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Soft, Conductive, and Anti-Freezing Conducting Polymer Organohydrogels

  • par garon@biomomentum.com

Xin Zhou; Pierre Kateb; Floriane Miquet‐Westphal; Gregory A. Lodygensky; Fabio Cicoira
Adv. Sensor Res. 2300072 published: 23 August 2023

https://doi.org/10.1002/adsr.202300072

13 citations · 9 en 2025–2026

Les titres, résumés et légendes des publications sont présentés en anglais.

Abstract

Soft and conductive materials are highly desirable for wearable electronics. In particular, anti-freezing, long-water retention, and highly conductive gels with Young’s modulus matching that of biological tissues, show promise in bioelectronics. Herein, soft organohydrogels obtained by mixing poly (3,4-ethylenedioxythiophene) doped with polystyrene sulfonate (PEDOT:PSS), ethylene glycol (EG), and tannic acid (TA) are reported. The PEDOT/EG/TA

organohydrogels exhibit a low compressive Young’s modulus of ≈20 kPa, a conductivity of ≈6 S cm−1, as well as anti-freezing and water retention

properties. Epidermal patch electrodes prepared using the PEDOT/EG/TA gel exhibit low skin–electrode impedance at low frequency (1–100 Hz) and

high-quality electrocardiography (ECG) and electromyography signal recordings. Moreover, these gels demonstrate long-term stability with high

ECG recording quality after being placed under ambient conditions for seven days.

Utilisation des équipements

Le Mach-1 Mechanical Tester a mesuré les réponses contrainte–déformation en compression d’organohydrogels cylindriques à base de PEDOT:PSS, d’éthylène glycol et d’acide tannique afin de déterminer leur module de Young en compression. La caractérisation rhéologique, comprenant la viscosité et les balayages en fréquence, a été réalisée séparément avec un rhéomètre Anton Paar MCR 502 MultiDrive, et non avec le Mach-1.

Matériaux (1)

Configurations de test (1)

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