Extended Data Fig. 1: Effect of dopamine concentration in cell culture media on neuromorphic device transfer characteristics.
From: A biohybrid synapse with neurotransmitter-mediated plasticity

a, Transfer curves and b, corresponding transconductance curves as a function of dopamine concentration in DMEM solution flowed through the microfluidic channel showing an increase in peak transconductance at roughly +0.2 V corresponding to oxidation of dopamine.