Microcavity Fiber SERS Probe Coated With Ag Nanoparticles For Detecting Antibiotic in Milk
| Autor: | Wa Jin, Weihong Bi, Guangwei Fu, Shuangyu Ma, Xinghu Fu, Jiaxuan Li, Yan-hua Dong, Zhenxing Wang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Optical fiber
Materials science 02 engineering and technology 01 natural sciences ag nanoparticles law.invention Rhodamine 6G chemistry.chemical_compound symbols.namesake law antibiotic Applied optics. Photonics Fiber Electrical and Electronic Engineering Fiber probe Detection limit Reproducibility Multi-mode optical fiber business.industry 010401 analytical chemistry surface enhanced raman scattering QC350-467 Optics. Light 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics 0104 chemical sciences TA1501-1820 chemistry sol self-assembly symbols Optoelectronics Self-assembly 0210 nano-technology business Raman spectroscopy |
| Zdroj: | IEEE Photonics Journal, Vol 13, Iss 2, Pp 1-13 (2021) |
| ISSN: | 1943-0655 |
| Popis: | In this paper, an Ag nanoparticles (AgNPs) modified multimode fiber (MMF) SERS probe prepared based on sol self-assembly method is proposed and fabricated. Different fiber SERS probes (AgNPs-MMF-x, x is the self-assembly time) are obtained by adjusting the self-assembly time. Using rhodamine 6G (R6G) solution as the probe molecule, the far-end performances of the prepared fiber SERS probe are studied, and the AgNPs-MMF-30 probe with obvious advantages in SERS performance is obtained. The limit of detection (LOD) for R6G is as low as 10−9 M, demonstrating the high sensitivity of AgNPs-MMF-30 probe. The enhancement factor (EF) of AgNPs-MMF-30 probe to 10−7 M R6G is about 1.36 × 108. In addition, the AgNPs-MMF-30 probe has an outstanding reproducibility across the entire area with the maximum value of relative standard deviation (RSD) of less than 10.94%. The AgNPs-MMF-30 probe exhibit a long-term stability regarding Raman enhancement of up to 35 days. Importantly, the high-performance AgNPs-MMF-30 probe is further applied as a highly sensitive SERS platform for the trace detection of antibiotic in milk. The fiber SERS probe has the characteristics of fast, effective, remote real-time detection and so on, so it has great potential application in biochemical sensing and food security. |
| Databáze: | OpenAIRE |
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