Skip to main content
. 2021 Jun 22;21(13):4263. doi: 10.3390/s21134263

Figure 7.

Figure 7

Schematic representation of the biosensor for acetylcholine detection. The glassy carbon electrode was modified with Fe2O3 nanoparticles; then the electropolymerization of neutral red in ethaline solution was performed, followed by immobilization of acetylcholinesterase (AChE).