Wednesday, February 2, 2011

ESR study of photoinduced free radicals by visible light in hair and the effects of ascorbic acid (vitamin C)

Synopsis

The ESR spectra of melanin’s free radicals in natural black and red hair have been investigated. It is shown that the ESR spectrum of black hair is slightly asymmetric singlet with g = 2.0037 and ΔH = 0.5 mTl. The ESR spectrum of red hair with g = 2.0053 differs from the spectrum of black hair. Using the method of saturation was shown that ESR spectrum of red hair represents a superposition of two signals: a singlet, relating to the black hair, and a triplet from red hair’s pheomelanin. Under the influence of visible light (blue with ...

ESR study of photoinduced free radicals by visible light in hair and the effects of ascorbic acid (vitamin C) is a post from: Skincare




ESR study of photoinduced free radicals by visible light in hair and the effects of ascorbic acid (vitamin C) via BuzzBlazer.com

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