| 用X光电子能谱研究人体表皮中二硫键,巯基和黑色素的氧化机理 |
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| 引用本文： | 刘世宏,赵良仲,王当憨.用X光电子能谱研究人体表皮中二硫键,巯基和黑色素的氧化机理[J].化学学报,1983,41(8):716-721. |
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| 作者姓名： | 刘世宏 赵良仲 王当憨 |
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| 作者单位： | 中国科学院化学研究所 |
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| 摘 要： | 本文用XPS分析了人体表皮及其黑色素中硫、氮原子的化学状态;研究了表皮中二硫键、巯基的氧化机理;揭示了黑色素与过氧化氢反应后颜色从棕黑色变成黄棕色,是硫的价态从二价氧化成四价和六价的结果.
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| 关 键 词： | 胱氨酸 氧化 硫 反应机理 氮 皮肤 巯基 Ｘ射线光电子谱法 过氧化氢 色素沉着 |
Study of the oxidation mechanism of disulfide bonds, sulfhydryl groups and melanin in human epidermal skin by X-ray photoelectron spectroscopy |
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| LIU SHIHONG,ZHAO LIANGZHONG,WANG DANGHAN.Study of the oxidation mechanism of disulfide bonds, sulfhydryl groups and melanin in human epidermal skin by X-ray photoelectron spectroscopy[J].Acta Chimica Sinica,1983,41(8):716-721. |
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| Authors: | LIU SHIHONG ZHAO LIANGZHONG WANG DANGHAN |
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| Abstract: | X-ray photoelectron spectroscopy (XPS) has been used to study the chemical states of the sulfur and nitrogen atoms in human epidermal skin and melanin it contained, as well as the oxidation mechanism of the disulfide bonds and sulfhydryl groups. It shows that when melanin is treated with hydrogen peroxide, the valence of the sulfor atoms changes from two to four and six while the colour changes from brownish-black to yellowish-brown. |
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| Keywords: | CYSTINE OXIDATION SULFUR REACTION MECHANISM NITROGEN SKIN MERCAPTO GROUP X-RAY PHOTOELECTRON SPECTROMETRY HYDROGEN PEROXIDE PIGMENTATION |
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