Magnetostrictive and Electroconductive Stress‐Sensitive Functional Spider Silk

Electronics and soft robotics demand the development of a new generation hybrid materials featuring novel properties. Among these, remarkable mechanical properties are required to sustain stresses, electrical magnetic essential design devices’ interface. In this study, material is presented, consisting spider silk thread, providing robustness, coated with layer magnetostrictive FeCo alloy, which ensures both conductivity stress-sensitive The durability homogeneity composite validated, as well its ability respond stimuli. Despite coating, nature performances preserved. study reveals that behavior film strongly affected by thread–FeCo interaction, especially under stresses. Indeed, when subjected tensile strain, signal changes accordingly, indicating layer–silk interaction maintained can be exploited reveal tensional state sample even severe cycles. Therefore, presented flexible fiber suitable for magneto-electronics applications, e.g., actuators strain/stress sensors.