期刊
ACS MATERIALS LETTERS
卷 5, 期 12, 页码 3340-3346出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsmaterialslett.3c00938
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This study demonstrates the use of hydrophobic eutectogels as water-resistant electrodes, which possess adjustable mechanical properties and excellent stability for recording electromyography (EMG) signals in both underwater and air environments.
Underwater recording remains a critical challenge in bioelectronics because traditional flexible electrodes can not fulfill essential requirements such as stability and steady conductivity in aquatic environments. Herein, we show the use of elastic gels made of hydrophobic natural eutectic solvents as water-resistant electrodes. These eutectogels are designed with tailorable mechanical properties via one-step photopolymerization of acrylic monomers in different eutectic mixtures composed of fatty acids and menthol. The low viscosity of the eutectics turns the formulations into suitable inks for 3D printing, allowing fast manufacturing of complex objects. Furthermore, the hydrophobic nature of the building blocks endows the eutectogels with excellent stability and low water uptake. The obtained flexible eutectogel electrodes can record real-time electromyography (EMG) signals with low interference in the air and underwater.
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