Comas-Rojas, H., Fernandez-Cata, G., Edler, K. J., Roser, S. J., Perez-Gramatges, A.
Dilute mixtures of the water soluble polymer polyethyleneimine (PEI) and the cationic surfactant cetyltrimethylammonium bromide (CTAB) form mesostructured thin films at the air/solution interface. In...
Comas-Rojas, H., Fernandez-Cata, G., Edler, K. J., Roser, S. J., Perez-Gramatges, A.
Dilute mixtures of the water soluble polymer polyethylleneimine (PEI) and the cationic surfactant cetyltrimethylammonium bromide (CTAB) form mesostructured thin films at the air/solution interface....
Qi, S., Roser, S. J., Deutsch, D., Barker, S. A., Craig, D. Q. M.
Fatty acid microspheres have been used for taste masking purposes whereby the drug is preferentially released in the lower gastrointestinal tract, although the mechanisms involved are poorly...
Phenyl-functionalised mesoporous silica films (2008)
O'Driscoll, B. M. D., Hawley, A. M., Roser, S. J., Edler, K. J.
Spontaneously forming phenyl-functionalised mesoporous silica films were produced using a co-condensation method. The films were examined using neutron reflectometry and Brewster angle microscopy,...
Floating lipid bilayers deposited on chemically grafted phosphatidylcholine surfaces (2008)
Hughes, A. V., Howse, J. R., Dabkowska, A., Jones, R. A. L., Lawrence, M. J., Roser, S. J.
Floating supported bilayers (FSBs) are new systems which have emerged over the past few years to produce supported membrane mimics, where the bilayers remain associated with the substrate, but are...
Evolution of non-ionic surfactant-templated silicate films at the air-liquid interface (2008)
Fernandez-Martin, C., Roser, S. J., Edler, K. J.
Spontaneous growth of non-ionic surfactant-templated thin films at the air-water interface was investigated using three techniques: Brewster angle microscopy (BAM), time-resolved off-specular X-ray...
DNA adsorption at functionalized Si/buffer interfaces studied by x-ray reflectivity (2008)
Douarche, C., Cortes, R., De Villeneuve, C. H., Roser, S. J., Braslau, A.
The adsorption of DNA on chemically homogeneous, functionalized, oxide-free single-crystal silicon surfaces is studied by x-ray reflectivity. The adsorption of monodisperse, 294 base-pair...
DNA Adsorption at Liquid/Solid Interfaces (2008)
Douarche, C., Cortes, R., Roser, S.J., Sikorav, J. L., Braslau, A.
DNA adsorption on solid or liquid surfaces is a topic of broad fundamental and applied interest. Here, we study by X-ray reflectivity the adsorption of monodisperse double-stranded DNA molecules on a...
Structure and stability of DPPE planar bilayers (2007)
Stidder, B., Fragneto, G., Roser, S. J.
Biomembrane mimics in the form of supported planar bilayers allow the application of a wide range of surface and interface analytical techniques. The structure and phase-behavior of single and double...
O'Driscoll, B. M. D., Fernandez-Martin, C., Wilson, R. D., Knott, J., Roser, S. J., Edler, K. J.
Mesostructured films of alkyltrimethylammonium bromides or cetylpyridinium bromide and polyethylenimines that spontaneously self-assemble at the air/water interface have been examined using a range...
Comas-Rojas, H., Aluicio-Sarduy, E., Rodriguez-Calvo, S., Perez-Gramatges, A., Roser, S. J., Edler, K. J.
The interactions involved in aqueous mixtures of polyethyleneimine (PEI) and cetyltrimethylammonium bromide ( CTAB) were studied under dilute conditions. The phase diagram of this polyelectrolyte -...
Effect of micelle composition on the formation of surfactant-templated polymer films (2006)
O'Driscoll, B. M. D., Fernandez-Martin, C., Wilson, R. D., Roser, S. J., Edler, K. J.
Surfactant-templated polymer films prepared from polyethylenimine (PEI), cetyltrimethylammonium bromide (CTAB), and octaethylene glycol monohexadecyl ether (C16E8) were examined and the effect of...
Formation of mesostructured thin films at the air/water interface (2006)
Edler, K. J., Brennan, T., Roser, S. J.
Mesostructured thin films are known to form at the interface between either air or a solid surface. and a dilute acidic solution containing the silica precursor, and surfactant template. These films...
Thin films of polyethylenimine and alkyltrimethylammonium bromides at the air/water interface (2005)
O'Driscoll, B M D, Milsom, E, Fernandez-Martin, C, White, L, Roser, S J, Edler, K J
Effect of low amounts of cholesterol on the swelling behavior of floating bilayers (2005)
Stidder, B., Fragneto, G., Roser, S. J.
The effect of the addition of 1, 2,4, and 6 mol % cholesterol to 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) floating bilayers has been investigated by neutron reflectivity. All samples...
Stidder, B., Fragneto, G., Cubitt, R., Hughes, A. V., Roser, S. J.
The effect of the addition of 10 mol % cholesterol to 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) floating bilayers has been investigated by means of neutron reflectivity measurements. The...
Thin films of polyethylenimine and alkyltrimethylammonium bromides at the air/water interface (2005)
O'Driscoll, B. M. D., Milsom, E., Fernandez-Martin, C., White, L., Roser, S. J., Edler, K. J.
