Figure 3From: Single-step electrochemical functionalization of double-walled carbon nanotube (DWCNT) membranes and the demonstration of ionic rectificationSchematic mechanism and illustration. (A) Schematic mechanism of electrochemical oxidation of primary amine on conductive surface. (B) Schematic illustration of one-step functionalization of Direct Blue 71 dye via electrooxidation of amine.Back to article page