A5064358356- Polymer Surface Interaction Studies
- Surfactants and Colloidal Systems
- Force Microscopy Techniques and Applications
- Lipid Membrane Structure and Behavior
- Supramolecular Self-Assembly in Materials
- Methane Hydrates and Related Phenomena
- Atmospheric and Environmental Gas Dynamics
- Minerals Flotation and Separation Techniques
- Inhalation and Respiratory Drug Delivery
- Spacecraft and Cryogenic Technologies
- Electrostatics and Colloid Interactions
- Glycosylation and Glycoproteins Research
- Advanced Polymer Synthesis and Characterization
- RNA Interference and Gene Delivery
- Microfluidic and Bio-sensing Technologies
- Microfluidic and Capillary Electrophoresis Applications
- Liquid Crystal Research Advancements
- Nanoparticle-Based Drug Delivery
- Mercury impact and mitigation studies
- Polydiacetylene-based materials and applications
- Gas Sensing Nanomaterials and Sensors
- Advanced biosensing and bioanalysis techniques
- Diamond and Carbon-based Materials Research
- CO2 Sequestration and Geologic Interactions
- Surface Modification and Superhydrophobicity
New York Proton Center
2023
Communities In Schools of Orange County
2023
Manhattan Institute for Policy Research
2023
Oregon Medical Research Center
2023
Lindsay Unified School District
2023
Commonwealth Scientific and Industrial Research Organisation
2011-2022
CSIRO Manufacturing
2005-2020
RMIT University
2019-2020
Health Sciences and Nutrition
2014-2015
Clayton Foundation
2015
An atomic force microscope has been used to study the forces between a silica sphere in colloidal size range and or mica flat surfaces as function of distance separation. At low ionic strength, independent electrokinetic measurements (ζ potentials) both spheres (by electrophoresis) streaming potential) under same conditions show excellent agreement with diffuse double layer potentials derived from data using conventional DLVO theory. higher electrokinetically were found deviate those fitted...
Hydrogels formed by ultrashort heterochiral peptides are emerging as cost-effective materials for cell culture.
Change of chirality the first N-terminal amino acid tripeptides VFF and FFV from l to d results in self-assembled hydrogels at physiological pH non-assembling l-analogues. Interestingly, changing F yields very different nanostructures; nanotapes are observed for (D)VFF, twisted fibers (D)FFV.
A modified method for the production of cubic and spherical superparamagnetic nanoparticles is presented. Cubic can be made that are highly monodisperse down to a diameter 8 nm. detailed study presented physical properties these using high-resolution transmission electron microscopy analysis, X-ray powder diffraction, superconducting quantum interference device measurements, relaxivity measurements performed in magnetic resonance imaging scanner. It found iron oxide have higher degree...
Change of chirality is a useful tool to manipulate the aqueous self-assembly behaviour uncapped, hydrophobic tripeptides. In contrast with other short peptides, these tripeptides form hydrogels at physiological pH without aid organic solvents or end-capping groups (e.g. Fmoc). The novel hydrogel forming peptide DLeu-Phe-Phe (DLFF) and its epimer Leu-Phe-Phe (LFF) exemplify dramatic supramolecular effects induced by subtle changes stereochemistry. Only D-amino acid-containing instantly forms...
Fibrous networks assembled from synthetic peptides are promising candidates for biomimetic cell culture platforms and implantable biomaterials. The ability of the materials to reproduce physiological cell–matrix interactions is essential. However, complexity such systems limits their applications, thus alternative desirable. Here, we design lysozyme derived amyloid fibril with controllable topographies, perform a comprehensive study response cultured fibroblast epithelial cells. At high...
A microchip pressure-driven liquid chromatographic system with a packed column has been designed and fabricated by using poly(dimethylsiloxane) (PDMS). The was mesoporous silica beads of Ia3d space group. Separation dyes biopolymers carried out to verify the performance chip. mixture (fluorescein rhodamine B) biopolymer (10 kDa Dextran 66 BSA) were separated fluorescence technique employed detect movement molecules. Fluorescein molecule nonretained species B attached onto surface when dye in...
The immobilization of droplets a hydrocarbon liquid (n-decane) on flat solid surface has allowed the forces interaction between silica colloidal particle and hydrocarbon−water interface to be measured using atomic force microscope. Results are presented which demonstrate that nonpolar surfaces prepared in this way acquire significantly negative diffuse layer potential electrolyte solutions, as indicated by distance relationships obey DLVO theory at large separations. At smaller separations,...
We present studies of the delivery short interfering ribonucleic acid (siRNA) into a green fluorescent protein (GFP) expressing cell line, using lipid nanocarriers in cubic lyotropic liquid crystal form. These carriers are based on glycerol monooleate (GMO) and employ use varying concentrations cationic siRNA binding lipids. The essential physicochemical parameters lipid/GMO/siRNA complexes such as particle size, ζ otential, uptake stability, mesophase behavior, cytotoxicity,and gene...
The development of improved methods to allow the low energy production cubic phase forming nanoparticles (cubosomes) is highly desired. lamellar hexagonal and change these lipid has previously been induced via lowering pH addition calcium ions anionic nanoparticles. We have developed a method produce polydispersity cubosomes without requirement high input such as shear, sonication or homogenization under physiological conditions. found that simple phosphate buffered saline solution aqueous...
We show for the first time possibility of using networks amyloid fibrils, adsorbed to solid supports and with plasma polymer coatings, fabrication chemically homogeneous surfaces well-defined nanoscale surface features reminiscent topography extracellular matrix. The robust nature fibrils allows them withstand deposition conditions used no obvious deleterious effect, thus enabling underlying fibril be replicated at surface. This effect was seen despite coating thickness being an order...
Electrolytes can thermodynamically inhibit clathrate hydrate formation by lowering the activity of water in surrounding liquid phase, causing hydrates to form at lower temperatures and higher pressures compared their pure water. However, it has been reported that some thermodynamic inhibitors (THIs), when doped low concentrations, could enhance rate gas formation. We here report a systematic study model natural (a mixture 90% methane 10% propane) strong monovalent salt solutions broad range...