An effective approach to stabilize emulsions is to increase the rigidity of oil-water (O/W) interfacial films by adsorbing molecular assemblies such as lamellar phases around the emulsion particles. In this study, we aimed to analyze the structure of a lamellar phase adsorbed at an O/W interface and to clarify the effect of the structure and physicochemical properties of the lamellar phase on the dispersion stability of emulsions. The adsorption of the lamellar phase at the O/W interface of the emulsions was confirmed by freeze-fracture transmission electron microscopy of O/W emulsions prepared by diluting and dispersing gels formed with polyglycerol fatty acid esters, water, and cetyl isooctanoate (CIO). The structure of the lamellar phase adsorbed at the O/W interface was analyzed in detail through small-angle X-ray scattering measurement and indirect Fourier transform analysis. The lamellar phase adsorbed at the O/W interface was shown to have an interdigitated structure with low CIO content, whereas it changed to a non-interdigitated structure with increasing CIO content. Furthermore, the adsorbed lamellar phases with interdigitated structures and high rigidity provide the emulsion with higher dispersion stability.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.5650/jos.ess24181 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Unusual Mesophases and Properties Exhibited by a Family of Glycosteroids.
Chemistry
January 2025
Universite Claude Bernard Lyon 1, ICBMS, Bâtiment Lederer, 1 Rue Victor Grignard, F-69622, Villeurbanne, FRANCE.
In this article we describe research on the synthesis and characterization of a family of "Janus" amphiphiles composed of disaccharide head groups and alkaloid units joined together via a methylene linker, and bearing a lateral aliphatic chain of varying length. The condensed phases formed by self-organization of the products as a function of temperature were characterized by differential scanning calorimetry, thermal polarized light microscopy, and small angle X-ray scattering, allied with computational modelling and simulations. Structural studies on heating specimens from the solid showed that some homologues exhibited lamellar, columnar and bicontinuous mesophases, whereas the same homologues revealed different phase sequences on cooling from the amorphous liquid.
View Article and Find Full Text PDFHot press sintering of YO-AlO glasses: Impact of particle size on thermal behaviour, sintering ability and mechanical properties of sintered bodies.
Heliyon
January 2025
Centre for functional and surface functionalized glass, Alexander Dubček University of Trenčín, Študentská 2, Trenčín, Slovakia.
The impact of grinding on particle size, thermal behaviour, and sintering ability of yttrium aluminate glass microspheres with eutectic composition (76.8 mol % AlO and 23.2 mol % YO) was studied.
View Article and Find Full Text PDFScreening of different lamellar solids for the adsorption of phenolic compounds from grape pomace.
Food Chem
December 2024
Section of Food, Biochemical, Physiological and Nutritional Sciences, Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy.
Grape pomace (GP) is recognized as a valuable source of polyphenols, prompting research into new therapeutic molecules while enhancing this by-product value. To address low stability and bioavailability issues of phenolic compounds, lamellar solids emerge as a promising approach for their loading and stabilization in food, cosmetic, and pharmaceutical applications. A solid phase adsorption procedure was developed here by comparing the properties of eight solids towards GP polyphenols.
View Article and Find Full Text PDFStrong, ductile, and hierarchical hetero-lamellar-structured alloys through microstructural inheritance and refinement.
Proc Natl Acad Sci U S A
January 2025
Department of Materials Science and Engineering, Hong Kong Institute for Advanced Study, City University of Hong Kong, Hong Kong, China.
The strength-ductility trade-off exists ubiquitously, especially in brittle intermetallic-containing multiple principal element alloys (MPEAs), where the intermetallic phases often induce premature failure leading to severe ductility reduction. Hierarchical heterogeneities represent a promising microstructural solution to achieve simultaneous strength-ductility enhancement. However, it remains fundamentally challenging to tailor hierarchical heterostructures using conventional methods, which often rely on costly and time-consuming processing.
View Article and Find Full Text PDFCrystal Lattice Analysis for 2D Nanomorphology Prediction of Phase-Separated Materials.
J Am Chem Soc
January 2025
Institute for Complex Molecular Systems, Eindhoven University of Technology, 5600MB Eindhoven, The Netherlands.
Spontaneous phase separation of materials is a powerful strategy to generate highly defined 2D nanomorphologies with novel properties and functions. Exemplary are such morphologies in block copolymers or amphiphilic systems, whose formation can be well predicted based on parameters such as volume fraction and shape factor. In contrast, the formation of 2D nanomorphologies is currently unpredictable in materials perfectly defined at the molecular level, in which crystallinity plays a significant role.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!