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Rsc Advances 2014, 4(46), 23952-23956

CVD graphene based immunosensor

Graphene synthesis by chemical vapour deposition (CVD) method has been receiving much attention from researchers. This is due to the fact that high quality graphene can be obtained at relatively low production costs. While there has been much advancement in CVD synthesis of graphene, little study has been done on the biosensing applications of CVD graphene. Herein, we aim to draw attention to employing CVD grown graphene as a potential platform for immunosensing of IgG. Using electrochemical impedance spectroscopy (EIS), we obtained a sensitive detection of rabbit IgG in the range of 0.1-100 mu g ml(-1) with untreated CVD graphene as the electrode interface for direct immobilization of the recognition antibodies. From our report, it can be concluded that CVD grown graphene exhibits great potential to be utilized as a platform for immunosensing applications.

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