The Analytical Capabilities of Electrochemical Sensors Based on Transition Metal Oxide Nanomaterials
Voltammetric sensors based on CeO<sub>2</sub>, SnO<sub>2,</sub> CeO<sub>2</sub>·Fe<sub>2</sub>O<sub>3</sub> nanoparticles (NPs) and MnO<sub>2</sub> nanorods (NRs) were developed for the quantification of various organic substanc...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Engineering Proceedings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2673-4591/48/1/13 |
| _version_ | 1797241270389702656 |
|---|---|
| author | Guzel Ziyatdinova Liliya Gimadutdinova Tatyana Antonova Irina Grigoreva Elvira Yakupova |
| author_facet | Guzel Ziyatdinova Liliya Gimadutdinova Tatyana Antonova Irina Grigoreva Elvira Yakupova |
| author_sort | Guzel Ziyatdinova |
| collection | DOAJ |
| description | Voltammetric sensors based on CeO<sub>2</sub>, SnO<sub>2,</sub> CeO<sub>2</sub>·Fe<sub>2</sub>O<sub>3</sub> nanoparticles (NPs) and MnO<sub>2</sub> nanorods (NRs) were developed for the quantification of various organic substances. Surfactant media were applied as dispersive agents for metal oxide nanomaterials, providing a high stability of the dispersions after sonication and a decrease in the NPs’ size, as well as the preconcentration of the target analytes at the sensor surface due to the hydrophobic interactions between the surfactant and the analyte molecules. Natural phenolics (quercetin, rutin, gallic acid, taxifolin, eugenol, vanillin, and hesperidin), propyl gallate, α-lipoic acid, and synthetic food colorants (tartrazine, brilliant blue FCF, and sudan I) were studied as analytes. The effect of the nature and concentration of the surfactant on the target analyte response was evaluated. Cationic surfactants (cetylpyridinium (CPB) or cetyltriphenylphosphonium bromides (CTPPB)) showed the best effect for the majority of the analytes. Wide linear dynamic ranges and low detection limits were obtained and were improved vs. reported to date. The simultaneous quantification of tartrazine and brilliant blue FCF was achieved with a high selectivity. The practical applicability of the sensors was shown on the real samples and was validated by comparison to independent methods. |
| first_indexed | 2024-04-24T18:20:39Z |
| format | Article |
| id | doaj.art-d097dcc2274b48b99f9edb90c7d2b1e8 |
| institution | Directory Open Access Journal |
| issn | 2673-4591 |
| language | English |
| last_indexed | 2024-04-24T18:20:39Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Engineering Proceedings |
| spelling | doaj.art-d097dcc2274b48b99f9edb90c7d2b1e82024-03-27T13:36:03ZengMDPI AGEngineering Proceedings2673-45912023-09-014811310.3390/CSAC2023-14916The Analytical Capabilities of Electrochemical Sensors Based on Transition Metal Oxide NanomaterialsGuzel Ziyatdinova0Liliya Gimadutdinova1Tatyana Antonova2Irina Grigoreva3Elvira Yakupova4Analytical Chemistry Department, Kazan Federal University, Kremleyevskaya, 18, 420008 Kazan, RussiaAnalytical Chemistry Department, Kazan Federal University, Kremleyevskaya, 18, 420008 Kazan, RussiaAnalytical Chemistry Department, Kazan Federal University, Kremleyevskaya, 18, 420008 Kazan, RussiaAnalytical Chemistry Department, Kazan Federal University, Kremleyevskaya, 18, 420008 Kazan, RussiaAnalytical Chemistry Department, Kazan Federal University, Kremleyevskaya, 18, 420008 Kazan, RussiaVoltammetric sensors based on CeO<sub>2</sub>, SnO<sub>2,</sub> CeO<sub>2</sub>·Fe<sub>2</sub>O<sub>3</sub> nanoparticles (NPs) and MnO<sub>2</sub> nanorods (NRs) were developed for the quantification of various organic substances. Surfactant media were applied as