Functionalization of carbon nanotubes for biocompatibility and biomolecular recognition

被引:735
作者
Shim, M [1 ]
Kam, NWS [1 ]
Chen, RJ [1 ]
Li, YM [1 ]
Dai, HJ [1 ]
机构
[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA
关键词
D O I
10.1021/nl015692j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The interface between biological molecules and novel nanomaterials is important to developing new types of miniature devices for biological applications. Here, the streptavidin/biotin system is used to investigate the adsorption behavior of proteins on the sides of single-walled carbon nanotubes (SWNTs). Functionalization of SWNTs by coadsorption of a surfactant and poly(ethylene glycol) is found to be effective in resisting nonspecific adsorption of streptavidin. Specific binding of streptavidin onto SWNTs is achieved by co-functionalization of nanotubes with biotin and protein-resistant polymers.
引用
收藏
页码:285 / 288
页数:4
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