title: Pseudo-bi-enzyme glucose sensor: ZnS hollow spheres and glucose oxidase concerted catalysis glucose.
abstract: This work creatively uses peroxidase-like ZnS hollow spheres (ZnS HSs) to cooperate with glucose oxidase (GOx) for glucose determinations. This approach is that the ZnS HSs electrocatalytically oxidate the enzymatically generated H2O2 to O2, and then the O2 circularly participates in the previous glucose oxidation by glucose oxidase. Au nanoparticles (AuNPs) and carbon nanotubes (CNTs) are used as electron transfer and enzyme immobilization matrices, respectively. The biosensor of glucose oxidase-carbon nanotubes-Au nanoparticles-ZnS hollow spheres-gold electrode (GOx-CNT-AuNPs-ZnS HSs-GE) exhibits a rapid response, a low detection limit (10 μM), a wide linear range (20 μM to 7 mM) as well as good anti-interference, long-term longevity and reproducibility.
authors.affiliation: School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Shuai
authors.forename: Changhua
authors.initials: C
authors.lastname: Liu
authors.forename: Jia
authors.initials: J
authors.lastname: Wang
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Cui
authors.forename: Ling
authors.initials: L
authors.lastname: Nie
mesh_terms: D055162:Biocatalysis; D015374:Biosensing Techniques / Q000379:methods*; D001786:Blood Glucose / Q000032:analysis / Q000737:chemistry; D004563:Electrochemistry; D005947:Glucose / Q000032:analysis* / Q000737:chemistry; D005949:Glucose Oxidase / Q000378:metabolism*; D006046:Gold / Q000737:chemistry; D006801:Humans; D006861:Hydrogen Peroxide / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry; D010084:Oxidation-Reduction; D013440:Sulfides / Q000737:chemistry*; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D001786:Blood Glucose; D037742:Nanotubes, Carbon; D013440:Sulfides; D017967:Zinc Compounds; D006046:Gold; D006861:Hydrogen Peroxide; D005949:Glucose Oxidase; D005947:Glucose; C031238:zinc sulfide