高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (11): 1937.

• 论文 • 上一篇    下一篇

壳聚糖固定化亚铁Schiff碱配合物的研究

郎惠云, 张秀军, 申烨华, 魏永锋   

  1. 西北大学化学系, 西安 710069
  • 收稿日期:2002-12-27 出版日期:2003-11-24 发布日期:2003-11-24
  • 通讯作者: 郎惠云(1942年出生),女,教授,从事药物分析和医用敷料的研究,E-mail:11641@sina.com E-mail:11641@sina.com
  • 基金资助:

    陕西省科委自然科学基金(批准号:01H10和02B09)资助

Synthesis and Characterization of the Complex of Chitosan-immobilization Ferrous-N-salicylidene Glycine Schiff Base

LANG Hui-Yun, ZHANG Xiu-Jun, SHEN Ye-Hua, WEI Yong-Feng   

  1. Department of Chemistry, Northwest University, Xi′an 710069, China
  • Received:2002-12-27 Online:2003-11-24 Published:2003-11-24

摘要: 利用具有多种生物医用活性的高分子壳聚糖的轴向配位作用合成了壳聚糖-N-亚水杨基氨基酸Schiff碱亚铁配合物,采用IR光谱、元素分析、荧光光谱、紫外-可见吸收光谱和热分析等分析手段对配体及高分子配合物进行了表征,推测了其结构.以核黄素光化学氧化-羟胺-偶氮比色法研究了该化合物对超氧离子自由基的清除能力.结果表明,壳聚糖固定化的N-亚水杨基氨基酸Schiff碱亚铁配合物对超氧离子自由基的清除能力有所降低,但仍具有较强的抑制作用.

关键词: 壳聚糖, 亚水杨基甘氨酸Schiff碱, 亚铁配合物, 超氧离子自由基, 清除

Abstract: Chitosan′s ramification derived from chitosan and the schiff base and their ferrous complex have been synthesized and characterized by elementary analysis, IRand UV-Vis spectra, fluorescence spectrophotometry and thermal analysis.The Schiff base was derived from salicyl aldehyde and glycine.It was found that the coordination is realized through binding of Nin chitosan with the Fe(Ⅱ) in ferrous N-salicylidene glycine complex.The effect of this complex on the elimination of superoxide anion waSInvestigated by the decrease in the absorbance at 550nm in the system of vitamin B2-hydroxylamine-anilinesulfonic acid-N-(1-naphthyl)ethylenediamine.Comparing the effect of ferrous N-salicylidene glycine complex on the elimination of superoxide anion with chitosan-ferrous-Schiff base complex′, it was found that the eliminative effect of the chitosan-ferrous-schiff base complex decreased in a sort, but still remained the stronger ability of eliminating superoxide anion.

Key words: Chitosan, N-Salicylidene glycine Schiff base, Ferrous complex, Superoxide anion free radical, Scavenging

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