Philippe Fontaine
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View article: A high transmission tender X-ray monochromator employing a matched pair of multilayer grating and mirror
A high transmission tender X-ray monochromator employing a matched pair of multilayer grating and mirror Open
It is now well established that multilayer coated gratings may offer high diffraction efficiencies over the tender X-ray range, from about 1 keV to 5 keV, covering the gap between single layer coated grating monochromators and crystal mono…
View article: Synergistic Effect of Paclitaxel and Epirubicin Coadministration─Insight into the Mechanisms of Interactions with Model Breast Cancer Cell Membranes
Synergistic Effect of Paclitaxel and Epirubicin Coadministration─Insight into the Mechanisms of Interactions with Model Breast Cancer Cell Membranes Open
This study investigates the synergistic interaction mechanism of paclitaxel (PTX) and epirubicin (EPI) coadministration with model breast cancer cell membranes formed by monocomponent and ternary phospholipid monolayers composed of DPPC, c…
View article: Oxidation of lipid membrane cholesterol by cholesterol oxidase and its effects on raft model membrane structure
Oxidation of lipid membrane cholesterol by cholesterol oxidase and its effects on raft model membrane structure Open
The effects of a peripheral protein - cholesterol oxidase (3β-hydroxysteroid oxidase, ChOx) on the characteristics of model lipid membranes composed of cholesterol, cholesterol:sphingomyelin (1:1), and the raft model composed of DOPC:Chol:…
View article: Condensation or Desublimation: Nanolevel Structural Look on Two Frost Formation Pathways on Surfaces with Different Wettabilities
Condensation or Desublimation: Nanolevel Structural Look on Two Frost Formation Pathways on Surfaces with Different Wettabilities Open
Processes of water condensation and desublimation on solid surfaces are ubiquitous in nature and essential for various industrial applications, which are crucial for their performance. Despite their significance, these processes are not we…
View article: New Insights into the Molecular Structure of Tear Film Lipids Revealed by Surface X-ray Scattering
New Insights into the Molecular Structure of Tear Film Lipids Revealed by Surface X-ray Scattering Open
The tear film lipid layer (TFLL) is a unique biological membrane that serves a pivotal role in the maintenance of ocular surface health. Reaching an overarching understanding of the functional principle of the TFLL has been hampered by a l…
View article: Interface-Templated Crystal Growth in Sodium Dodecyl Sulfate Solutions with NaCl
Interface-Templated Crystal Growth in Sodium Dodecyl Sulfate Solutions with NaCl Open
Many ionic surfactants, such as sodium dodecyl sulfate (SDS) crystallize out of solution if the temperature falls below the crystallization boundary. The crystallization temperature is impacted by solution properties and can be decreased w…
View article: On-water surface synthesis of electronically coupled 2D polyimide-MoS2 van der Waals heterostructure
On-water surface synthesis of electronically coupled 2D polyimide-MoS2 van der Waals heterostructure Open
The water surface provides a highly effective platform for the synthesis of two-dimensional polymers (2DP). In this study, we present an efficient on-water surface synthesis of crystalline monolayer 2D polyimide (2DPI) through the imidizat…
View article: Opportunities and new developments for the study of surfaces and interfaces in soft condensed matter at the SIRIUS beamline of Synchrotron SOLEIL
Opportunities and new developments for the study of surfaces and interfaces in soft condensed matter at the SIRIUS beamline of Synchrotron SOLEIL Open
The SIRIUS beamline of Synchrotron SOLEIL is dedicated to X-ray scattering and spectroscopy of surfaces and interfaces, covering the tender to mid-hard X-ray range (1.1–13 keV). The beamline has hosted a wide range of experiments in the fi…
View article: Interface-templated crystal growth in sodium dodecyl sulfate solutions with NaCl
Interface-templated crystal growth in sodium dodecyl sulfate solutions with NaCl Open
Many ionic surfactants, such as sodium dodecyl sulphate (SDS) crystallize out of solution if the temperature falls below the crystallization boundary. The crystallization temperature is impacted by solution properties, and can be decreased…
View article: Statin Action Targets Lipid Rafts of Cell Membranes: GIXD/PM-IRRAS Investigation of Langmuir Monolayers
Statin Action Targets Lipid Rafts of Cell Membranes: GIXD/PM-IRRAS Investigation of Langmuir Monolayers Open
Lipid rafts are condensed regions of cell membranes rich in cholesterol and sphingomyelin, which constitute the target for anticholesterolemic drugs - statins. In this work, we use for the first time a combined grazing-incidence X-ray diff…
View article: Is lipophilicity the main factor determining the effective drug penetration through lipid membranes? Combined GIXD and PM-IRRAS studies on the example of anthracyclines
Is lipophilicity the main factor determining the effective drug penetration through lipid membranes? Combined GIXD and PM-IRRAS studies on the example of anthracyclines Open
Cell membranes constitute the first barrier for the drugs on their way to the cell. Therefore, their penetration determines the effectivity of the treatment and is defined by the drug-lipid interactions. A systematic, comprehensive study t…
View article: Structural investigation of titanium oxide nanowires with unconventional optoelectronic behaviour
Structural investigation of titanium oxide nanowires with unconventional optoelectronic behaviour Open
Grazing incidence wide angle X-ray scattering measurements on aligned titanium oxide nanowires displaying anisotropic optical–electronic properties are carried out.
