Vertical Organic Electrochemical Transistors and Electronics for Low Amplitude Micro‐Organ Signals

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Abstract: Electrical signals are fundamental to key biological events such as brain activity, heartbeat, or vital hormone secretion. Their capture and analysis provide insight into cell or organ physiology and a number of bioelectronic medical devices aim to improve signal acquisition. Organic electrochemical transistors (OECT) have proven their capacity to capture neuronal and cardiac signals with high fidelity and amplification. Vertical PEDOT:PSS‐based OECTs (vOECTs) further enhance signal amplification and device density but have not been characterized in biological applications. An electronic board with individually tuneable transistor biases overcomes fabrication induced heterogeneity in device metrics and allows quantitative biological experiments. Careful exploration of vOECT electric parameters defines voltage biases compatible with reliable transistor function in biological experiments and provides useful maximal transconductance values without influencing cellular signal generation or propagation. This permits successful application in monitoring micro‐organs of prime importance in diabetes, the endocrine pancreatic islets, which are known for their far smaller signal amplitudes as compared to neurons or heart cells. Moreover, vOECTs capture their single‐cell action potentials and multicellular slow potentials reflecting micro‐organ organizations as well as their modulation by the physiological stimulator glucose. This opens the possibility to use OECTs in new biomedical fields well beyond their classical applications.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Vertical Organic Electrochemical Transistors and Electronics for Low Amplitude Micro‐Organ Signals ; day:22 ; month:01 ; year:2022 ; extent:13
Advanced science ; (22.01.2022) (gesamt 13)

Creator: Abarkan, Myriam
Pirog, Antoine
Mafilaza, Donnie
Pathak, Gaurav
N'Kaoua, Gilles
Puginier, Emilie
O'Connor, Rodney
Raoux, Matthieu
Donahue, Mary
Renaud, Sylvie
Lang, Jochen

DOI: 10.1002/advs.202105211

URN: urn:nbn:de:101:1-2022012214180311350195

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 15.08.2025, 7:36 AM CEST

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Associated

Abarkan, Myriam
Pirog, Antoine
Mafilaza, Donnie
Pathak, Gaurav
N'Kaoua, Gilles
Puginier, Emilie
O'Connor, Rodney
Raoux, Matthieu
Donahue, Mary
Renaud, Sylvie
Lang, Jochen

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Vertical Organic Electrochemical Transistors and Electronics for Low Amplitude Micro‐Organ Signals

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Other Objects (12)

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