J Mater Sci Technol ›› 2008, Vol. 24 ›› Issue (04): 578-588.

• Research Articles • Previous Articles     Next Articles

Nanotube-Based Chemical and Biomolecular Sensors

J.Koh, B.Kim, S.Hong, H.Choi, H.Im   

  1. Department of Physics and Astronomy, Seoul National University, Shillim-Dong, Kwanak-Gu Seoul, 151-747, Korea...
  • Received:2007-12-11 Revised:1900-01-01 Online:2008-07-28 Published:2009-10-10
  • Contact: S.Hong

Abstract: We present a brief review about recent results regarding carbon nanotube (CNT)-based chemical and biomole-cular sensors. For the fabrication of CNT-based sensors, devices containing CNT channels between two metal electrodes are first fabricated usually via chemical vapor deposition (CVD) or “surface programmed assembly” method. Then, the CNT surfaces are often functionalized to enhance the selectivity of the sensors. Using this process, highly-sensitive CNT-based sensors can be fabricated for the selective detection of various chemical and biological molecules such as hydrogen, ammonia, carbon monoxide, chlorine gas, DNA, glucose, alcohol, and proteins.

Key words: Chemical vapour deposition, Carbon nanotubes, Sensors, Biological molecules...