Controlling PEDOT:PSS electropolymerization for label-free optical recording of bioelectric potentials

Journal of Materials Chemistry B 2026 Open access

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Authors: Xuchen Ren, Jitong Ren, Yu Shi, Alexandra Kuhlman-Schneider, Koney Eungkon Kim, Zixin Zhang, Yuecheng Peter Zhou
DOI: 10.1039/d6tb00816j
Cited by: 1
References: 52

Abstract

and a 561 nm laser, we achieved a voltage detection sensitivity of 2.8 µV at 10 kHz recording bandwidth under shot-noise-limited conditions. We then performed prolonged label-free optical recording of isolated embryonic chicken hearts. We recorded both the cardiac field potentials and mechanical contractions, which increased from embryonic day 10 to day 15, while the latency time between them remained unchanged. These results established electropolymerization as a strategy to tune the electrochromic response of PEDOT:PSS thin films across different wavelengths, thereby optimizing their voltage detection sensitivity.

Fields of Study & Subjects

Conducting polymers and applications Advanced Sensor and Energy Harvesting Materials Polydiacetylene-based materials and applications

Publication details

Journal / source
Journal of Materials Chemistry B
Publisher
Royal Society of Chemistry (RSC)
Volume
14
Issue
23
Pages
7150–7163
Publication date
1 January 2026
Language
EN