Fig. 5From: A Novel Conductometric Urea Biosensor with Improved Analytical Characteristic Based on Recombinant Urease Adsorbed on Nanoparticle of SilicaliteDependence of values of biosensor responses to urea concentration on various protein concentrations in solution (1 0 % BSA, 2 0.1 % BSA, 3 0.25 % BSA, 4 0.5 % BSA, 5 1 % BSA). Measurements were carried out in 10 mM phosphate buffer, pH 7.35Back to article page