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Related Concept Videos

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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Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
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Matrix-assisted laser desorption ionization (MALDI) is a powerful analytical technique used in mass spectrometry. It enables the identification and characterization of various biomolecules, including proteins, peptides, nucleic acids, and carbohydrates. MALDI is an ionization technique, widely employed in biological and medical research, as well as in fields like pharmacology and biochemistry.The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix...
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Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...
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Low Molecular Weight Protein Enrichment on Mesoporous Silica Thin Films for Biomarker Discovery
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Biomarker Characterization by MALDI-TOF/MS.

Yi-Tzu Cho1, Hung Su2, Wen-Jeng Wu3

  • 1Department of Cosmetic Applications and Management, Yuh-Ing Junior College of Health Care & Management, Kaohsiung, Taiwan.

Advances in Clinical Chemistry
|May 3, 2015
PubMed
Summary
This summary is machine-generated.

Matrix-assisted laser desorption ionization/time-of-flight mass spectrometry (MALDI-TOF/MS) rapidly detects trace biomolecules for disease biomarker characterization. This review covers clinical applications and sample preparation methods for improved detection efficiency.

Keywords:
BiofluidsBiomarkersClinical diagnosisImmunoaffinityMass spectrometryMatrix-assisted laser desorption ionization/time-of-flight mass spectrometryMultivariate statisticsNanomaterial

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Area of Science:

  • Clinical Chemistry
  • Analytical Chemistry
  • Biochemistry

Background:

  • Mass spectrometry (MS) techniques are vital in clinical diagnostics.
  • Matrix-assisted laser desorption ionization/time-of-flight mass spectrometry (MALDI-TOF/MS) excels at detecting trace amounts of large biomolecules.

Purpose of the Study:

  • To review clinical applications of MS, particularly MALDI-TOF/MS, for disease biomarker detection.
  • To discuss methods for identifying microorganisms, DNA, tissues, and biofluids.
  • To explore approaches for detecting peptides, proteins, and lipids as biomarkers.

Main Methods:

  • Discussion of various mass spectrometric techniques: GC-MS, LC-MS, AI-MS, and MALDI-TOF/MS.
  • Focus on MALDI-TOF/MS for its speed and sensitivity in biomarker analysis.
  • Review of sample pretreatment methods to enhance biomarker detection.

Main Results:

  • MALDI-TOF/MS is ideal for rapid characterization of disease biomarkers in biological samples.
  • Clinical applications include identification of microorganisms, DNA, tissues, and biofluids.
  • Effective detection of peptides, proteins, and lipids as disease biomarkers is achievable.

Conclusions:

  • MALDI-TOF/MS is a powerful tool for clinical diagnosis and disease biomarker discovery.
  • Optimized sample pretreatment significantly improves the efficiency of biomarker detection.
  • MS techniques offer broad applications in clinical microbiology, molecular diagnostics, and pathology.