Fig. 3: Imperceptible magnetoreceptive e-skin.

a Optical photograph of a transparent flexible magnetoreceptive mesh. b Light transmission and sheet resistance of GMR meshes as a function of filling factor. c GMR ratio and electrical resistance of the GMR mesh as a function of bending radius. d Evolution of the GMR response with application of uni- and biaxial mechanical strain to the GMR mesh. e Visualization of the enhanced permeability of the GMR mesh. Inset: permeability of a standard polymer foil. The vapor flow patterns show the effect of the breathable mesh. f Vapor permeability of the mesh measured by water evaporation and compared with a reference (no barrier) and a standard non-permeable foil.