Single-Walled Carbon Nanotube Network based Biosensors using Aptamers and its Characteristics

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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.

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Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2008: Materials, Fabrication, Particles, and Characterization – Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, Volume 1
Published: June 1, 2008
Pages: 94 - 96
Industry sector: Advanced Materials & Manufacturing
Topic: Carbon Nano Structures & Devices
ISBN: 978-1-4200-8503-7