Results 51 to 60 of about 277,596 (351)

Right in two: capabilities of ion mobility spectrometry for untargeted metabolomics

open access: yesFrontiers in Molecular Biosciences, 2023
This mini review focuses on the opportunities provided by current and emerging separation techniques for mass spectrometry metabolomics. The purpose of separation technologies in metabolomics is primarily to reduce complexity of the heterogeneous systems
Tessa Moses, Karl Burgess
doaj   +1 more source

A machine learning approach to explore the spectra intensity pattern of peptides using tandem mass spectrometry data [PDF]

open access: yes, 2008
Background: A better understanding of the mechanisms involved in gas-phase fragmentation of peptides is essential for the development of more reliable algorithms for high-throughput protein identification using mass spectrometry (MS).
Bowler, Lucas D.   +2 more
core   +5 more sources

Investigation of Dendriplexes by Ion Mobility-Mass Spectrometry

open access: yesMolecules, 2014
Highly branched polyamidoamine (PAMAM) dendrimers presenting biological activities have been envisaged as non-viral gene delivery vectors. They are known to associate with nucleic acid (DNA) in non-covalent complexes via electrostatic interactions ...
Emma-Dune Leriche   +6 more
doaj   +1 more source

an ion mobility-mass spectrometry study [PDF]

open access: yes, 2018
Coordinative halogen bonds have recently gained interest for the assembly of supramolecular capsules. Ion mobility-mass spectrometry and theoretical calculations now reveal the well-defined gas-phase structures of dimeric and hexameric [N⋯I+⋯N] halogen ...
Hoffmann, Waldemar   +6 more
core   +1 more source

Rapid Characterization of Emerging Per- and Polyfluoroalkyl Substances in Aqueous Film-Forming Foams Using Ion Mobility Spectrometry-Mass Spectrometry.

open access: yesEnvironmental Science and Technology, 2020
Aqueous film-forming foams (AFFF) are mixtures formulated with numerous hydrocarbon- and fluoro-containing surfactants. AFFF use leads to environmental releases of unknown per- and polyfluoroalkyl substances (PFAS).
Yu-Syuan Luo   +7 more
semanticscholar   +1 more source

Ion Mobility Spectrometry in Food Analysis: Principles, Current Applications and Future Trends

open access: yesMolecules, 2019
In the last decade, ion mobility spectrometry (IMS) has reemerged as an analytical separation technique, especially due to the commercialization of ion mobility mass spectrometers. Its applicability has been extended beyond classical applications such as
M. Hernández-Mesa   +5 more
semanticscholar   +1 more source

Ion mobility mass spectrometry of saponin ions [PDF]

open access: yesRapid Communications in Mass Spectrometry, 2018
Rationale Saponins are natural compounds presenting a high structural diversity whose structural characterization remains extremely challenging. Ideally, saponin structures are best established using nuclear magnetic resonance experiments conducted on isolated molecules.
Corentin Decroo   +8 more
openaire   +2 more sources

Measurement of acetates in air using differential ion mobility spectrometer

open access: yesE3S Web of Conferences, 2017
Volatile organic compounds are one of the most important group of air pollutants. Potential health and environmental problems resulting from their emission prompted the requirement for monitoring these species. It motivates development of new measurement
Szczurek Andrzej   +3 more
doaj   +1 more source

Evaluating Software Tools for Lipid Identification from Ion Mobility Spectrometry–Mass Spectrometry Lipidomics Data

open access: yesMolecules, 2023
The unambiguous identification of lipids is a critical component of lipidomics studies and greatly impacts the interpretation and significance of analyses as well as the ultimate biological understandings derived from measurements.
Dylan H. Ross   +5 more
doaj   +1 more source

Electronic Spectroscopy of Isolated DNA Polyanions [PDF]

open access: yes, 2018
In solution, UV-vis spectroscopy is often used to investigate structural changes in biomolecules (i.e., nucleic acids), owing to changes in the environment of their chromophores (i.e., the nucleobases).
Daly, Steven   +3 more
core   +3 more sources

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