A Simple and Facile Glucose Biosensor Based on Prussian Blue Modified Graphite String

Figure 3

(a) Amperometric response of the string-based glucose biosensor toward successive addition of glucose from 30 μM to 3 mM in 0.1. M PBS solution (pH 7.4) at −0.05 V. (b) The calibration curve (current versus concentration) of glucose.

(a)

(b)