Concept

Liquid chromatography–mass spectrometry

Related publications (496)

Tissue Transglutaminase-mediated Glutamine Deamidation of beta-Amyloid Peptide Increases Peptide Solubility, Whereas Enzymatic Cross-linking and Peptide Fragmentation May Serve as Molecular Triggers for Rapid Peptide Aggregation

Horst Vogel, Yury Tsybin, Diego Chiappe, Marc Moniatte, Adrian Schmid, Enrico Condemi

Tissue transglutaminase (TGase) has been implicated in a number of cellular processes and disease states, where the enzymatic actions of TGase may serve in both, cell survival and apoptosis. To date, the precise functional properties of TGase in cell survi ...

American Society for Biochemistry and Molecular Biology2011

Influence of Flow Regime on Mass Transfer in Different Types of Microchannels

Albert Renken, Lioubov Kiwi, Madhvanand Namadeo Kashid

The performance of microstructured reactors (or microchannels) for mass-transfer-controlled liquid-liquid reactions depends on flow regimes that define the specific interfacial area for the mass transfer. In the present work, experiments were carried out t ...

2011

Peptide Structure and Radical Chemistry in the Gas Phase Revealed by Product Ion Abundance Analysis in Electron Capture and Transfer Dissociation Mass Spectrometry

Hisham Ben Hamidane

Peptide and protein ion abundances in mass spectrometry (MS) and tandem mass spectrometry (MS/MS) may provide orthogonal, or complementary, information to their mass measurements. Collision induced dissociation (CID), the most commonly used MS/MS technique ...

EPFL2011

Room temperature ionic liquids based on cationic porphyrin derivatives and tetrakis(pentafluorophenyl)borate anion

Hubert Girault, Peiyu Ge

A series of 11 low melting ionic liquids based on meso-substituted A(3)B-porphyrins and A(2)B(2)-porphyrins containing one or two pyridyl substituents have been synthesized in high yields. Three of them are liquids at room temperature. All these porphyrini ...

Wiley-Blackwell2011

Extents of Reaction and Mass Transfer in the Analysis of Chemical Reaction Systems

Nirav Pravinbhai Bhatt

Monitoring, control and optimization of chemical reaction systems often requires in-depth analysis of the underlying reaction mechanisms. This dissertation investigates appropriate tools that facilitate the analysis of homogeneous and gas-liquid reaction s ...

EPFL2011

Melittin Adsorption and Lipid Monolayer Disruption at Liquid-Liquid Interfaces

Hubert Girault, Manuel Alejandro Méndez Agudelo, Yu Lu, Zahra Nazemi

Melittin, a membrane-active peptide with antimicrobial activity, was investigated at the interface formed between two immiscible electrolyte solutions (ITIES) supported on a metallic electrode. Ion-transfer voltammetry showed well-defined semi-reversible t ...

American Chemical Society2011

Ga2O3 photocatalyzed on-line tagging of cysteine to facilitate peptide mass fingerprinting

Hubert Girault, Liang Qiao, Hongyan Bi

beta-Ga2O3 is a wide-band-gap semiconductor having strong oxidation ability under light irradiation. Herein, the steel target plates modified with beta-Ga2O3 nanoparticles have been developed to carry out in-source photo-catalytic oxidative reactions for o ...

2011

Ion Beam Deposition and STM Analysis of Macromolecules on Solid Surfaces in UHV

Nicha Thontasen

Organic and biological macromolecules have attracted great interest within nanotechnology research due to properties that can be useful in future devices. Interesting functionalities such as optical activity, host-guest binding and molecular recognition ar ...

EPFL2011

Quantitative analysis of the dripping and jetting regimes in co-flowing capillary jets

François Gallaire

We study a liquid jet that breaks up into drops in an external co-flowing liquid inside a confining microfluidic geometry. The jet breakup can occur right after the nozzle in a phenomenon named dripping or through the generation of a liquid jet that breaks ...

2011

Microfabrication of Capillary Electrospray Emitters and ToF Characterization of the Emitted Beam

Herbert Shea, Caglar Ataman, Simon Dandavino

Microfabrication, assembly, and characterization of internally fed arrays of electrospray emitters for spacecraft propulsion are discussed. Several different emitter geometries were fabricated, and the sprayed beams from these emitters are characterized fo ...

2011

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