Layer-by-Layer Assembled Nanotubes as Biomimetic Nanoreactors for Calcium Carbonate Deposition

被引：21
作者：
He, Qiang [2 ]
Moehwald, Helmuth [2 ]
Li, Junbai [1 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Int Joint Lab, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China
[2] Max Planck Inst Colloids & Interfaces, D-14476 Potsdam, Germany
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2009年 / 30卷 / 18期
关键词：
biomimetic; biomineralization; layer-by-layer; nanotubes; nanoreactors; UREASE ENCAPSULATION; METAL NANOWIRES; PRECIPITATION; FABRICATION; MINERALIZATION; MICROCAPSULES; CAPSULES; SYSTEMS; CACO3;
D O I：
10.1002/marc.200900261
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Enzyme-loaded magnetic polyelectrolyte multilayer nanotubes prepared by layer-by-layer assembly combined with the porous template could be used as biomimetic nanoreactors. It is demonstrated that calcium carbonate can be biomimetically synthesized inside the cavities of the polyelectrolyte nanotubes by the catalysis of urease, and the size of the calcium carbonate precipitates was controlled by the cavity dimensions. The metastable structure of the calcium carbonate precipitates inside the nanotubes was protected by the outer shell of the polyelectrolyte multilayers. These features may allow polyelectrolyte nanotubes to be applied in the fields of nanomaterials synthesis, controlled release, and drug delivery.
引用
收藏
页码：1538 / 1542
页数：5
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