A5013534739- Surfactants and Colloidal Systems
- Calcium Carbonate Crystallization and Inhibition
- Pickering emulsions and particle stabilization
- Proteins in Food Systems
- Liquid Crystal Research Advancements
- Crystallization and Solubility Studies
- Mesoporous Materials and Catalysis
- Cephalopods and Marine Biology
- Bone Tissue Engineering Materials
- Paleontology and Stratigraphy of Fossils
- NMR spectroscopy and applications
- Minerals Flotation and Separation Techniques
- Electrostatics and Colloid Interactions
- Material Dynamics and Properties
- Analytical Chemistry and Chromatography
- HIV Research and Treatment
- Lipid Membrane Structure and Behavior
- Advanced Polymer Synthesis and Characterization
- Radiation Therapy and Dosimetry
- Advanced Radiotherapy Techniques
- Food Chemistry and Fat Analysis
- Immunotherapy and Immune Responses
- Force Microscopy Techniques and Applications
- Astrophysics and Cosmic Phenomena
- Microfluidic and Bio-sensing Technologies
Dalhousie University
2024-2025
Saint Mary's University
2020
Victoria University of Wellington
2009-2019
MacDiarmid Institute for Advanced Materials and Nanotechnology
2009-2019
University of Technology Sydney
2019
Riddet Institute
2016-2017
Massey University
2015-2016
University of Otago
1998-2005
University of North Carolina at Chapel Hill
2000-2002
Nationwide Children's Hospital
2000
ABSTRACT Vaccine vectors derived from Venezuelan equine encephalitis virus (VEE) that expressed simian immunodeficiency (SIV) immunogens were tested in rhesus macaques as part of the effort to design a safe and effective vaccine for human virus. Immunization with VEE replicon particles induced both humoral cellular immune responses. Four four vaccinated animals protected against disease at least 16 months following intravenous challenge pathogenic SIV swarm, while two controls required...
Antibodies generated by candidate HIV-1 vaccines in a phase I clinical trial were assessed for neutralizing activity with panel of eight well-characterized, genetically diverse clade B primary isolates having an R5 phenotype. The consisted one three different recombinant canarypox vectors expressing membrane-anchored HIV-1MNgp120 (ALVAC vCP205, vCP1433, and vCP1452) followed boosting soluble gp160 hybrid consisting MNgp120 the majority gp41 from strain IIIB. Serum samples subset volunteers...
The lyotropic L 3 phase was used as a template to form nanoporous monolithic silicates with continuously adjustable pore sizes. monolith optically isotropic and transparent nonperiodic network. size adjusted by change in the solvent volume fraction rather than of surfactant. Unlike other silicates, bicontinuous pores were water-filled; removal surfactant not necessary access pores. Measured characteristic dimensions from six more 35 nanometers. For given fraction, x-ray scattering indicated...
Calcium carbonate was grown by diffusion of gaseous carbon dioxide into aqueous calcium chloride–alcohol solutions and the relationship between alcohol additive growing crystal investigated. There no evidence that growth controlled through any specific molecular interaction facets alcohol. Under control conditions, both calcite vaterite were in a ratio 1∶3, respectively. However, overall trend for all alcohols investigated preferential precipitation calcite, as compared to control. In...
Several attempted syntheses of Ti-TMS1, a hexagonal mesoporous TiO2 reported by Antonelli and Ying, have resulted in lamellar structure as determined two-dimensional powder X-ray diffraction transmission electron microscopy (TEM). Regions partially calcined materials, when observed TEM can be mistaken for material. In no cases are specimens produced that were unambiguously hexagonal. It is concluded the material exists, if at all, only minor component larger phosphate surfactants used....
