Fabrication of selective l-glutamic acid sensor in electrochemical technique from wet-chemically prepared RuO2 doped ZnO nanoparticles
In this approach, RuO2 doped ZnO nanoparticles (NPs; 10% RuO2 doping) were prepared by wet-chemical method and characterized by powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Energy-dispersive X-ray spectroscopy (EDS), and Field Emission Scanning Electron Microscopy (FESEM)....
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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ELSEVIER SCIENCE SA
2020
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| Online Access: | http://hdl.handle.net/20.500.11937/88608 |
| _version_ | 1848765052250750976 |
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| author | Alam, M.M. Uddin, M.T. Asiri, A.M. Awual, Rabiul Fazal, M.A. Rahman, M.M. Islam, M.A. |
| author_facet | Alam, M.M. Uddin, M.T. Asiri, A.M. Awual, Rabiul Fazal, M.A. Rahman, M.M. Islam, M.A. |
| author_sort | Alam, M.M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this approach, RuO2 doped ZnO nanoparticles (NPs; 10% RuO2 doping) were prepared by wet-chemical method and characterized by powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Energy-dispersive X-ray spectroscopy (EDS), and Field Emission Scanning Electron Microscopy (FESEM). The slurry of RuO2-doped ZnO NPs in ethanol was deposited as thin film of onto a glassy carbon electrode (GCE) to result in a working electrode to be used for L-glutamic acid (L-GA) sensing probe. The electrochemical response of the sensor was found to be linear in the range of 0.1 nM–0.01 mM in current versus logarithm of concentration plot, called ‘linear dynamic range (LDR)’. The sensitivity of the electrode is found to be 5.42 μAμM−1cm−2. The detection limit is estimated to be 96.0 ± 5.0 pM by using signal-noise ratio of 3. The proposed L-GA sensor has shown excellent reproducibility, good stability and fast response time. It is successfully used to analyze the selective biological sample with the RuO2-doped ZnO nanoparticles fabricated sensor matrix. Thus, this methodology for developing enzyme-less sensor would be the most reliable, efficient, and simple route in the field of healthcare sector in broad scales. |
| first_indexed | 2025-11-14T11:29:07Z |
| format | Journal Article |
| id | curtin-20.500.11937-88608 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:29:07Z |
| publishDate | 2020 |
| publisher | ELSEVIER SCIENCE SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-886082022-06-14T07:54:26Z Fabrication of selective l-glutamic acid sensor in electrochemical technique from wet-chemically prepared RuO2 doped ZnO nanoparticles Alam, M.M. Uddin, M.T. Asiri, A.M. Awual, Rabiul Fazal, M.A. Rahman, M.M. Islam, M.A. Science & Technology Technology Materials Science, Multidisciplinary Materials Science RuO2-Doped ZnO nanoparticles Electrochemical method L-glutamic acid sensor Sensitivity Health care safety GLASSY-CARBON ELECTRODE MONOSODIUM GLUTAMATE OPTICAL-PROPERTIES RUTHENIUM OXIDE NANOCOMPOSITES BIOSENSOR REMOVAL NANOSTRUCTURES COMPOSITES MELAMINE In this approach, RuO2 doped ZnO nanoparticles (NPs; 10% RuO2 doping) were prepared by wet-chemical method and characterized by powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Energy-dispersive X-ray spectroscopy (EDS), and Field Emission Scanning Electron Microscopy (FESEM). The slurry of RuO2-doped ZnO NPs in ethanol was deposited as thin film of onto a glassy carbon electrode (GCE) to result in a working electrode to be used for L-glutamic acid (L-GA) sensing probe. The electrochemical response of the sensor was found to be linear in the range of 0.1 nM–0.01 mM in current versus logarithm of concentration plot, called ‘linear dynamic range (LDR)’. The sensitivity of the electrode is found to be 5.42 μAμM−1cm−2. The detection limit is estimated to be 96.0 ± 5.0 pM by using signal-noise ratio of 3. The proposed L-GA sensor has shown excellent reproducibility, good stability and fast response time. It is successfully used to analyze the selective biological sample with the RuO2-doped ZnO nanoparticles fabricated sensor matrix. Thus, this methodology for developing enzyme-less sensor would be the most reliable, efficient, and simple route in the field of healthcare sector in broad scales. 2020 Journal Article http://hdl.handle.net/20.500.11937/88608 10.1016/j.matchemphys.2020.123029 English ELSEVIER SCIENCE SA restricted |
| spellingShingle | Science & Technology Technology Materials Science, Multidisciplinary Materials Science RuO2-Doped ZnO nanoparticles Electrochemical method L-glutamic acid sensor Sensitivity Health care safety GLASSY-CARBON ELECTRODE MONOSODIUM GLUTAMATE OPTICAL-PROPERTIES RUTHENIUM OXIDE NANOCOMPOSITES BIOSENSOR REMOVAL NANOSTRUCTURES COMPOSITES MELAMINE Alam, M.M. Uddin, M.T. Asiri, A.M. Awual, Rabiul Fazal, M.A. Rahman, M.M. Islam, M.A. Fabrication of selective l-glutamic acid sensor in electrochemical technique from wet-chemically prepared RuO2 doped ZnO nanoparticles |
| title | Fabrication of selective l-glutamic acid sensor in electrochemical technique from wet-chemically prepared RuO2 doped ZnO nanoparticles |
| title_full | Fabrication of selective l-glutamic acid sensor in electrochemical technique from wet-chemically prepared RuO2 doped ZnO nanoparticles |
| title_fullStr | Fabrication of selective l-glutamic acid sensor in electrochemical technique from wet-chemically prepared RuO2 doped ZnO nanoparticles |
| title_full_unstemmed | Fabrication of selective l-glutamic acid sensor in electrochemical technique from wet-chemically prepared RuO2 doped ZnO nanoparticles |
| title_short | Fabrication of selective l-glutamic acid sensor in electrochemical technique from wet-chemically prepared RuO2 doped ZnO nanoparticles |
| title_sort | fabrication of selective l-glutamic acid sensor in electrochemical technique from wet-chemically prepared ruo2 doped zno nanoparticles |
| topic | Science & Technology Technology Materials Science, Multidisciplinary Materials Science RuO2-Doped ZnO nanoparticles Electrochemical method L-glutamic acid sensor Sensitivity Health care safety GLASSY-CARBON ELECTRODE MONOSODIUM GLUTAMATE OPTICAL-PROPERTIES RUTHENIUM OXIDE NANOCOMPOSITES BIOSENSOR REMOVAL NANOSTRUCTURES COMPOSITES MELAMINE |
| url | http://hdl.handle.net/20.500.11937/88608 |