Glucose Sensing With Complex Polymer-Electrolyte Systems

A new concept of glucose sensing is presented, where glucose/glucose oxidase mixtures are embedded in between two swift heavy ion irradiated thin polymer foils. Depending on the structure of the polymer foils, the glucose sensor calibration curves follow different trends. If the foils were etched, thus giving rise to many parallel nanopores through the polymer, the sensor's calibration curve follows the trend as given by the conductivity of the glucose/glucose oxidase mixtures. If, however, unetched polymer foils with a high density of latent ion tracks are used, the trend of the calibration curve is reversed. This is tentatively explained by the interaction of the enzymes with the polymer surfaces.