Synthetic and theoretical studies of metal complexes containing carbon-rich ligands. Previous studies in my group, in conjunction with synthetic and theoretical chemistry groups at the Université de Rennes 1, France, have delineated the properties of a series of complexes containing carbon chains linking two metal centres. Having achieved a partial understanding of the features which result in good electronic communication between the metal centres via the carbon chain, the present proposal see ....Synthetic and theoretical studies of metal complexes containing carbon-rich ligands. Previous studies in my group, in conjunction with synthetic and theoretical chemistry groups at the Université de Rennes 1, France, have delineated the properties of a series of complexes containing carbon chains linking two metal centres. Having achieved a partial understanding of the features which result in good electronic communication between the metal centres via the carbon chain, the present proposal seeks to extend this collaboration to further studies which will generate related compounds in which actual eletron exchange can occur, i.e. leading to oxidation/reduction, by using compounds in which two or more different metal centres are present. This may lead to development of nano devices, e.g. molecular-scale switches. If one of the centres is activated by light, a photo-active sensor may result.Read moreRead less
Studies of metal compounds containing carbon chains - approaches to novel materials. There is an increasing need to design functional devices on the molecular scale ("nanotechnology"). We are developing the chemistry of compounds which contain chains of up to 12 carbon atoms to allow electronic communication between metal centres attached to each end. This projects seeks to extend this work, to discover new and more effective compounds, and to develop the associated chemistry to provide synthese ....Studies of metal compounds containing carbon chains - approaches to novel materials. There is an increasing need to design functional devices on the molecular scale ("nanotechnology"). We are developing the chemistry of compounds which contain chains of up to 12 carbon atoms to allow electronic communication between metal centres attached to each end. This projects seeks to extend this work, to discover new and more effective compounds, and to develop the associated chemistry to provide syntheses of novel compounds of potential use in the fine chemicals industry. Extensive collaboration with French colleagues exists and will continue.Read moreRead less
All-carbon molecules in metal complexes - novel materials and intermediates. An important requirement for the future is new materials with unusual properties that can be controlled. The need for ever smaller electronic devices requires knowledge about appropriate properties (particularly electronic) of molecules designed to model devices such as wires, switches, etc. This work seeks to design, measure and evaluate such molecules, which are based on chains of carbon atoms linking metal centres ....All-carbon molecules in metal complexes - novel materials and intermediates. An important requirement for the future is new materials with unusual properties that can be controlled. The need for ever smaller electronic devices requires knowledge about appropriate properties (particularly electronic) of molecules designed to model devices such as wires, switches, etc. This work seeks to design, measure and evaluate such molecules, which are based on chains of carbon atoms linking metal centres which can gain or lose electrons readily. As the electronic structure changes, so do the physical (photo, solid-state) and chemical properties (reactivity). Improved understanding of these features will benefit development of advanced technology and new materials.Read moreRead less
Structure and activity of host-defence peptides from Australian anurans: anticancer agents, neuropeptides and nNOS inhibitors. We have discovered peptides that may have clinical applications. This is significant as these molecules may have one or more of the following properties. They may have anti-cancer effects; they may increase the effectiveness of the immune system by enhancing lymphocyte formation; and, they may act to reduce inflammation, stroke or cardiac conditions by controlling nitri ....Structure and activity of host-defence peptides from Australian anurans: anticancer agents, neuropeptides and nNOS inhibitors. We have discovered peptides that may have clinical applications. This is significant as these molecules may have one or more of the following properties. They may have anti-cancer effects; they may increase the effectiveness of the immune system by enhancing lymphocyte formation; and, they may act to reduce inflammation, stroke or cardiac conditions by controlling nitric oxide formation. Another national benefit is that personnel involved in this project are trained to the highest international standards in peptide chemistry/mass spectrometry/nuclear magnetic resonance: currently, there are not enough trained scientists in this area to meet demand.Read moreRead less
Biologically active peptides and proteins from anurans: the relationship between structure and activity. We have identified peptides (from glands of frogs and toads), some of which are amongst the most powerful biologically active compounds in the animal kingdom. The aims of this project are to investigate the relationship between the structure and bioactivity of chosen groups of peptides including pheromones, anticancer and antibiotic peptides, and peptides which inhibit neuronal nitric oxide ....Biologically active peptides and proteins from anurans: the relationship between structure and activity. We have identified peptides (from glands of frogs and toads), some of which are amongst the most powerful biologically active compounds in the animal kingdom. The aims of this project are to investigate the relationship between the structure and bioactivity of chosen groups of peptides including pheromones, anticancer and antibiotic peptides, and peptides which inhibit neuronal nitric oxide synthase. It would be of national benefit if any of these peptides have applied application, e.g. if we can use the sex pheromone of the cane toad to reduce its population, or if we can produce an anticancer active peptide of clinical applicability.Read moreRead less
