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  • 1
    Electronic Resource
    Electronic Resource
    Molecular organization in the liquid-crystalline phases of lecithin-sodium cholate-water systems studied by nuclear magnetic resonance (1982)
    s.l. : American Chemical Society
    Biochemistry 21 (1982), S. 1553-1560 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00536a014
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  • 2
    Electronic Resource
    Electronic Resource
    Microemulsions with nonionic surfactants. 1. Diffusion process of oil molecules (1988)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 92 (1988), S. 6675-6679 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100334a037
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  • 3
    Electronic Resource
    Electronic Resource
    Catanionic amphiphilic layers: a Monte Carlo simulation study of surface forces (1993)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 97 (1993), S. 5654-5660 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100123a032
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  • 4
    Electronic Resource
    Electronic Resource
    Comment on the self-diffusion in L3 and other bicontinuous surfactant solutions (1993)
    s.l. : American Chemical Society
    Langmuir 9 (1993), S. 625-626 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00026a045
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  • 5
    Electronic Resource
    Electronic Resource
    Self-diffusion of small molecules in colloidal systems (1986)
    Springer
    Colloid & polymer science 264 (1986), S. 77-88 
    Details
    ISSN: 1435-1536
    Keywords: Self-diffusion ; obstruction factor irreversible processes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The self-diffusion of small molecules in colloidal systems is calculated using the cell model to describe the effect of varying concentration of colloidal particles. The relevant boundary conditions are found using arguments from the thermodynamics of irreversible processes. From a general description of the self-diffusion in systems with spherically symmetrical particles we derive expressions for the concentration dependence of the effective self-diffusion coefficientD eff for several cases of practical importance. It is shown that when the molecule studied is strongly attracted to the particle a minimum inD eff is expected around volume fractionΦ=0.35. It is also shown that the often made distinction between free and bound molecules is often problematic and a more general description is proposed. The obstruction effect generated by the excluded volume is discussed both for spherical and spheroidal systems. It is pointed out that the often used formula due to Wang ((1954) J Amer Chem Soc 76:4755) is incorrect for self-diffusion and for the obstruction factor for spheres we obtain (1+0.5Φ)−1. This expresion is tested both by experiments on water diffusion in systems containing latex particles and through computer simulations and it is found valid over a wide concentration range. For prolate ellipsoids the obstruction factor is not greatly different from that for spheres, while for oblate aggregates the limiting obstruction factor of 2/3 can be obtained at low concentrations. It is demonstrated that this effect can be used to distinguish between different aggregate shapes. It is also shown that the disorder present in a solution of colloidal particles leads to a decrease in the obstruction effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01410310
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  • 6
    Electronic Resource
    Electronic Resource
    Hydration in electrical double layers (1997)
    [s.l.] : Nature Publishing Group
    Nature 385 (1997), S. 690-690 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Israelachvili and Wennerstrom reply - Marcelja's theoretical analysis is an important development in our understanding of the electrostatic interactions between charged surfaces in aqueous electrolyte solutions. The analysis supports our recent suggestion5 that monotonically repulsive 'hydration ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/385690a0
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  • 7
    Electronic Resource
    Electronic Resource
    Obituary (1994)
    Springer
    Colloid & polymer science 272 (1994), S. 1642-1642 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00664734
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  • 8
    Electronic Resource
    Electronic Resource
    Microemulsions in amphiphilic and polymer-surfactant systems (1996)
    Springer
    Colloid & polymer science 274 (1996), S. 297-308 
    Details
    ISSN: 1435-1536
    Keywords: Microemulsions ; polymers ; phase behavior ; osmotic stress
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Microemulsions may have very different microstructures: discrete water or oil droplets and bicontinuous — depending, inter alia, on the surfactant polarity, salinity, temperature, and co-surfactant. A review is given on structure determination of microemulsions of different systems and the conditions for occurrence of different structures. Polymer addition may dramatically influence microemulsion stability and structure and examples are given for different types of polymers and discussed on the basis of mixed solutions of polymers and surfactants in general.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00654050
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  • 9
    Electronic Resource
    Electronic Resource
    The swelling of lamellar phases in oil: The role of double layer interactions (1987)
    Springer
    Colloid & polymer science 74 (1987), S. 31-37 
    Details
    ISSN: 1435-1536
    Keywords: Double layer interaction ; swelling ; lamellar phase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The electrostatic contribution to the force across the apolar region in a lamellar liquid crystal is considered. For an ionic surfactant consisting of one small hydrophilic ion and one larger hydrophobic ion, a microscopic charge separation occurs. If the hydrophobic ion has a finite solubility in the apolar region a double layer force will be generated across the apolar region. It is shown that under realistic conditions this force can overcome the attractive van der Waals force and it is suggested that the extensive swelling of a lamellar phase in hydrocarbon, recently reported by Larché et al. [11] might be explained in terms of this double layer repulsion. It is also concluded that this type of double layer forces can be of important for the stability of microemulsions and water in oil emulsions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01191009
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  • 10
    Electronic Resource
    Electronic Resource
    Stable, metastable and unstable oil-in-water droplets (1997)
    Springer
    Colloid & polymer science 106 (1997), S. 6-13 
    Details
    ISSN: 1435-1536
    Keywords: Microemulsion ; hard sphere ; metastability ; nucleation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract In this paper we bring together some recent results concerning the stability and properties of O/W microemulsion droplets in a ternary system composed of water, decane and the nonionic surfactant pentaethylene glycol dodecylether (C12E5). Stable microemulsion droplets can be prepared when the spontaneous curvature has a finite but not too low value. Near the limit of maximum oil solubilisation the droplets adopt a spherical shape with low polydispersity. Experimental results obtained from low shear viscosity, collective and long time self-diffusion and static light scattering show that the spherical droplets interact to a very good approximation as hard spheres over a large range of volume fractions. A supersaturated microemulsion can be prepared by a rapid temperature quench (drop) into the two-phase area where a smaller droplet size coexists with excess oil. In the two-phase area, we can distinguish a region near the microemulsion phase boundary where the droplets are metastable, from a region further away from the boundary where the droplets are unstable and the oil-phase nucleates instantaneously. Treating the initial phase separation as a homogeneous nucleation it is possible to calculate an activation energy within the curvature energy approach.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01189484
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