Graphene electronic tattoo sensors have been realized. congrats to postdoc scholar Shideh Ameri who led the work in collaboration with Nanshu Lu’s group.
Also widely reported in the news, and is featured on BBC
http://www.bbc.co.uk/news/av/technology-41669803/how-a-graphene-tattoo-could-monitor-your-health
http://spectrum.ieee.org/nanoclast/semiconductors/nanotechnology/graphene-temporary-tattoo
http://dailytexanonline.com/2017/10/19/ut-researchers-develop-e-tattoo-health-devices
https://phys.org/news/2017-08-graphene-electronic-tattoos-skin.html
https://www.digitaltrends.com/cool-tech/graphene-health-tracking-tattoo/
http://www.nanowerk.com/spotlight/spotid=47610.php
http://www.printedelectronicsworld.com/articles/11492/graphene-electronic-tattoo-sensors