期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 10, 期 3, 页码 722-727出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201403294
关键词
hollow mesoporous silica; hydrophilic; imprinting; mesoporous materials; microspheres; real aqueous media
资金
- National Natural Science Foundation of China [21336005, 21301125]
- National Science and Technology Pillar Program [2012BAC14B03]
- Natural Science Foundation of Jiangsu Province [BK2012625]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [13KJB430022]
- Suzhou Nano-project [ZXG201420]
Hydrophilic molecularly imprinted microspheres (MIP@SiO2) for the adsorption of water-soluble molecules in real aqueous samples were successfully synthesized. In this strategy, a molecular imprinted polymer (MIP) was encapsulated in the hollow core of hollow mesoporous silica (HMS) particles via a ship-in-a-bottle' process. As the HMS shell contains plenty of Si-OH groups, the as-prepared microspheres proved to be hydrophilic and could be well dispersed in water. On the other hand, the MIP encapsulated in the HMS could specifically recognize small molecules with good binding efficiency through the mesoporous silica shell. Binding experiments in real aqueous solutions showed that the MIP@SiO2 composites have excellent recognition ability for specific molecules. Thus, MIP@SiO2 are highly promising alternatives to biological receptors with great potential for many analytical applications, such as environmental, food, and clinical analyses and other areas.
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