Canavalia Urease 4 biosensor 4 urease 4 Adsorption isotherms 2 Article 2 Atmospheric humidity 2 Bio-sensor platforms 2 Biosensing Techniques 2 Biosensing applications 2 Biosensors 2 Biotechnology 2 Canavalia ensiformis 2 Chemical sensors 2 Copper 2 Differential scanning calorimetry 2 Enzyme activity 2 Enzymes 2 Enzymes, Immobilized 2 Equipment Design 2 Field effect transistors 2 Field-effect transistors 2 Glycerol 2 Graphene 2 Graphene transistors 2 Graphite 2 Heavy metals 2 Humans 2 Hydrolysis of ureas 2 Immobilization 2