ELECTRON-SPIN RESONANCE OF MELANIN FROM HAIR - EFFECTS OF TEMPERATURE, PH AND LIGHT IRRADIATION
ELECTRON-SPIN RESONANCE OF MELANIN FROM HAIR - EFFECTS OF TEMPERATURE, PH AND LIGHT IRRADIATION
复制标题
DOI：
10.1111/j.1751-1097.1983.tb03857.x
复制
发表时间：
1983-01-01
影响因子：
3.3
通讯作者：
LANG, G
中科院分区：
文献类型：
--
作者：
ARNAUD, R;PERBET, G;LANG, G
本文研究了日本人黑发水合黑色素粉末的ESR信号随温度、pH值和光照的变化。结果的解释提出了醌氢醌型复合物和黑色素及其半醌自由基的酸碱平衡的基础上。在暴露于波长254-600 nm的光期间，观察到稳定和不稳定的自由基。确定了形成稳定黑色素自由基的作用光谱。
The variation with temperature, pH and light of the ESR signal of hydrated melanin powders from Japanese black hair was studied. An explanation of the results is proposed on the basis of quinhydrone type complexes and of acid-base equilibria of melanin and its semiquinone radicals. During exposure to light of wavelengths 254-600 nm, both stable and unstable radicals have been observed. The action spectrum for the formation of stable melanin radicals has been determined.