Ion-Based Conformable Integrated Neural Implant

Soft nature of tissue requires the implantable device to be conformable, small and minimal invasive. However, most of the implantable devices still requires rigid components and limit the application. Here, we introduce a fully conformable implantable bioelectronics device with probe, internal gated ion transistor(IGT) based circuits based amplification circuit and ionic communication circuit(IC). Electrophysiological signal is amplified with IGT, AM modulated and then transmitted though a pair of IC electrode. We demonstrate the function of the device by recording the LFP from rat hippocampus and transmit the signal through the skin to a external receiver for a week. We created a fully comformable neural implant that establish a safe, long-term pathway to the signal inside biological tissues.