42 datasets found

This proposal is part of a new project which is a collaboration between Oxford, Newcastle, Ulster, and Unilever on the development of sustainable laundry detergents, using...

Surfactants usually form a single layer of molecules at the surface of water. We have shown, surprisingly, that under certain conditions more than one layer may form. When this...

Cuticular wax films protect plants by mediating water and nutrient transport from the environment. Surfactant is a key ingredient in agrisprays that can promote the uptake of...

We wish to understand how the concentration of surfactant mixtures in solution affects adsorption at lower temperatures; in particular, we wish to see how the composition of the...

Perfluoroalkyl substances (PFASs) are fully fluorinated, stabile, and surface-active compounds. They contain both a hydrophobic fluorinated carbon chain and an ionizable...

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...

Although surfactant detergency is well understood above 30 C, actions of surfactants below 30 C are not well established. In the era of energy saving and environment caring, we...

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...

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...

Photorheological (PR) fluids are the fluids with light-tunable rheological properties and are very useful in a variety of applications. Cetyl trimethylammonium bromide (CTAB)...

We have engaged in a long term effort to build accurate bio-mimetic systems for complex structural biology studies. Recently, we have found that thiolalkylamidealcohol...

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...

Titanium dioxide (TiO2) is used in a wide range of applications from medical and dental implants to treatment of contaminated air and water streams. However many of the...

The aim is to measure the preferential adsorption of one component in a nematic mixture. The base is 4-pentyl 4¿- cyanobiphenyl (5CB) and it is doped with 4-pentyl 4¿-...

The fabrication of composite coatings based on silica with well defined physical properties represents a promising new approach to fine-tune mechanical, optical, electronic, and...

We have previously used LOQ to identify the complex (polyplex) structures formed between a short single strand DNA and a cationic diblock copolymer MPC30-DEA60. The SANS...

Major technological and scientific challenges arise from the pressure to provide widely available and sustainable technologies for the societal requirements for health and a...

An eggshell membrane polypeptide is highly surface active and effective at emulsion stabilization. We explore how to use SANS to study the interfacial layers surrounding the...

We have synthesised alkyl phosphorylcholine (CnPC) surfactants in hydrogenated and deuterated form and have determined their solution aggregation using SANS. In this part of...

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....