Controlling and manipulating protein behavior at an interface is of immense relevance to a broad range physicochemical biological phenomena technological processes. Although many experimental studies have contributed rapid progress in the fundamental knowledge interfaces, detailed molecular-level understanding mechanism adsorption still remarkably lacking. In this study, atomistic molecular dynamics simulations were used characterize β-lactoglobulin two different oil/water (O/W) where oil...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhase Behavior of Dodecyltrimethylammonium Bromide/Water MixturesK. M. McGrathCite this: Langmuir 1995, 11, 5, 1835–1839Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 1995https://pubs.acs.org/doi/10.1021/la00005a066https://doi.org/10.1021/la00005a066research-articleACS PublicationsRequest reuse permissionsArticle Views921Altmetric-Citations70LEARN ABOUT THESE METRICSArticle Views are the...
The ability to determine the calcium carbonate polymorphic ratio of calcite, aragonite and vaterite in a mixture is important for variety applications, particularly fields biomineralisation crystal engineering. Raman spectroscopy powder X-ray diffraction were used quantitatively composition both binary tertiary mixtures carbonate. It was found that quantitative detection limits superior infrared spectroscopy.
The hydration of polar natural and synthetic lipids yields a variety lipid phases including various inverted cubic the hexagonal (HII) phase. HII phase can be considered as aqueous columns encased with monolayer arranged in pattern. head groups are well-ordered at water interface, whereas tails disordered to fill volume between tubes water. A particularly interesting characteristic is large temperature effect on basis vector length d lattice. Previous studies indicate that polymerization...
Biomimetic materials which display the complexity of biominerals like nacre are synthetically difficult to prepare. The formation chitin/calcium carbonate composites, where CaCO(3) is present as aragonite, was achieved via reacetylation preformed chitosan scaffolds followed by combination presoaking chitin templates with mineral solutions in presence poly(acrylic acid). as-synthesised composites comprised well-ordered ribbons aragonite crystals held within an organic matrix, mimicking...
Chitosan hydrogels are of considerable interest in synthetic biomimetic mineralisation strategies due to their favourable characteristics such as the presentation a large surface area for crystal nucleation within structured yet responsive scaffold. were prepared and subsequently calcium carbonate was initiated using method which combines alternate soaking films with precursor solutions followed by treatment Kitano solution. This combined approach allows increased extent mineralisation,...
Protein adsorption at liquid-liquid interfaces is of immense relevance to many biological processes and dairy-based functional foods. Due experimental limitations, however, there still a remarkable lack understanding the mechanism, particularly molecular level. In this study, atomistic dynamics simulations were used elucidate approach mechanism β-lactoglobulin (β-LG) decane-water interface. Through multiple independent starting from three representative initial orientations β-LG relative...
Calcium carbonate was grown from aqueous solution in the presence of organic crystal modifiers saccharide and alcohol subclasses. The control crystallization procedure preferentially nucleates vaterite, kinetically stabilized calcium polymorph. Addition saccharides (mono-, di-, polysaccharides) to mix drives system nucleate calcite, thermodynamically preferred However, degree calcite stabilization for monosaccharides is modified by number equatorial −OH moieties. Disaccharide results were...
Force–separation curves measured from a singe pair of emulsion droplets as function salt concentration (fits are DLVO theory).
For the first time it has been shown that upon shearing of a sponge phase in Couette cell transition to new highly birefringent with same viscosity was induced. This is dependent concentration solvent, length shearing, and history system.
The correlation of molecular diffusion coefficients obtained via a novel two-dimensional pulsed gradient spin-echo (PGSE) NMR method has been shown to reveal detailed structural information on the mesophases lyotropic liquid crystals. A four-component system containing both nonionic (pentaethylene glycol monododecyl ether) and ionic (sodium dodecyl sulfate) surfactants, water, decane was prepared left equilibrate. In temperature region around 309 K, lamellar mesophase forms. Laplace inverse...
Continuous self-assembled growth of both the organic and inorganic components materials with nacre-like structure is achieved upon mineralisation chitin chitosan scaffolds using a combined soaking method inclusion poly(acrylic acid) oligomers as additives.