Technology that continuously monitors glucose levels from fluids other than blood could bring finger-pricking regimes to an end for diabetics. Developed by researchers at the Fraunhofer Institute for Microelectronic Circuits and Systems IMS, the new body-worn biosensor overcomes the limitations of previous devices that were said to be too big, imprecise and consumed too much power. According to a statement, the principle of measurement involves an electrochemical reaction that is activated with an enzyme. Glucose oxidase converts glucose into hydrogen peroxide and other chemicals whose concentration can be measured with a potentiostat. This measurement is used for calculating the glucose level.