Table 2.

The sensing properties of the different urea biosensors at different flow rates by integrating the microfluidic measurement system.

Flow Rate (ml/h)	MBs-Urease/GO/TiO2		MBs-Urease/GO/NiO
	Average Sensitivity (mV/(mg/dl))	Linearity	Average Sensitivity (mV/(mg/dl))	Linearity
20	3.022	0.976	4.103	0.996
30	2.964	0.979	3.060	0.982
40	4.256	0.995	5.582	0.959
50	3.394	0.934	4.594	0.973
60	2.754	0.943	3.956	0.909