Fig. 4: Conformal textile skin patches.
From: Digitally-embroidered liquid metal electronic textiles for wearable wireless systems
a Images of skin patches fabricated using digital embroidery of liquid metal fibers attached to the neck, waist, and knee. The skin patches are used as wearable transmitters connected with a signal generator for wireless powering of the underneath wearable and implantable devices during daily activities. b Simulated magnetic field ∣Habs∣ on a flat and curved (5-cm radius) body phantom. The cutting plane is set to the center of the skin patch (white dot). c Field profiles along the cutting plane at varying depth h. d Received voltage U of wearable and implantable device, wirelessly powered by the skin patch, during physical activities with speed v increasing from 0, 2.8, 5, 7.2, to 9.2 km h−1, indicated by the shadows. The input power of the skin patch is 20 dBm. e Comparison of U and its relative standard deviation (STDEV) during different activities. Error bars show mean ± s.d. Source data are provided as a Source Data file.
