Amperometric Urea Sensor - Enzyme Immobilization into Adjustable Membrane and Mathematical Characterization of the Biosensor Topics: Biomaterials; Biomedical Equipment; Biomedical Instrumentation; Biomedical Sensors In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 0BIOSTEC, 144-149, 2015 , Lisbon, Portugal