Carbon Nanotube-Based Biosensor

✍ Scribed by J.N. Wohlstadter; J.L. Wilbur; G.B. Sigal; H.A. Biebuyck; M.A. Billadeau; L. Dong; A.B. Fischer; S.R. Gudibande; S.H. Jameison; J.H. Kenten; J. Leginus; J.K. Leland; R.J. Massey; S.J. Wohlstadter

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 210 KB
• Volume: 15
• Category: Article
• ISSN: 0935-9648
• DOI: 10.1002/adma.200304259

✦ Synopsis

Carbon nanotubes, compounded into plastic to create bulk electrodes, form the basis of a novel sensor for biological assays. The nanotubes function as both a solid phase and working electrode for generation of electrochemiluminescence, the detection method used in this system. The Figure shows a scanning electron microscopy image of a composite used for an immunoassay. The bright spots in the image are 10 nm diameter gold colloids covalently attached to antibodies. The inset shows a region of a composite with no gold colloids.