Concept

Dispersion (chemistry)

Related publications (56)

Impact of virus aggregation on inactivation by peracetic acid and implications for other disinfectants

Tamar Kohn, Paolo Perona, Benoît Crouzy, Krista Rule Wigginton, Michael Jon Mattle, Moritz Brennecke

Viruses in wastewater and natural environments are often present as aggregates. The disinfectant dose required for their inactivation, however, is typically determined with dispersed viruses. This study investigates how aggregation affects virus inactivati ...

2011

Morphology of polymer/clay latex particles synthesized by miniemulsion polymerization: Modeling and experimental results

John Christopher Plummer

BA/MMA (90:10 wt.-%) were copolymerized in the presence of two different organomodified clays (C30B and CMA16) and 1.6-2.6wbm.-% surfactants. The effect of the compatibility of the organoclay in the monomer mixture on the morphology of hybrid polymer/clay ...

Wiley-Blackwell2010

Hydrogen bonding described using dispersion-corrected density functional theory

Ursula Röthlisberger, Jeremy Samuel Arey, I-Chun Lin

In recent works, dispersion-corrected atom-centered potentials (DCACPs) were developed as a method to account for long-range dispersion forces between molecules in density functional theory calculations within the generalized gradient approximation (GGA). ...

2009

Atom-centered potentials for describing London dispersion forces in density functional theory

I-Chun Lin

The Kohn-Sham formulation of density functional theory (DFT) has posed itself as one of the most popular and versatile methods for condensed phase studies owing to its reasonable accuracy and affordable computational cost. DFT, in principle, yields exact g ...

EPFL2008

Adsorption of Superplasticizers on a Model Powder

Paul Bowen, Yves Houst, François Perche

Adsorption isotherms of carboxylate type superplasticizers with different architectures have been measured on MgO considered as a non-reactive model powder. This system allowed us to study the influence of pH, electrolyte type, concentration and ionic stre ...

Conseil national de recherches du Canada2007

New insight into cataract formation: Enhanced stability through mutual attraction

Nicolas Dorsaz, Giuseppe Foffi

Small-angle neutron scattering experiments and molecular dynamics simulations combined with an application of concepts from soft matter physics to complex protein mixtures provide new insight into the stability of eye lens protein mixtures. Exploring this ...

2007

Interface-solvent effects during colloidal phase transitions

Sylvie Roke

We have compared calorimetric measurements with the nonlinear optical technique vibrational sum frequency scattering to investigate interface-solvent effects in colloidal gelation transitions. This allows us to explain the difference in gelation behaviour ...

2005

Correlating the rheological and mechanical response of polyurethane nanocomposites containing hyperbranched polymers

John Christopher Plummer, Marlene Rodlert

Cast polyurethane thermosets have been modified with randomly oriented exfoliated and intercalated montmorillonite clay usinghyperbranched polymers (HBP) as reactive additives to promote dispersion of the clay platelets. The influence of the clay content o ...

2005

Performance of optimized atom-centered potentials for weakly bonded systems using density functional theory

Ursula Röthlisberger, Ivano Tavernelli, Anatole von Lilienfeld

Recently, we have introduced a scheme for optimizing atom-based nonlocal external potentials within the framework of d. functional theory (DFT) in order to systematically improve the description of mol. properties [Phys. Rev. Lett. 93, 153004 (2004); J. Ch ...

2005

Microcavity arrays for X-ray diffraction studies of ordering phenomena in confined colloid solutions

Hairun Guo, Christian David

We present a way to fabricate high-aspect-ratio silicon microcavity arrays which can be used for the investigation of confinement-induced ordering phenomena within colloid solutions. In these studies, the microcavity arrays serve as containers for confinem ...

2005

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