Results 51 to 60 of about 157,015 (313)

Structural and Quantitative Analysis of Polyfluoroalkyl Substances (PFASs) and Para-Phenylenediamines (PPDs) by Direct Analysis in Real Time Ion Mobility Mass Spectrometry (DART-IM-MS)

Molecules
Polyfluoroalkyl substances (PFASs) and para-phenylenediamines (PPDs) are emerging classes of anthropogenic contaminants that are environmentally persistent (most often found in ground and surface water sources), bioaccumulative, and harmful to human ...
Calum Bochenek, Jack Edwards, Zhibo Liu, Chrys Wesdemiotis   +3 more
doaj   +1 more source

Surface-Induced Dissociation of Protein Complexes Selected by Trapped Ion Mobility Spectrometry

, 2020
Native mass spectrometry, particularly in conjunction with gas-phase ion mobility spectrometry measurements, has proven useful as a structural biology tool for evaluating the stoichiometry, conformation, and topology of protein complexes.
Vicki, Wysocki, Erin, Panczyk, Arpad, Somogyi, Mark. E., Ridgeway, Dalton, Snyder, Melvin A., Park   +5 more
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Insights of Hysteresis Behaviors in Perovskite Solar Cells from a Mixed Drift-Diffusion Model Coupled with Recombination

Photonics, 2020
Hysteresis in perovskite solar cells is a notorious issue limiting its development in stability, reproducibility and efficiency. Ions’ migration coupled with charges’ recombination are indispensable factors to generate the hysteretic curves on the basis ...
Chongqiu Yang, Xiaobiao Shan, Tao Xie
doaj   +1 more source

Effects of nanometer alumina and humic acid on the retention and transport of hexavalent chromium in porous media

Ecotoxicology and Environmental Safety, 2021
Column experiments were conducted to investigate the effects of ion type, ion strength, humic acid (HA), and nanometer alumina (NA) particles on the transport of hexavalent chromium (HC) in saturated porous media.
Ming Wu, Huihui Cao, Guoping Lu, Bill X. Hu, Zhou Cheng, Cehui Mo, Jianfeng Wu, Jichun Wu   +7 more
doaj   +1 more source

Ion mobility mass spectrometry of isomeric RNA biomarkers [PDF]

, 2018
Ion mobility spectrometry is an analytical technique that separates gaseous ions depending on their mobility in a gas filled cell under the influence of an electric field.
Mwangi, Joseph Njoroge, NC DOCKS at The University of North Carolina at Greensboro   +1 more
core  

Recommendations for Reporting Ion Mobility Mass Spectrometry Measurements

, 2018
Here we present a guide on ion mobility mass spectrometry experiments, which covers both linear and nonlinear methods: what is measured, how the measurements are done, and how to report the results, including the uncertainties on mobility and collision ...
Iain, D. G. Campuzano, Carlos, Afonso, Frédéric, Rosu, Frank, Sobott, Justin L. P., Benesch, Michael, Groessl, Christopher J., Hogan, Jr., Ruwan T., Kurulugama, Johann, Far, Brian H., Clowers, Hugh I., Kim, Kevin, Giles, Tim J., Causon, Perdita E., Barran, Kevin, Pagel, Stephen J., Valentine, Konstantinos, Thalassinos, Michael T., Bowers, Colin, Creaser, Keith, Richardson, Valerie, Gabelica, Thomas, Wyttenbach, Stephan, Hann, Alexandre A., Shvartsburg, Jody C., May, Francisco, Fernandez-Lima, John A., McLean, Christian, Bleiholder, John C., Fjeldsted, J. Larry, Campbell, Mark. E., Ridgeway, Edwin, De Pauw, Aivett, Bilbao, Matthew F., Bush   +33 more
core   +1 more source

A study of phospholipids by ion mobility TOFMS [PDF]

Journal of the American Society for Mass Spectrometry, 2008
Combining matrix-assisted laser desorption/ionization (MALDI) mass spectrometry with ion mobility (IM) results in the fast sorting of biomolecules in complex mixtures along trend lines. In this two-dimensional (2D) analysis of biological families, lipids, peptides, and nucleotides are separated from each other by differences in their ion mobility drift
Jackson, Shelley N., Ugarov, Michael, Post, Jeremy D., Egan, Thomas, Langlais, Denis, Schultz, J. Albert, Woods, Amina S.   +6 more
openaire   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Mobility of the Singly-Charged Lanthanide and Actinide Cations: Trends and Perspectives

Frontiers in Chemistry, 2020
The current status of gaseous transport studies of the singly-charged lanthanide and actinide ions is reviewed in light of potential applications to superheavy ions. The measurements and calculations for the mobility of lanthanide ions in He and Ar agree
Giorgio Visentin, Mustapha Laatiaoui, Mustapha Laatiaoui, Larry A. Viehland, Alexei A. Buchachenko, Alexei A. Buchachenko   +5 more
doaj   +1 more source