Single-Walled Carbon Nanotube Network based Biosensors using Aptamers and its Characteristics
D.W. Kim, S.M. Seo, Y.J. Park
Seoul National University, KR
carbon nanotubes, biosensors, aptamers
We have successfully demonstrated the single-walled carbon nanotube (SWNT) network based biosensor using aptamers as the protein recognition site. The single-walled carbon nanotube network was used to improve the uniformity in I-V characteristics. Aluminum was first patterned on the substrate with CVD-grown oxide. Then gold electroless plating and pulse annealing method was employed to reduce a contact resistance. Finally, aptamers were attached on the surface of SWNTs and used as a recognition site of human serum albumin. Carbon nanotube shows that it can be a powerful candidate for the next-generation sensor element for the biological/chemical detection.
Nanotech 2008 Conference Program Abstract