Research Articles

The Bactericidal Effect of Blue Light

Optimization of the Antimicrobial Effect of Blue Light on Methicillin-Resistant Staphylococcus aureus (MRSA) In Vitro

Published: Lasers in Surgery and Medicine, April 2016


Studies have proven that 405 nm, 415 nm, and 470 nm blue light can suppress growth of S. aureus (i.e. MRSA), E. coli, and other bacteria. This study aims to identify protocols to optimize the antimicrobial effects of blue light against MRSA>


Researchers found that both 405 nm and 470 nm light are effective against Staphylococcus aureus (MRSA) and can result in up to 100% bacterial suppression with proper fluences.