Synthesis of a cagelike hollow aluminosilicate with vermiculate micro-through-holes and its application to ship-in-bottle encapsulation of protein.
Synthesis of a cagelike hollow aluminosilicate with vermiculate micro-through-holes and its application to ship-in-bottle encapsulation of protein.
复制标题
DOI:
10.1002/smll.200800834
复制
发表时间:
2009
期刊:
影响因子:
13.3
通讯作者:
Toru Shiomi;T. Tsunoda;A. Kawai;S. Matsuura;F. Mizukami;K. Sakaguchi
中科院分区:
文献类型:
--
作者:
Toru Shiomi;T. Tsunoda;A. Kawai;S. Matsuura;F. Mizukami;K. Sakaguchi
Hollow inorganic structures have received increasing attention because of their potential applications, such as inorganic catalyst carriers, optical sensing systems, storage capsules, and controlled-release systems for drug delivery.[1] The functional use of hollow structures is closely correlated with their morphological properties, that is, the exterior shape, the interior space, and the shell structure.[2] In particular, the architectural design of through-holes connecting the inner and outer spaces of hollow structures is indispensable for transporting desirable molecules.[3] For example, diffusion through closed-shell structures with pores< 10 nm in diameter is often a slow process.[4] Biomacromolecules, such as proteins and DNA, cannot effectively penetrate into the interior spaces of hollow particles through the conventional mesopores present on the shells. To increase the permeability and create the ability to store biomacromolecules, it is desirable to build micro-through-holes on the shells of inorganic hollow structures.Most fabrication methods employed in the development of hollow inorganic nano-and microstructures have been based on direct template methods that use sacrificial core materials to create interior space, and then the shell structure is built by repeating a layer-by-layer deposition process.[5] However, so