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BP: Fachverband Biologische Physik
BP 8: Biomaterials, Biopolymers and Bioinspired Functional Materials I (joint session BP/CPP)
BP 8.1: Vortrag
Montag, 17. März 2025, 15:00–15:15, H46
Ferroelectric Microelectrodes for Hybrid Neuroelectronic Systems — •Maximilian T. Becker1,2, Roland Thewes3, and Günther Zeck4 — 1Department of Embedded Systems, Hahn-Schickard, Freiburg, Germany — 2Faculty of Engineering, University of Freiburg, Freiburg, Germany — 3Chair of Sensor and Actuator Systems, TU Berlin, Berlin, Germany — 4Institute of Biomedical Electronics, TU Wien, Vienna, Austria
Direct electrical interfacing of semiconductor chips with individual neurons and neural networks forms the basis for a systematic assembly and investigation of hybrid neuroelectronic systems with future applications in information technology and biomedicine. The neuroelectronic interface is realized via microelectrodes to bidirectionally transmit electrical signals between neurons and the semiconductor chip. Here, we introduce the concept of ferroelectric microelectrodes and discuss the physics of ferroelectric interfaces in neuroelectronic applications. As an example, we present neural recordings from retinal ganglion cells (RGCs) interfaced with a ferroelectric complementary metal-oxide-semiconductor microelectrode array (CMOS-MEA) and discuss the results in detail.
Keywords: Ferroelectric Microelectrodes; Neural Interfacing; Retina; CMOS Technology