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Spectrophotometry of thin films of light absorbing particles (2017)
Journal Article
Binks, B. P., Fletcher, P. D., Johnson, A. J., Marinopoulos, I., Crowther, J. M., & Thompson, M. A. (2017). Spectrophotometry of thin films of light absorbing particles. Langmuir : the ACS journal of surfaces and colloids, 33(15), 3720-3730. doi:10.1021/acs.langmuir.6b04443

Thin films of dispersions of light absorbing solid particles or emulsions containing a light absorbing solute all have a non-uniform distribution of light absorbing species throughout the sample volume. This results in non-uniform light absorption ov... Read More

Evaporation of Sunscreen Films: How the UV Protection Properties Change (2016)
Journal Article
Fletcher, P. D., Fletcher, P. D. I., Binks, B. P., Johnson, A. J., Marinopoulos, I., Brown, J., …Thompson, M. A. (2016). Evaporation of Sunscreen Films: How the UV Protection Properties Change. ACS applied materials & interfaces, 8(21), (13270-13281). doi:10.1021/acsami.6b02696. ISSN 1944-8244

© 2016 American Chemical Society. We have investigated the evaporation of thin sunscreen films and how the light absorption and the derived sun protection factor (SPF) change. For films consisting of solutions of common UV filters in propylene glycol... Read More

A model study of enhanced oil recovery by flooding with aqueous surfactant solution and comparison with theory (2015)
Journal Article
Fletcher, P. D. I., Savory, L. D., Woods, F., Clarke, A., & Howe, A. M. (2015). A model study of enhanced oil recovery by flooding with aqueous surfactant solution and comparison with theory. Langmuir : the ACS journal of surfaces and colloids, 31(10), 3076-3085. doi:10.1021/la5049612

With the aim of elucidating the details of enhanced oil recovery by surfactant solution flooding, we have determined the detailed behavior of model systems consisting of a packed column of calcium carbonate particles as the porous rock, n-decane as t... Read More

ABC triblock copolymer micelles: Spherical versus worm-like micelles depending on the preparation method (2015)
Journal Article
Ghasdian, N., Buzza, D. M. A., Fletcher, P. D. I., & Georgiou, T. K. (2015). ABC triblock copolymer micelles: Spherical versus worm-like micelles depending on the preparation method. Macromolecular rapid communications, 36(6), (528-532). doi:10.1002/marc.201400621. ISSN 1022-1336

Well-defined ABC triblock copolymers based on two hydrophilic blocks, A and C, and a hydrophobic block B are synthesized and their self-assembly behaviour is investigated. Interestingly, at the same solvent concentration, pH, and temperature, differe... Read More

Water-in-water emulsions based on incompatible polymers and stabilized by triblock copolymers-templated polymersomes (2013)
Journal Article
Buzza, D. M. A., Fletcher, P. D. I., Georgiou, T. K., & Ghasdian, N. (2013). Water-in-water emulsions based on incompatible polymers and stabilized by triblock copolymers-templated polymersomes. Langmuir : the ACS journal of surfaces and colloids, 29(48), 14804-14814. doi:10.1021/la403356j

Aqueous solutions containing a mixture of polyethylene glycol (PEG) and dextran homopolymers form an aqueous two-phase system which can be emulsified to give a water-in-water emulsion. We show how these emulsions can be stabilized using triblock poly... Read More

How membrane permeation is affected by donor delivery solvent (2012)
Journal Article
Binks, B. P., Fletcher, P. D., Johnson, A. J., & Elliott, R. P. (2012). How membrane permeation is affected by donor delivery solvent. Physical chemistry chemical physics : PCCP, 14(44), 15525-15538. doi:10.1039/c2cp42747h

We investigate theoretically and experimentally how the rate and extent of membrane permeation is affected by switching the donor delivery solvent from water to squalane for different permeants and membranes. In a model based on rate-limiting membran... Read More

Controlled silanization of silica nanoparticles to stabilize foams, climbing films, and liquid marbles (2011)
Journal Article
Fletcher, P. D. I., & Holt, B. L. (2011). Controlled silanization of silica nanoparticles to stabilize foams, climbing films, and liquid marbles. Langmuir : the ACS journal of surfaces and colloids, 27(21), (12869-12876). doi:10.1021/la2028725. ISSN 0743-7463

We describe a method for the synthesis of multigram amounts of silica nanoparticles which are controllably hydrophobized to different extents using a room temperature vapor phase silanization process. The extent of hydrophobization of the particles c... Read More

Effect of added diols (glycols) on the emulsion properties of oil, water and surfactant mixtures (2011)
Journal Article
Binks, B. P., Fletcher, P. D., Thompson, M. A., & Elliott, R. P. (2011). Effect of added diols (glycols) on the emulsion properties of oil, water and surfactant mixtures. Colloids and surfaces. A, Physicochemical and engineering aspects, 390(1-3), (67-73). doi:10.1016/j.colsurfa.2011.09.005. ISSN 0927-7757

