Hybrid Single Walled Carbon Nanotube FETs for High Fidelity DNA Detection

Wang X., Ozkan M., Budak G., GÜVENÇ Z. B., Ozkan C. S.

International Workshops on New Trends in Science and Technology (NTST 08)/ Fractional Differentiation and its Applications (FDA08), Ankara, Turkey, 01 November 2008, pp.17-19 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1007/978-90-481-3293-5_2
  • City: Ankara
  • Country: Turkey
  • Page Numbers: pp.17-19
  • Gazi University Affiliated: Yes


A novel application for detecting specific biomolecules using SWNT-ssDNA nanohybrid is described. SWNT-ssDNA hybrid is formed by conjugating amino-ended single strand of DNA (ssDNA) with carboxylic group modified SWNTs through a straightforward EDC coupling reaction. ssDNA functionalized SWNT hybrids could be used as high fidelity sensors for biomolecules. The sensing capability is demonstrated by the change in the electronic properties of SWNT. Employing DNA functionalized SWNT FETs could lead to dramatically increased sensitivity in biochemical sensing and medical diagnostics applications.