RT Journal Article SR Electronic T1 Needles no more JF Science Translational Medicine FD American Association for the Advancement of Science SP eaat4481 DO 10.1126/scitranslmed.aat4481 VO 10 IS 438 A1 Shen, Keyue YR 2018 UL http://stm.sciencemag.org/content/10/438/eaat4481.abstract AB A needle-free graphene-based biosensor monitors blood glucose levels in real time.