MIT News  December 20, 2024 Monitoring electrical potentials in liquid is critical in biosensing but limitations in spatial resolution and recording density remain. A team of researchers in the US (MIT, industry) introduced organic electro-scattering antennas (OCEANs) for wireless, light-based probing of electrical signals with micrometer spatial resolution, potentially from thousands of sites. The technology relied on poly(3,4-ethylenedioxythiophene):polystyrene sulfonate light scattering properties to its doping level. Signal-to-noise ratios up to 48 were achieved in response to 100-mV stimuli. OCEANs demonstrated millisecond time constants and long-term stability, enabled continuous recordings over 10 hours. According to the researchers their work potentially accelerates […]