EUMELANINS AND PHEOMELANINS - CHARACTERIZATION BY ELECTRON-SPIN RESONANCE SPECTROSCOPY
EUMELANINS AND PHEOMELANINS - CHARACTERIZATION BY ELECTRON-SPIN RESONANCE SPECTROSCOPY
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DOI：
10.1126/science.6283638
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发表时间：
1982-01-01
期刊：
影响因子：
56.9
通讯作者：
PROTA, G
中科院分区：
文献类型：
--
作者：
SEALY, RC;HYDE, JS;PROTA, G
合成多巴黑色素和半胱氨酰多巴黑色素具有不同的ESR光谱。报告了这些黑色素混合物和多巴-半胱氨酰多巴共聚物的数据，它们在光谱上是相似的。光谱的简单参数化允许估计混合物中多巴黑色素和半胱氨酰多巴黑色素以及掺入共聚物中的多巴和半胱氨酰多巴的相对量。对几种天然真黑素和褐黑素（来自人的头发、眼睛和鸡羽毛）进行了表征并证明它们是共聚物。
Synthetic dopa melanin and cysteinyldopa melanin have different ESR spectra. Data are reported for mixtures of these melanins and for dopa-cysteinyldopa copolymers, which are spectroscopically similar. A simple parameterization of the spectra allows estimation of the relative amounts of dopa melanin and cysteinyldopa melanin in mixtures and of dopa and cysteinyldopa incorporated into copolymers. Several natural eumelanins and pheomelanins [from human hair and eyes and chicken feathers] were characterized and shown to be copolymers.