Functionalization of carbon nanotubes regulated with amino acids

被引：14

作者：

Hu, Jingting ^{[2
]}

Li, Lili ^{[2
]}

Feng, Wei ^{[2
]}

Ji, Peijun ^{[1
]}

机构：

[1] Beijing Inst Chem Technol, Dept Chem Engn, Beijing 100029, Peoples R China

[2] Beijing Inst Chem Technol, Dept Biochem Engn, Beijing 100029, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2012年 / 407卷

基金：

美国国家科学基金会;

关键词：

Sugar-based amphiphile; Carbon nanotubes; Self-assembly; Amino acids; SPECTROSCOPY; AMPHIPHILES; GLUCOSE; PROTEIN;

D O I：

10.1016/j.colsurfa.2012.04.043

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new approach has been developed for the functionalization of multi-walled carbon nanotubes (MWNTs). The self-assembly of a sugar-based amphiphile on MWNTs was carried out in amino acid solutions. The functionalization of MWNTs has been investigated by means of UV-vis, Raman spectra, FTIR, XPS, XRD, and HRTEM. It has been found that amino acids can promote the self-assembly of the amphiphile on MWNTs and regulate the amount and conformation of the assembled amphiphile. The effect of amino acids on the aggregation of the sugar-based amphiphile on MWNTs was analyzed through FTIR spectra. The specific interactions of f-MWNTs with the protein concanavalin A were investigated through the measurement of UV-vis spectra. This work demonstrates that, the functionalized MWNTs with disaccharide groups on their exterior surface have a good dispersibility in water and are biocompatible, and may have a potential application of biomolecular recognition. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：16 / 22

页数：7

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