Additional file 2: Figure S2.

Schematic setup for the EIS measurements. Experimental conditions: working electrode (W.E), DWCNT-dye membrane; reference electrode (R.E), Ag/AgCl; counter electrode (R.E), Pt; AC magnitude, 10 mV; DC magnitude, −0.6, −0.3, 0, 0.3, 0.6 V; frequency, 100 kHz to 0.2 Hz. Platinum wire, Ag/AgCl, and DWCNT-dye membrane were used as counter, reference, and working electrodes.

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Zhan et al. Nanoscale Research Letters 2013 8:279   doi:10.1186/1556-276X-8-279