Publications
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Unraveling Direct Formation of Hierarchical Zeolite Beta by Dynamic Light Scattering, Small Angle X-ray Scattering, and Liquid and Solid State NMR: Insights at the Supramolecular Level KU Leuven
© 2018 American Chemical Society. A case study on the understanding of the formation of hierarchical Beta zeolites using gemini-type piperidine based multiammonium surfactant (N 6 -diphe) is reported. Complementary techniques were used to investigate N 6 -diphe's structure-directing effect at the molecular level. Combining characterization of the resulting zeolite materials with the toolboxes herein developed for studying clear solutions and ...
Scanning of adsorption hysteresis in situ with small angle x-ray scattering University of Antwerp
Everett's theorem-6 of the domain theory was examined by conducting adsorption in situ with small angle x-ray scattering (SAXS) supplemented by the contrast matching technique. The study focuses on the spectrum differences of a point to which the system arrives from different scanning paths. It is noted that according to this theorem at a common point the system has similar macroscopic properties. Furthermore it was examined the memory string of ...
Lyotropic, liquid crystalline nanostructures of aqueous dilutions of SMEDDS revealed by Small Angle X–Ray Scattering: impact on solubility and drug release KU Leuven
The present study was conducted to characterise the liquid crystalline phases that occur upon diluting a SMEDDS and to elucidate the role of these phases on drug solubilisation and release. Small-angle X-ray scattering (SAXS) was used to probe the structures in aqueous dilutions of 3 SMEDDS consisting of propylene glycol mono- and dicaprylate and mono- and dicaprate (PGDCDC) and d-alpha-tocopheryl polyethylene glycol succinate 1000 (TPGS 1000), ...
Accounting for observed small angle X-ray scattering profile in the protein-protein docking server cluspro KU Leuven
The protein-protein docking server ClusPro is used by thousands of laboratories, and models built by the server have been reported in over 300 publications. Although the structures generated by the docking include near-native ones for many proteins, selecting the best model is difficult due to the uncertainty in scoring. Small angle X-ray scattering (SAXS) is an experimental technique for obtaining low resolution structural information in ...
Assembly of cellulose nanocrystals in a levitating drop probed by time-resolved small angle X-ray scattering KU Leuven
Assembly of bio-based nano-sized particles into complex architectures and morphologies is an area of fundamental interest and technical importance. We have investigated the assembly of sulfonated cellulose nanocrystals (CNC) dispersed in a shrinking levitating aqueous drop using time-resolved small angle X-ray scattering (SAXS). Analysis of the scaling of the particle separation distance (d) with particle concentration (c) was used to follow the ...
Atomic layer deposition-based tuning of the pore size in mesoporous thin films studied by in situ grazing incidence small angle X-ray scattering Ghent University University of Antwerp
Drying of a charge-stabilized colloidal suspension in-situ monitored by vertical small angle X-ray scattering KU Leuven
We report a first application of vertical small angle X-ray scattering to investigate the drying process of a colloidal suspension by overcoming gravity related restrictions. From the observation of the drying behavior of charge-stabilized colloidal silica in situ, we find the solidification of the colloidal particles exhibits an initial ordering, followed by a sudden aggregation when they overcome an electrostatic energy barrier. The ...
Crystallization and melting of inulin crystals. A small angle X-ray scattering approach (SAXS) KU Leuven
Bulk crystallization of the biopolymer inulin from concentrated solutions results in the same macroscopic and microscopic morphologies as those found for synthetic polymers. Optical and electron microscopy confirm the lamellar nature of the crystals and their arrangement into stacks of lamellar crystals in superstructures like axialites and spherulites. There is evidence for the occurrence of folded chain lamellar crystals. These findings ...