Glucose Biosensor Based on Glucose Oxidase-Horseradish Peroxidase/Multiporous Tin Oxide (SnO2) Modified Electrode
| Autor: | Rajan Jose, A.K.M. Kafi, Aizam Bin Kasri |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Detection limit
Materials science biology Biomedical Engineering Bioengineering 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Tin oxide 01 natural sciences Amperometry 0104 chemical sciences Electrode biology.protein General Materials Science Glucose oxidase Cyclic voltammetry 0210 nano-technology Biosensor Nuclear chemistry Electrode potential |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 21:3059-3064 |
| ISSN: | 1533-4880 |
| DOI: | 10.1166/jnn.2021.19283 |
| Popis: | The fabrication of a network of glucose oxidase-horseradish peroxidase/tin oxide (GOx-HRP/SnO2), immobilized onto a glassy carbon electrode (GCE) and its utilization as a biosensor for glucose detection is reported. The network established with GOx-HRP/SnO2 possess high sensitivity and stability by performing the electrocatalytic features in the sensing of glucose. The turbidity of fabrication had been scanned and analyzed using UV-vis spectroscopy. The morphology and composition of the fabricated GOx-HRP/SnO2 networks were characterized by scanning electron microscopy (SEM). Cyclic voltammetry and amperometry were employed to study the electrochemical properties of the proposed biosensor. The effect of applied electrode potential and pH were systemically investigated. The biosensor responds to glucose at work potential values between −400 mV, and exhibited a lower detection limit (0.025 mM) and long linear range (0.25 to 7.0 mM), and was resistant to common interferences. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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