Hot-Electron-Activated Peroxidase-Mimicking Activity of Ultrathin Pd Nanozymes
Abstract Light-activated nanozymes can provide a wealth of new opportunities for the chemical industry and biotechnology. However, present remote-controlled catalytic systems are still far from satisfactory. Herein, we present an interesting example of applying ultrathin Pd nanosheets (Pd NSs) as a...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-08-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s11671-020-03388-9 |
| _version_ | 1797706633601613824 |
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| author | Yonghua Tang Xueqing Xiong Chengjie Xu Deshuai Yu Yanyan Huang Changxu Lin Xiangyang Liu Youhui Lin |
| author_facet | Yonghua Tang Xueqing Xiong Chengjie Xu Deshuai Yu Yanyan Huang Changxu Lin Xiangyang Liu Youhui Lin |
| author_sort | Yonghua Tang |
| collection | DOAJ |
| description | Abstract Light-activated nanozymes can provide a wealth of new opportunities for the chemical industry and biotechnology. However, present remote-controlled catalytic systems are still far from satisfactory. Herein, we present an interesting example of applying ultrathin Pd nanosheets (Pd NSs) as a light-controllable peroxidase mimic. Since most of Pd atoms are exposed on their surface, Pd NSs with a thickness of 1.1 nm possess high peroxidase-like activity. More importantly, under light excitation, such intrinsic activity can be further activated by a nearly 2.4- to 3.2-fold. Such a phenomenon can be ascribed to the unique optical property of ultrathin Pd NSs, which can efficiently capture photons to generate hot electrons via surface plasmon resonance effect and thus promote the in situ decomposition of H2O2 into reactive oxygen species radicals (O*). This enhanced catalysis can also be used for real-time and highly sensitive colorimetric detection of H2O2. We expect our work can provide valuable insights into the rational design of artificial nanozymes with controllable and efficient activity in biomedical diagnostics, drug delivery, and environmental chemistry. |
| first_indexed | 2024-03-12T05:54:12Z |
| format | Article |
| id | doaj.art-22c9a66a3f174732ad25d900bfc9fadf |
| institution | Directory Open Access Journal |
| issn | 1556-276X |
| language | English |
| last_indexed | 2024-03-12T05:54:12Z |
| publishDate | 2020-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-22c9a66a3f174732ad25d900bfc9fadf2023-09-03T04:42:58ZengSpringerOpenNanoscale Research Letters1556-276X2020-08-011511910.1186/s11671-020-03388-9Hot-Electron-Activated Peroxidase-Mimicking Activity of Ultrathin Pd NanozymesYonghua Tang0Xueqing Xiong1Chengjie Xu2Deshuai Yu3Yanyan Huang4Changxu Lin5Xiangyang Liu6Youhui Lin7Research Institute for Biomimetics and Soft Matter, Department of Physics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen UniversityResearch Institute for Biomimetics and Soft Matter, Department of Physics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen UniversityResearch Institute for Biomimetics and Soft Matter, Department of Physics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen UniversityResearch Institute for Biomimetics and Soft Matter, Department of Physics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen UniversityCollege of Light Industry and Food Engineering, Nanjing Forestry UniversityResearch Institute for Biomimetics and Soft Matter, Department of Physics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen UniversityResearch Institute for Biomimetics and Soft Matter, Department of Physics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen UniversityResearch Institute for Biomimetics and Soft Matter, Department of Physics, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen UniversityAbstract Light-activated nanozymes can provide a wealth of new opportunities for the chemical industry and biotechnology. However, present remote-controlled catalytic systems are still far from satisfactory. Herein, we present an interesting example of applying ultrathin Pd nanosheets (Pd NSs) as a light-controllable peroxidase mimic. Since most of Pd atoms are exposed on their surface, Pd NSs with a thickness of 1.1 nm possess high peroxidase-like activity. More importantly, under light excitation, such intrinsic activity can be further activated by a nearly 2.4- to 3.2-fold. Such a phenomenon can be ascribed to the unique optical property of ultrathin Pd NSs, which can efficiently capture photons to generate hot electrons via surface plasmon resonance effect and thus promote the in situ decomposition of H2O2 into reactive oxygen species radicals (O*). This enhanced catalysis can also be used for real-time and highly sensitive colorimetric detection of H2O2. We expect our work can provide valuable insights into the rational design of artificial nanozymes with controllable and efficient activity in biomedical diagnostics, drug delivery, and environmental chemistry.http://link.springer.com/article/10.1186/s11671-020-03388-9NanozymesUltrathin Pd nanosheetsPeroxidase-mimickingVisible lightHot electron |
| spellingShingle | Yonghua Tang Xueqing Xiong Chengjie Xu Deshuai Yu Yanyan Huang Changxu Lin Xiangyang Liu Youhui Lin Hot-Electron-Activated Peroxidase-Mimicking Activity of Ultrathin Pd Nanozymes Nanoscale Research Letters Nanozymes Ultrathin Pd nanosheets Peroxidase-mimicking Visible light Hot electron |
| title | Hot-Electron-Activated Peroxidase-Mimicking Activity of Ultrathin Pd Nanozymes |
| title_full | Hot-Electron-Activated Peroxidase-Mimicking Activity of Ultrathin Pd Nanozymes |
| title_fullStr | Hot-Electron-Activated Peroxidase-Mimicking Activity of Ultrathin Pd Nanozymes |
| title_full_unstemmed | Hot-Electron-Activated Peroxidase-Mimicking Activity of Ultrathin Pd Nanozymes |
| title_short | Hot-Electron-Activated Peroxidase-Mimicking Activity of Ultrathin Pd Nanozymes |
| title_sort | hot electron activated peroxidase mimicking activity of ultrathin pd nanozymes |
| topic | Nanozymes Ultrathin Pd nanosheets Peroxidase-mimicking Visible light Hot electron |
| url | http://link.springer.com/article/10.1186/s11671-020-03388-9 |
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