Environmentally tolerant multifunctional eutectogel for highly sensitive wearable sensors

Flexible hydrogel sensors have found extensive applications. However, the insufficient sensing sensitivity and the propensity to freeze at low temperatures restrict their use, particularly in frigid conditions. Herein, a multifunctional eutectogel with high transparency, anti-freezing, anti-swelling, adhesive, and self-healing properties is prepared by a one-step photopolymerization of acrylic acid and lauryl methacrylate in a binary solvent comprising water and deep eutectic solvent (DES). The results from the molecular dynamics simulations and density functional theory indicate that the hydrogen bonds between DES and water mixtures possess better stability than those between water molecules. On the other…

• NN
  National Natural Science Foundation of China

  Awards: U22A20161, 52033007, 52103186
• SP
  Sichuan Province Science and Technology Support Program

  Award: 2024NSFTD0002
• FR
  Fundamental Research Funds for the Central Universities

  Award: 2682022JX001