Fully Stretchable Reconfigurable Organic Electrochemical Transistors for Wearable Adaptive Logic Bioelectronics

Reconfigurable soft electronic devices that can alter their functionalities under mechanical deformation are essential for adaptive bioelectronics. Here, we report a scalable and ionically reconfigurable platform based on fully stretchable organic electrochemical transistors, enabling stable logic and synaptic operations within a single device architecture. The devices reversibly switch between these modes through electrolyte-mediated ionic reconfiguration. This platform leverages conducting polymer films optimized via a dual-doping strategy integrating a polar solvent and a nonionic surfactant, yielding mechanically stretchable and electrically stable devices that maintain performance under repeated deformation. Functional switching between digital logic and analog synaptic behavior is achieved by tuning the ionic environment of the gate electrolyte, allowing a single device to operate as both logic transistors for gates such as inverters, NAND, and NOR, and synaptic transistors supporting long-term memory. We integrate these reconfigurable devices into an adaptive logic bioelectronic platform capable of interpreting physiological signals and potentially enabling autonomous compression regulation.