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Bio-ingénierie

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等离子体纳米颗粒的光学捕获用于原位表面增强拉曼光谱表征

Journal JoVE
Bio-ingénierie

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Journal JoVE Bio-ingénierie

Optical Trapping of Plasmonic Nanoparticles for In Situ Surface-Enhanced Raman Spectroscopy Characterizations

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等离子体纳米颗粒的光学捕获用于原位表面增强拉曼光谱表征

DOI:

10.3791/63862-v

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06:19 min

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June 23, 2022

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Xin Dai², Wenting Qiu², Jinqing Huang²

¹HKUST-Shenzhen Research Institute, ²Department of Chemistry,The Hong Kong University of Science and Technology

Chapitres

00:04Introduction
01:00Optical Setup
01:47Preparation of Sample Chamber and Generation of AgNp Assembly for SERS Measurement
04:13Results: SERS Spectra of the Analyte Molecules Enhanced by the Plasmonic AgNp Assembly
05:32Conclusion

Summary

Traduction automatique

本协议描述了一种集成光学捕获和表面增强拉曼光谱（SERS）以操纵等离子体纳米颗粒以进行灵敏分子检测的便捷方法。在没有聚集剂的情况下，捕获激光器组装等离子体纳米颗粒，以增强目标分析物的SERS信号，以进行原位光谱测量。

Tags

Optical Trapping Plasmonic Nanoparticles Surface-enhanced Raman Spectroscopy SERS-active Nanoparticle Assembly Analyte Detection Biomarker Detection Microfluidic System 532-nanometer Laser Liquid-nitrogen-cooled Charge-coupled Device Camera Silver Nanoparticles DSNB Solution Raman Excitation Source Laser

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