دورية
Development of Rapid Dispense-Printed Flexible Interdigitated Electrode Modified with rGO-TiO2Nanohybrid for Glucose Detection
| العنوان: | Development of Rapid Dispense-Printed Flexible Interdigitated Electrode Modified with rGO-TiO2Nanohybrid for Glucose Detection |
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| المؤلفون: | Rezali, F. A. Md, Aidit, S. N., Nouxman, M. H. A., Wan Muhamad Hatta, S. F., Soin, N. |
| المصدر: | Journal of the Electrochemical Society; July 2023, Vol. 170 Issue: 7 p077516-077516, 1p |
| مستخلص: | A rapid and facile method in developing a printed electrochemical glucose sensor constructed using flexible interdigitated electrode (IDE) employed with reduced graphene oxide (rGO)-Titanium dioxide (TiO2) is demonstrated. A 2 × 3 silver (Ag)-based IDE array based on a simulated IDE model, was fabricated via a single-step dispense-printing within less than 5 min, while a rGO-TiO2nanohybrid and glucose oxidase (GOx) enzyme was coated on the IDE surface simply via drop-casting method. Exceptional reproducibility and repeatability of the printed IDE functionalized with rGO-TiO2/GOxin terms of electrical and mechanical performance were observed. The stability of the sensor was investigated over a week period, in which 6%–7% performance degradation was recorded based on resistance measurement in flat state, whereas no further significant loss was noted over the same period in bending state. The IDE sensor was tested using chronoamperometry with varied glucose concentrations up to 30 mM, resulted in a stabilized current after 5 s. The sensitivity plot attained depicted a best linear fit of 0.988 obtained at response time of 60 s, whilst covering lowest detection at 0.05 mM and selective detection from ascorbic acid and uric acid. The application of this sensor could contribute as an alternative method to develop a reliable and economical glucose sensing wearable for independent monitoring. |
| قاعدة البيانات: | Supplemental Index |
| تدمد: | 00134651 19457111 |
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| DOI: | 10.1149/1945-7111/ace8c1 |