Figure 1
From: Implantable Biofuel Cells Operating In Vivo—Potential Power Sources for Bioelectronic Devices
(a) Flexible bioelectronic devices allow interfacing with biological tissue. (b) A new type of a biosensor uses flat, flexible electronics (“tattoo” bioelectronics) printed on a thin rubbery sheet, which can stick to human skin for at least 24 h. (Photos “a” and “b” were kindly provided by Joseph Wang, University California San Diego, USA, and John A Rogers, University of Illinois at Urbana-Champaign, USA, respectively.)