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Shun Mao, Ganhua Lu, Kehan Yu, Zheng Bo and Junhong Chen Specific Protein Detection Using Thermally Reduced Graphene Oxide Sheet Decorated with Gold Nanoparticle-Antibody Conjugates Advanced Materials 22

Version of Record online: 21 JUL 2010 | DOI: 10.1002/adma.201000520

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A highly sensitive and selectivefield-effect transistor biosensor using thermally reduced graphene oxide (TRGO) sheet decorated with gold nanoparticle-antibody conjugates is demonstrated. Probe antibody (anti-Immunoglobulin G) is labeled on the surface of the TRGO sheet through gold nanoparticles and electrical detection of the protein binding (Immunoglobulin G and anti-Immunoglobulin G) is accomplished by FET and dc measurements.

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