琼脂糖性质对凝胶电泳法分离金属性和半导体性单壁碳纳米管的影响

高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (11): 2190.

琼脂糖性质对凝胶电泳法分离金属性和半导体性单壁碳纳米管的影响

张静1,2, 温晓南1,2, 李红波2, 金赫华2, 宋启军1, 李清文2

1. 江南大学化学与材料工程学院, 无锡 214000;
2. 中国科学院苏州纳米技术与纳米仿生研究所纳米功能材料研究组, 苏州 215125

收稿日期:2010-03-08 出版日期:2010-11-10 发布日期:2010-11-10
通讯作者: 宋启军. E-mail: qsong@jiangnan.edu.cn; 李清文. E-mail: qwli2007@sinano.ac.cn
基金资助:
国家自然科学基金青年基金(批准号: 20903069)和科技部国际合作项目(批准号: 2009DFB50150)资助.

Effect of Agarose Properties on the Separation of m-SWCNTs and s-SWCNTs by the AGE

ZHANG Jing1,2, WEN Xiao-Nan1,2, LI Hong-Bo2, JIN He-Hua2, SONG Qi-Jun1*, LI Qing-Wen2*

1. School of Chemistry and Material Engineering, Jiangnan University, Wuxi 214000, China;
2. Functional Nanomaterials Group, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215125, China

Received:2010-03-08 Online:2010-11-10 Published:2010-11-10
Contact: SONG Qi-Jun. E-mail: qsong@jiangnan.edu.cn; LI Qing-Wen. E-mail: qwli2007@sinano.ac.cn
Supported by:
国家自然科学基金青年基金(批准号: 20903069)和科技部国际合作项目(批准号: 2009DFB50150)资助.

摘要/Abstract

摘要： 利用琼脂糖凝胶电泳分离单壁碳纳米管(SWCNTs)技术, 考察了MB, Agarose, Agarose B和LRU 4种琼脂糖对SWCNTs分离效率的影响. 紫外-可见-近红外(UV-Vis-NIR)吸收光谱研究结果表明, 不同的琼脂糖对SWCNTs中s-SWCNTs的分离效率影响较小, 而对m-SWCNTs的分离效率影响较大. 分析4种琼脂糖凝胶的凝胶强度和凝胶网孔尺寸等发现, 影响SWCNTs中m-SWCNTs分离效率的主要因素是琼脂糖的凝胶强度和琼脂糖凝胶形成的网孔尺寸, 小的凝胶网孔尺寸有利于m-SWCNTs富集, 高凝胶强度则不利于其富集.

关键词: 单壁碳纳米管, 分离, 琼脂糖凝胶电泳, 凝胶强度, 网孔尺寸

Abstract: The agarose gel electrophoresis(AGE) is one of the low-cost, large-scale technologies for the separation of metallic single-walled carbon nanotubes(m-SWCNTs) and semiconducting single-walled carbon nanotubes(s-SWCNTs). In this paper, AGE technique was used to investigate the influence of the properties of MB, Agarose, Agarose B and LRU on the separating efficiency of SWCNTs. By characterizing their UV-Vis-NIR absorption spectra, we found that different agarose had little influence on the separating efficiency of s-SWCNTs, and had a great effect on the separating efficiency of m-SWCNTs. Furthermore, by comparing the properties of differents agarose gel including gel strength, mesh size and so on, we consider that the major factors in separating efficiency of m-SWCNTs are the gel strength and gel mesh size. The results indicate that the smaller mesh size of the gel is favorable to the enrichment of m-SWCNTs, while the higher gel strength is unfavorable.

Key words: Single-walled carbon nanotube, Separation, Agarose gel electrophoresis(AGE), Gel strength, Mesh size

TrendMD:

张静, 温晓南, 李红波, 金赫华, 宋启军, 李清文. 琼脂糖性质对凝胶电泳法分离金属性和半导体性单壁碳纳米管的影响. 高等学校化学学报, 2010, 31(11): 2190.

ZHANG Jing, WEN Xiao-Nan, LI Hong-Bo, JIN He-Hua, SONG Qi-Jun*, LI Qing-Wen*. Effect of Agarose Properties on the Separation of m-SWCNTs and s-SWCNTs by the AGE. Chem. J. Chinese Universities, 2010, 31(11): 2190.

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