Hydrogels for Flexible Electronics and Biomedical Engineering

Dear Colleagues,

Hydrogels merge high-performance flexible electronics with living tissues through tailorable mechanics, ionic conductivity, and tailorable chemistry. Recent formulations integrate conductive nanomaterials, dynamic crosslinks, and stimuli-responsive motifs to yield stretchable sensors, a human–machine interface (HMI), self-powered biofuel cells, injectable neural probes, and closed-loop drug-delivery systems. Epidermal patches record electrophysiology without mechanical mismatch, while hydrogel microelectrodes modulate neural circuits in freely moving animals. Smart variants release growth factors, antibiotics, or chemotherapeutics in response to pH, enzymes, or external fields, accelerating wound healing and tumor regression. Soft robotic grippers and organ-on-chip devices further exploit hydrogels to manipulate or model organs under physiologic loads. This Special Issue welcomes original research and reviews on Hydrogels for Flexible Electronics and Biomedical Engineering, such as sensors, flexible electrodes, HMIs, injectable devices, drug-delivery systems, and soft robotics.

Dr. Sen Lin
Guest Editor

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