A possible mechanism of low level laser-living cell interaction

K. Lubart, S. Rochkind, T. Fisher, Z. Malik

    Research output: Contribution to journalArticlepeer-review

    64 Scopus citations


    A qualitative E.P.R. (Electron Paramagnetic Resonance) study has been performed to determine the action of Low Level Lasers on living cells. Single I oxygen (1O2) was found to be generated by Friend Erythroleukaemic Cells (FELC) idler irradiating them with a HeNe laser. The production of 1O2 in the cell during irradiation was proved by an C.P R technique. No singlet oxygen is phoioproduccd by irradiating cither cytochrome C or hemin. Singlet oxygen, in small amounts, is very significant in biochemical processes nnd hence can be important in biostimulation. It is proposed that singlet oxygen is pholoproduced by the natural porphyrins in the cell.

    Original languageEnglish
    Pages (from-to)65-68
    Number of pages4
    JournalLaser Therapy
    Issue number2
    StatePublished - 1990


    • E.P.R FELC
    • LLLT (Low Level Laser Therapy)
    • Porphyrins
    • Singlet oxygen


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