Data from: Organic electro-scattering antenna: Wireless and multisite probing of electrical potentials with high spatial resolution

Monitoring electrical potentials with high recording site density and
micrometer spatial resolution in liquid is critical in biosensing. Organic
electronic materials have driven remarkable advances in the field due to
their unique material properties, yet limitations in spatial resolution
and recording density remain. Here, we introduce organic
electro-scattering antennas (OCEANs) for wireless, light-based probing of
electrical signals with micrometer spatial resolution, potentially from
thousands of sites. The technology relies on the unique dependence of
poly(3,4-ethylenedioxythiophene):polystyrene sulfonate light scattering
properties to its doping level. Electro-optic characteristics of
individual antennas varying in diameters and operating voltages were
systematically characterized in saline solution. Signal-to-noise ratios up
to 48 were achieved in response to 100 mV stimuli, with 2.5 mV detection
limits and 5 μm spatial resolution. OCEANs demonstrated milliseconds time
constants and exceptional long-term stability, enabling continuous
recordings over 10 hours. By offering exceptional 5μm spatial resolution
and 4.106 cm-2 recording density, OCEANs unlock new readout capabilities,
potentially accelerating fundamental and clinical research.