Results 291 to 300 of about 224,671 (353)

Internal Ubiquitin Electrophiles for Covalent Trapping and Inhibition of Deubiquitinases

ChemBioChem, Accepted Article.
The ubiquitin (Ub) system governs vital cellular processes in eukaryotic biology through an intricate network of Ub‐protein interactions. While semisynthetic C‐terminal Ub electrophiles (UbEs) are widely used to study Ub transfer and deubiquitinase (Dub) activity, they are limited to probing the active site while leaving other functionally important ...
Chittaranjan Das, Nipuni M. Pannala, Rishi S. Patel, Abhijith Saseendran Anit, Debapriya Bhattacharya, Kristos Negron Teron, Bryon Drown, Rudi Fasan   +7 more
wiley   +1 more source

Hardware and software solutions for implementing nanospray desorption electrospray ionization (nano-DESI) sources on commercial mass spectrometers. [PDF]

J Mass Spectrom
Jiang LX, Hilger RT, Laskin J.
europepmc   +1 more source

Hybridization Probes Featuring a Pyrenylpyridine C‐Nucleoside or Its Palladacycle as a Fluorescent Sensor Moiety

ChemBioChem, EarlyView.
When placed in the middle of a double helix as a nucleobase surrogate, pyren‐1‐ylpyridine and its palladacyclic derivative show fluorescence emission sensitive to the identity of the canonical nucleobase opposite to it. Emission of the palladacycle is weaker but the base discrimination stronger, possibly because of Pd(II)‐mediated base pairing.
Dattatraya Uttam Ukale, Tuomas Lönnberg
wiley   +1 more source

Desorption Electrospray Ionization Cyclic Ion Mobility-Mass Spectrometry Imaging for Traumatic Brain Injury Spatial Metabolomics. [PDF]

Anal Chem
Leontyev D, Olivos H, Shrestha B, Datta Roy PM, LaPlaca MC, Fernández FM.   +5 more
europepmc   +1 more source

Compositional Characterization of Syngas-Based Glycolide Using Gas Chromatogram-Mass Spectrometry and Electrospray Ionization High-Resolution Mass Spectrometry. [PDF]

Molecules
Zhang Y, Chen J, He J, Li S, Wang Y, Zhang Y, Shi Q.   +6 more
europepmc   +1 more source

Triboelectric Nanogenerators: Low-Cost Power Supplies for Improved Electrospray Ionization. [PDF]

Int J Mass Spectrom
Vallejo DD, Corstvet JL, Fernández FM.
europepmc   +1 more source

Automated sample preparation for electrospray ionization mass spectrometry based on CLOCK-controlled autonomous centrifugal microfluidics. [PDF]

Biomed Microdevices
Futami M, Naito H, Ninomiya S, Chen LC, Iwano T, Yoshimura K, Ukita Y.   +6 more
europepmc   +1 more source

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On the Mechanism of Extractive Electrospray Ionization

Analytical Chemistry, 2010
Extractive electrospray ionization (EESI) is a powerful ambient ionization technique that can provide comprehensive mass spectrometric (MS) information on aerosols, complex liquids, or suspensions without any sample pretreatment. An understanding of the EESI mechanism is critical for defining its range of application, the advantages, and limitations of
Rui Wang, Christian Berchtold, Wai Siang Law, Lukas Meier, Huanwen Chen, Renato Zenobi, Bin Hu   +6 more
openaire   +3 more sources

Electrospray ionization of volatiles in breath [PDF]

International Journal of Mass Spectrometry, 2007
Abstract Recent work by Zenobi and colleagues [H. Chen, A. Wortmann, W. Zhang, R. Zenobi, Angew. Chem. Int. Ed. 46 (2007) 580] reports that human breath charged by contact with an electrospray (ES) cloud yields many mass peaks of species such as urea, glucose, and other ions, some with molecular weights above 1000 Da.
Pablo Martínez-Lozano, J. Fernandez de la Mora   +1 more
openaire   +1 more source

Unraveling the Mechanism of Electrospray Ionization

Analytical Chemistry, 2012
Electrospray ionization (ESI) generates intact gas-phase ions from analytes in solution for mass spectrometric investigations. ESI can proceed via different mechanisms. Low molecular weight analytes follow the ion evaporation model (IEM), whereas the charged residue model (CRM) applies to large globular species.
Lars Konermann, Antony D. Rodriguez, Siavash Vahidi, Elias Ahadi   +3 more
openaire   +3 more sources