Surface-Enhanced Raman Scattering in Silver-Coated Suspended-Core Fiber.
Surface-Enhanced Raman Scattering in Silver-Coated Suspended-Core Fiber.
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DOI：
10.3390/s24010160
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发表时间：
2023-12-27
期刊：
影响因子：
--
通讯作者：
Shi YW
中科院分区：
文献类型：
--
作者：
Xu Y;Zhang X;Zhu XS;Shi YW
本文采用动态化学液相沉积法制备了用于表面增强拉曼散射（SERS）传感的银涂层大芯悬空光纤（LSCF）探头。 4-巯基苯硼酸（4-MPBA）单层在 LSCF 中组装作为识别单层。利用 LSCF 适当的纤芯尺寸，使用定制的 Y 型光纤跳线连接半导体激光器、拉曼光谱仪和所提出的光纤 SERS 探头。 SERS信号在镀银空气通道中传播，可以有效降低二氧化硅核心的拉曼和荧光背景。进行实验以测量非增强和增强情况下镀银 LSCF 中 4-MPBA 的拉曼散射光谱。实验结果表明，与未增强的情况相比，表面等离子体共振使拉曼信号强度增强了6倍以上。所提出的用于SERS传感技术的LSCF为生物医学和环境科学中的光纤SERS探针提供了巨大的研究价值。 SERS 和微结构光纤的结合为 SERS 检测提供了一种潜在的方法
In this paper, the silver-coated large-core suspended-core fiber (LSCF) probe was fabricated by the dynamic chemical liquid phase deposition method for surface-enhanced Raman scattering (SERS) sensing. The 4-mercaptophenylboronic acid (4-MPBA) monolayer was assembled in the LSCF as the recognition monolayer. Taking advantage of the appropriate core size of the LSCF, a custom-made Y-type optical fiber patch cable was utilized to connect the semiconductor laser, Raman spectrometer, and the proposed fiber SERS probe. The SERS signal is propagated in the silver-coated air channels, which can effectively reduce the Raman and fluorescence background of the silica core. Experiments were performed to measure the Raman scattering spectra of the 4-MPBA in the silver-coated LSCF in a non-enhanced and enhanced case. The experiment results showed that the Raman signal strength was enhanced more than 6 times by the surface plasmon resonance compared with the non-enhanced case. The proposed LSCF for SERS sensing technology provides huge research value for the fiber SERS probes in biomedicine and environmental science. The combination of SERS and microstructured optical fibers offers a potential approach for SERS detection
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DOI：
10.1039/c4an01079e
发表时间：
2015-01-21
期刊：
The Analyst
影响因子：
--
作者：
Li M;Cushing SK;Wu N
通讯作者：
Wu N
影响因子：
29.4
作者：
Jeong, Jae Won;Arnob, Md Masud Parvez;Jung, Yeon Sik
通讯作者：
Jung, Yeon Sik
影响因子：
3.6
作者：
Afshar, Shahraam V.;Ruan, Yinlan;Monro, Tanya M.
通讯作者：
Monro, Tanya M.
影响因子：
3.6
作者：
Oo, Maung Kyaw Khaing;Han, Yun;Du, Henry
通讯作者：
Du, Henry
DOI：
10.3390/bios13010046
发表时间：
2022-12-28
期刊：
Biosensors
影响因子：
--
作者：
通讯作者：
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