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Hua Zhang, Ying Sun, Shang Gao, Jia Zhang, Hanqi Zhang and Daqian Song A Novel Graphene Oxide-Based Surface Plasmon Resonance Biosensor for Immunoassay Small 9

Article first published online: 22 FEB 2013 | DOI: 10.1002/smll.201202958

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Graphene oxide (GO) is used as a support for binding with proteins. A GO-based wavelength modulation surface plasmon resonance biosensor shows high sensitivity and selectivity for detection of human immunoglobulin G (IgG). When IgG is coupled with gold nanorods (AuNRs), the size increase results in a refractive index change.

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