Mathieu Lalande
YOU?
Author Swipe
View article: Fast switching of various ions from 11 to 23 MeV/u for space applications at GANIL
Fast switching of various ions from 11 to 23 MeV/u for space applications at GANIL Open
International audience
View article: Isotopic Fission Fragment Distributions in the Thorium Region Produced in Inverse-kinematics with a \(^{232}\)Th Beam
Isotopic Fission Fragment Distributions in the Thorium Region Produced in Inverse-kinematics with a \(^{232}\)Th Beam Open
This work presents the preliminary fragment distributions produced through transfer-induced fission with a \(^{232}\)Th beam, which has been accelerated for the first time at GANIL on a \(^{12}\)C target. The experimental setup is describe…
View article: A Study of Diffusion Coefficients: Database and New Device
A Study of Diffusion Coefficients: Database and New Device Open
The aim of the TULIP (Target ion soUrce for short-Lived Isotope Production) device is dedicated to the production of short-lived neutron deficient ions using ISOL (Isotope Separator On Line) method. The efficiency of such device depends on…
View article: Ionizing radiation induces cross-linking of two noncovalently bound collagen mimetic peptide triple helices in the absence of a molecular environment
Ionizing radiation induces cross-linking of two noncovalently bound collagen mimetic peptide triple helices in the absence of a molecular environment Open
We show experimental evidence that ionizing radiation is able to cross-link two collagen mimetic peptide triple helices in the gas phase, challenging the previously proposed water-mediated collagen cross-linking mechanism.
View article: Nanoscale multiply charged focused ion beam platform for surface modification, implantation, and analysis
Nanoscale multiply charged focused ion beam platform for surface modification, implantation, and analysis Open
The PELIICAEN (Platform for the Study of Ion Implantation Controlled and Analyzed at the Nanometric Scale) setup is a unique device, both for all of its in situ ultra-high vacuum equipment (focused ion beam column, secondary electron micro…
View article: Chemical Processes Involving 18‐Crown‐6‐Ether in Activated Noncovalent Complexes with Protonated Peptides
Chemical Processes Involving 18‐Crown‐6‐Ether in Activated Noncovalent Complexes with Protonated Peptides Open
These last decades, it has been widely assumed that 18‐crown‐6‐ether (CE) plays a spectator role during the chemical processes occurring in isolated host‐guest complexes between peptides or proteins and CE after activation in mass spectrom…
View article: Coulomb-explosion imaging of carbon monoxide dimers
Coulomb-explosion imaging of carbon monoxide dimers Open
We report on experimental results obtained from collisions of slow highly\ncharged Ar9+ ions with a carbon monoxide dimer (CO)2 target. A COLTRIMS setup\nand a Coulomb explosion imaging approach are used to reconstruct the structure\nof th…
View article: Multiple valence electron detachment following Auger decay of inner-shell vacancies in gas-phase DNA
Multiple valence electron detachment following Auger decay of inner-shell vacancies in gas-phase DNA Open
A K-shell vacancy in DNA that is induced by a (therapeutically relevant) soft X-ray of MeV carbon ion, decays by Auger processes accompanied by emission of at least 3 low energy electrons.
View article: Mass Spectral Signatures of Complex Post-Translational Modifications in Proteins: A Proof-of-Principle Based on X-ray Irradiated Vancomycin
Mass Spectral Signatures of Complex Post-Translational Modifications in Proteins: A Proof-of-Principle Based on X-ray Irradiated Vancomycin Open
Characterizing post-translational modifications (PTM) of proteins is of key relevance for the understanding of many biological processes, as these covalent modifications strongly influence or even determine protein function. Among the diff…
View article: Influence of ionizing radiation on molecular recognition in the gas phase: VUV and X-ray photoabsorption of antibiotic-receptor non-covalent complexes
Influence of ionizing radiation on molecular recognition in the gas phase: VUV and X-ray photoabsorption of antibiotic-receptor non-covalent complexes Open
Synopsis The intrinsic effects of ionizing radiation on molecular recognition between an antibiotic and its re-ceptor have been probed by coupling a synchrotron beamline to a tandem mass spectrometer. Protonated vanco-mycin-receptor non-co…
View article: Photoinduced Processes within Noncovalent Complexes Involved in Molecular Recognition
Photoinduced Processes within Noncovalent Complexes Involved in Molecular Recognition Open
Investigating the intrinsic properties of molecular complexes is crucial for understanding the influence of noncovalent interactions on fundamental chemical reactions. Moreover, specific molecular recognition between a ligand and its recep…
View article: Direct Radiation Effects on the Structure and Stability of Collagen and Other Proteins
Direct Radiation Effects on the Structure and Stability of Collagen and Other Proteins Open
In this review, recent progress in understanding the direct effects of radiation on the structure and stability of collagen, the most abundant protein in the human body, and other proteins is surveyed. Special emphasis is placed on the tri…
View article: Irradiation of isolated collagen mimetic peptides by x rays and carbon ions at the Bragg-peak energy
Irradiation of isolated collagen mimetic peptides by x rays and carbon ions at the Bragg-peak energy Open
We report on an experimental irradiation of isolated peptides by carbon ions at the Bragg-peak energy. Collagen mimetic peptides and their noncovalent complexes undergo nondissociative ionization, but also inter- and intramolecular fragmen…
View article: Frontispiece: Isolated Collagen Mimetic Peptide Assemblies Have Stable Triple‐Helix Structures
Frontispiece: Isolated Collagen Mimetic Peptide Assemblies Have Stable Triple‐Helix Structures Open
The stability of the remarkable triple helix structure of collagen, the most abundant protein in mammalian organisms, has been investigated by tandem-ion mobility and mass spectrometry. It was shown that collagen mimetic peptides can retai…
View article: Stabilities of nanohydrated thymine radical cations: insights from multiphoton ionization experiments and ab initio calculations
Stabilities of nanohydrated thymine radical cations: insights from multiphoton ionization experiments and ab initio calculations Open
Multi-photon ionization experiments have been carried out on thymine-water clusters in the gas phase. Metastable H2O loss from T+(H2O)n was observed at n ≥ 3 only. Ab initio quantum-chemical calculations of a large range of optimized T+(H2…
View article: Radical-driven processes within a peptidic sequence of type I collagen upon single-photon ionisation in the gas phase
Radical-driven processes within a peptidic sequence of type I collagen upon single-photon ionisation in the gas phase Open
Radical creation after single-photon ionisation of collagen peptides induces the loss of molecules from amino-acid residue side-chains.
View article: Single-photon absorption of isolated collagen mimetic peptides and triple-helix models in the VUV-X energy range
Single-photon absorption of isolated collagen mimetic peptides and triple-helix models in the VUV-X energy range Open
By monitoring ionization and fragmentation after single-photon absorption, we show that an isolated collagen triple helix model is stabilized by proline hydroxylation.
View article: Near edge X-ray absorption mass spectrometry of gas phase proteins: the influence of protein size
Near edge X-ray absorption mass spectrometry of gas phase proteins: the influence of protein size Open
The response of gas-phase proteins upon soft X-ray absorption depends strongly on the proteins size.