Role of various wavelengths in phototherapy

R. Lubart, Y. Wollman, H. Friedmann, S. Rochkind, I. Laulicht

Research output: Contribution to journalConference articlepeer-review


The effect of 632 nm and 360 nm light on NIH fibroblast cells was examined. Mitosis counts of irradiated cells at various energy doses were taken. Scanning Electron Micrographs of these cells enriched and nonenriched with porphyrins were studied. It is suggested that low-level laser therapy (LLLT) in the visible and in the far infra-red region is due to cell respiration stimulation by either the endogeneous porphyrins in the cell, or by the cytochromes.

Original languageEnglish
Pages (from-to)140-146
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1991
EventProceedings of Lasers in Dermatology and Tissue Weldings - Los Angeles, CA, USA
Duration: 21 Jan 199122 Jan 1991


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