Table 2.

The comprative study of present zinc ion sensor with the reported zinc ion sensors.

S. No	Concentration Range	Slope sensitivity (mV/decade)	Response time (Seconds)	Reference
1	0.006–100 mM	29.0	12	[24]
2	0.01–100 mM	35.0	5	[32]
3	0.013–100 mM	30.0	10	[53]
4	0.5–100 mM	33.0	20–25	[54]
5	0.005–100 mM	29.7	8	[55]
6	0.001–100 mM	36.0	Less than 10	this work