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MetabolomicsAssessing the potential of sputtered gold nanolayers in mass spectrometry imaging for metabolomics applications (Brain MALDI-MSI assay)

Mass spectrometry imaging (MSI) is a molecular imaging technique that maps the distribution of molecules in biological tissues with high spatial resolution. The most widely used MSI modality is matrix-assisted laser desorption/ionization (MALDI), mainly due to the large variety of analyte classes...

2022-01-21 | MTBLS588 | MetaboLights
MetabolomicsAssessing the potentiality of sputtered gold nanolayers in mass spectrometry imaging for metabolomics applications (Liver MALDI-MSI assay)

Mass spectrometry imaging (MSI) is a molecular imaging technique that maps the distribution of molecules in biological tissues with high spatial resolution. The most widely used MSI modality is matrix-assisted laser desorption/ionization (MALDI), but some organic matrices used in classical MALDI ...

2022-01-21 | MTBLS589 | MetaboLights
MetabolomicsAutomated, Parallel Mass Spectrometry Imaging and Structural Identification of Lipids
We report a method that enables automated data-dependent acquisition of lipid tandem mass spectrometry data in parallel with a high-resolution mass spectrometry imaging experiment. The method does not increase the total image acquisition time and is combined with automatic structural assignment. Thi...
2018-05-21 | MTBLS597 | MetaboLights
MetabolomicsDetermination of Abundant Metabolite Matrix Adducts Illuminates the Dark Metabolome of MALDI-Mass Spectrometry Imaging Datasets
Spatial metabolomics using mass spectrometry imaging (MSI) is a powerful tool to map hundreds to thousands of metabolites in biological systems. One major challenge in MSI is the annotation of m/z values, which is substantially complicated by background ions introduced throughout the c...
2021-06-15 | MTBLS954 | MetaboLights
MetabolomicsUltra-High Mass Resolving Power, Mass Accuracy, and Dynamic Range MALDI Mass Spectrometry Imaging by 21-T FT-ICR MS

Detailed characterization of complex biological surfaces by matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging (MSI) requires instrumentation that is capable of high mass resolving power, mass accuracy and dynamic range. Fourier transform ion cyclotron resonance mass sp...

2022-01-28 | MTBLS3154 | MetaboLights
MetabolomicsIn plaque-mass spectrometry imaging of a bloom-forming alga during viral infection reveals a metabolic shift towards odd-chain fatty acid lipids (Imaging MS assays)

Tapping into the metabolic cross-talk between a host and its virus can reveal unique strategies employed during infection. Viral infection is a dynamic process that generates an evolving metabolic landscape. Gaining a continuous view into the infection process is highly challenging and is limited...

2018-11-29 | MTBLS769 | MetaboLights
MetabolomicsmassPix: An R package for annotation and interpretation of mass spectrometry imaging data for lipidomics
Mass spectrometry imaging (MSI) experiments result in complex multi-dimensional datasets, which require specialist data analysis tools. Here we have developed massPix - an R package for analysing and interpreting data from MSI of lipids in tissue. MassPix is an open-source tool for the analysis and ...
2017-08-31 | MTBLS487 | MetaboLights
MetabolomicsMass spectrometry imaging of phosphatidylcholine metabolism in lungs administered with therapeutic surfactants and isotopic tracers

Mass spectrometry imaging (MSI) visualises molecular distributions throughout tissues but is blind to dynamic metabolic processes. Here, MSI with high mass resolution together with multiple stable isotope labelling provided spatial analyses of phosphatidylcholine (PC) metabolism in mouse lungs. D...

2020-10-30 | MTBLS2075 | MetaboLights
MetabolomicsHidden molecular clues in marine sediments revealed by untargeted mass spectrometry imaging

Mass spectrometry imaging (MSI) in sedimentary archives can produce records of molecular proxies at μm-scale resolution. For example, in annually varved sediments of the Santa Barbara Basin, such a fine resolution allows deciphering sub-annual distributions of archaeal tetraether lipids, haptophy...

2022-08-15 | MTBLS4609 | MetaboLights
MetabolomicsMetabolic phenotyping of ex-vivo breast samples by DESI mass spectrometry imaging
This study involves the analysis of surgically resected samples from patients undergoing breast surgery. The samples published here have been used as part of the publication by [1], and all experimental details can be found within. Desorption electrospray ionisation mass spectrometry imaging (DESI M...
2016-04-28 | MTBLS273 | MetaboLights
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