Figure 3.

Schematic 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.

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