Classically, solid nucleation is considered to be a stochastic process in which clusters of monomers randomly come together into solid a solid nucleus due to agitation or Brownian motion within a supercritical fluid. However, modern observations shed new light on alternative pathways via which nucleation reactions can occur, specifically via multi-...
Published in Environmental research
This article proposes an initial model of natural asbestiform minerals growing in four stages. Structures dating from the early stages of the development were observed in the damaged zone surrounding meso-fractures, more particularly in microfractures, microcavities and microcracks that lie in front of and along mesofractures. This study is limited...
Considered as one of the most productive method for obtaining highly accurate structural information about biological macromolecules, X-ray crystallography still faces two major hurdles, despite tremendous technological advances that this method have encountered: production of high-quality/well diffracting crystals and solving the phase problem inh...
La plupart des principes actifs pharmaceutiques peuvent exister à l’état solide sous différentes phases cristallines (polymorphes, solvates, cocristaux…). Celles-ci ont des propriétés physico-chimiques différentes, pouvant affecter l’efficacité d’un médicament, ainsi que son procédé de fabrication. Dans l’industrie pharmaceutique, un criblage de l’...
The non-photochemical laser induced nucleation (NPLIN) phenomenon occurs by irradiation of a supersaturated solution with a high energy pulsed nanosecond laser. NPLIN allows temporal control (decrease of induction time) and spatial control (nucleation inside the irradiated area) of nucleation. However, the interaction between the laser light and th...
Understanding how aerosol particles interact with atmospheric water is critical to understanding their impact on climate and precipitations. Ice Nuclei Particles (INPs) trigger the formation of atmospheric ice crystals. They are challenging to characterize because of their scarceness in the atmosphere and their variability. This variability depends...
International audience
Understanding aerosol formation and having ambient aerosol data is crucial for accurate climate modelling because aerosols have both direct and indirect climate effects. Even though the majority of the Earth is covered by oceans and the radiative budget over oceans is sensitive to changes in aerosol concentrations, most aerosol measurements are fro...
Nucleation is a key step in crystallization processes which is a crucial unit operation in the manufacture and purification of products, occurring in almost all sorts of industries including foods, pharmaceuticals, cosmetics, fine chemicals, ceramics, metallurgy and electronics. Thus, fundamental understanding of its nucleation kinetics is of immen...
Laser generated plasma is a complex and interesting system. The deposition of the pulse laser energy leads to a brutal phase transition and the formation of a plasma. This plasma is composed of molecules, atoms, ions, and electrons reacting together and with the environment. Such plasmas are used for measuring the composition of a target (LIBS), fo...
