Dresden 2026 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HL: Fachverband Halbleiterphysik

HL 2: Focus Session: Biocompatible Organic Semiconductors for Artificial Intelligence

HL 2.1: Hauptvortrag

Montag, 9. März 2026, 09:30–10:00, POT/0051

Intrinsically stretchable polymers and devices for biosensing applications — •Ulrike Kraft — Organic Bioelectronics Research Group, MPI for Polymer Research, Mainz, Germany

Organic electrochemical transistors (OECTs) currently attract vast interest for biosensing applications due to their, intrinsic signal amplification and low operating voltages, enabling sensing in close contact to the human body and in aqueous environments with liquid analytes. Furthermore, the low elastic modulus of polymers can be tailored to match that of soft biological tissues, drawing increasing interest towards soft and stretchable health-monitoring devices.

The first part of the talk will focus on our work on biosensors based on planar OECTs that are functionalized with antibodies for e.g. the detection of the SARS-CoV-2 spike protein or with aptamers for the detection of e.g. cytokines, which are proteins crucial for immune regulation and inflammatory responses.

In the second part, I will summarize our efforts on stretchable electronics including a fast and reliable transfer-printing method for the deposition of conductive polymer films (e.g. PEDOT:PSS) onto stretchable, biodegradable substrates Taking advantage of this method and infusing the substrates with small-molecule plasticizers that also diffuse into the conductive films, improves the electrical performance as well as the mechanical properties. Lastly, this platform is employed for studying the effect of strain on the figures-of-merit of intrinsically stretchable OECTs.

Keywords: stretchable electronics; organic electrochemical transistors; biosensors