dispersive agents for metal oxide nanomaterials, providing a high stability of the dispersions after sonication and a decrease in the NPs’ size, as well as the preconcentration of the target analytes at the sensor surface due to the hydrophobic interactions between the surfactant and the analyte molecules. Natural phenolics (quercetin, rutin, gallic acid, taxifolin, eugenol, vanillin, and hesperidin), propyl gallate, α-lipoic acid, and synthetic food colorants (tartrazine, brilliant blue FCF, and sudan I) were studied as analytes. The effect of the nature and concentration of the surfactant on the target analyte response was evaluated. Cationic surfactants (cetylpyridinium (CPB) or cetyltriphenylphosphonium bromides (CTPPB)) showed the best effect for the majority of the analytes. Wide linear dynamic ranges and low detection limits were obtained and were improved vs. reported to date. The simultaneous quantification of tartrazine and brilliant blue FCF was achieved with a high selectivity. The practical applicability of the sensors was shown on the real samples and was validated by comparison to independent methods.https://www.mdpi.com/2673-4591/48/1/13electrochemical sensorsvoltammetrychemically modified electrodesmetal oxide nanomaterialssurfactantsantioxidants |
| spellingShingle | Guzel Ziyatdinova Liliya Gimadutdinova Tatyana Antonova Irina Grigoreva Elvira Yakupova The Analytical Capabilities of Electrochemical Sensors Based on Transition Metal Oxide Nanomaterials Engineering Proceedings electrochemical sensors voltammetry chemically modified electrodes metal oxide nanomaterials surfactants antioxidants |
| title | The Analytical Capabilities of Electrochemical Sensors Based on Transition Metal Oxide Nanomaterials |
| title_full | The Analytical Capabilities of Electrochemical Sensors Based on Transition Metal Oxide Nanomaterials |
| title_fullStr | The Analytical Capabilities of Electrochemical Sensors Based on Transition Metal Oxide Nanomaterials |
| title_full_unstemmed | The Analytical Capabilities of Electrochemical Sensors Based on Transition Metal Oxide Nanomaterials |
| title_short | The Analytical Capabilities of Electrochemical Sensors Based on Transition Metal Oxide Nanomaterials |
| title_sort | analytical capabilities of electrochemical sensors based on transition metal oxide nanomaterials |
| topic | electrochemical sensors voltammetry chemically modified electrodes metal oxide nanomaterials surfactants antioxidants |
| url | https://www.mdpi.com/2673-4591/48/1/13 |
| work_keys_str_mv | AT guzelziyatdinova theanalyticalcapabilitiesofelectrochemicalsensorsbasedontransitionmetaloxidenanomaterials AT liliyagimadutdinova theanalyticalcapabilitiesofelectrochemicalsensorsbasedontransitionmetaloxidenanomaterials AT tatyanaantonova theanalyticalcapabilitiesofelectrochemicalsensorsbasedontransitionmetaloxidenanomaterials AT irinagrigoreva theanalyticalcapabilitiesofelectrochemicalsensorsbasedontransitionmetaloxidenanomaterials AT elvirayakupova theanalyticalcapabilitiesofelectrochemicalsensorsbasedontransitionmetaloxidenanomaterials AT guzelziyatdinova analyticalcapabilitiesofelectrochemicalsensorsbasedontransitionmetaloxidenanomaterials AT liliyagimadutdinova analyticalcapabilitiesofelectrochemicalsensorsbasedontransitionmetaloxidenanomaterials AT tatyanaantonova analyticalcapabilitiesofelectrochemicalsensorsbasedontransitionmetaloxidenanomaterials AT irinagrigoreva analyticalcapabilitiesofelectrochemicalsensorsbasedontransitionmetaloxidenanomaterials AT elvirayakupova analyticalcapabilitiesofelectrochemicalsensorsbasedontransitionmetaloxidenanomaterials |