Flowerlike agglomerates of calcium carbonate crystals formed on an eggshell membrane

被引：42

作者：

Takiguchi, Masakazu ^{[1
]}

Igarashi, Koichi ^{[1
]}

Azuma, Masayuki ^{[1
]}

Ooshima, Hiroshi ^{[1
]}

机构：

[1] Osaka City Univ, Grad Sch Engn, Sumiyoshi Ku, Osaka 5588585, Japan

来源：

CRYSTAL GROWTH & DESIGN | 2006年 / 6卷 / 12期

关键词：

D O I：

10.1021/cg0604576

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

Calcium carbonate was crystallized on an eggshell membrane using a specially designed crystallizer. The crystallizer used was a jacketed cylindrical glass vessel with two compartments divided by an eggshell membrane. The calcium chloride and sodium carbonate solutions were separately placed in the two compartments. Several kinds of peculiar agglomerates of calcium carbonate crystals formed on both surfaces of the eggshell membrane. Flowerlike agglomerates formed on the inner surface of the eggshell membrane that is the egg white side, but those were not formed on the outer surface of the membrane. The flowerlike agglomerate was composed of a hemispherical core and petal-like crystals growing around the core. We named it the CC ( calcium carbonate)-flower. The different types of agglomerates formed on the outer surface of the membrane. For instance, when the outer surface of the membrane faced the calcium chloride solution, spherical agglomerates composed of long, needlelike crystals were obtained. We inferred that the surface structure of the eggshell membrane played an important role for the formation of such peculiar agglomerates.

引用

页码：2754 / 2757

页数：4

共 4 条

[1]

Controlled deposition of thin films of calcium carbonate on natural and synthetic templates [J].