FIBROUS HYDROXYAPATITE GROWN IN THE GEL SYSTEM - EFFECTS OF PH OF THE SOLUTION ON THE GROWTH-RATE AND MORPHOLOGY

被引:57
作者
TANAHASHI, M
KAMIYA, K
SUZUKI, T
NASU, H
机构
[1] Department of Chemistry for Materials, Faculty of Engineering, Mie University, Mie-ken, 514, Kamihama-cho, Tsu-shi
关键词
D O I
10.1007/BF00702944
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
In the preparation of fibrous hydroxyapatite (HAp), using the gel system consisting of agar gel containing calcium nitrate and over-layered (NH4)2HPO4 solution, the pH of the solution was found to greatly influence the growth rate and morphology of the resultant products. In particular, a pH value of about 9-10 produced straight fibrous HAp in the shortest time. Also, the Ca/P molar ratio of the product increased with the pH value of the starting solution. The growth rate and morphology of the product were correlated to the ion species present in the solution at different pHs.
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页码:48 / 53
页数:6
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