Biomimic Conductive Hydrogel Based on Polyphenol-Modified Cellulose Nanocrystals for Flexible Mechano-sensors

Excellent mechanical properties and force–electric coupling are essential for flexible conductive hydrogels, enabling their applications in soft robotics, wearable sensors, and human–machine interfaces. However, such hydrogels often face a fundamental trade-off between mechanical strength and electrical sensitivity. Inspired by the “soft–hard” architecture strategy in biological mechanical tissues and mussel-inspired multimode interacting mechanisms, we report the fabrication of a composite conductive hydrogel with enhanced mechanical strength, fatigue resistance, universal surface adhesion, and highly sensitive mechano-sensing capabilities by incorporating tannic acid-modified cellulose nanocrystals (CNC@TA)…

• NN
  National Natural Science Foundation of China

  Award: 22472058
• FR
  Fundamental Research Funds for the Central Universities