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Opening up microemulsion phases in CO2
New types of water-in-CO2 microemulsions using mixed surfactant systems will be investigated by high-pressure SANS (HP-SANS). Exciting new results (see report on RB820030) have... -
How do colloidal nanocrystals appear to biological systems? A SANS study of t...
A key aspect of any biological application of nanomaterials is to understand what happens when they are introduced into biological environments. When particles are introduced... -
Micellar modifiers for CO2
This proposal focuses on a new approach to the formation of rod-like micelles in supercritical CO2 (scCO2). Recent successful high-pressure SANS (HP-SANS) results have shown for... -
A structural evolution: hydrotrope-alkyl hydrotrope-surfactant
The aim of the proposal is to improve understanding about combinations of normal surfactants and hydrotropes. The systems of study are reference oil-water interfaces, provided... -
Mixed surfactants for dialable organogels
The idea is to be able to ¿dial-up¿ the length and properties of CO2-philic and organo-philic rod-like micelles. This proposal aims to explore mixed surfactant systems in... -
Search for magnetic domains in frustrated magnet CaFe2O4
We propose to study the temperature dependence of the size and shape of the magnetic domains believed to exist in CaFe2O4 - a frustrated triangular antiferromagnet. Our diffuse... -
Dispersed lamellar phases in dense CO2
This proposal aims to explore these dispersed lamellar phases with a variety of F7H4 derivatives,to help understand their formation in supercritical CO2 (sc-CO2). The focus is... -
Kinetic Study of the Mechanistic Complexation Process Between DNA and Cationi...
We propose to use the new SANS2d to study the dynamic structural evolution in the couse of the formation of DNA-cationic polymer complexes. The dynamic process and the mixing... -
AOT stabilized aqueous ferrofluids
The aim of the experiment is to employ SANS to study the physical properties of a novel and very stable aqueous Fe3O4 ferrofluid system stabilized by the commercially available... -
Nonfluorous Cosurfactant/Hyperbranched Surfactant Mixtures for W/CO2 Microemu...
This proposal aims to explore cheap and environmental-benign cosurfactants (or cosolvents) for yielding CO2-philic hydrocarbon surfactant/water/CO2 microemulsions (W/CO2... -
Surfactant ionic liquids as tuneable structured media
This proposal aims to explore aqueous phase structures of a new range of ionic liquid surfactants (IL-surfs). These IL-surfs have interesting potential applications as reaction... -
Concentrated emulsions as proxy CO2 thickeners
The proposal aims to explore the oil-in-water (brine) high internal phase emulsion systems (HIPEs) formed by nonylphenol ethoxylate surfactants using contrast variation SANS... -
Mixed surfactants for positive synergism in dense CO2
This proposal aims to explore a cheaper and more environmental-benign surfactant system for yielding efficient water/CO2 microemulsions. The new surfactants permit high...