We have prepared and analyzed thin film structures formed by polyethylenimine and alkyltrimethylammonium bromide (C(n)TAB) surfactants at the air/water interface, using both surface and bulk...
Surface Engineering and Nanolithography with Organometallic Polymers (2004)
Vancso, G.J., Golze, S., Hempenius, M.A., Hillborg, H., Jenkins, A.T.A., Knoll, W., ...
Peter, M., Hempenius, M. A., Kooij, E. S., Jenkins, T. A., Roser, S. J., Knoll, W., ...
Poly(ferrocenyldimethylsilanes), composed of alternating ferrocene and dimethylsilane units in their main chain and featuring a thiol end group, were self-assembled to redox-active monolayers on...
Fernandez-Martin, C., Edler, K. J., Roser, S. J.
Off-specular X-ray reflectivity measurements were carried out to follow the in situ development of surfactant-templated silica thin films at the air-water interface under conditions of controlled...
Formation of mesophase surfactant-templated silica thin films from acidic solutions (2004)
Edler, K. J., Brennan, T., Fernandez-Martin, C., Roser, S. J.
The formation of mesophase silica-surfactant thin films at the air/solution interface has been studied in situ using off-specular X-ray reflectivity, Brewster angle microscopy and small angle...
Surface engineering and nano-lithography with organometallic polymers (2003)
Vancso, G. J., Golze, S., Hempenius, M. A., Hillborg, H., Jenkins, T. A., Knoll, W., ...
Spontaneous free-standing nanostructured film growth in polyelectrolyte-surfactant systems (2003)
Edler, K. J., Goldar, A., Brennan, T., Roser, S. J.
Substitution of a polyelectrolyte for silica during formation of surfactant-templated films produces similar nano- and macroscale structures confirming that silica acts as a polyelectrolyte during...
Formation of CTAB-templated mesophase silicate films from acidic solutions (2003)
Edler, K. J., Brennan, T., Roser, S. J., Mann, S., Richardson, R. M.
We have examined the effect of the different components in the spontaneous formation of surfactant-templated mesostructured silicate films grown at the air/solution interface. The rate of film...
Brennan, T., Roser, S. J., Mann, S., Edler, K. J.
Grazing incidence X-ray diffraction (GIXD) and X-ray reflectivity have been used in situ to study the structure of surfactant-templated silica films grown at the air/water interface at different...
Phase behavior of DMPC free supported bilayers studied by neutron reflectivity (2002)
Hughes, A V, Roser, S J, Gerstenberg, M, Goldar, A, Stidder, B, Feidenhans'l, R, ...
Phase behavior of DMPC free supported bilayers studied by neutron reflectivity (2002)
Hughes, A. V., Roser, S. J., Gerstenberg, M., Goldar, A., Stidder, B., Feidenhans'l, R., ...
The phase behavior of a supported dimyristoylphosphatidylcholine (DMPC) bilayer system has been investigated using neutron reflectivity. The bilayer is fabricated by a combination of...
A hybrid SAM phospholipid approach to fabricating a free supported lipid bilayer (2002)
Hughes, A. V., Goldar, A., Gerstenberg, M. C., Roser, S. J., Bradshaw, J.
Using a combination of self assembly, Langmuir-Blodgett and Langmuir-Schaeffer techniques, we have produced a multilayered film of dimyristoylphosphatidylcholine ( DMPC) intended for use as a...
Brennan, T., Roser, S. J., Mann, S., Edler, K. J.
Time-resolved small-angle neutron scattering has been used to investigate the evolution of micelles in the subphase of surfactant-templated silica film-forming solutions. Two samples have been...
Concentration-dependent formation mechanisms in mesophase silica-surfactant films (2002)
Brennan, T., Hughes, A. V., Roser, S. J., Mann, S., Edler, K. J.
The development of surfactant-templated mesoporous films grown at the air/water interface was investigated using specular and off-specular X-ray reflectivity techniques. The samples were prepared in...
Goldar, A., Roser, S. J., Caruana, D., Gerstenberg, M. C., Hughes, A. V., Edler, K. J.
We study the electrochemical roughening of a silicon electrode surface during the hydrogen evolution reaction in a fluoride electrolyte using neutron reflection. We demonstrate that as the roughening...
Growth and characterization of mesoporous silica films (2001)
The synthesis of surfactant-templated silicate materials has developed rapidly over the past decade. The uniform controlled pore sizes created in the amorphous silicate framework by this method show...
Structural studies on surfactant-templated silica films grown at the air/water interface (2001)
Edler, K. J., Goldar, A., Hughes, A. V., Roser, S. J., Mann, S.
In situ characterisation of a growing surfactant-templated silica film has been carried out by X-ray reflectivity, diffuse X-ray scattering from the surface. Brewster angle microscopy and surface...
The effect of dipping rate on alternating layer Langmuir-Blodgett film structure (1990)
Grundy, M J, Musgrove, R J, Richardson, R M, Roser, S J, Penfold, J
X-ray and neutron scattering from spread monolayers and LB films (1988)
Dent, N, Grundy, M J, Richardson, R M, Roser, S J, McKeown, N B, Cook, M J