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This Temporary Patch Performs a Blood Sugar Test Without a Needle

 - Jul 1, 2015
References: & livescience
Because pain, blood and finger-pricking are all part of the process of performing a traditional blood sugar test, many diabetics find ways to avoid these invasive procedures that are required several times throughout the day. In light of this, many researchers are seeking non-invasive ways to help patients check their glucose levels.

Working with colleagues, Amay Bandodkar, a nanoengineer at the University of California at San Diego, developed a flexible electronic "tattoo" that is capable of sticking onto the skin. Rather than involving needles, this tattoo-inspired patch would rest on top of the wearer's skin and send a mild electrical current to pick up on blood sugar levels. This smart sensor actually sits atop temporary tattoo paper, along with electrodes made from silver, silver chloride ink and a tiny blood glucose sensor.

During tests, the researchers have found that this device works just as well as a traditional finger-stick monitors.