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. 2015 Nov 20;5(4):1995–2006. doi: 10.3390/nano5041995

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© 2015 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/4.0/).

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Chronoamperometric current response under flow injection analysis (FIA) conditions to caffeic acid in the range 0.5 μM–1.5 mM, using MWCNTs-PVA-AuNPs-Trametes versicolor (TvL) screen-printed electrode. Experimental conditions: 0.1 M B-R buffer pH 5; flow rate: 0.716 mL/min; loop 250 μL, E = −0.15 V (vs. Ag/AgCl).