Two-Dimensional Tellurium Nanosheets for the Efficient Nonenzymatic Electrochemical Detection of H<sub>2</sub>O<sub>2</sub>
This study reports, for the first time, the utilization of two-dimensional (2D) tellurium (Te) nanosheets for the efficient nonenzymatic detection of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). H<sub>2</sub>O<sub>2</sub> acts as a pivotal biomarker...
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MDPI AG
2024-01-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/12/2/17 |
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| author | Amit Kumar Shringi Rajeev Kumar Netanya F. Dennis Fei Yan |
| author_facet | Amit Kumar Shringi Rajeev Kumar Netanya F. Dennis Fei Yan |
| author_sort | Amit Kumar Shringi |
| collection | DOAJ |
| description | This study reports, for the first time, the utilization of two-dimensional (2D) tellurium (Te) nanosheets for the efficient nonenzymatic detection of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). H<sub>2</sub>O<sub>2</sub> acts as a pivotal biomarker with widespread applications across environmental, biological, industrial, and food processing domains. However, an excessive accumulation of H<sub>2</sub>O<sub>2</sub> in the body poses a severe threat to human life. Consequently, the imperative need for a selective, sensitive, and cost-effective sensing platform for H<sub>2</sub>O<sub>2</sub> detection has gained paramount significance. Employing a low-cost and straightforward hydrothermal method, Te nanosheets were synthesized to address the escalating demand for a reliable detection platform. The as-synthesized Te nanosheets are characterized through Raman spectroscopy and atomic force microscopy techniques. The electrochemical performance of the Te nanosheets integrated onto a glassy carbon (Te-GC) electrode was thoroughly investigated using cyclic voltammetry, differential pulse voltammetry, and chronoamperometry. The experiments were designed to evaluate the response of the Te-GC electrode in the presence and absence of H<sub>2</sub>O<sub>2</sub>, alongside its performance in the detection of other pertinent interfering analytes. The sensor shows a limit of detection of 0.47 µM and a sensitivity of 27.2 µA µM<sup>−1</sup> cm<sup>−2</sup> towards H<sub>2</sub>O<sub>2</sub>. The outcomes of this study demonstrate the efficacy of Te nanosheets as a promising material for nonenzymatic H<sub>2</sub>O<sub>2</sub> detection in urine samples. The simplicity and cost-effectiveness of the hydrothermal synthesis process, coupled with the notable electrochemical performance of the Te/GC electrode, highlight the potential of Te nanosheets in the development of a robust sensing platform. This research contributes to the ongoing efforts to enhance our capabilities in monitoring and detecting H<sub>2</sub>O<sub>2</sub>, fostering advancements in environmental, biomedical, and industrial applications. |
| first_indexed | 2024-03-07T22:37:27Z |
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| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-03-07T22:37:27Z |
| publishDate | 2024-01-01 |
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| series | Chemosensors |
| spelling | doaj.art-32d841a54b2f4ef59029c18368e36b8c2024-02-23T15:12:08ZengMDPI AGChemosensors2227-90402024-01-011221710.3390/chemosensors12020017Two-Dimensional Tellurium Nanosheets for the Efficient Nonenzymatic Electrochemical Detection of H<sub>2</sub>O<sub>2</sub>Amit Kumar Shringi0Rajeev Kumar1Netanya F. Dennis2Fei Yan3Department of Chemistry and Biochemistry, North Carolina Central University, Durham, NC 27707, USADepartment of Chemistry and Biochemistry, North Carolina Central University, Durham, NC 27707, USADepartment of Chemistry and Biochemistry, North Carolina Central University, Durham, NC 27707, USADepartment of Chemistry and Biochemistry, North Carolina Central University, Durham, NC 27707, USAThis study reports, for the first time, the utilization of two-dimensional (2D) tellurium (Te) nanosheets for the efficient nonenzymatic detection of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). H<sub>2</sub>O<sub>2</sub> acts as a pivotal biomarker with widespread applications across environmental, biological, industrial, and food processing domains. However, an excessive accumulation of H<sub>2</sub>O<sub>2</sub> in the body poses a severe threat to human life. Consequently, the imperative need for a selective, sensitive, and cost-effective sensing platform for H<sub>2</sub>O<sub>2</sub> detection has gained paramount significance. Employing a low-cost and straightforward hydrothermal method, Te nanosheets were synthesized to address the escalating demand for a reliable detection platform. The as-synthesized Te nanosheets are characterized through Raman spectroscopy and atomic force microscopy techniques. The electrochemical performance of the Te nanosheets integrated onto a glassy carbon (Te-GC) electrode was thoroughly investigated using cyclic voltammetry, differential pulse voltammetry, and chronoamperometry. The experiments were designed to evaluate the response of the Te-GC electrode in the presence and absence of H<sub>2</sub>O<sub>2</sub>, alongside its performance in the detection of other pertinent interfering analytes. The sensor shows a limit of detection of 0.47 µM and a sensitivity of 27.2 µA µM<sup>−1</sup> cm<sup>−2</sup> towards H<sub>2</sub>O<sub>2</sub>. The outcomes of this study demonstrate the efficacy of Te nanosheets as a promising material for nonenzymatic H<sub>2</sub>O<sub>2</sub> detection in urine samples. The simplicity and cost-effectiveness of the hydrothermal synthesis process, coupled with the notable electrochemical performance of the Te/GC electrode, highlight the potential of Te nanosheets in the development of a robust sensing platform. This research contributes to the ongoing efforts to enhance our capabilities in monitoring and detecting H<sub>2</sub>O<sub>2</sub>, fostering advancements in environmental, biomedical, and industrial applications.https://www.mdpi.com/2227-9040/12/2/17hydrogen peroxidesensingtelluriumnanosheetselectrochemistry |
| spellingShingle | Amit Kumar Shringi Rajeev Kumar Netanya F. Dennis Fei Yan Two-Dimensional Tellurium Nanosheets for the Efficient Nonenzymatic Electrochemical Detection of H<sub>2</sub>O<sub>2</sub> Chemosensors hydrogen peroxide sensing tellurium nanosheets electrochemistry |
| title | Two-Dimensional Tellurium Nanosheets for the Efficient Nonenzymatic Electrochemical Detection of H<sub>2</sub>O<sub>2</sub> |
| title_full | Two-Dimensional Tellurium Nanosheets for the Efficient Nonenzymatic Electrochemical Detection of H<sub>2</sub>O<sub>2</sub> |
| title_fullStr | Two-Dimensional Tellurium Nanosheets for the Efficient Nonenzymatic Electrochemical Detection of H<sub>2</sub>O<sub>2</sub> |
| title_full_unstemmed | Two-Dimensional Tellurium Nanosheets for the Efficient Nonenzymatic Electrochemical Detection of H<sub>2</sub>O<sub>2</sub> |
| title_short | Two-Dimensional Tellurium Nanosheets for the Efficient Nonenzymatic Electrochemical Detection of H<sub>2</sub>O<sub>2</sub> |
| title_sort | two dimensional tellurium nanosheets for the efficient nonenzymatic electrochemical detection of h sub 2 sub o sub 2 sub |
| topic | hydrogen peroxide sensing tellurium nanosheets electrochemistry |
| url | https://www.mdpi.com/2227-9040/12/2/17 |
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