We have investigated the effects of addition of various diols on the properties of water–paraffin emulsions stabilised by non-ionic surfactants. Diols do not partition to the oil phase of these emulsions to any significant extent. Diol addition... Read More

Compartmentalization and separation of aqueous reagents in the water droplets of water-in-oil high internal phase emulsions (2011)
Journal Article
Dunstan, T. S., & Fletcher, P. D. I. (2011). Compartmentalization and separation of aqueous reagents in the water droplets of water-in-oil high internal phase emulsions. Langmuir : the ACS journal of surfaces and colloids, 27(7), (3409-3415). doi:10.1021/la200058d. ISSN 0743-7463

We have compartmentalised aqueous reagents and indicator species within the micron-sized water droplets of mixed high internal phase emulsions (HIPEs). Mass transport of the reagents across the micron-thickness oil films separating the water droplets... Read More

Phase inversion of particle-stabilised perfume oil-water emulsions: experiment and theory (2010)
Journal Article
Binks, B. P., Fletcher, P. D. I., Holt, B. L., Beaussoubre, P., & Wong, K. (2010). Phase inversion of particle-stabilised perfume oil-water emulsions: experiment and theory. Physical chemistry chemical physics : PCCP, 12(38), (11954-11966). doi:10.1039/c0cp00558d. ISSN 1463-9076

Phase inversion of fumed silica particle-stabilised emulsions of water and perfume oil can be effected in three ways. The transitional inversion from water-in-oil (w/o) to oil-in-water (o/w) occurs upon increasing the particle hydrophilicity for 9 oi... Read More

Influence of nanoparticle addition to Winsor surfactant microemulsion systems (2010)
Journal Article
Binks, B., Fletcher, P., & Tian, L. (2010). Influence of nanoparticle addition to Winsor surfactant microemulsion systems. Colloids and surfaces. A, Physicochemical and engineering aspects, 363(1-3), (8-15). doi:10.1016/j.colsurfa.2010.03.045. ISSN 0927-7757

The influence of adding negatively charged silica nanoparticles to multiphase Winsor microemulsion systems of cationic surfactant/alcohol cosurfactant is reported. It is found that the particles do not change the salt-induced progression of Winsor sy... Read More

Non-aqueous foams in lubricating oil systems (2010)
Journal Article
Binks, B., Davies, C., Fletcher, P., & Sharp, E. (2010). Non-aqueous foams in lubricating oil systems. Colloids and surfaces. A, Physicochemical and engineering aspects, 360(1-3), (198-204). doi:10.1016/j.colsurfa.2010.02.028. ISSN 0927-7757

We have investigated the foaming properties of mixtures of a hydrocarbon oil solvent with various low molar mass, polymeric and overbased detergent particle additives used in lubricating oils. Foam formation occurs only when the additive concentratio... Read More

UV polymerisation of surfactants adsorbed at the nematic liquid crystal-water interface produces an optical response (2009)
Journal Article
Fletcher, P. D. I., Kang, N., & Paunov, V. N. (2009). UV polymerisation of surfactants adsorbed at the nematic liquid crystal-water interface produces an optical response. Chemphyschem, 10(17), (3046-3053). doi:10.1002/cphc.200900405. ISSN 1439-7641

We have investigated the changes in crossed polariser optical textures produced by adsorption and UV polymerisation of a range of polymerisable surfactants at the interface between a nematic liquid crystal and water. Similar to non-polymerisable surf... Read More

Synthesis of macroporous silica from solid-stabilised emulsion templates (2008)
Journal Article
Aranberri, I., Binks, B. P., Clint, J. H., & Fletcher, P. D. I. (2009). Synthesis of macroporous silica from solid-stabilised emulsion templates. Journal of Porous Materials, 16(4), (429-437). doi:10.1007/s10934-008-9215-x. ISSN 1380-2224

We have investigated the microstructures of the solid residue left behind after the evaporation of solid-stabilised emulsions. The correlation between the microstructure and the properties and preparation conditions of the emulsions will be thoroughl... Read More

Novel film-calliper method of measuring the contact angle of colloidal particles at liquid interfaces (2007)
Journal Article
Fletcher, P. D., Binks, B. P., Horozov, T. S., Braz, D. A., & Clint, J. H. (2008). Novel film-calliper method of measuring the contact angle of colloidal particles at liquid interfaces. Langmuir : the ACS journal of surfaces and colloids, 24(5), (1678-1681). doi:10.1021/la703414q. ISSN 0743-7463

A simple and reliable film-calliper method of measuring the particle contact angle at the water-air (oil) interface in real time has been developed. Its applicability to submicrometer and micrometer latex and silica particles is demonstrated.