View article: Influence of the Surface Chemistry of Metal–Organic Polyhedra in Their Assembly into Ultrathin Films for Gas Separation
Influence of the Surface Chemistry of Metal–Organic Polyhedra in Their Assembly into Ultrathin Films for Gas Separation Open
The formation of ultrathin films of Rh-based porous metal-organic polyhedra (Rh-MOPs) by the Langmuir-Blodgett method has been explored. Homogeneous and dense monolayer films were formed at the air-water interface either using two differen…
View article: Influence of lipophilicity of anthracyclines on the interactions with cholesterol in the model cell membranes – Langmuir monolayer and SEIRAS studies
Influence of lipophilicity of anthracyclines on the interactions with cholesterol in the model cell membranes – Langmuir monolayer and SEIRAS studies Open
The interactions of anthracyclines with biological membranes strongly depend on the drug lipophilicity, which might also determine the specific affinity to cholesterol molecules. Therefore, in this work we show the studies concerning the e…
View article: Ligand-free synthesis of gold nanoparticles incorporated within oriented cylindrical block copolymer films : towards optical metamaterials
Ligand-free synthesis of gold nanoparticles incorporated within oriented cylindrical block copolymer films : towards optical metamaterials Open
We report a method to incorporate non-functionalized gold nanoparticles (AuNPs) in oriented cylindrical phases of poly(styrene)-b-poly(vinylpyridine) (PS-b-PVP) block copolymers, perpendicular to a substrate. The combination of AFM, TEM, G…
View article: Unexpected Order–Disorder Transition in Diacetylene Alcohol Langmuir Films
Unexpected Order–Disorder Transition in Diacetylene Alcohol Langmuir Films Open
International audience
View article: Degradation of carbon fiber reinforced peek composite under different atmospheres
Degradation of carbon fiber reinforced peek composite under different atmospheres Open
International audience
View article: Surface Pressure-Induced Interdiffused Structure Evidenced by Neutron Reflectometry in Cellulose Acetate/Polybutadiene Langmuir Films
Surface Pressure-Induced Interdiffused Structure Evidenced by Neutron Reflectometry in Cellulose Acetate/Polybutadiene Langmuir Films Open
Binary blends of water-insoluble polymers are a versatile strategy to obtain nanostructured films at the air-water interface. However, there are few reported structural studies of such systems in the literature. Depending on the compatibil…
View article: Spatially Addressed Supramolecular Nanowires: A Full Structural Characterization by GIWAXS
Spatially Addressed Supramolecular Nanowires: A Full Structural Characterization by GIWAXS Open
International audience
View article: Langmuir Films of Perfluorinated Fatty Alcohols: Evidence of Spontaneous Formation of Solid Aggregates at Zero Surface Pressure and Very Low Surface Density
Langmuir Films of Perfluorinated Fatty Alcohols: Evidence of Spontaneous Formation of Solid Aggregates at Zero Surface Pressure and Very Low Surface Density Open
In this work, Langmuir films of two highly fluorinated fatty alcohols, CF3(CF2)12CH2OH (F14OH) and CF3(CF2)16CH2OH (F18OH), were studied. Atomic Force Microscopy (AFM) images of the films transferred at zero surface pressure and low surfac…
View article: Large area Al₂O₃–Au raspberry-like nanoclusters from iterative block-copolymer self-assembly
Large area Al₂O₃–Au raspberry-like nanoclusters from iterative block-copolymer self-assembly Open
In the field of functional nanomaterials, core–satellite nanoclusters have recently elicited great interest due to their unique optoelectronic properties. However, core–satellite synthetic routes to date are hampered by delicate and multis…
View article: Grazing Incidence X-ray Diffraction Studies of Lipid–Peptide Mixed Monolayers during Shear Flow
Grazing Incidence X-ray Diffraction Studies of Lipid–Peptide Mixed Monolayers during Shear Flow Open
Grazing incidence X-ray diffraction (GIXD) studies of monolayers of biomolecules at an air-water interface give quantitative information of in-plane packing, coherence length of crystalline domains, etc. Rheo-GIXD measurements can reveal q…