2D wrinkle assisted zigzag plasmonic chains for isotropic SERS enhancement
Abstract Template-assisted colloidal self-assembly has gained significant attention due to its flexibility and versatility. By precisely controlling the shape of the template, it is possible to achieve custom-designed nanoparticle assemblies. However, a major challenge remains in fabricating these t...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-87504-8 |
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| author | Ziwen Yu Swagato Sarkar Sezer Seçkin Ningwei Sun Anik Kumar Ghosh Sven Wießner Ziwei Zhou Andreas Fery |
| author_facet | Ziwen Yu Swagato Sarkar Sezer Seçkin Ningwei Sun Anik Kumar Ghosh Sven Wießner Ziwei Zhou Andreas Fery |
| author_sort | Ziwen Yu |
| collection | DOAJ |
| description | Abstract Template-assisted colloidal self-assembly has gained significant attention due to its flexibility and versatility. By precisely controlling the shape of the template, it is possible to achieve custom-designed nanoparticle assemblies. However, a major challenge remains in fabricating these templates over large areas at a low cost. Recently, one-dimensional (1D) nano-wrinkle structures have been effectively used for the linear assembly of single-chain or multi-chain nanoparticles, which feature abundant interparticle nanogaps that facilitate efficient plasmonic coupling. To further enhance these assemblies by incorporating diffraction modes, we develop two-dimensional (2D) zigzag wrinkle structures that successfully assemble nanoparticles into plasmonic zigzag chains. Micro spectral measurements and FDTD simulations reveal that zigzag assemblies of plasmonic nanoparticle chains offer isotropic behavior and exhibit stronger plasmonic coupling compared to 1D assemblies, which could be highly beneficial for sensing applications. Due to the responsive PANI shell encapsulating the gold nanoparticles, this 2D zigzag assembly enables flexible tuning of plasmonic resonance under pH regulation. |
| format | Article |
| id | doaj-art-bc0f3b4ace8f4f5a81390c8f5ad06540 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-bc0f3b4ace8f4f5a81390c8f5ad065402025-02-02T12:17:58ZengNature PortfolioScientific Reports2045-23222025-01-0115111510.1038/s41598-025-87504-82D wrinkle assisted zigzag plasmonic chains for isotropic SERS enhancementZiwen Yu0Swagato Sarkar1Sezer Seçkin2Ningwei Sun3Anik Kumar Ghosh4Sven Wießner5Ziwei Zhou6Andreas Fery7Institute of Physical Chemistry and Polymer Physics, Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)Institute of Physical Chemistry and Polymer Physics, Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)Institute of Physical Chemistry and Polymer Physics, Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)Institute of Macromolecular Chemistry, Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)Institute of Polymer Materials, Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)Institute of Materials Science, Technische Universität DresdenInstitute of Physical Chemistry and Polymer Physics, Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)Institute of Physical Chemistry and Polymer Physics, Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)Abstract Template-assisted colloidal self-assembly has gained significant attention due to its flexibility and versatility. By precisely controlling the shape of the template, it is possible to achieve custom-designed nanoparticle assemblies. However, a major challenge remains in fabricating these templates over large areas at a low cost. Recently, one-dimensional (1D) nano-wrinkle structures have been effectively used for the linear assembly of single-chain or multi-chain nanoparticles, which feature abundant interparticle nanogaps that facilitate efficient plasmonic coupling. To further enhance these assemblies by incorporating diffraction modes, we develop two-dimensional (2D) zigzag wrinkle structures that successfully assemble nanoparticles into plasmonic zigzag chains. Micro spectral measurements and FDTD simulations reveal that zigzag assemblies of plasmonic nanoparticle chains offer isotropic behavior and exhibit stronger plasmonic coupling compared to 1D assemblies, which could be highly beneficial for sensing applications. Due to the responsive PANI shell encapsulating the gold nanoparticles, this 2D zigzag assembly enables flexible tuning of plasmonic resonance under pH regulation.https://doi.org/10.1038/s41598-025-87504-8Template-assisted colloidal self-assemblyPlasmonic nanoparticlesZigzag wrinklesPlasmonic hotspotsSERS enhancement |
| spellingShingle | Ziwen Yu Swagato Sarkar Sezer Seçkin Ningwei Sun Anik Kumar Ghosh Sven Wießner Ziwei Zhou Andreas Fery 2D wrinkle assisted zigzag plasmonic chains for isotropic SERS enhancement Scientific Reports Template-assisted colloidal self-assembly Plasmonic nanoparticles Zigzag wrinkles Plasmonic hotspots SERS enhancement |
| title | 2D wrinkle assisted zigzag plasmonic chains for isotropic SERS enhancement |
| title_full | 2D wrinkle assisted zigzag plasmonic chains for isotropic SERS enhancement |
| title_fullStr | 2D wrinkle assisted zigzag plasmonic chains for isotropic SERS enhancement |
| title_full_unstemmed | 2D wrinkle assisted zigzag plasmonic chains for isotropic SERS enhancement |
| title_short | 2D wrinkle assisted zigzag plasmonic chains for isotropic SERS enhancement |
| title_sort | 2d wrinkle assisted zigzag plasmonic chains for isotropic sers enhancement |
| topic | Template-assisted colloidal self-assembly Plasmonic nanoparticles Zigzag wrinkles Plasmonic hotspots SERS enhancement |
| url | https://doi.org/10.1038/s41598-025-87504-8 |
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