Results 1 to 10 of about 130,342 (267)

Recent Progress in Protein Stereochemical Modifications Revealed by Ion Mobility-Mass Spectrometry [PDF]

open access: yesZhipu Xuebao, 2022
Protein stereochemical modification (SCM) is a unique type of low-abundance post-translational modification associated with many human diseases. Because it does not change the molecular weight of proteins, traditional proteomics methods are generally not
XU Xia1   +3 more
doaj   +1 more source

Ion mobility spectrometry of N-methylimidazole and possibilities of its determination

open access: yesТонкие химические технологии, 2022
Objectives. To determine the ion mobility of N-methylimidazole, establish the structure of ions corresponding to characteristic signals, and determine the detection limit of N-methylimidazole on the ion-drift detector Kerber.Methods.
D. A. Aleksandrova   +9 more
doaj   +1 more source

Simulations and experiments of the generation apparatus of the DC electric field with the space charge

open access: yesHigh Voltage, 2021
To make accurate measurements, field mills must be calibrated in a known DC electric field space charge in which the quantities can be control1ed. A simulation model of the generation apparatus of the electric field with a space charge has been built ...
Yanzhao Wang   +3 more
doaj   +1 more source

Multi-Omic Analysis to Characterize Metabolic Adaptation of the E. coli Lipidome in Response to Environmental Stress

open access: yesMetabolites, 2022
As an adaptive survival response to exogenous stress, bacteria undergo dynamic remodelling of their lipid metabolism pathways to alter the composition of their cellular membranes.
Thomas Kralj   +7 more
doaj   +1 more source

Fast Ions Transportation in Nanochannel with ATPase‐Like Structure

open access: yesSmall Structures, 2023
Ion transport plays an important role in various biological processes because of the ability of ions to move rapidly in biological ion channel‐confined spaces.
Bingxin Lu   +4 more
doaj   +1 more source

Effect of Precise Control of Drift Gas Composition for a U-shaped Mobility Analyzer [PDF]

open access: yesZhipu Xuebao, 2022
Ion mobility coupling with mass spectrometer has become an important tool for analysis of complex mixtures. Generally, the type and composition of drift gas (e.g., N2, He, CO2) in an ion mobility spectrometer will impact on the separation of different ...
TSENG Kuo-feng   +3 more
doaj   +1 more source

Plasma Metabolomic Profiling Reveals Four Possibly Disrupted Mechanisms in Systemic Sclerosis

open access: yesBiomedicines, 2022
Systemic sclerosis (SSc) is a rare systemic autoimmune disorder marked by high morbidity and increased risk of mortality. Our study aimed to analyze metabolomic profiles of plasma from SSc patients by using targeted and untargeted metabolomics approaches.
Thomas Bögl   +5 more
doaj   +1 more source

Resistance of Ion Exchange Membranes in Aqueous Mixtures of Monovalent and Divalent Ions and the Effect on Reverse Electrodialysis

open access: yesMembranes, 2023
Salinity gradient energy has gained attention in recent years as a renewable energy source, especially employing reverse electrodialysis technology (RED), which is based on the role of ion exchange membranes.
Joost Veerman   +3 more
doaj   +1 more source

Food Monitoring: Limitations of Accelerated Storage to Predict Molecular Changes in Hazelnuts (Corylus avellana L.) under Realistic Conditions Using UPLC-ESI-IM-QTOF-MS

open access: yesMetabolites, 2023
Accelerated storage is routinely used with pharmaceuticals to predict stability and degradation patterns over time. The aim of this is to assess the shelf life and quality under harsher conditions, providing crucial insights into their long-term ...
Henri Loesel   +8 more
doaj   +1 more source

Perspective on Developments in Ion Mobility Spectrometry-Mass Spectrometry Combined with Ion Spectroscopy [PDF]

open access: yesZhipu Xuebao, 2022
Combined with mass spectrometry, ion spectroscopy can obtain a spectrum of the target ion by measuring its intensity change, which is induced by laser strength and wavelength.
WANG Na1   +5 more
doaj   +1 more source

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