Current correlation functions for chemical sensors based on DNA decorated carbon nanotube

  • Poonam P
  • Deo N
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Abstract

The current characteristics of DNA decorated carbon nanotubes for different gas odors are studied. A simple model of charge transfer between the Gas-DNA-base complex and single wall carbon nanotube (SWCN) is proposed to explain the current response for different odors. The autocorrelation and two-point correlation functions are calculated for the current sensitivity curves. These correlation functions together with the current characteristics form finger-prints for detection of the odor and DNA sequence. © 2008 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Carbon nanotube
  • Chemical sensor
  • Correlation functions
  • DNA
  • Sequence detector

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Authors

  • P. Poonam

  • N. Deo

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