A 2.7-μm-thick robust, permeable, and antifreezing hydrogel electrode for long-term ambulatory health monitoring.

ABSTRACT: Adaptable hydrogel bioelectronics that sustain long-term, uninterrupted operation are critical for early disease diagnosis and personalized health care. However, conventional hydrogel electrodes suffer from mechanical fragility, rapid dehydration, freezing, and poor comfort because of thickness-induced interfacial gaps. We report a 2.7-micrometer-thick robust, permeable, and antifreezing hydrogel electrode for high-quality 8-day electrophysiological monitoring under everyday scenarios. The ultrathin electrode is fabricated using gelatin hydrogels with temperature-controlled phase change properties reinforced by nanomesh while incorporating lithium chloride, and a binary solvent achieves antifreezing and antidehydration characteristics. The design minimizes flexural rigidity, resulting in h

SUBMITTER: Wang Y 

PROVIDER: S-EPMC12442859 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature