Fig. 4From: Recent advances in nanomaterial-modified electrical platforms for the detection of dopamine in living cellsa Schematic illustration of the fabrication processes for micro pyramid platform structures. b Selectivity test of dopamine with interfering substances. c The amperometric responses of micro pyramid platform with several concentrations of DA (500 µM–10 nM). With permission from [59], Copyright 2020, Analytical chemistryBack to article page