Growth of calcium oxalate monohydrate on uric acid crystals at sustained supersaturation

被引：23

作者：

Bouropoulos, C

Vagenas, N

Klepetsanis, P

Stavropoulos, N

Bouropoulos, N ^{[1
]}

机构：

[1] Univ Patras, Dept Mat Sci, Patras, Greece

[2] Gen Hosp, Dept Urol G Hatzikosta, Ioannina, Greece

[3] Univ Patras, Dept Pharm, Patras, Greece

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 2004年 / 39卷 / 08期

关键词：

calcium oxalate; uric acid; urinary stones; constant supersaturation;

D O I：

10.1002/crat.200310241

中图分类号：

O7 [晶体学];

学科分类号：

0702 [物理学]; 070205 [凝聚态物理]; 0703 [化学]; 080501 [材料物理与化学];

摘要：

The effect of uric acid seeds on calcium oxalate formation was studied at pH 4.50 and 37degreesC using a system providing constant supersaturation with respect to calcium oxalate and saturated in uric acid. In all cases the only solid-phase forming was identified as calcium oxalate monohydrate (COM). Kinetic analysis of the initial rates showed that they were proportional with the relative supersaturation with respect to calcium oxalate monohydrate. The linear dependence of the rate of precipitation of COM on uric acid suggested that growth is mediated through a surface diffusion controlled mechanism.

引用

页码：699 / 704

页数：6

共 21 条

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Asplin JR, 1996, SEMIN NEPHROL, V16, P412

[2]

PHASE-TRANSITION AND EPITAXIES BETWEEN HYDRATED ORTHORHOMBIC AND ANHYDROUS MONOCLINIC URIC-ACID CRYSTALS [J].