Biomimetic Crystallization of Unusual Macroporous Calcium Carbonate Spherules in the Presence of Phosphatidylglycerol Vesicles

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• 作者：Xiaohua Liu ; Lixue Zhang ; Yuling Wang ; Cunlan Guo ; Erkang Wang
• 刊名：Crystal Growth & Design
• 出版年：2008
• 出版时间：March 2008
• 年：2008
• 卷：8
• 期：3
• 页码：759 - 762
• 全文大小：583K
• 年卷期：v.8,no.3(March 2008)
• ISSN：1528-7505

文摘

We report the interesting finding that crystallization of calcium carbonate (CaCO₃) in the presence of dimyristoylphosphatidylglycerol (DMPG) vesicles by a simple gas diffusion method results in the formation of unusual microscopic CaCO₃ spherules. The experimental results indicate that the as-prepared CaCO₃ spherules, which have a complex macroporous structure, are predominantly vaterite. It is believed that DMPG vesicles play an important role in the process of crystallization, and the possible formation mechanism is proposed.