A Facile and Novel Design of Multifunctional Electronic Skin Based on Polydimethylsiloxane with Micropillars for Signal Monitoring

Electronic skins (e-skins) with monitoring capabilities have attracted extensive attentions and been widely employed in wearable devices for medical diagnosis. Particularly, e-skin based on strain sensor has been reported extensively due to its simple structure and efficient performance on collecting human physiological information. Flexible sensors with high sensitivity, simplified fabrication, and low-cost are highly desired for human signal monitoring. This work provides a novel strain-sensing e-skin with micro-structures, and it was simply made of modified polydimethylsiloxane and silver nanowires. This e-skin had great sensitivity to the strain changes, and its mechanical property and sensitivity could be regulated by controlling the micro-structures. Furthermore, the e-skin demonstrated significant capacity for monitoring human body movements, temperature changes, and spatial resolution, allowing its great potential in personalized medicine.