A5042930474- Crystallization and Solubility Studies
- Crystallography and molecular interactions
- X-ray Diffraction in Crystallography
- Chemical Thermodynamics and Molecular Structure
- Analytical Chemistry and Chromatography
- Dendrimers and Hyperbranched Polymers
- Electrohydrodynamics and Fluid Dynamics
- Thermal and Kinetic Analysis
- Fullerene Chemistry and Applications
- Crystal structures of chemical compounds
- Mass Spectrometry Techniques and Applications
- Protein Structure and Dynamics
- Drug Solubulity and Delivery Systems
- Synthesis and Reactions of Organic Compounds
- Luminescence and Fluorescent Materials
- Molecular spectroscopy and chirality
- Molecular Sensors and Ion Detection
- Synthesis and properties of polymers
- Surface Modification and Superhydrophobicity
- Liquid Crystal Research Advancements
- Boron and Carbon Nanomaterials Research
- Analytical Methods in Pharmaceuticals
- Nonlinear Optical Materials Research
- Advanced Polymer Synthesis and Characterization
- Phase Equilibria and Thermodynamics
Université de Rouen Normandie
2017-2025
Normandie Université
2017-2025
Université Paris Cité
2015-2024
Délégation Paris 5
2014-2024
Sorbonne Paris Cité
2018-2023
Laboratoire Sciences et Méthodes Séparatives
2018-2023
The University of Tokyo
2023
Observatoire de Paris
2020-2021
Différenciation et Communication Neuronale et Neuroendocrine
2019
Sorbonne Université
2018-2019
Poly(vinylidene fluoride) film formation with electrospray deposition has been studied support of a droplet evaporation model. The input parameters the model consist basically solvent, solute concentration, flow rate, and solution conductivity. provides size, velocity, shear stress at impact as function distance between nozzle substrate. With some additional experimental information such size change spray viscosity solution, growth rate can be determined. Growth is shown to define distinct...
Kristen Fichthorn opened the discussion of introductory lecture by James De Yoreo: I noted that in your potential mean force (PMF) plots for various particle orientations, fluctuations occur such different orientations could be preferred at a fixed distance. Could this affect ag
It has been shown that depositing ketoprofen as thin films on glass substrates a stabilizing effect the amorphous state of ketoprofen. Polyethylene glycol (M = 6000 g/mol) was mixed with in wide range concentrations. Amorphous were prepared by spin coating and subjected to storage conditions different levels relative humidity. The characterized specular X-ray diffraction atomic force microscopy assess their stability dry wet atmospheres. In atmosphere, remained stable for up 4 months,...
Hybrid and nanocomposite silica-collagen materials derived from concentrated collagen hydrogels were evaluated in vitro vivo to establish their potentialities for biological dressings. Silicification significantly improved the mechanical thermal stability of network within hybrid systems. Nanocomposites found favor metabolic activity immobilized human dermal fibroblasts while decreasing hydrogel contraction. Cell adhesion experiments suggested that cell behavior was dictated by properties...
Facial angiofibromas (FA) are one of the most obvious cutaneous manifestations tuberous sclerosis complex. Topical rapamycin for has been reported as a promising treatment. Several types vehicles have used hitherto, but polymeric micelles and especially those made d-α-tocopherol polyethylene glycol 1000 succinate (TPGS) seem to shown better skin bioavailability than so far commonly ointments. To understand influence on behavior rapamycin, we explored it through mixed combining TPGS...
The self-diffusion coefficients have been determined for five generations of poly(propylene imine) dendrimers in methanol at three different temperatures5, 25, and 45 °Cover the whole concentration range. Pulsed field gradient spin echo NMR has used. Stokes−Einstein hard sphere radii calculated zero limit. They were equal, within error, to found from viscosity. high-generation regimes: a dilute, semidilute, concentrated regime. For lower generations, only dilute semidilute regime can be...
Abstract Diblock star polymers were synthesized via atom transfer radical polymerization from a palladium porphyrin macroinitiator. The arms of the had an amphiphilic design, with central Pd‐porphyrin surrounded by relatively hydrophobic block poly(butyl acrylate) and terminated hydrophilic poly(oligoethyleneglycol monomethylether monomethacrylate). size both interior exterior blocks polymer tuned over wide range molecular weights used to solubilize stars in polar media. showed enhanced...
Luminescent materials have many interesting applications, but it remains difficult to control the luminescence of organic and in particular retain same solution solid state, a property interest for various imaging applications. In present work, fluorescent properties salt 2,6-diaminopyridinium with dihydrogen phosphate been explored. As result proton transfer from phosphoric acid pyridine nitrogen stabilizing effect two primary amines at positions ortho nitrogen, band gap between HOMO LUMO...
The colligative properties of poly(propylene imine) dendrimers in methanol have been investigated with low-angle laser light scattering and vapor pressure osmometry. molecular weights second virial coefficients the first five generations determined. found to agree theoretically expected values. Effective radii obtained from coefficient, viscosity, partial specific volume. Both pair interaction viscous state particles are considered terms effective volumes. fifth generation shows most...
In pharmacy, racemic compounds are often problematic, because generally only one of the enantiomers possesses therapeutic activity and it is difficult to separate them. Even though this problem likely as old pharmaceutical industry, thermodynamically obvious way separating crystals has never been studied experimentally, which by using pressure. Data have obtained on equilibria (R)- (S)-mandelic acid system a function pressure temperature. With use thermodynamic arguments including Clapeyron,...
From the point of view crystal growth and design, it is interesting to study effect different isomers on resulting structure. Single crystals organic salt benzimidazolium 3-nitrophthalate (BZD+·mNPA−) have been grown by slow evaporation from methanol solution. X-ray diffraction demonstrated that structure belongs monoclinic system with space group P21/c. The properties functional groups studied FTIR spectroscopy, FT-Raman spectral analysis 1H 13C NMR spectroscopy. emission spectra BZD+·mNPA−...
Poly(vinylidene fluoride) films about 100 nm thick and with a highly reproducible surface structure were prepared by electrospray deposition. The consist of dome-shaped domains, which exhibit short-range order in liquid-like fashion. No special requirements for the setup are necessary preparation these films. Electrostatic repulsion creates domes it controls their position respect to other domes, similar colloidal crystal formation. Infrared, X-ray piezoresponse measurements indicate that...