Log Number: P9
Abstract Submitted to the    NANOTUBE'04 Conference:

Surface-modified single-walled carbon nanotubes for optical biosensors

Wei Zhao, Chulho Song

Department of Chemistry, University of Arkansas, 2801 South University Ave., Little Rock, AR 72204
Contact e-mail: wxzhao@ualr.edu

Single-walled carbon nanotubes (SWNTs) may have important applications in biosensors based on their unique electronic properties. We have found that by surface modification, the near infrared absorption of the first interband transition of semiconducting SWNTs responds to changes of several biological variables including pH and ethanol concentration. The sensing mechanism is uniquely related to the functionalizing groups on the surface of SWNTs and will be discussed in details.

This document at the URL http://materials.ipicyt.edu.mx/~nt04-abstracts/P9.html
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