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. Author manuscript; available in PMC: 2013 Oct 16.
Published in final edited form as: Anal Chem. 2012 Sep 28;84(20):8622–8627. doi: 10.1021/ac301657f

Scheme 1.

Scheme 1

Nonspecific desorption of ssDNA from GO by non-target proteins. Fluorescently labelled ssDNA molecules are adsorbed on GO to form a quenching platform. In the presence of non-target proteins, some of these ssDNAs are released nonspecifically from GO and give false positive signals.