Fig. 1

Overview of wearable devices with integrated nanomaterials. a Schematic of a wearable device mounted on human skin. b–g Optical images of representative wearable devices consisting of functional nanomaterials: b strain sensor, c pressure sensor, d temperature sensor, e memory arrays, f energy storage devices; and g displays. (b–g Reproduced with permission from b Ref. [13], © 2011, Nature Publishing Group; c Ref. [47], © 2014, WILEY–VCH Verlag GmbH & Co. KGaA, Weinheim; d Ref. [7], © 2014, Nature Publishing Group; e Refs. [48] and [41], © 2015, American Chemical Society and © 2014, Nature Publishing Group; f Ref. [45] and [49], © 2014, WILEY–VCH Verlag GmbH & Co. KGaA, Weinheim and © 2010, American Chemical Society; g Refs. [51] and [50], © 2009, Nature Publishing Group and © 2013, Nature Publishing Group). h–l Transmission/scanning electron microscopy (TEM/SEM) images of representative functional nanomaterials integrated into wearable devices: h CNTs, i an SiNM, j GP, k metal nanoparticles, and l quantum dots. (h–l Reproduced with permission from h Ref. [52], © 2011, Nature Publishing Group; i Ref. [7], © 2014, Nature Publishing Group; j Ref. [53], © 2011, Nature Publishing Group; k Ref. [46], © 2015, WILEY–VCH Verlag GmbH & Co. KGaA, Weinheim; l Ref. [44], © 2015, Nature Publishing Group)