Study of iron oxide nanoparticles modified flexible substrate for glucose sensor application
| dc.contributor.author | Muhamad Jufre Hanif Bin Abd Halim | |
| dc.date.accessioned | 2021-02-17T02:38:27Z | |
| dc.date.available | 2021-02-17T02:38:27Z | |
| dc.date.issued | 2019-07 | |
| dc.description.abstract | In this study, iron oxide nanoparticles (IONPs) was successfully synthesized using the co-precipitation method and functionalized with citric acid (CA) Phase presence and crystallinity of IONPs was determined using X-ray diffractometer (XRD). Morphology of IONPs was observed using Transmission Electron Microscope (TEM) and using the ImageJ software. XRD analysis showed that IONPs was in magnetite phase with the PDF number 01-072-8152. TEM analysis showed that IONPs has 12 nm particles size. The synthesized IONPs-CA were used to self-assembled with the presence of APTES as the linker. Then, GOx enzyme was immobilized followed by Nafion to form Nafion/GOx/IONPs-CA/APTES/ITO electrode. Several parameters were studied, effect of APTES concentration, effect of IONPs-CA concentration, and effect of enzyme loading concentration were conducted. Cyclic voltammetry (CV) analysis was used to obtain electrochemical properties of electrodes. The best concentration of APTES for IONPs-CA to self-assembly was 3.0% APTES while 2.0 mg/ml of IONPs-CA was the best concentration to immobilize the GOx enzyme. The optimum GOx enzyme concentration was 7.0 mg/ml that showed high response current in CV analysis. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/11316 | |
| dc.language.iso | en | en_US |
| dc.title | Study of iron oxide nanoparticles modified flexible substrate for glucose sensor application | en_US |
| dc.type | Other | en_US |
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