-
The Formation of Ion Channels in Phospholipid Bilayers by Puroindoline-a
Puroindolines are basic, cysteine rich proteins of ~13KDa, which have attracted significant interest due to their role in determining the endosperm texture of Wheat and seed... -
Swelling of Single Supported Bilayers ¿ First Systematic Investigation of the...
This proposal addresses bilayer swelling experiements on floating supported bilayers (FSBs) in the presence of biological buffers. Previous work on multilamellar vesicles has... -
Further Studies on the Gating Mechanism of an Antimicrobial Peptide Using Con...
Antibiotic peptides are generally small, simple, usually alpha-helical peptides, which nevertheless show quite complex biological behaviour. We have been studying the gating... -
The Mechanism and Kinetics of Lipid Flip-Flop in Floating Phosphatidylcholine...
In order to maintain their asymmetric lipid distribution, cellular membranes have a number of means to translocate lipid molecules across the bilayer. On top of the well-studied... -
Conformational analysis of subtilin / lipid II binary antibiotic/target membr...
We propose to use neutron reflection to characterise the position and shape of subtilin/lipid II pore complexes as well as to characterise the kinetics of subtilin-lipid II and... -
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... -
Bilayer modification and charge screening by simple ions
Calcium ions have been shown in a preliminary experiment to have a dramatic effect on the thickness and structure of free supported DPPC bilayer films. At low concentrations... -
Planar bilayer formation on novel cationic surface suitable for membrane prot...
Membrane receptor proteins (MRPs) which are thought to represent the majority of drug targets are challenging to study as their structure and function is dependent on being... -
The interaction of Plant Defensins with Model Lipid Membranes : Understanding...
Plants do not have the sophisticated immunoglobulin immune systems of vertibrates, instead they posses a series of stimuli based responses which defend against pathogentic... -
Model biomembrane dendrimer interactions
The objective of the present study is to investigate the interaction between PAMAM dendrimers and solid supported model biomembranes of high fluidity. These membranes consist of... -
Understanding the Affect of Lipid Tail Saturation on Anaesthetic Interaction ...
The mechanism of general anaesthetic action is poorly understood despite their widespread use. It is hoped that investigating the interaction of anaesthetics with lipid bilayers... -
Antimicrobial Peptide Binding & Rearrangement in Model Membranes ¿ Building a...
Antimicrobial peptides (AMPs) are attractive drug candidates because of their selectivity and speed of action against bacteria. We have developed a novel approach to delivering... -
Neutron Reflectivity study of lipopolysaccharide complexes with lateral domai...
We propose to investigate the role of lateral phase separation on LPS insertion into model membranes and the effects of target membrane structure and composition. A comparison... -
Floating Bilayers Deposited on Au / Fe Surfaces
There is currly great interest in the use of neutron reflection to study model bilayers. We have produced a model membrane system that is strongly associated with the substrate,... -
Selective recruitment of cholesterol to lipid rafts by multivalent protein bi...
Lipid raft microdomains offer a means to enhance the local concentration of membrane components as well as serve as a platform for raft associated endocytosis. Driven by... -
Structure and thermodynamics of polyethylene glycol chusions
A long term goal for biophysical studies has been to fabricate bio-membranes on solid supports. A highly hydrated ¿cushion¿ between the membrane and the underlying support can... -
Head Group charging and anaesthetic Interaction with Model Bilayers
The mechanism of general anaesthetic action is poorly understood despite their widespread use. It is hoped that investigating the interaction of anaesthetics with lipid bilayers... -
Calcium mediated interaction between siRNA and phospholipid bilayers: the eff...
The main objective of the present study is to gain an understanding of the nature of the interaction of ¿phospholipid membranes¿ with small, interfering RNA (siRNA) in the... -
The Kinetics of Ethanol Adsorption into Cholesterol Rich Bilayers
In a recent experiment carried out on SURF we have shown that on addition of ethanol to a DPPC model membrane, the anaesthetic initially diffuses to the bilayer surface followed... -
Purothionins Perturb Bacterial Membrane Function via Ion Channel Formation
Purothionins are a family of cationic cystiene rich plant defence proteins which have been shown to have a wide spectrum of activity due their ability to permeate cellular...