Graphene electronic tattoo (GET) is a group of ultrathin stretchable dry sensors for measuring electrocardiogram (ECG), electromyogram (EMG), electroencephalogram (EEG), skin temperature, and skin hydration.

Because of low thickness (463 ± 30 nm) and ultra low areal mass density of GET, it forms conformal  contact to the skin and stays intact without any adhesive or tape just via van der Waals force. A bare GET is able to stay attached to skin for several hours without fracture or delamination. With liquid bandage coverage, a GET may stay functional on the skin for up to several days. The optical transparency of  GET is ∼85%, and it is more stretchable (40%) than human skin (10 to 30%).  The GET can be directly laminated on human skin just like a temporary tattoo and can fully conform to the microscopic morphology of the skin.



61. Liu Wang, Shutao QiaoShideh Kabiri Ameri, Hyoyoung Jeong, Nanshu Lu*A Thin Elastic Membrane Conformed to a Soft and Rough Substrate subjected to Stretching/CompressionJournal of Applied Mechanics 84, 111003  (2017).
60. Christopher J. Brennan, Rudresh Ghosh, Kalhan Koul, Sanjay K. Banerjee, Nanshu Lu*, and Edward T. Yu*, Out-of-Plane Electromechanical Response of Monolayer Molybdenum Disulfide Measured by Piezoresponse Force MicroscopyNano Letters  (2017).
59. Andrei Irimia*, Susan Wei, Nanshu Lu, Constance M. Moore, David N. Kennedy,