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Related Concept Videos

Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

455
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...
455
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

450
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...
450
Applications of IR Spectroscopy: Overview01:11

Applications of IR Spectroscopy: Overview

785
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,...
785
MALDI-TOF Mass Spectrometry01:19

MALDI-TOF Mass Spectrometry

4.9K
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...
4.9K
Applications Of NMR In Biology01:25

Applications Of NMR In Biology

3.7K
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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Related Experiment Video

Updated: Jul 19, 2025

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy
15:04

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy

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Practices, Potential, and Perspectives for Detecting Predisease Using Raman Spectroscopy.

Yusuke Oshima1,2,3, Takayuki Haruki2,4, Keiichi Koizumi2,5

  • 1Faculty of Engineering, University of Toyama, Toyama 930-8555, Japan.

International Journal of Molecular Sciences
|August 12, 2023
PubMed
Summary
This summary is machine-generated.

Raman spectroscopy offers real-time, non-destructive molecular analysis for early disease detection. This technique provides unique molecular fingerprints, crucial for identifying predisease states and enabling timely intervention.

Keywords:
DNBRaman spectroscopyclinical applicationdynamical network biomarkermolecular fingerprintprediseasestate transition

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Non-contact, Label-free Monitoring of Cells and Extracellular Matrix using Raman Spectroscopy
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Area of Science:

  • Biomedical Optics
  • Molecular Spectroscopy
  • Clinical Diagnostics

Background:

  • Raman spectroscopy analyzes molecular structure and composition via scattered light.
  • It provides non-destructive, real-time measurements of cells and tissues.
  • Spectral data offer molecular fingerprints for disease states.

Purpose of the Study:

  • To review the practical and clinical applications of Raman spectroscopy.
  • To highlight its role in the early detection of human diseases.
  • To explore its potential in identifying predisease transition states.

Main Methods:

  • Analysis of molecular composition through scattered light.
  • Real-time, non-destructive measurement of biological samples.
  • Interpretation of spectral data as molecular fingerprints.

Main Results:

  • Raman spectroscopy demonstrates significant potential for clinical applications.
  • It can provide insights into molecular composition linked to disease.
  • The technique is valuable for early disease detection and predisease identification.

Conclusions:

  • Raman spectroscopy is a promising tool for clinical diagnostics.
  • Its ability to detect molecular changes aids in early disease identification.
  • Further research can leverage Raman spectroscopy for predisease state monitoring.