Abstract
The light-oxygen effect consists in a direct excitation of molecular oxygen dissolved in aqueous media of biosystems by the light; it provides the possibility to use lasers for therapeutic purposes. The wavelength of the used light should strictly correspond to the oxygen absorption bands. However, laser therapy also makes use of lasers emitting at 0.89 µm (outside the known oxygen bands), which suggests the action of a new photoreceptor. Here we argue that this mechanism of photoreception is a modification of the light-oxygen effect involving the absorption of photon simultaneously by the oxygen molecule and O-H stretch of the H20 molecule of liquid water.
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Zakharov, S.D., Thanh, N.C. Combined absorption of light in the process of photoactivation of biosystems. J Russ Laser Res 29, 558–563 (2008). https://doi.org/10.1007/s10946-008-9043-0
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DOI: https://doi.org/10.1007/s10946-008-9043-0