A mimic peroxidase biosensor based on calcined layered double hydroxide for detection of H2O2.
An enzymeless biosensor was explored from Cu-Mg-Al calcined layered double hydroxide (CLDH) modified electrode in this study. The Cu-Mg-Al CLDH greatly promotes the electron transfer between H(2)O(2) and GCE, and it is exemplified toward the non-enzymatic sensing of H(2)O(2). The results indicate that the Cu-Mg-Al CLDH exhibits excellent electrocatalytic property, high sensitivity, good reproducibility, long-term stability, and fast amperometric response toward reduction of H(2)O(2), thus is promising for the future development of man-made mimics of enzyme in H(2)O(2) sensors. This work opens a way to utilize simply Cu-Mg-Al CLDH as an electron mediator to fabricate an efficient H(2)O(2) biosensor, which exhibits great potential applications in varieties of simple, robust, and easy-to-make analytical approaches in the future.
College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong, PR China.
Lin
L
Cui
Huanshun
H
Yin
Jing
J
Dong
Hai
H
Fan
Tao
T
Liu
Peng
P
Ju
Shiyun
S
Ai
D000535:Aluminum / Q000737:chemistry; D015374:Biosensing Techniques / Q000379:methods*; D002118:Calcium / Q000737:chemistry*; D002384:Catalysis; D003300:Copper / Q000737:chemistry; D055664:Electrochemical Techniques / Q000379:methods; D004566:Electrodes; D006861:Hydrogen Peroxide / Q000032:analysis*; D006878:Hydroxides / Q000737:chemistry*; D008274:Magnesium / Q000737:chemistry; D010544:Peroxidases / Q000378:metabolism; D012680:Sensitivity and Specificity
D006878:Hydroxides; D003300:Copper; D006861:Hydrogen Peroxide; D000535:Aluminum; D010544:Peroxidases; D008274:Magnesium; D002118:Calcium