Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Solid ionic matrixes for direct tissue analysis and MALDI imaging.

R Lemaire1, J C Tabet, P Ducoroy

  • 1Laboratoire de Neuroimmunologie des Annélides, Equipe imagerie MALDI, UMR-CNRS 8017, Bâtiment SN3, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq, France.

Analytical Chemistry
|February 2, 2006
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Extension of the intravitreal injection interval after switching to faricimab in patients with exudative AMD: The multicenter FAR WEST study.

Journal francais d'ophtalmologie·2026
Same author

Unraveling the protein kinase C/NDRG1 signaling network in breast cancer.

Cell & bioscience·2024
Same author

Artificial intelligence solution to accelerate the acquisition of MRI images: Impact on the therapeutic care in oncology in radiology and radiotherapy departments.

Cancer radiotherapie : journal de la Societe francaise de radiotherapie oncologique·2024
Same author

Proteomic characterisation of leech microglia extracellular vesicles (EVs): comparison between differential ultracentrifugation and Optiprep™ density gradient isolation.

Journal of extracellular vesicles·2019
Same author

Challenges faced by young otolaryngologists-head & neck surgeons around the world.

European annals of otorhinolaryngology, head and neck diseases·2018
Same author

Global Professional Behaviours and Networking Preferences of Young Otolaryngologists - An International Survey.

European annals of otorhinolaryngology, head and neck diseases·2018
Same journal

Machine Learning-Assisted Label-Free SERS Decoding of Mitochondrial Molecular Dynamics in Ovarian Granulosa Cells during Aging.

Analytical chemistry·2026
Same journal

Revealing the Regulatory Interplay of NHE1 mRNA and Na<sup>+</sup> in Cancer Cells Using a DNA Nanosensor.

Analytical chemistry·2026
Same journal

Towards Cellular Resolution of Tryptic Peptides in Tissue Sections by MALDI MS Imaging: A Focus on Enzyme Application and Reproducibility.

Analytical chemistry·2026
Same journal

Bioinspired Bilayer Hydrogel Colorimetric Sensor Array for Low-Temperature Food Freshness Analysis.

Analytical chemistry·2026
Same journal

Quartz Crystal Microbalance-Based Point-of-Care Testing Systems: Principles, Device Design, and Applications.

Analytical chemistry·2026
Same journal

Heterojunction Gate-Empowered OPECT Aptasensing: A Valid Protocol for Realizing High Current Gain at Low Electron Donor Dependency.

Analytical chemistry·2026
See all related articles

New ionic liquid matrices improve direct tissue analysis using matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). These matrices enhance spectral quality and imaging capabilities for peptide profiling in tissues.

Area of Science:

  • Mass Spectrometry
  • Biomolecular Analysis
  • Tissue Imaging

Background:

  • Direct tissue analysis by MALDI-MS offers cellular localization of biomolecules without extraction.
  • Existing direct tissue analysis methods suffer from reduced spectral quality due to tissue variations.

Purpose of the Study:

  • To develop improved matrix mixtures for direct tissue analysis of peptides using MALDI-MS.
  • To evaluate the performance of novel ionic liquid matrices compared to conventional ones.

Main Methods:

  • Development and application of ionic liquid matrices: alpha-cyano-4-hydroxycinnamic acid (CHCA)/2-amino-4-methyl-5-nitropyridine and CHCA/N,N-dimethylaniline (CHCA/DANI).
  • Comparative analysis of spectral quality, crystallization properties, stability, and laser resistance.
  • Application in MALDI imaging on a MALDI LIFT-TOF with a 50-Hz laser frequency.

Related Experiment Videos

Main Results:

  • CHCA/aniline matrix demonstrated superior spectral quality (resolution, sensitivity, intensity, noise, detected compounds, contaminant tolerance).
  • Enhanced crystallization properties (coverage, homogeneity, crystal size, time) and improved vacuum stability and laser resistance.
  • Achieved high-quality MALDI imaging in both polarities and reflector mode from a single tissue section.

Conclusions:

  • Novel ionic liquid matrices significantly enhance direct peptide analysis and imaging in tissues.
  • These advancements offer new possibilities for peptide profiling, compound characterization, and high-quality MALDI-MS imaging.