Hysteresis-free and dynamically resilient strain sensor enabled by interfacial coordination

Mechanical hysteresis in soft materials remains a fundamental barrier to achieving accurate, high-speed strain sensing, especially under large and dynamic deformation. Here, we report a hysteresis-free strain sensor enabled by an interfacial coordination strategy, which integrates intrinsically stretchable dual-network universal bonding materials to establish robust adhesion between hyperelastic and hydrogel-dielectric hybrid systems. This architecture simultaneously enhances the elastic rebound stiffness of the composite and suppresses interfacial slippage, leading to a notable reduction in system-level hysteresis. A strain rate–dependent evaluation framework is proposed to systematically quantify dynamic…

• NN
  National Natural Science Foundation of China

  Awards: 52192614, 52192610, 62422120, 52192610, 62422120, 52250398, 52125205, 52250398, 52192614, 52203307, 52003101, 52125205, 52203307
• CP
  China Postdoctoral Science Foundation

  Award: 2024M753182