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. 2014 Sep 22;7(9):6843–6852. doi: 10.3390/ma7096843

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© 2014 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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(a) Transfer characteristics (I_DS–V_GS) of the OFET upon titration with biotinylated anti-IgG antibody in a D-PBS solution with 0.1 wt% BSA. [Anti-IgG antibody] = 0–50 μg/mL. The inset shows the gate-source current (I_GS–V_GS); (b) Changes in threshold voltage (V_TH) for the OFET by biotinylated anti-IgG antibody at various concentrations in a D-PBS solution with 0.1 wt% BSA.