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Specific detection of dopamine (DA) is achieved with organic neuromorphic devices with no specific recognition function in an electrolyte solution. The response to voltage pulses consists of amplitude‐depressed current spiking mimicking the short‐term plasticity (STP) of synapses. An equivalent circuit hints that the STP timescale of the device arises from the capacitance and resistance of the poly(3,4‐ethylenedioxythiophene):polystyrenesulfonate...
In article number 2002141, Fabio Biscarini and co‐workers demonstrate that the current response of a device made of two PEDOT:PSS electrodes is selective for dopamine even without specific recognition moieties. The dynamic measurement of the short‐term plasticity transient current allows to discriminate dopamine from other chemical species that are produced from dopamine metabolic and catabolic pathways...
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