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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
MetabolomicsImproving global feature detectabilities through scan range splitting for untargeted metabolomics by high-performance liquid chromatography-Orbitrap mass spectrometry
Untargeted metabolomics aims at obtaining quantitative information on the highest possible number of low-molecular biomolecules present in a biological sample. Rather small changes in mass spectrometric spectrum acquisition parameters may have a significant influence on the detectabilities of metabo...
2016-06-09 | MTBLS233 | MetaboLights
MetabolomicsSAR11 Cells Rely on Enzyme Multifunctionality to Transport and Metabolize a Range of Polyamine Compounds
In the ocean surface layer and cell culture, the polyamine transport protein PotD of SAR11 bacteria is often one of the most abundant proteins detected. Polyamines are organic cations at seawater pH produced by all living organisms and are thought to be an important component of dissolved organic ma...
2021-09-09 | MTBLS3146 | MetaboLights
MetabolomicsRapid Evaporative Ionisation Mass Spectrometry (REIMS) Provides Accurate Direct from Culture Species Identification within the Genus Candida
Members of the genus Candida, such as C. albicans and C. parapsilosis, are important human pathogens. Other members of this genus, previously believed to carry minimal disease risk, are increasingly recognised as important human pathogens, particularly because of variations in susceptibilities to wi...
2017-11-01 | MTBLS383 | MetaboLights
MetabolomicsComprehensive High-Resolution Multiple-Reaction Monitoring Mass Spectrometry for Targeted Eicosanoid Assays
Eicosanoids comprise a class of bioactive lipids derived from a unique group of essential fatty acids that mediate a variety of important physiological functions. Owing to the structural diversity of these lipids, their analysis in biological samples is often a major challenge. Advancements in mass ...
2018-06-26 | MTBLS641 | MetaboLights
MetabolomicsAnalysis of colorectal adenocarcinoma tissue samples by DESI mass spectrometry imaging
Ex vivo colorectal adenocarcinoma samples were analysed by desorption electrospray ionisation using an Orbitrap mass spectrometer. The samples were analysed in negative mode over the m/z range 600-1000. Some of the samples presented in this dataset were analysed as part of [1]. The study makes avail...
2016-04-28 | MTBLS289 | 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
MetabolomicsComputational mass spectrometry accelerates C=C position-resolved untargeted lipidomics using oxygen attachment dissociation
Mass spectrometry-based untargeted lipidomics has revealed the lipidome atlas of living organisms at the molecular species level. Despite the double bond (C=C) position being a crucial factor for enzyme preference, cellular membrane milieu, and biological activity, the C=C defined structures have no...
2022-11-09 | MTBLS5861 | MetaboLights
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
MetabolomicsRapid identification of species, sex and maturity by mass spectrometric analysis of animal faeces

BACKGROUND: We describe a new approach to the recovery of information from faecal samples, based on the analysis of the molecular signature generated by rapid evaporative ionisation mass spectrometry (REIMS).

RESULTS: Faecal pellets from five different r...

2022-02-03 | MTBLS1095 | MetaboLights
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