Inspired by the keratin–elastin composition of human skin, here an artificial skin (alias electronic (e)‐skin) is developed through solvent‐free extrusion based melt mixing of thermoplastic polyurethane (TPU) with the biowaste human hair keratin. Self‐assembled composite film of TPU and keratin (i.e., PUK) shows leg skin equivalent coefficient of friction value of 0.26 ± 0.05, cheek skin equivalent average surface roughness (Ra) of 0.047 ± 0.07 µm, cytoskeletal keratin intermediate filament network like rheological behavior, porous morphology, and skin like positive triboelectric property, when the keratin content is 10 wt%. H‐bonded self‐assembled network and lubricating behavior of cysteine‐rich keratin provide such tribological and rheological behaviors of the PUK. Single electrode triboelectric nanogenerator (STENG) made of PUK containing 10 wt% keratin (i.e., 10% PUK) not only shows clear discrimination between the touch feeling sensations of bare, and glove protected human finger, by producing output voltage of ≈1 and ≈16 V cm⁻², respectively, but it also can discriminate the tactile sensations of different objects viz., aluminum foil, cotton glove, wood, polyimide, and poly(tetrafluoroethylene) by producing different output voltages, resembling that the PUK composite film is well fitted for e‐skin applications.

中文翻译：

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融化角蛋白TPU自组装复合膜为生物启发性电子皮肤

受人皮肤角蛋白-弹性蛋白成分的启发，这里是通过无溶剂挤出将热塑性聚氨酯（TPU）与生物废人发角蛋白熔融混合而开发的人造皮肤（别名电子皮肤）。TPU和角蛋白（即PUK）的自组装复合膜显示腿部皮肤当量摩擦系数值为0.26±0.05，脸颊皮肤当量平均表面粗糙度（Ra）为0.047±0.07 µm，细胞骨架角蛋白中间长丝网络像流变行为一样当角蛋白含量为10 wt％时，具有良好的多孔形态和皮肤正摩擦电性能。H键合的自组装网络和富含半胱氨酸的角蛋白的润滑行为提供了PUK的这种摩擦学和流变行为。分别为^-2，但它也可以通过产生不同的输出电压来区分不同物体的触感，例如铝箔，棉手套，木材，聚酰亚胺和聚四氟乙烯，类似于PUK复合膜非常适合用于电子皮肤应用程序。