Gels and hydrogels articles from across Nature Portfolio

We developed a hydrogel-based iontronic reservoir system as a neuromorphic neuroprosthesis. It achieved more than 90% accuracy on multiple recognition tasks, muscle fatigue sensing via pH-responsive dynamics of its self-healing hydrogels, and rapid and robust functional recovery (0.02 s). The system supported adaptive closed-loop neural stimulation in vivo based on voice commands and muscle states.

The interlayer π-π stacking primarily results in irreversible dispersibility of GO, providing supramolecular view for the regulation of graphene-based materials.

Gastric perforation sealing is challenging due to the acidic environment presented by gastric fluid. Here, authors report an injectable hydrogel bioadhesive for sealing of large gastric perforations.

Hydrogel encapsulation prevents dehydration, but maintaining interfacial stability with hydrophobic shells remains challenging. Here, the authors use a multi-layered marble strategy composed of two hydrophobic particle layers with sandwiched oil layer that stabilizes the interface.

Catherine Crichton and colleagues describe a flexible printed adhesive hydrogel bioelectrode for long-term monitoring of plant electrophysiology. By maintaining stable electrical contact for weeks, these biocompatible electrodes can transform plants into reliable living sensors.

Nociceptive hypersensitivity and prolonged wound healing due to the interaction of peripheral neuropathy and local immune disorders hinder the regenerative repair of diabetic foot ulcer. Here, the authors report a low-intensity focused ultrasound-activated piezoelectric gel bandage with immune homeostasis modulation and neuropathic pain relief functions for comprehensive repair of diabetic wounds.

Thermochromic materials are promising for optical switching devices, though many examples are sensitive to environmental conditions. Here the authors report a phase-separating thermochromic ionogel with a wide temperature stability and enhanced mechanical properties.

We developed a hydrogel-based iontronic reservoir system as a neuromorphic neuroprosthesis. It achieved more than 90% accuracy on multiple recognition tasks, muscle fatigue sensing via pH-responsive dynamics of its self-healing hydrogels, and rapid and robust functional recovery (0.02 s). The system supported adaptive closed-loop neural stimulation in vivo based on voice commands and muscle states.

An article in Advanced Materials reports a fabrication strategy that yields poly(vinyl alcohol) hydrogels with a record high isotropic toughness of 424 MJ m⁻³ alongside exceptional strength and extensibility.

An article in Nature Communications reports a versatile platform for creating slippery surfaces with precise control over their structural topologies.