Power-2-Sense Glucose

Looking forward to the reduction of the waste produced by the detection and the follow-up of such a prevalent disease as diabetes, this research focused on the development of a paper-based biosensor for glucose detection that is simultaneously more sustainable, self-powered and cheaper. To achieve that, the enzymes bilirubin oxidase (BOx) and glucose dehydrogenase (GDH) were immobilised in multi-walled carbon nanotubes (MWCNT), which had been deposited on a paper base with conducting gold-based strips, thus serving as (bio)cathode and (bio)anode, respectively. After the electrodes were connected, the biofuel cell was able to independently produce power, as intended, at the sub-microwatt level and in an amount directly proportional to the concentration of glucose.