Fig. 1: Chemical synapses, device fabrication, and morphological characterizations.

a Illustrating the synaptic response between the presynaptic neuron and the postsynaptic neuron and ionic memristor interface with future technology. b Fabricated PDMS mold with a channel length of 15 mm, c and channel width of 1.5 mm. d Optical image of the realized device, e magnified image of electrode spacing ~0.5 mm