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Related Concept Videos

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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Nuclear Magnetic Resonance (NMR): Overview01:07

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Nuclear magnetic resonance (NMR) is a phenomenon exhibited by certain nuclei that can absorb characteristic radio frequency radiation under certain conditions. NMR has been extensively applied in molecular spectroscopy and medical diagnostic imaging. In both these applications, the molecule or subject under study is placed in a magnetic field and irradiated with radio frequency energy.
NMR spectroscopy generates a spectrum where the characteristic absorption frequencies of the sample are...
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Identification and Quantification of Deranged Metabolites in Critically Ill Patients Using NMR-Based Metabolomics
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Identification and Quantification of Deranged Metabolites in Critically Ill Patients Using NMR-Based Metabolomics

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Quantitative NMR-Based Biomedical Metabolomics: Current Status and Applications.

Alexandra A Crook1, Robert Powers1,2

  • 1Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.

Molecules (Basel, Switzerland)
|November 7, 2020
PubMed
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Quantitative Nuclear Magnetic Resonance (qNMR) offers a powerful method for metabolomics, enabling precise biomarker measurement in biological samples. Despite sensitivity limitations, its straightforward approach and non-destructive nature make it valuable for biomedical research.

Keywords:
biomarkersmetabolomicsmultidimensional NMRqNMRquantitative NMR

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Area of Science:

  • Analytical Chemistry
  • Biochemistry
  • Spectroscopy

Background:

  • Nuclear Magnetic Resonance (NMR) spectroscopy is a key quantitative tool in metabolomics.
  • Quantitative NMR (qNMR) measures analytes via signal intensity, correlating linearly with concentration.
  • Metabolomics-based NMR identifies and quantifies biomarkers in biological samples like serum, plasma, and urine.

Purpose of the Study:

  • To review advancements and limitations in current metabolite quantification techniques using qNMR.
  • To evaluate the applications of qNMR in biomedical metabolomics.
  • To highlight the unique advantages of qNMR for analyzing complex biofluids.

Main Methods:

  • Review of quantitative NMR-based metabolomics techniques.
  • Evaluation of metabolite quantification methods.
  • Analysis of qNMR applications in biomedical research.

Main Results:

  • qNMR is limited by sensitivity and dynamic range.
  • qNMR offers simple method development and minimal sample derivatization.
  • qNMR provides simultaneous qualitative and quantitative data, enabling multidimensional analysis.

Conclusions:

  • qNMR presents a unique and valuable approach for biomedical metabolomics.
  • The non-destructive nature of qNMR facilitates unambiguous metabolite assignment and quantification.
  • Despite limitations, qNMR's advantages offer a distinct landscape for biomarker discovery in complex biofluids.