Electron and Cation Transporting Polymer Films as Multifunctional Bioelectronic Interfaces

The ability to sense and react to environmental stimuli is a crucial material property to harness in the development of next-generation sensors, actuators, and robotics. In this presentation, I will introduce n-type conjugated polymers as multifunctional bioelectronic interfaces. I will demonstrate how these polymers can be tailored to establish favorable interactions with catalytic enzymes as well as lipid bilayers to build biosensors. While highlighting the unique characteristics of these devices, I will delve into the potential pathways through which the polymer film generates charges and address stability concerns. Subsequently, I will explore how these polymer films respond to visible and near-infrared light by generating voltage drops at the aqueous electrolyte interface. This system is then seamlessly integrated into an adaptable circuit with outputs controlled by various stimuli, effectively mimicking the function of a light-sensitive neuron. Finally, I will unveil a novel application of the n-type films, demonstrating their capacity to enhance stem cell maturation.