Iodide-Mediated Etching of Gold Nanostar for the Multicolor Visual Detection of Hydrogen Peroxide
A multicolor visual method for the detection of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) was reported based on the iodide-mediated surface etching of gold nanostar (AuNS). First, AuNS was prepared by a seed-mediated method in a HEPES buffer. AuNS shows two different LSP...
| 出版年: | Biosensors |
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| 主要な著者: | , , , |
| フォーマット: | 論文 |
| 言語: | 英語 |
| 出版事項: |
MDPI AG
2023-05-01
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| 主題: | |
| オンライン･アクセス: | https://www.mdpi.com/2079-6374/13/6/585 |
| _version_ | 1849900924322971648 |
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| author | Yunping Lai Beirong Yu Tianran Lin Li Hou |
| author_facet | Yunping Lai Beirong Yu Tianran Lin Li Hou |
| author_sort | Yunping Lai |
| collection | DOAJ |
| container_title | Biosensors |
| description | A multicolor visual method for the detection of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) was reported based on the iodide-mediated surface etching of gold nanostar (AuNS). First, AuNS was prepared by a seed-mediated method in a HEPES buffer. AuNS shows two different LSPR absorbance bands at 736 nm and 550 nm, respectively. Multicolor was generated by iodide-mediated surface etching of AuNS in the presence of H<sub>2</sub>O<sub>2</sub>. Under the optimized conditions, the absorption peak Δλ had a good linear relationship with the concentration of H<sub>2</sub>O<sub>2</sub> with a linear range from 0.67~66.67 μmol L<sup>−1</sup>, and the detection limit is 0.44 μmol L<sup>−1</sup>. It can be used to detect residual H<sub>2</sub>O<sub>2</sub> in tap water samples. This method offered a promising visual method for point-of-care testing of H<sub>2</sub>O<sub>2</sub>-related biomarkers. |
| format | Article |
| id | doaj-art-41369df4c0584e8d8a6b8dc1fcdc5126 |
| institution | Directory of Open Access Journals |
| issn | 2079-6374 |
| language | English |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| spelling | doaj-art-41369df4c0584e8d8a6b8dc1fcdc51262025-08-20T00:59:30ZengMDPI AGBiosensors2079-63742023-05-0113658510.3390/bios13060585Iodide-Mediated Etching of Gold Nanostar for the Multicolor Visual Detection of Hydrogen PeroxideYunping Lai0Beirong Yu1Tianran Lin2Li Hou3School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, ChinaSchool of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, ChinaSchool of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, ChinaSchool of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, ChinaA multicolor visual method for the detection of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) was reported based on the iodide-mediated surface etching of gold nanostar (AuNS). First, AuNS was prepared by a seed-mediated method in a HEPES buffer. AuNS shows two different LSPR absorbance bands at 736 nm and 550 nm, respectively. Multicolor was generated by iodide-mediated surface etching of AuNS in the presence of H<sub>2</sub>O<sub>2</sub>. Under the optimized conditions, the absorption peak Δλ had a good linear relationship with the concentration of H<sub>2</sub>O<sub>2</sub> with a linear range from 0.67~66.67 μmol L<sup>−1</sup>, and the detection limit is 0.44 μmol L<sup>−1</sup>. It can be used to detect residual H<sub>2</sub>O<sub>2</sub> in tap water samples. This method offered a promising visual method for point-of-care testing of H<sub>2</sub>O<sub>2</sub>-related biomarkers.https://www.mdpi.com/2079-6374/13/6/585iodidegold nanostarH<sub>2</sub>O<sub>2</sub> |
| spellingShingle | Yunping Lai Beirong Yu Tianran Lin Li Hou Iodide-Mediated Etching of Gold Nanostar for the Multicolor Visual Detection of Hydrogen Peroxide iodide gold nanostar H<sub>2</sub>O<sub>2</sub> |
| title | Iodide-Mediated Etching of Gold Nanostar for the Multicolor Visual Detection of Hydrogen Peroxide |
| title_full | Iodide-Mediated Etching of Gold Nanostar for the Multicolor Visual Detection of Hydrogen Peroxide |
| title_fullStr | Iodide-Mediated Etching of Gold Nanostar for the Multicolor Visual Detection of Hydrogen Peroxide |
| title_full_unstemmed | Iodide-Mediated Etching of Gold Nanostar for the Multicolor Visual Detection of Hydrogen Peroxide |
| title_short | Iodide-Mediated Etching of Gold Nanostar for the Multicolor Visual Detection of Hydrogen Peroxide |
| title_sort | iodide mediated etching of gold nanostar for the multicolor visual detection of hydrogen peroxide |
| topic | iodide gold nanostar H<sub>2</sub>O<sub>2</sub> |
| url | https://www.mdpi.com/2079-6374/13/6/585 |
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