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相关概念视频

Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

294
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...
294
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

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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...
282
Applications of IR Spectroscopy: Overview01:11

Applications of IR Spectroscopy: Overview

459
The non-destructive nature and ability to provide valuable chemical information make IR spectroscopy a versatile technique with broad applications in various scientific and industrial fields. IR spectroscopy is commonly used to identify and characterize organic and inorganic compounds. It provides information about the functional groups present in a molecule and the bonding between atoms. This helps in the structural elucidation of compounds during organic synthesis, pharmaceutical research,...
459

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相关实验视频

Updated: May 26, 2025

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates
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用于生物医学应用的表面增强拉曼光谱:最近的进展和未来的挑战

Linley Li Lin1, Ramon Alvarez-Puebla2,3, Luis M Liz-Marzán4,5,6,7

  • 1Sixth People's Hospital, School of Medicine & School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, P. R. China.

ACS applied materials & interfaces
|February 24, 2025
PubMed
概括
此摘要是机器生成的。

表面增强拉曼光谱 (SERS) 是生物医学分析的强大工具. 本综述涵盖了SERS在基板,纳米标签以及用于诊断和深层组织成像的应用方面的进展.

关键词:
拉曼散射是一种散射.一些SER一些SER.代谢检测检测的代谢检测纳米医药是一种纳米医药.塑制剂的使用方法传输 拉曼光谱法 拉曼光谱法

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科学领域:

  • 生物医学光谱学 生物医学光谱学
  • 纳米技术纳米技术
  • 分析化学 分析化学

背景情况:

  • 表面增强拉曼光谱 (SERS) 由于其高灵敏度和分子特异性,已成为一种重要的生物医学工具.
  • 2024年是SERS发现50周年,突出其重大演变.

研究的目的:

  • 审查生物医学应用SERS的最新进展和挑战.
  • 讨论SERS在诊断,单细胞分析和体内成像中的潜力.

主要方法:

  • 审查SERS基板 (合体,固体,水凝结构) 的关键发展.
  • 探索SERS纳米标签 (内部空隙,NIR-II响应,生物仿真涂层) 的创新.
  • 讨论新兴技术 (光学笔,等离子体纳米孔,可穿戴传感器) 和光谱分析 (深度学习).

主要成果:

  • 突出了SERS基板的进展,改善了表面化学和热点设计.
  • 引入新的SERS纳米标签,为生物检测提供增强功能.
  • 展示扩展SERS功能,用于单细胞/分子分析和改进数据量化.

结论:

  • 在核酸检测,蛋白质/代谢物分析和单细胞监测方面,SERS显示出显著的潜力.
  • 新兴应用包括液体活检,代谢表型化和细胞外囊泡诊断.
  • 临床翻译需要解决体内传感和商业化方面的挑战.