Optimising Froth Zone Performance in Mineral Flotation. Froth flotation is the most widely applied technique for the selective separation of valuable mineral from gangue mineral particles. This project aims to optimize the selective separation of valuable minerals from gangue minerals within the froth zone of flotation. This project has very high national significance as deficiencies in the froth zone performance of industrial flotation plants, leads to a significant loss of valuable mineral f ....Optimising Froth Zone Performance in Mineral Flotation. Froth flotation is the most widely applied technique for the selective separation of valuable mineral from gangue mineral particles. This project aims to optimize the selective separation of valuable minerals from gangue minerals within the froth zone of flotation. This project has very high national significance as deficiencies in the froth zone performance of industrial flotation plants, leads to a significant loss of valuable mineral from mineral concentrates, as well as a reduction in concentrate grade and quality. An expected outcome of this project will be a series of new tools and methodologies to optimize froth zone performance, which will have industry wide application.Read moreRead less
The recovery of Cu from chalcopyrite-pyrite containing concentrates, ores and tailings. Chalcopyrite, a major source of Cu, is often associated in ores with the valueless mineral pyrite. The development of more efficient methods for the retrieval of the Cu is of considerable economic importance to Australian minerals processing companies. We aim to develop methodologies allowing the more efficient :
- separation of chalcopyrite and pyrite;
- leaching of Cu from ores and tailing in a heap leach ....The recovery of Cu from chalcopyrite-pyrite containing concentrates, ores and tailings. Chalcopyrite, a major source of Cu, is often associated in ores with the valueless mineral pyrite. The development of more efficient methods for the retrieval of the Cu is of considerable economic importance to Australian minerals processing companies. We aim to develop methodologies allowing the more efficient :
- separation of chalcopyrite and pyrite;
- leaching of Cu from ores and tailing in a heap leach environment and
- leaching of Cu in a concentrated chalcopyrite-pyrite reactor environment.
These aims will be achieved via an integrated surface-solution speciation approach allowing the manipulation of surface properties.
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Anomalous interfacial air-bubble dynamics: the importance of electrokinetic effects in thin film drainage. Air bubbles play important roles in numerous systems including plastics and paper recycling, water treatment and mineral separation processes, foodstuffs, beverages, cosmetics, cleaning products, fire retardants, and natural systems such as rivers, oceans and biological fluids. The properties and behaviour of these systems and processes depend on how air bubbles in water interact with each ....Anomalous interfacial air-bubble dynamics: the importance of electrokinetic effects in thin film drainage. Air bubbles play important roles in numerous systems including plastics and paper recycling, water treatment and mineral separation processes, foodstuffs, beverages, cosmetics, cleaning products, fire retardants, and natural systems such as rivers, oceans and biological fluids. The properties and behaviour of these systems and processes depend on how air bubbles in water interact with each other, and/or with other materials. Currently our understanding of the bubble interactions is incomplete. The improved understanding gained from this research project will lead to better ability to control the properties of systems and processes such as those listed above.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0347962
Funder
Australian Research Council
Funding Amount
$218,000.00
Summary
Adelaide Mass Spectrometry and Analysis Facility. This joint proposal by two South Australian universities and the Hanson Institute seeks to establish a facility for rapid characterisation and identification of biomolecules by means of MALDI-TOF and Nano LC mass spectrometry. The requested equipment is not available in South Australia. This proposal would establish a Nano LC (Q-TOF) node at the University of Adelaide-University of South Australia location and a MALDI-TOF node at the Flinders loc ....Adelaide Mass Spectrometry and Analysis Facility. This joint proposal by two South Australian universities and the Hanson Institute seeks to establish a facility for rapid characterisation and identification of biomolecules by means of MALDI-TOF and Nano LC mass spectrometry. The requested equipment is not available in South Australia. This proposal would establish a Nano LC (Q-TOF) node at the University of Adelaide-University of South Australia location and a MALDI-TOF node at the Flinders location. Its presence would greatly enhance the quality of research and teaching in priority areas such as proteomics, bioinformatics and nanotechnology and would provide a basis for fostering university and biotechnology industry collaborations.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0239035
Funder
Australian Research Council
Funding Amount
$900,000.00
Summary
Regional facility for surface and micro-structure analysis. Adelaide, Flinders and SA Universities seek to enhance the regional facility for surface and microstructure analysis. Equipment includes electron back scatter pattern imaging, high resolution coater, microprobe (CAMECA SX51) upgrade and X ray microtomography to be located at Adelaide University Centre for Electron Microscopy and Microstructure Analysis, the hub of the regional facility. The University of South Australia Ian Wark Researc ....Regional facility for surface and micro-structure analysis. Adelaide, Flinders and SA Universities seek to enhance the regional facility for surface and microstructure analysis. Equipment includes electron back scatter pattern imaging, high resolution coater, microprobe (CAMECA SX51) upgrade and X ray microtomography to be located at Adelaide University Centre for Electron Microscopy and Microstructure Analysis, the hub of the regional facility. The University of South Australia Ian Wark Research Institute node will house ToF-SIMS and SAM upgrades, the Flinders node a multimode STM atomic force microscope, and the Adelaide University Waite Campus node confocal xyz control and digital camera. Applications include biological, materials and geological research projects.Read moreRead less