Tuesday, October 30, 2012
More than 346 million people worldwide suffer from diabetes. The World Health Organization predicts that by 2030, diabetes will be the seventh leading cause of death. For most diabetes patients, pricking a finger with a needle in order to check blood glucose levels is part of everyday life. As a prick-free alternative, researchers at the Fraunhofer Institute for Microelectronic Circuits and Systems IMS in Duisburg, Germany, have developed a tiny chip for non-invasive glucose level measurement with built-in digital analysis for NovioSense BV.
The linchpin diagnostic enzyme sensor can be attached under the eye and is able to analyze glucose levels from tear fluids.
The linchpin biosensor, at only 0.7 x 10.0 millimeters, includes a nanopotentiostat, an entire diagnostic system, an analog digital converter, and a wireless transponder system. While previous electrochemical sensor systems are bigger and require more energy, the Fraunhofer linchpin enzyme sensor system requires less than 100 microamperes at five volts to operate. The linchpin biosystem, which is able to send and receive data packages, is also supplied with power via radio frequency. This allows the patient continuous glucose level monitoring for weeks or even months, without having to place a drop of blood onto a test strip. For more information, click here.