(a) Schematic demonstrating the use of yarns for developing electronic fabrics. Briefly, graphene doped polyurethane fibers are deposited on the surface of Ni-coated cotton yarns. These core-shell yarns are then wound around an elastic thread. In the next step, the composite yarns are woven to obtain a fabric. (b) SEM image of the elastic composite yarn. (c) optical microscopy image of the elastic composite yarn. (d) SEM image of the stretched elastic composite yarn. (e) optical microscopy image of the woven electronic fabric. Reprinted from Journal of Materials Chemistry C, Vol. 6, Xiaolu You, Jianxin He, Nan Nan, Xianqiang Sun, Kun Qi, Yuman Zhou, Weili Shao, Fan Liu, Shozhong Cui, Stretchable capacitive fabric electronic skin woven by electrospun nanofiber coated yarns for detecting tactile and multimodal mechanical stimuli, 12981–12991, Copyright (2018), with permission from The Royal Society of Chemistry.