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相关概念视频

Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

1.3K
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...
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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...
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MALDI-TOF Mass Spectrometry01:19

MALDI-TOF Mass Spectrometry

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Mass spectrometry is a powerful characterization technique that can identify and separate a wide variety of compounds ranging from chemical to biological entities, based on their mass-to-charge ratio (m/z). The instruments that allow this detection, known as mass spectrometers, have three components: an ion source, a mass analyzer, and a detector. These spectrometers differ based on the nature of their ion source and analyzers.Matrix-assisted laser desorption ionization (MALDI) is a commonly...
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Applications Of NMR In Biology01:25

Applications Of NMR In Biology

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Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics  for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.
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相关实验视频

Updated: Jan 9, 2026

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy
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特刊"拉曼光谱和机器学习在人类疾病中"

Ivan Bratchenko1

  • 1Scientific and Educational Center "Fundamental and Applied Photonics. Nanophotonics", Immanuel Kant Baltic Federal University, Kaliningrad 236041, Russia.

International journal of molecular sciences
|December 11, 2025
PubMed
概括
此摘要是机器生成的。

现代光学技术使组织和生物流体的先进分析成为可能. 这些方法为研究和诊断的生物样本提供了新的见解.

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科学领域:

  • 生物医学光学 生物医学光学
  • 分析化学是一种分析化学.
  • 分子诊断学 分子诊断学

背景情况:

  • 光学技术对于分析生物样本越来越重要.
  • 仪器仪表的进步为组织和生物流体分析提供了新的可能性.

研究的目的:

  • 审查用于组织和生物流体分析的现代光学技术.
  • 突出这些技术在生物医学研究和临床诊断中的潜力.

主要方法:

  • 对当代光学方法的文献综述.
  • 讨论诸如光谱,显微镜和成像等技术.
  • 分析它们在生物样本表征中的应用.

主要成果:

  • 光学技术为分子和结构分析提供了高灵敏度和特异性.
  • 讨论的方法提供了非侵入性或最小侵入性分析选项.
  • 光学方法与其他分析平台的整合增强了诊断能力.

结论:

  • 现代光学技术代表了理解生物系统的强大工具包.
  • 这些方法对于推进疾病诊断和个性化医学的发展至关重要.
  • 持续的发展有望在生物医学分析领域取得进一步的突破.