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  • 73. [Chemical Engineering Journal] Ultra-stretchable wearable strain sensors based on skin-inspired adhesive, tough and conductive hydrogels
  • 来源:高光辉教授个人网站 2019-02-07
  • With increasing interest and demand for wearable sensor devices, fabricating a flexible hydrogel sensor combining

    high toughness and adhesiveness is necessary but remains challenging. In this work, inspired by the

    delamination structure of skin, an ultra-stretchable wearable hydrogel strain sensor with double layers is successfully

    prepared via in-situ polymerization of nucleobase-driven adhesive hydrogels on the surface of conductive

    tough hydrogels crosslinked by hydrophobic association. The hydrogel exhibits ultra-stretchability, high

    mechanical strength, and robust adhesion to various solid materials as well as skin. Furthermore, the hydrogel

    also exhibits high strain sensitivity and stability as a flexible and wearable strain sensor to detect large-range

    human motions and tiny physiological signals. Notably, the adhesive layer not only ensures a robust adhesion

    between the sensors and skin, but also protects skin from current harm when the hydrogels contact with skin

    directly, because of effectively blocking the current from the conductive tough layer. It is envisioned that the

    skin-inspired strategy would provide novel inspiration for the development of hydrogel strain sensors.

  • [来源:中国聚合物网]
  • 了解更多请进入: 高光辉教授个人网站
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