Phospholipids as Emulsion Stabilizers

Kabalnov, Alexey; Tarara, Thomas E.; Arlauskas, Rebecca A.; Weers, Jeffry G.

doi:10.1006/jcis.1996.0615

Cited by 18 publications

(18 citation statements)

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“…In the Winsor III region, a small change in mean spontaneous curvature of the emulsion surface monolayer results in a rather sharp change in stability of the highly concentrated lipid particles (7). Penetration of core oils, n-hydrocarbons, n-perfluorocarbons, or soybean oil, into the surface PC monolayer has been shown to play important roles in the determination of the mean spontaneous curvature of surface layers and thereby, emulsion type, O/W or W/O (22). Medium chain TG, TC, penetrated into the surface layers more than the long chain one, TO, and led to a lower stability in the F-T process.…”

Section: Spontaneous Curvature Of Surface Lipid and Emulsion Coalescencementioning

confidence: 98%

“…The phase behavior of water-TG-PC mixtures is characterized as the Winsor III equilibrium (13,22): Lipid emulsion droplets coexist with PC vesicles (surfactant phase) in an aqueous medium. In the Winsor III region, a small change in mean spontaneous curvature of the emulsion surface monolayer results in a rather sharp change in stability of the highly concentrated lipid particles (7).…”

Section: Spontaneous Curvature Of Surface Lipid and Emulsion Coalescencementioning

confidence: 99%

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Coalescence of Lipid Emulsions in Floating and Freeze–Thawing Processes: Examination of the Coalescence Transition State Theory

Saito

Kawagishi

Tanaka

et al. 1999

Journal of Colloid and Interface Science

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Section: Spontaneous Curvature Of Surface Lipid and Emulsion Coalescencementioning

confidence: 98%

Section: Spontaneous Curvature Of Surface Lipid and Emulsion Coalescencementioning

confidence: 99%

Coalescence of Lipid Emulsions in Floating and Freeze–Thawing Processes: Examination of the Coalescence Transition State Theory

Saito

Kawagishi

Tanaka

et al. 1999

Journal of Colloid and Interface Science

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“…Phospholipids preferentially adsorb at the interface due to their amphiphilic property and satisfy molecular interactions in both phases. They decrease γ , provide high elasticity to the monolayer by dampening deformations, and thus increase LD emulsion stability 15, 16, 19 . For instance, in their presence, the surface tension of LDs can be reduced to the order of 0.1–1mN/m, compared with a exposed interface γ ~ 30mN/m 20 , providing LDs with kinetic stability under most conditions.…”

Section: Lipid Droplet Stability In Cellsmentioning

confidence: 99%

The biophysics and cell biology of lipid droplets

Thiam

Farese

Walther

2013

Nat Rev Mol Cell Biol

831

764

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Lipid droplets (LDs) are intracellular organelles that are found in most cells, where they have fundamental and dynamic roles in metabolism. Recent investigations showed the importance of basic biophysical principles of emulsions for LD biology. At their essence, LDs are the dispersed phase of an oil-in-water emulsion in the aqueous cytosol of cells. They function prominently in storing oil-based reserves of metabolic energy and components of membrane lipids. Because of their unique architecture, with an interface between the dispersed oil phase and the aqueous cytosol, LDs require specialized mechanisms for their formation, growth, and shrinkage. Such mechanisms enable cells to use emulsified oil in a controlled manner (e.g., when demands for metabolic energy or membrane synthesis increase). Regulation of the composition of the phospholipid surfactants at the LD surface is crucial for LD growth and catabolism and also modifies protein targeting to LD surfaces. Here, we review new insights into the cell biology of LDs, with an emphasis on concepts of emulsion science and biophysics that apply to this organelle.

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“…Once the polymerization was initiated, PNIPAM components in the water droplets showed hydrophobicity at this high temperature. Emulsifier (span 80) that adsorbed on the surface of the water droplets would detach, which led to instability of the emulsion system [38]. In order to solve these problems, TEMED was introduced into our polymerization system to initiate the polymerization at room temperature (25°C), which was lower than LCST of PNIPAM.…”

Section: Resultsmentioning

confidence: 99%