Highly Flexible and Broad-Range Mechanically Tunable All-Wood Hydrogels with Nanoscale Channels via the Hofmeister Effect for Human Motion Monitoring

Highlights An all-wood hydrogel was synthesized via a simply Hofmeister effect without the use of any chemical cross-linking agent. The all-wood hydrogel shows a high tensile strength of 36.5 MPa, a strain up to ~ 438%, and good conductivity, and can accurately distinguish diverse large or subtle human movements. The all-wood hydrogel has good recyclable, biodegradable, and adjustable mechanical properties.