Publications related to SpectroSwiss

Microfabricated Dual Sprayer for On-Line Mass Tagging of Phosphopeptides

Hubert Girault, Niels Erik Lion, Michel Prudent, Joël Stéphane Rossier

Phosphopeptides tagging reactions by dinuclear zinc(II) complexes (1,3-bis[bis(2-pyridylmethyl)amino]-propan- 2-olato dizinc(II)3+, called tag) were performed with a dual-channel microsprayer in electrospray ionization mass spectrometry. The reaction is fi ...

2008

Peptide-Phospholipid Complex Formation at Liquid-Liquid Interfaces

Hubert Girault, Manuel Alejandro Méndez Agudelo, Michel Prudent, Bin Su

Two peptides known to interact with receptors embedded in cell membranes, angiotensin III (AngIII) and Leuenkephalin(LeuEnk), were studied electrochemically at the interface formed between two immiscible electrolyte solutions modified by an adsorbed monola ...

2008

Chemical Mapping of Ceramide Distribution in Sphingomyelin-Rich Domains in Monolayers

Dusan Vobornik

The incorporation of ceramide in phase-separated monolayers of ternary lipid mixtures has been studied by a combination of atomic force microscopy (AFM), fluorescence, and time-of-flight secondary ion mass spectrometry (ToF-SIMS). Replacement of a fraction ...

American Chemical Society2008

Micropatterning of gold substrates based on poly(propylene sulfide-bl-ethylene glycol), (PPS-PEG) background passivation and the molecular-assembly patterning by lift-off (MAPL) technique

Jeffrey Alan Hubbell

Poly(propylene sulfide-bl-ethylene glycol) (PPS-PEG) is an amphiphilic block copolymer that spontaneously adsorbs onto gold from solution. This results in the formation of a stable polymeric layer that renders the surface protein-resistant when an appropri ...

2008

Biphasic Electrospray Ionization for the Study of Interfacial Complexes

Hubert Girault, Manuel Alejandro Méndez Agudelo, Michel Prudent

Biphasic electrospray ionization (BESI) mass spectrometry is achieved by using a dual-channel microsprayer, where channels filled with different immiscible phases meet at the Taylor cone. Two types of interfacial complexation reactions have been studied: t ...

The Japan Society of Analytical Chemistry / The Japan Society for Analytical Chemistry2008

Electron-phonon interaction and charge carrier mass enhancement in SrTiO3

Claudio Grimaldi, Dirk Van der Marel

We report a comprehensive THz, infrared and optical study of Nb-doped SrTiO3 as well as dc conductivity and Hall effect measurements. Our THz spectra at 7 K show the presence of an unusually narrow (< 2 meV) Drude peak. For all carrier concentrations the D ...

2008

Three-Phase Catalytic Hydrogenation of a Functionalized Alkyne: Mass Transfer and Kinetic Studies with in Situ Hydrogen Monitoring

Albert Renken, Lioubov Kiwi, Martin Grasemann

Systematic studies of mass transfer interactions with intrinsic reaction kinetics were performed for the threephase selective hydrogenation of 2-methyl-3-butyn-2-ol (MBY) to 2-methyl-3-buten-2-ol (MBE) over a modified Pd/CaC

{O}_{3}

catalyst under solvent ...

2008

On-line Electrogeneration of Copper-Peptide Complexes in Microspray Mass Spectrometry

Hubert Girault, Michel Prudent

The interaction of copper ions with peptides was investigated by electrospray mass spectrometry. Two electrospray micro-emitters were compared, the first one with a platinum electrode using a copper(II) electrolyte solution containing a peptide sample, and ...

2008

New Metabolites in the Degradation of α- and γ-Hexachlorocyclohexane (HCH): Pentachlorocyclohexenes Are Hydroxylated to Cyclohexenols and Cyclohexenediols by the Haloalkane Dehalogenase LinB from Sphingobium indicum B90A

Christof Holliger, Thomas Geiger, Vishakha Raina

Technical hexachlorocyclohexane (HCH) and lindane are obsolete pesticides whose former production and use led to widespread contaminations posing serious and lasting health and environmental risks. Out of nine possible stereoisomers, α-, β-, γ-, and δ-HCH ...

American Chemical Society2008

Photoexcitation and photoionization dynamics of doped liquid helium-4 nanodroplets

Evgeniy Loginov

The photoexcitation and photoionization dynamics of sodium atoms deposited on the surface of helium nanodroplets and aromatic molecules (aniline, phenol and toluene) embedded in the interior of droplets have been investigated by a variety of spectroscopic ...

EPFL2008

SpectroSwiss

Graph Chatbot

Chat with Graph Search

Microfabricated Dual Sprayer for On-Line Mass Tagging of Phosphopeptides

Peptide-Phospholipid Complex Formation at Liquid-Liquid Interfaces

Chemical Mapping of Ceramide Distribution in Sphingomyelin-Rich Domains in Monolayers

Micropatterning of gold substrates based on poly(propylene sulfide-bl-ethylene glycol), (PPS-PEG) background passivation and the molecular-assembly patterning by lift-off (MAPL) technique

Biphasic Electrospray Ionization for the Study of Interfacial Complexes

Electron-phonon interaction and charge carrier mass enhancement in SrTiO3

Three-Phase Catalytic Hydrogenation of a Functionalized Alkyne: Mass Transfer and Kinetic Studies with in Situ Hydrogen Monitoring

On-line Electrogeneration of Copper-Peptide Complexes in Microspray Mass Spectrometry

New Metabolites in the Degradation of α- and γ-Hexachlorocyclohexane (HCH): Pentachlorocyclohexenes Are Hydroxylated to Cyclohexenols and Cyclohexenediols by the Haloalkane Dehalogenase LinB from Sphingobium indicum B90A

Photoexcitation and photoionization dynamics of doped liquid helium-4 nanodroplets

Chemical Mapping of Ceramide Distribution in Sphingomyelin-Rich Domains in Monolayers

Electron-phonon interaction and charge carrier mass enhancement in SrTiO3

Biphasic Electrospray Ionization for the Study of Interfacial Complexes

Micropatterning of gold substrates based on poly(propylene sulfide-bl-ethylene glycol), (PPS-PEG) background passivation and the molecular-assembly patterning by lift-off (MAPL) technique

Microfabricated Dual Sprayer for On-Line Mass Tagging of Phosphopeptides

Peptide-Phospholipid Complex Formation at Liquid-Liquid Interfaces

On-line Electrogeneration of Copper-Peptide Complexes in Microspray Mass Spectrometry

Three-Phase Catalytic Hydrogenation of a Functionalized Alkyne: Mass Transfer and Kinetic Studies with in Situ Hydrogen Monitoring

New Metabolites in the Degradation of α- and γ-Hexachlorocyclohexane (HCH): Pentachlorocyclohexenes Are Hydroxylated to Cyclohexenols and Cyclohexenediols by the Haloalkane Dehalogenase LinB from Sphingobium indicum B90A

Photoexcitation and photoionization dynamics of doped liquid helium-4 nanodroplets