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Proceedings Article

Fabrication and characterization of carbon nanotube field-effect transistor biosensors

[+] Author Affiliations
Matthew R. Leyden, Canan Schuman, Tal Sharf, Josh Kevek, Vincent T. Remcho, Ethan D. Minot

Oregon State Univ. (USA)

Proc. SPIE 7779, Organic Semiconductors in Sensors and Bioelectronics III, 77790H (August 17, 2010); doi:10.1117/12.861329
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From Conference Volume 7779

  • Organic Semiconductors in Sensors and Bioelectronics III
  • Ruth Shinar; Ioannis Kymissis
  • San Diego, California | August 01, 2010

abstract

We report the fabrication of carbon nanotube field-effect transistors for biosensing applications and the development of protocols for reliable protein and DNA sensing. The sensing method we employ is 'label free', relying only on the intrinsic charge of the biological molecule of interest. We discuss fabrication issues that we have solved, for example the preparation of clean surfaces, and the sensing protocol issues that we have encountered. Polylysine and ss-dna, highly charged biological molecules, are used as model systems to illustrate the performance of our biosensors.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Matthew R. Leyden ; Canan Schuman ; Tal Sharf ; Josh Kevek ; Vincent T. Remcho, et al.
"Fabrication and characterization of carbon nanotube field-effect transistor biosensors", Proc. SPIE 7779, Organic Semiconductors in Sensors and Bioelectronics III, 77790H (August 17, 2010); doi:10.1117/12.861329; http://dx.doi.org/10.1117/12.861329


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