Green synthesized CaO decorated ternary CaO/g-C3N4/PVA nanocomposite modified glassy carbon electrode for enhanced electrochemical detection of caffeic acid
A highly selective, sensitive caffeic acid (CA) detection based on calcium oxide nanoparticles (CaO NPs) derived from extract of Moringa oleifera leaves decorated graphitic carbon nitride covalently grafted poly vinyl alcohol (CaO/g-C3N4/PVA) nanocomposite modified glassy carbon electrode (GCE) was...
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| Format: | Article |
| Language: | English |
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Nature Research
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/116189/ http://psasir.upm.edu.my/id/eprint/116189/1/116189.pdf |
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| author | Karthika, Annamalai Sudhakar, C. Karuppasamy, Periyakaruppan Tamilselvi, Baluchamy Meena, Subramaniam Anantharaju, Kurupalya Shivram Tan, K. B. Murthy, H. C. Ananda |
| author_facet | Karthika, Annamalai Sudhakar, C. Karuppasamy, Periyakaruppan Tamilselvi, Baluchamy Meena, Subramaniam Anantharaju, Kurupalya Shivram Tan, K. B. Murthy, H. C. Ananda |
| author_sort | Karthika, Annamalai |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A highly selective, sensitive caffeic acid (CA) detection based on calcium oxide nanoparticles (CaO NPs) derived from extract of Moringa oleifera leaves decorated graphitic carbon nitride covalently grafted poly vinyl alcohol (CaO/g-C3N4/PVA) nanocomposite modified glassy carbon electrode (GCE) was studied. A facile sonochemical method was adapted to synthesis nanomaterials and characterized by HR-TEM (High resolution transmission electron microscopy), FT-IR (Fourier transform infrared spectroscopy), XRD (X-ray diffraction), FE-SEM (Field emission scanning electron microscopy), EDX (Energy dispersive X-ray analysis), Mapping and BET (Brunauer-Emmett-Teller) analysis, and electrochemical techniques. The nanocomposite modified GCE exhibited an excellent catalytic performance to the oxidation of CA under optimized conditions owing to better electron transfer efficiency, conductivity and high surface area of the electrode material. The present electrochemical sensor showed high selectivity towards the determination of 10 µM CA in the presence of 100-fold higher concentrations of interferents. The modified CA sensor exhibited a wide sensing linear range from 0.01 µM to 70 µM and the detection limit (LOD) was found to be 0.0024 µM (S/N = 3) in 0.1 M phosphate buffer saline (PBS) as a supporting electrolyte at pH 7.0. The fabricated CA sensor provides an excellent stability, reproducibility and selectivity for the determination of CA. The modified CA sensor was applied to real blood plasma samples and obtained good recovery (97.6-100.1%) results. © The Author(s) 2024. |
| first_indexed | 2025-11-15T14:28:39Z |
| format | Article |
| id | upm-116189 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:28:39Z |
| publishDate | 2024 |
| publisher | Nature Research |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1161892025-03-20T04:22:04Z http://psasir.upm.edu.my/id/eprint/116189/ Green synthesized CaO decorated ternary CaO/g-C3N4/PVA nanocomposite modified glassy carbon electrode for enhanced electrochemical detection of caffeic acid Karthika, Annamalai Sudhakar, C. Karuppasamy, Periyakaruppan Tamilselvi, Baluchamy Meena, Subramaniam Anantharaju, Kurupalya Shivram Tan, K. B. Murthy, H. C. Ananda A highly selective, sensitive caffeic acid (CA) detection based on calcium oxide nanoparticles (CaO NPs) derived from extract of Moringa oleifera leaves decorated graphitic carbon nitride covalently grafted poly vinyl alcohol (CaO/g-C3N4/PVA) nanocomposite modified glassy carbon electrode (GCE) was studied. A facile sonochemical method was adapted to synthesis nanomaterials and characterized by HR-TEM (High resolution transmission electron microscopy), FT-IR (Fourier transform infrared spectroscopy), XRD (X-ray diffraction), FE-SEM (Field emission scanning electron microscopy), EDX (Energy dispersive X-ray analysis), Mapping and BET (Brunauer-Emmett-Teller) analysis, and electrochemical techniques. The nanocomposite modified GCE exhibited an excellent catalytic performance to the oxidation of CA under optimized conditions owing to better electron transfer efficiency, conductivity and high surface area of the electrode material. The present electrochemical sensor showed high selectivity towards the determination of 10 µM CA in the presence of 100-fold higher concentrations of interferents. The modified CA sensor exhibited a wide sensing linear range from 0.01 µM to 70 µM and the detection limit (LOD) was found to be 0.0024 µM (S/N = 3) in 0.1 M phosphate buffer saline (PBS) as a supporting electrolyte at pH 7.0. The fabricated CA sensor provides an excellent stability, reproducibility and selectivity for the determination of CA. The modified CA sensor was applied to real blood plasma samples and obtained good recovery (97.6-100.1%) results. © The Author(s) 2024. Nature Research 2024 Article PeerReviewed text en cc_by_nc_nd_4 http://psasir.upm.edu.my/id/eprint/116189/1/116189.pdf Karthika, Annamalai and Sudhakar, C. and Karuppasamy, Periyakaruppan and Tamilselvi, Baluchamy and Meena, Subramaniam and Anantharaju, Kurupalya Shivram and Tan, K. B. and Murthy, H. C. Ananda (2024) Green synthesized CaO decorated ternary CaO/g-C3N4/PVA nanocomposite modified glassy carbon electrode for enhanced electrochemical detection of caffeic acid. Scientific Reports, 14 (1). art. no. 28714. ISSN 2045-2322; eISSN: 2045-2322 https://www.nature.com/articles/s41598-024-80146-2?error=cookies_not_supported&code=f2c5b297-e277-4325-90a6-4bf2e6d19df9 10.1038/s41598-024-80146-2 |
| spellingShingle | Karthika, Annamalai Sudhakar, C. Karuppasamy, Periyakaruppan Tamilselvi, Baluchamy Meena, Subramaniam Anantharaju, Kurupalya Shivram Tan, K. B. Murthy, H. C. Ananda Green synthesized CaO decorated ternary CaO/g-C3N4/PVA nanocomposite modified glassy carbon electrode for enhanced electrochemical detection of caffeic acid |
| title | Green synthesized CaO decorated ternary CaO/g-C3N4/PVA nanocomposite modified glassy carbon electrode for enhanced electrochemical detection of caffeic acid |
| title_full | Green synthesized CaO decorated ternary CaO/g-C3N4/PVA nanocomposite modified glassy carbon electrode for enhanced electrochemical detection of caffeic acid |
| title_fullStr | Green synthesized CaO decorated ternary CaO/g-C3N4/PVA nanocomposite modified glassy carbon electrode for enhanced electrochemical detection of caffeic acid |
| title_full_unstemmed | Green synthesized CaO decorated ternary CaO/g-C3N4/PVA nanocomposite modified glassy carbon electrode for enhanced electrochemical detection of caffeic acid |
| title_short | Green synthesized CaO decorated ternary CaO/g-C3N4/PVA nanocomposite modified glassy carbon electrode for enhanced electrochemical detection of caffeic acid |
| title_sort | green synthesized cao decorated ternary cao/g-c3n4/pva nanocomposite modified glassy carbon electrode for enhanced electrochemical detection of caffeic acid |
| url | http://psasir.upm.edu.my/id/eprint/116189/ http://psasir.upm.edu.my/id/eprint/116189/ http://psasir.upm.edu.my/id/eprint/116189/ http://psasir.upm.edu.my/id/eprint/116189/1/116189.pdf |