The action of a tetrapropylammonium hydroxide solution on lamellar zeolite precursor MCM-22P produced a stable aqueous colloidal suspension which was shown by X-ray diffraction, small angle X-ray scattering and atomic force microscopy to contain ultrathin two-dimensional (2D) crystallites, including one-unit cell thick (i.e., 2.5 nm) monolayers.
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http://dx.doi.org/10.1039/c4cc02540g | DOI Listing |
J Colloid Interface Sci
December 2024
Department of Mechanical Engineering, University of Alberta, 9211-116 Street NW., Edmonton, Alberta T6G 1H9, Canada. Electronic address:
Copper hexacyanoferrate (CuHCF) demonstrates high working voltage, convenient synthesis methods, and economic benefits. However, capacity decay of CuHCF//Zn full cells is usually observed in aqueous electrolytes due to the dissolution of Cu and Fe, as indicated by the irreversible insertion of Zn ions and the consequent formation of ZnCuHCF. To address these challenges, a cathode-oriented electrolyte engineering design employing a methyl acetate (MA) co-solvent with zinc triflate (Zn(OTf)) salt electrolyte is implemented.
View Article and Find Full Text PDFJ Food Drug Anal
December 2024
Department of Pharmacy, School of Health Sciences, Frederick University, Nicosia, 1036, Cyprus.
Pharmaceutical nanosuspensions, also called nanocrystals, are heterogeneous mainly aqueous dispersions of insoluble drug particles stabilised by surfactants and/or polymers. Nanosuspensions as liquid formulations suffer from instability. Solidification of nanosuspensions to solid dosage forms is a way to combine the advantages of nanocrystals with the advantages of the solid state.
View Article and Find Full Text PDFSoft Matter
January 2025
Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
The impact of animal-based food production on climate change drives the development of plant-based alternatives. We demonstrate the use of colloidal thermogelation on a real nanoemulsion system to create structured gels that could be of interest for thermo-mechanical processing of next-generation plant-based food applications. We use a commercial pea protein isolate (PPI) without further purification to stabilize a 20 vol% peanut oil-in-water nanoemulsion at pH = 7 by high-pressure homogenization (HPH) and demonstrate the temperature induced gelation behavior of the nanoemulsion as a function of the HPH processing parameters.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2024
Key Laboratory of Automobile Materials, Ministry of Education, and College of Materials Science and Engineering, Jilin University, Changchun 130022, China. Electronic address:
Uncontrolled zinc dendrite growth and adverse side reactions at the Zn anode interface severely limit its practical application. Based on theoretical calculations, this study in situ constructs a functional interface (ICFI Zn) on the Zn anode surface, consisting of a surface-textured structure and a zinc-philic protective layer. Benefiting from the synergistic effect of ion regulation and atomic anchoring of this functional interface, the ICFI Zn anode achieves homogenised regulation of ion fluxes, facilitates ion transport kinetics, effectively suppresses side reactions and guides the deposition of dendrite-free Zn.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2024
Department of Chemical Sciences, SSPC, the Research Ireland Centre for Pharmaceuticals, Bernal Institute, University of Limerick, V94 T9PX, Ireland. Electronic address:
Hypothesis: It is hypothesised in this work that mesoscale clusters will be present in both undersaturated and supersaturated solutions of organic pharmaceutical molecules. These clusters, being loose aggregates, could be sensitive to shear forces experienced during filtration. Thus, comparing the behaviour of these clusters alongside nanoparticles during filtration-an important sample treatment parameter during crystallization-will elucidate qualitative differences from solid, crystalline nanoparticles of similar size.
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