Towards selective detection of chiral molecules using SWNT sensors

被引：17

作者：

Vardanega, D. ^{[1
]}

Picaud, F. ^{[1
]}

Girardet, C. ^{[1
]}

机构：

[1] Univ Franche Comte, Fac Sci, Phys Mol Lab, UMR 6624, F-25030 Besancon, France

来源：

SURFACE SCIENCE | 2007年 / 601卷 / 18期

关键词：

physisorption; chiral molecules; nanosensor;

D O I：

10.1016/j.susc.2007.04.020

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：

Calculations are performed to demonstrate that chiral molecules should in principle be selectively detected on chiral semi-conducting single-walled carbon nanotubes. These nanotubes, when they are used in a resonator configuration, could discriminate the two enantiomers (left and right handed species) of an amino acid through the adsorption energy difference A Wand through the resonance frequency shift Delta Delta f directly connected to the permittivity change of the tubes due to the molecule adsorption. Application to the calculation of A W and Delta Delta f for the adsorption of L and D-alanine on various chiral nanotubes defines the parameters which are crucial for an optimized detection. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：3818 / 3822

页数：5