title: [Is the coherence of low-intensity laser light essential for its effect on biological objects?].
abstract: Low-intensity laser light coherence is considered in relation to biological objects under normal physiological conditions. Estimations show that the excitation rate (the rate of coherent states generation) of typical biomolecules in visible range (sigma abs = 10(-17) cm2, I = 10(-3) W/cm2) is 10(12)-10(13) times lower than that of their phase relaxation. It means that the role of coherent interaction processes is negligible. This conclusion is confirmed by the experimental results obtained with living cells of different types.
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D004247:DNA / Q000096:biosynthesis / Q000528:radiation effects*; D004269:DNA, Bacterial / Q000096:biosynthesis / Q000528:radiation effects; D004271:DNA, Fungal / Q000096:biosynthesis / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D004926:Escherichia coli / Q000378:metabolism / Q000528:radiation effects; D006367:HeLa Cells; D006801:Humans; D007834:Lasers; D055095:Optics and Photonics; D010777:Photochemistry; D012440:Saccharomyces / Q000378:metabolism / Q000528:radiation effects
chemical_list: D004269:DNA, Bacterial; D004271:DNA, Fungal; D004247:DNA
vernacular_title: Sushchestvenna li kogerentnost' nizkointensivnogo lazernogo sveta pri ego vozdeĭstvii na biologicheskie ob''ekty?