PJB-2018-804
APPLICATIONS AND PHYSICOCHEMICAL MECHANISMS OF A 632.8NM OF HE-NE LASER IN BIOLOGICAL MEDICINE AND PLANT ABIOTIC STRESS
LIMEI GAO
Abstract
Helium-Neon (He-Ne) laser (wavelength λ=632.8nm) is a continuous mode of low energy red light. To date, He-Ne laser as the most commonly used laser in low level laser therapy (LLLT) studies has attracted considerable recognition by physiotherapists, dentists, dermatologists, rheumatologists and other specialists, as well as general practitioners. The suitable dosage of He-Ne laser irradiation has been also shown to play a positive role in accelerating plant growth and metabolism. Moreover, previous studies have illustrated that He-Ne laser pretreatment not only protect plant cells against unfavorable natural stressors-induced injuries or lesions, but also had repair effects on plant seedlings damages by elevated UV-B radiation. Nevertheless, the underlying interactive mechanisms of the biological effects of He-Ne laser on cell proliferation or secondary physiological metabolism in organism livings are unknown. In this review, we describe the physicochemical properties and favorable biological effects of He-Ne laser on living organisms, and discuss its potential application perspective in future.
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