化学学报 ›› 1983, Vol. 41 ›› Issue (8): 716-721. 上一篇    下一篇

研究论文

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

刘世宏;赵良仲;王当憨   

  1. 中国科学院化学研究所
  • 发布日期:1983-08-15

Study of the oxidation mechanism of disulfide bonds, sulfhydryl groups and melanin in human epidermal skin by X-ray photoelectron spectroscopy

LIU SHIHONG;ZHAO LIANGZHONG;WANG DANGHAN   

  • Published:1983-08-15

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

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.

Key words: CYSTINE, OXIDATION, SULFUR, REACTION MECHANISM, NITROGEN, SKIN, MERCAPTO GROUP, X-RAY PHOTOELECTRON SPECTROMETRY, HYDROGEN PEROXIDE, PIGMENTATION

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