Atom absorption energy directed symmetry-breaking synthesis of Au-Ag hierarchical nanostructures and their efficient photothermal conversion
Asymmetric plasmonic hierarchical nanostructures (HNs) are of great significance in optics, catalysis, and sensors, but the complex growth kinetics and lack of fine structure design limit their practical applications. Herein, a new atom absorption energy strategy is developed to achieve a series of...
| Main Authors: | , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Online Access: | https://hdl.handle.net/10356/170552 |
| _version_ | 1811694130211848192 |
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| author | Zeng, Pan Hang, Lifeng Zhang, Guofeng Wang, Yifan Chen, Zhiming Yu, Jie Zhang, Tao Cai, Weiping Li, Yue |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Zeng, Pan Hang, Lifeng Zhang, Guofeng Wang, Yifan Chen, Zhiming Yu, Jie Zhang, Tao Cai, Weiping Li, Yue |
| author_sort | Zeng, Pan |
| collection | NTU |
| description | Asymmetric plasmonic hierarchical nanostructures (HNs) are of great significance in optics, catalysis, and sensors, but the complex growth kinetics and lack of fine structure design limit their practical applications. Herein, a new atom absorption energy strategy is developed to achieve a series of Au-Ag HNs with the continuously tuned contact area in Janus and Ag island number/size on Au seeds. Different from the traditional passive growth mode, this strategy endows seed with a hand to capture the hetero atoms in a proactive manner, which is beyond the size, shape, and assembles of Au seed. Density functional theory reveals ththe adsorption of PDDA on Au surface leads to lower formation energy of Au-Ag bonds (-3.96 eV) than FSDNA modified Au surface (-2.44 eV). The competitive adsorption of two ligands on Au seed is the decisive factor for the formation of diverse Au-Ag HNs. In particular, the Au-Ag2 HNs exhibit outstanding photothermal conversion capability in the near-infrared window, and in vivo experiments verify them as superior photothermal therapy agents. This work highlights the importance of the atom absorption energy strategy in unlocking the diversity of HNs and may push the synthesis and application of superstructures to a higher level. |
| first_indexed | 2024-10-01T07:02:41Z |
| format | Journal Article |
| id | ntu-10356/170552 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:02:41Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1705522023-09-19T04:23:50Z Atom absorption energy directed symmetry-breaking synthesis of Au-Ag hierarchical nanostructures and their efficient photothermal conversion Zeng, Pan Hang, Lifeng Zhang, Guofeng Wang, Yifan Chen, Zhiming Yu, Jie Zhang, Tao Cai, Weiping Li, Yue School of Physical and Mathematical Sciences Science::Physics Atom Absorption Energy Growth Mechanisms Asymmetric plasmonic hierarchical nanostructures (HNs) are of great significance in optics, catalysis, and sensors, but the complex growth kinetics and lack of fine structure design limit their practical applications. Herein, a new atom absorption energy strategy is developed to achieve a series of Au-Ag HNs with the continuously tuned contact area in Janus and Ag island number/size on Au seeds. Different from the traditional passive growth mode, this strategy endows seed with a hand to capture the hetero atoms in a proactive manner, which is beyond the size, shape, and assembles of Au seed. Density functional theory reveals ththe adsorption of PDDA on Au surface leads to lower formation energy of Au-Ag bonds (-3.96 eV) than FSDNA modified Au surface (-2.44 eV). The competitive adsorption of two ligands on Au seed is the decisive factor for the formation of diverse Au-Ag HNs. In particular, the Au-Ag2 HNs exhibit outstanding photothermal conversion capability in the near-infrared window, and in vivo experiments verify them as superior photothermal therapy agents. This work highlights the importance of the atom absorption energy strategy in unlocking the diversity of HNs and may push the synthesis and application of superstructures to a higher level. The authors acknowledge financial support from the National Science Fund for Distinguished Young Scholars (Grant No. 51825103), the Natural Science Foundation of China (Grant Nos. 52001306, 51903162, 52171232), and the HFIPS Director's Fund (Grant No. YZJJZX202019). The Scientific Instrument Developing Project of the Chinese Academy of Sciences (Grant No. E14BBGU52G1). 2023-09-19T04:23:50Z 2023-09-19T04:23:50Z 2022 Journal Article Zeng, P., Hang, L., Zhang, G., Wang, Y., Chen, Z., Yu, J., Zhang, T., Cai, W. & Li, Y. (2022). Atom absorption energy directed symmetry-breaking synthesis of Au-Ag hierarchical nanostructures and their efficient photothermal conversion. Small (Weinheim An Der Bergstrasse, Germany), 18(46), e2204748-. https://dx.doi.org/10.1002/smll.202204748 1613-6810 https://hdl.handle.net/10356/170552 10.1002/smll.202204748 36180406 2-s2.0-85139001346 46 18 e2204748 en Small (Weinheim an der Bergstrasse, Germany) © 2022 Wiley-VCH GmbH. All rights reserved. |
| spellingShingle | Science::Physics Atom Absorption Energy Growth Mechanisms Zeng, Pan Hang, Lifeng Zhang, Guofeng Wang, Yifan Chen, Zhiming Yu, Jie Zhang, Tao Cai, Weiping Li, Yue Atom absorption energy directed symmetry-breaking synthesis of Au-Ag hierarchical nanostructures and their efficient photothermal conversion |
| title | Atom absorption energy directed symmetry-breaking synthesis of Au-Ag hierarchical nanostructures and their efficient photothermal conversion |
| title_full | Atom absorption energy directed symmetry-breaking synthesis of Au-Ag hierarchical nanostructures and their efficient photothermal conversion |
| title_fullStr | Atom absorption energy directed symmetry-breaking synthesis of Au-Ag hierarchical nanostructures and their efficient photothermal conversion |
| title_full_unstemmed | Atom absorption energy directed symmetry-breaking synthesis of Au-Ag hierarchical nanostructures and their efficient photothermal conversion |
| title_short | Atom absorption energy directed symmetry-breaking synthesis of Au-Ag hierarchical nanostructures and their efficient photothermal conversion |
| title_sort | atom absorption energy directed symmetry breaking synthesis of au ag hierarchical nanostructures and their efficient photothermal conversion |
| topic | Science::Physics Atom Absorption Energy Growth Mechanisms |
| url | https://hdl.handle.net/10356/170552 |
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