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Surface activity of antibacterial agents
This proposal is aimed at understanding the surface activity of the antibacterial agent, Triclosan, in the presence of surfactants. We request NR beam time on SURF to... -
Interfacial layer structure of designed lipopeptides at the solid/water inter...
Lipopeptide surfactants are a group of interesting biosurfactants due to their natural origin and their high effectiveness at reducing interfacial tension. However, there is a... -
Evolution of complex surface structures in LAS / nonionic surfactant mixtures
This proposal is part of a broad programme of collaborative research between RAL / Oxford and Unilever, using predominantly scattering techniques to investigate the nature of... -
The impact of polyelectrolytes on surfactant adsorption onto cellulose surfaces
Studying surfactant and mixed surfactant adsorption on model solid surfaces, which mimic real surfaces such as fabrics, hair and skin, is starting to provide a real insight into... -
Solution Aggregation of Short Peptide Amphiphiles
Short peptide sequences consisting of hydrophobic and hydrophilic amino acid units are capable of self-assembly, leading interfacial adsorption and solution nano-aggregation.... -
Interfacial layer structure of lipopeptides adsorbed at the air/water interface
Lipopeptide surfactants are a group of interesting biosurfactants due to their natural origin and their high effectiveness at reducing interfacial tension. However, there is a... -
Interaction of polypeptide with surfactant on the surface of water
This proposal constitutes part of our ongoing study towards understanding the adsorption of collagen based polypeptide and its interaction with ionic surfactants at the... -
Can surfactants be pushed out of polymer layers by applying compression?
For many applications such as paints, foods and drug formulations, aggregation of colloidal particles is prevented by combining polymer and surfactant adsorption. Key to this... -
Surfactant Segregation in Plasticised PVA
PVA film is widely used as a non-toxic water soluble polymer. This proposal relates to its use in unit dose detergent pouches where plasticised PVA film stores a concentrated... -
Interaction of keratin with surfactants studied by SANS
This proposal constitutes part of our ongoing study towards understanding how keratin, an important protein component of hair and skin, interacts with ionic surfactants using... -
Polymer conjugates for drug delivery
Complex polymer architectures such as comb polymers have been studied for their highly customisable chemical properties. Potential applications have been identified in a wide... -
Location of the lipophilic drug testosterone propionate at the oil-water inte...
Solubilisation of poorly-water soluble drug in surfactant micelles is an attractive means of increasing the apparent aqueous solubility of such drugs in order to administer the... -
D2O Vapour Diffusion at the Air Water Interface
A theoretical estimate of the H/D exchange rate for an open trough (e.g. D2O in ambient atmosphere, 50% relative humidity) yields an amount of exchanged liquid of the order of... -
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... -
Interfacial conformation of antibody and antigen binding capacity
Antibody-antigen binding has been extensively used in many technological applications such as immunoassays, chemical analysis and bionanotechnology. The crucial element... -
interaction of a pharmaceutical water-soluble polymer with bio-relevant surfa...
We have been developing hydroxypropylmethyl cellulose (HPMC) microspheres for delivering poorly water-soluble drugs. The in vitro dissolution data showed that the presence of... -
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.... -
Ibuprofen containing surfactant monolayers: location and stiochiometry of ibu...
An increasing number of potential drug molecules are extremely water insoluble, limiting their commercialisation as medicines. Solubilisation of drug in surfactant micelles is a... -
Interfacial structures and competitive adsorption of amphiphilic millipede po...
Foam stability, appearance and functionality is governed by the thin liquid films between foam bubbles. These films are stabilised by surface active molecules (surfactants and... -
Modification of an adsorbed cationic layer by anionic surfactants below the CMC
In this proposal, we request beamtime to study the unexpected behaviour of a strongly bound bilayer of the cationic surfactant didodecyldimethylammonium bromide on the anionic...
