Abstract

In this paper we describe a single wall carbon nanotube (SWNT) based biological sensor for the detection of bio molecules like Streptavidin and IgG. SWNT have been employed for two types of sensing mechanisms. Firstly, the changes in the electrical conductance of the carbon nanotube matrix on non covalent binding of the biomolecules to the side walls of the carbon nanotube and secondly, quantification of mass uptake of the matrix on biomolecule incubation are presented. Both sensing mechanisms exhibited consistent and highly sensitive responses. Biomolecular immobilization on the carbon nanotube surface was monitored by Atomic Force Microscopy.

Original languageEnglish
Pages1048-1051
Number of pages4
StatePublished - 2004
EventIEEE Sensors 2004 - Vienna, Austria
Duration: Oct 24 2004Oct 27 2004

Conference

ConferenceIEEE Sensors 2004
Country/TerritoryAustria
CityVienna
Period10/24/0410/27/04

Keywords

  • Atomic Force Microscopy
  • Biomolecule
  • Single walled Carbon nanotubes

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