Publication date: 15th December 2025
Scalable, high-throughput platforms capable of non-invasively recording action potentials (APs) from excitable cells are increasingly essential for advancing disease modelling and accelerating drug discovery. Yet, despite decades of progress, AP measurements in vitro still rely predominantly on patch clamp, a gold-standard technique that remains invasive, low-throughput, and technically demanding. Non-invasive alternatives, such as planar MEAs, cannot capture true APs without membrane poration, thereby limiting their ability to resolve subtle disease phenotypes or pharmacological responses. In this talk, I will present our development of a next-generation electrophysiology platform based on Electrolyte-Gated Organic Transistors (EGOTs) [1-3]. This technology achieves patch-clamp-like signal fidelity from human stem cell-derived cardiomyocytes without perturbing the membrane, enabling the detection of drug-induced proarrhythmic events such as early and delayed afterdepolarizations. I will also highlight our ongoing efforts to scale up the technology from single devices to multiwell arrays for high-throughput screening. Additionally, I will discuss our current work on extending its application to other excitable cells, which opens up new opportunities for scalable, non-invasive electrophysiology.
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