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Appl Environ Microbiol. 1990 December; 56(12): 3888-3889

Bactericidal effectiveness of modulated UV light.

Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston.

ABSTRACT

Studies were designed to evaluate the effectiveness of pulsed modulated UV light waveforms for killing bacteria. Exposure of five strains of bacteria to the modulated information encoded in the light decreased the colony population from a confluent lawn to less than 20 colonies. However, approximately 2,000 colonies survived treatment with the same intensity and time of exposure to UV light lacking the modulated information.

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