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The structure of particle stabilised foams
Many formulated products pass through or end up as foams, comprising immiscible millimeter sized bubbles dispersed into an aqueous continuous phase. Frequently, surfactants or... -
Multilayering of Methyl Ester Sulphonates at the Air-Aqueous Interface: Effec...
Surfactants usually form a single layer of molecules at the surface of water. We have shown that under certain conditions more than one layer may form. When this happens the... -
Competitive adsorption of a Biosurfactant conventional surfactant mixture at ...
We propose to study the competitive adsorption of a biosurfactant conventional surfactant mixture at the surface of an emulsion droplet in order to determine how these two... -
Competitive adsorption in hydrophobin / protein mixtures at the solid-solutio...
Hydrophobins are secreted fungal proteins in the form of small lipopetide biosurfactants. They are strongly surface active and self-assemble at interfaces and in solution. This... -
Surface structure of ethoxylated PEI/SDS mixtures: optimising surface properties
The strong interaction between polyelectrolytes and ionic surfactants can result in pronounced surface adsorption and the formation of surface multilayer structures. This... -
Solubilisation of Drug Molecules in Nonionic Surfactant Micelles: Structural ...
This proposal aims to understand how the structure of non-ionic surfactant micelles affects the amount of fungicides solubilised. SANS is a technique unique for unravelling the... -
Understanding the decrease in adsorption of surfactants at a solid surface ab...
Previous data obtained from neutron reflection shown in Figure 1 has clearly shown that the surface excess of some surfactants when adsorbed from aqueous solution to a sapphire... -
Solution aggregation of short peptide amphiphiles
Short peptide sequences consisting of hydrophobic and hydrophilic amino acid units are capable of self-assembly to lead to interfacial adsorption and solution nano-aggregation.... -
Investigation of excitonic physics in polycyclic aromatic hydrocarbon molecules
The MuSES project currently ongoing in the HiFi spectrometer gives unique opportunity in the field of photochemistry and photophysics of organic molecules. After two successful... -
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... -
AGGREGATION BEHAVIOUR OF A NOVEL P-AOT SURFACTANT
This proposal aims to provide essential surfactant micellisation structural information of significant interest in its own right but also as key information for our on-going... -
Effect of calcium ions and ionic strength on model bilayer structure
Calcium ions have been shown in a preliminary experiment to have a dramatic effect on the thickness and structure of free supported bilayer films. In this proposal we... -
Surface properties of biogenic polyamine-surfactant mixtures
Polyions and biogenic polyamine are ubiquitous in many important biochemical functions. We propose here to use neutron reflectivity to investigate their potential to induce and... -
Ion mediated surfactant adsorption on cellulose films
In recent work with Unilever we have been investigating the structure of gels formed by partially oxidised cellulose nanofibrils for use in sustainable personal care products.... -
Co-adsorption and competitive adsorption of eggshell membrane polypeptide aga...
In this work we explore how to use neutron reflection to study the interfacial adsorption from a natural eggshell membrane polypeptide at the oil/water interface. We will then... -
Understanding the nature of perfume / surfactant interactions at interfaces
This proposal is part of a funded (CASE) project, aimed at understanding the delivery of benefit actives (perfumes) to interfaces and the development of new self-assembled... -
Surfactant and Polymer Adsorption on Pyrite Thin Films
Pyrite (FeS2) is a hydrophobic mineral surface, i.e. of a type thus far inaccessible to the types of aqueous adsorption experiments suitable for study by reflectometry (NR), but... -
Structure of chain-grafted silica nanoparticles
The aim of the proposed experiment is to carry out a series of SANS measurements on chain-grafted silica nanoparticles prepared in our laboratory. In this experiment we plan to... -
Structure of Cellulose Nanofibril Gels
This proposal is part of a new project based on understanding the formation of gels in suspensions of partially oxidised cellulose nanofibrils with small amounts of salt or... -
Interaction of lignosulphonates with model surfactant systems by neutron refl...
With the biobased economy growing substantially and pressure to reduce reliance on palm and crude oil derived materials, it is vital that the Home and Personal Care industry...