Posted: December 3, 2012 by Wildcat in Uncategorized
Tags: , , ,

It looks like a smiley face tattoo, but a new easy-to-apply sensor can detect medical problems and help athletes fine-tune training routines. “We wanted a design that could conceal the electrodes,” says Vinci Hung, a PhD candidate in physical and environmental sciences at the University of Toronto, who helped create the new sensor. “We also wanted to showcase the variety of designs that can be accomplished with this fabrication technique.” The tattoo, which is an ion-selective electrode (ISE), is made using standard screen printing technique and commercially available transfer tattoo paper—the same kind of paper that usually carries tattoos of Spiderman or Disney princesses. n the case of the sensor, the “eyes” function as the working and reference electrodes, and the “ears” are contacts for a measurement device to connect to. Hung contributed to the work while in the lab of Joseph Wang, a professor at the University of California, San Diego. The sensor she helped make can detect changes in the skin’s pH levels in response to metabolic stress from exertion.

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