Metal-ion environment in solid Mn(II), Co(II) and Ni(II) hyaluronates

被引：19
作者：
Pirc, ET
Arcon, I
Kodre, A
Bukovec, P
机构：
[1] Fac Chem & Chem Technol, SI-1000 Ljubljana, Slovenia
[2] Nova Gorica Polytech, SI-5000 Nova Gorica, Slovenia
[3] Jozef Stefan Inst, SI-1000 Ljubljana, Slovenia
[4] Univ Ljubljana, Fac Math & Phys, Ljubljana 61000, Slovenia
来源：
CARBOHYDRATE RESEARCH | 2004年 / 339卷 / 15期
关键词：
metal hyaluronate; EXAFS; FTIR; conformation;
D O I：
10.1016/j.carres.2004.07.025
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Amorphous powders and films of some metal hyaluronate complexes of general composition (C14H20O11N)(2)center dot xH(2)O (M = Mn2+, Ni2+ and Co2+) have been prepared at pH 5.5-6.0. The coordination geometry around the metal ions has been analyzed)y EXAFS (extended X-ray absorption fine structure) and FTIR spectroscopy. Mn2+, Ni2+, and Co2+ ions are coordinated to carboxylate oxygen atoms and water molecules. The process of local geometry formation round the metal ions is sensitive to sample preparation. 2004 Elsevier Ltd. All rights reserved.
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页码：2549 / 2554
页数：6
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