Glucose biosensor based on electrodeposited platinum nanoparticles and three-dimensional porous chitosan membranes.
The chitosan with three-dimensional porous structure greatly increased the effective electrode surface for loading of platinum nanoparticles and promoted efficient electron transfer. The resulting biosensor had a response time (within 5 s) and a linear response from 6 μM to 4.2 mM glucose with a detection limit of 2 μM (S/N=3). Moreover, the methodology can be applied for the immobilization of other enzymes.
Chen
Haiwei
H
Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, People's Republic of China. w420072c@163.com
Yuan
Ruo
R
Chai
Yaqin
Y
Wang
Jinfen
J
Li
Wenjuan
W
D015374:Biosensing Techniques / Q000379:methods*; D048271:Chitosan / Q000737:chemistry; D004800:Enzymes, Immobilized / Q000737:chemistry / Q000378:metabolism*; D005947:Glucose / Q000032:analysis*; D008566:Membranes / Q000737:chemistry; D053758:Nanoparticles; D010984:Platinum / Q000737:chemistry / Q000378:metabolism
D004800:Enzymes, Immobilized; D010984:Platinum; D048271:Chitosan; D005947:Glucose