132 datasets found

Surfactant-silica self-assembly processes have been extensively studied since the discovery of M41S mesoporous materials in 1992. Mesoporous silicate films can be grown from...

The strong interaction between polyelectrolytes and ionic surfactants can result in pronounced surface adsorption and the formation of surface multilayer structures. This...

There are two contributions to the rms roughness of a polymer-polymer interface; i) the so-called ¿intrinsic interfacial width¿ due to mixing of the polymers at a molecular...

The aim of this experiment is to study the nucleation and molecular layer-by-layer growth of a 'thin film' (TF) phase at the buried substrate interface of thin films of fully...

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....

For polymer vesicles to act as effective molecular delivery systems we must efficiently encapsulate a molecular payload within the vesicle. We would like to use neutron...

This proposal is about the development of sustainable detergency based formulations, based on the blending of biosurfactants and conventional surfactants, and is part of a CASE...

As part of a wider study we are investigating the effects of polymer architecture between cyclic and linear polymers. From ATR-FTIR measurements we observe clear differences...

This proposal presents a comparative study of the adsorption of three key chemical groups onto an important technological substrate, viz. fatty acid salt (Sodium hexanoate),...

One class of bioactive lipopeptides produced by Bacillus subtilis, fengycin, has strong surfaceactivity and interesting antifungal property with low hemolytic activityTo gain...

Conjugated organic semiconductors form an exciting class of materials that can be used in a variety of cutting edge technologies including organic light-emitting diodes (OLED),...

In a recent SURF experiment on the formation of silica films templated with cat-anionic/polymer complexes we found that the film growth and evolution occurs on a faster time...

In our previous experiment we determined a value for the interfacial width of bare hexadecane-water interface. The NR-determined width was 6.0 ± 1.0 Å, which compares well with...

Hydrophobins are small compact secreted fungal proteins which are strongly surface active and adhere to both hydrophobic and hydrophilic surfaces. Their strong surface activity...

Summary: Titanium implants are surgically important and require a hydrophilic polymer coating to prevent biofouling in situ. Bioadhesive proteins can be covalently tethered to...

We will use time-resolved specular neutron reflectivity measurements to follow the in-situ growth of polymer brushes by surface-initiated ATRP. This will enable us to determine...

The aim is to establish the nature of the surface layer of 8CB at the nematic-air interface by measuring neutron reflection from the n=8, 10 and 12 homologues of the nCB series...

The crystallisation of membrane proteins is of great interest, not least, to the pharmaceutical industry. We have recently begun a project aiming to investigate the role played...

The spontaneous formation of multilayer structures at interfaces from surfactant self-assembly has until recently been rarely observed. However, surface multilayer structures...

In a recent EPSRC / Unilever / Oxford CASE project we have used NR to explore and develop optimised delivery mechanism for active benefit agents such as perfumes. In particular...