchens and food processing facilities.