通过肽包裹分离单根氮化硼纳米管。

Isolation of individual boron nitride nanotubes via peptide wrapping.

机构信息

Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan.

出版信息

J Am Chem Soc. 2010 Apr 14;132(14):4976-7. doi: 10.1021/ja910244b.

DOI:10.1021/ja910244b

PMID:20297821

Abstract

The isolation of individual boron nitride nanotubes (BNNTs) in aqueous phases has been achieved for the first time from raw materials based on the combination of peptide wrapping with a sonication procedure. Atomic force microscopic observations revealed the representative height and length of individual BNNTs. Fluorescence and infrared absorption spectra suggested the strong pi-pi interactions between BNNTs and the peptide. The absorption maxima of BNNTs were significantly blue-shifted from 200 nm for the original BNNTs to 193 nm. The modulation of the BNNT band gap with peptide wrapping promises potential applications of the peptide/BNNT complexes to various nanotechnologies.

摘要

首次成功地从基于肽包裹与超声处理相结合的原料中在水相中分离出单个氮化硼纳米管（BNNTs）。原子力显微镜观察揭示了单个 BNNTs 的代表性高度和长度。荧光和红外吸收光谱表明 BNNTs 与肽之间存在强烈的 pi-pi 相互作用。与原始 BNNTs 的 200nm 相比，BNNTs 的吸收最大值明显蓝移至 193nm。肽包裹对 BNNT 带隙的调制有望使肽/BNNT 复合物在各种纳米技术中得到应用。