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相关概念视频

Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

468
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
468
Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

474
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
474

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相关实验视频

Updated: Jul 26, 2025

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates
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表面增强的拉曼散射基板的材料设计,开发和趋势.

Yue Ying1,2, Zhiyong Tang1,2, Yaling Liu1,2

  • 1CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China. liuyl@nanoctr.cn.

Nanoscale
|June 19, 2023
PubMed
概括

表面增强拉曼散射 (SERS) 依赖于SERS基板进行化学指纹. 本综述详细介绍了SERS活性纳米材料及其增强机制的进展.

科学领域:

  • 频谱学是一种光谱学.
  • 材料科学 材料科学 材料科学
  • 纳米技术 纳米技术

背景情况:

  • 表面增强拉曼散射 (SERS) 提供了非侵入性的化学指纹.
  • SERS信号质量高度依赖于基质的特性.
  • 开发新的高性能SERS基板对于SERS技术的进步至关重要.

研究的目的:

  • 审查SERS活性纳米材料的进展情况.
  • 探索SERS基底的增强机制.
  • 提供关于SERS材料开发的未来趋势和挑战的见解.

主要方法:

  • 文献综述侧重于SERS活性纳米材料.
  • 分析各种纳米材料的设计原理和功能.
  • 讨论影响SERS信号增强的因素.

主要成果:

  • 在等离子金属基板上开发的SERS活性纳米材料的全面概述.
  • 详细检查设计策略和性能特征.
  • 强调关键的增强机制和影响因素.

结论:

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Author Spotlight: Advancements and Applications in Nanoparticle Synthesis Through Laser Ablation in Liquids
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  • 有SERS活性的纳米材料是SERS技术的基础.
  • 了解设计原则和增强机制是取得进展的关键.
  • 未来的研究应该专注于克服SERS更广泛应用的挑战.