Direct Laser Writing of SERS Hollow Fibers
We report the direct laser writing (DLW) of surface-enhanced Raman scattering (SERS) structures on the inner wall of a hollow fiber. Colloidal gold–silver alloy nanoparticles (Au–Ag ANPs) are firstly coated onto the inner wall of a hollow fiber. A green laser beam is focused through the outer surfac...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/16/2843 |
| _version_ | 1797408612096671744 |
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| author | Jiajun Li Yunyun Mu Miao Liu Xinping Zhang |
| author_facet | Jiajun Li Yunyun Mu Miao Liu Xinping Zhang |
| author_sort | Jiajun Li |
| collection | DOAJ |
| description | We report the direct laser writing (DLW) of surface-enhanced Raman scattering (SERS) structures on the inner wall of a hollow fiber. Colloidal gold–silver alloy nanoparticles (Au–Ag ANPs) are firstly coated onto the inner wall of a hollow fiber. A green laser beam is focused through the outer surface of the hollow fiber to interact with colloidal Au–Ag ANPs so that they become melted and aggregated on the surface of the inner wall with strong adhesion. Such randomly distributed plasmonic nanostructures with high density and small gaps favor the SERS detection of low-concentration molecules in liquids flowing through the hollow fiber. Such a SERS device also supplies a three-dimensional microcavity for the interaction between excitation laser and the target molecules. The DLW system consists mainly of the flexible connection between the motor shaft and the hollow fiber, the program-controlled translation of the hollow fiber along its symmetric axis and rotation about the axis, as well as the mechanical design and the computer control system. This DLW technique enables high production, high stability, high reproducibility, high precision, and a high-flexibility fabrication of the hollow fiber SERS device. The resultant microcavity SERS scheme enables the high-sensitivity detection of R6G molecules in ethanol with a concentration of 10<sup>−7</sup> mol/L. |
| first_indexed | 2024-03-09T04:01:58Z |
| format | Article |
| id | doaj.art-e280e217b4ff4980a7e2f04afe8b6c1c |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T04:01:58Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-e280e217b4ff4980a7e2f04afe8b6c1c2023-12-03T14:13:23ZengMDPI AGNanomaterials2079-49912022-08-011216284310.3390/nano12162843Direct Laser Writing of SERS Hollow FibersJiajun Li0Yunyun Mu1Miao Liu2Xinping Zhang3Institute of Information Photonics Technology, Beijing University of Technology, Beijing 100124, ChinaInstitute of Information Photonics Technology, Beijing University of Technology, Beijing 100124, ChinaInstitute of Information Photonics Technology, Beijing University of Technology, Beijing 100124, ChinaInstitute of Information Photonics Technology, Beijing University of Technology, Beijing 100124, ChinaWe report the direct laser writing (DLW) of surface-enhanced Raman scattering (SERS) structures on the inner wall of a hollow fiber. Colloidal gold–silver alloy nanoparticles (Au–Ag ANPs) are firstly coated onto the inner wall of a hollow fiber. A green laser beam is focused through the outer surface of the hollow fiber to interact with colloidal Au–Ag ANPs so that they become melted and aggregated on the surface of the inner wall with strong adhesion. Such randomly distributed plasmonic nanostructures with high density and small gaps favor the SERS detection of low-concentration molecules in liquids flowing through the hollow fiber. Such a SERS device also supplies a three-dimensional microcavity for the interaction between excitation laser and the target molecules. The DLW system consists mainly of the flexible connection between the motor shaft and the hollow fiber, the program-controlled translation of the hollow fiber along its symmetric axis and rotation about the axis, as well as the mechanical design and the computer control system. This DLW technique enables high production, high stability, high reproducibility, high precision, and a high-flexibility fabrication of the hollow fiber SERS device. The resultant microcavity SERS scheme enables the high-sensitivity detection of R6G molecules in ethanol with a concentration of 10<sup>−7</sup> mol/L.https://www.mdpi.com/2079-4991/12/16/2843surface-enhanced Raman scatteringdirect laser writinginner wallhollow fibersensors for flowing liquids |
| spellingShingle | Jiajun Li Yunyun Mu Miao Liu Xinping Zhang Direct Laser Writing of SERS Hollow Fibers Nanomaterials surface-enhanced Raman scattering direct laser writing inner wall hollow fiber sensors for flowing liquids |
| title | Direct Laser Writing of SERS Hollow Fibers |
| title_full | Direct Laser Writing of SERS Hollow Fibers |
| title_fullStr | Direct Laser Writing of SERS Hollow Fibers |
| title_full_unstemmed | Direct Laser Writing of SERS Hollow Fibers |
| title_short | Direct Laser Writing of SERS Hollow Fibers |
| title_sort | direct laser writing of sers hollow fibers |
| topic | surface-enhanced Raman scattering direct laser writing inner wall hollow fiber sensors for flowing liquids |
| url | https://www.mdpi.com/2079-4991/12/16/2843 |
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