نتایج جستجو برای: solvent evaporation method

تعداد نتایج: 1688659  

Journal: :Journal of the American Chemical Society 2002
Steven L Tripp Stephen V Pusztay Alexander E Ribbe Alexander Wei

Weakly ferromagnetic cobalt nanoparticles can assemble spontaneously into nanosized "bracelets" when dispersed in organic solvents containing resorcinarenes as surfactants. Bracelet self-assembly occurs in solution and is directed by magnetic dipolar interactions, whereas nanoparticle rings with larger diameters are produced by evaporation-driven flow on wetted surfaces.

2014
Azhad U. Chowdhury Christopher M. Dettmar Shane Z. Sullivan Shijie Zhang Kevin T. Jacobs David J. Kissick Thora Maltais Hartmut G. Hedderich Patricia A. Bishop Garth J. Simpson

Second harmonic generation (SHG) microscopy measurements indicate that inkjet-printed racemic solutions of amino acids can produce nanocrystals trapped in metastable polymorph forms upon rapid solvent evaporation. Polymorphism impacts the composition, distribution, and physico-kinetic properties of organic solids, with energetic arguments favoring the most stable polymorph. In this study, unfav...

2016
Eliska Vaculikova Aneta Cernikova Daniela Placha Martin Pisarcik Pavlina Peikertova Katerina Dedkova Ferdinand Devinsky Josef Jampilek Alexandru Mihai Grumezescu

Nanoparticles can be considered as a useful tool for improving properties of poorly soluble active ingredients. Hydrochlorothiazide (Class IV of the Biopharmaceutical Classification System) was chosen as a model compound. Antisolvent precipitation-solvent evaporation and emulsion solvent evaporation methods were used for preparation of 18 samples containing hydrochlorothiazide nanoparticles. Wa...

Journal: :The journal of physical chemistry letters 2018
Santanu Maiti Alexander André Rupak Banerjee Jan Hagenlocher Oleg Konovalov Frank Schreiber Marcus Scheele

We investigate in situ the structural changes during self-assembly of PbS nanocrystals from colloidal solution into superlattices, solvent evaporation, and ligand exchange at the acetonitrile/air interface by grazing incidence small-angle X-ray scattering (GISAXS). We simulate and fit the diffraction peaks under the distorted wave Born approximation (DWBA) to determine the lattice parameters. W...

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