Metal complexes for sustainable light-driven synthesis. The aim of this project is to use cheap, abundant transition metal ions and visible light to enable challenging synthetic chemical reactions. The significant problems addressed are that most synthetic reactions using visible light currently require expensive precious metals, and fundamental reaction pathways used by Nature remain inaccessible. Both of these problems limit the scope of synthetic applications. The outcomes will be new knowled ....Metal complexes for sustainable light-driven synthesis. The aim of this project is to use cheap, abundant transition metal ions and visible light to enable challenging synthetic chemical reactions. The significant problems addressed are that most synthetic reactions using visible light currently require expensive precious metals, and fundamental reaction pathways used by Nature remain inaccessible. Both of these problems limit the scope of synthetic applications. The outcomes will be new knowledge and sustainable technologies that can better harness visible light for useful synthetic chemistry applications. The benefits will be more efficient and cost-effective routes to valuable molecules ubiquitous in everyday life.Read moreRead less
Coinage metal nanoclusters: synthesis, structure and reactivity. Metal catalysts play important roles in the multi-billion dollar production of many industrial and fine chemicals used in wide-ranging applications including pharmaceuticals, insecticides and polymers. Despite the importance of metal catalysed reactions, the molecular details of such processes remain poorly understood. Breakthrough studies highlight that reactions previously thought to be catalysed by discrete metal catalysts are i ....Coinage metal nanoclusters: synthesis, structure and reactivity. Metal catalysts play important roles in the multi-billion dollar production of many industrial and fine chemicals used in wide-ranging applications including pharmaceuticals, insecticides and polymers. Despite the importance of metal catalysed reactions, the molecular details of such processes remain poorly understood. Breakthrough studies highlight that reactions previously thought to be catalysed by discrete metal catalysts are in fact catalysed by metal nanoclusters. This project involves the application of advanced mass spectrometric and computational methods to explore the formation and reactivity of copper, silver and gold nanoclusters. Identification of key reactive intermediates will inform the design of next generation catalysts.Read moreRead less
On-fibre separation science with ambient ionisation mass spectrometry. This project aims to combine fibre-based electrofluidics and ambient ionisation mass spectrometry. Fibre-based electrophoresis is a separation technology which is cheaper, simpler and faster than pre-MS analyses. This project will use the fibre simultaneously as the ionisation platform for ambient mass spectrometry, combining the processes of separation and ionisation in a portable and flexible platform. The developed technol ....On-fibre separation science with ambient ionisation mass spectrometry. This project aims to combine fibre-based electrofluidics and ambient ionisation mass spectrometry. Fibre-based electrophoresis is a separation technology which is cheaper, simpler and faster than pre-MS analyses. This project will use the fibre simultaneously as the ionisation platform for ambient mass spectrometry, combining the processes of separation and ionisation in a portable and flexible platform. The developed technology is expected to provide new capability in bioanalysis, proteomics and rapid clinical diagnostics. Future benefits may include new commercial fibre based technologies which could be applied within industrial and clinical laboratories within the next ten years.Read moreRead less
A Midas touch for electrophiles in new reaction development. This project aims to address the lack of knowledge about how high-value organic molecules are formed in gold-catalysed reactions by advancing a novel mode of catalysis. This project expects to generate new knowledge about these gold-catalysed reactions using an innovative, interdisciplinary approach incorporating computational and synthetic techniques. Expected outcomes of this project include the optimisation and development of import ....A Midas touch for electrophiles in new reaction development. This project aims to address the lack of knowledge about how high-value organic molecules are formed in gold-catalysed reactions by advancing a novel mode of catalysis. This project expects to generate new knowledge about these gold-catalysed reactions using an innovative, interdisciplinary approach incorporating computational and synthetic techniques. Expected outcomes of this project include the optimisation and development of important organic reactions and enhancing collaboration nationally and internationally between computational and synthetic chemists. This should provide significant benefits in the form of improved chemical reactions for chemists to prepare new pharmaceuticals, agrochemicals and materials.Read moreRead less
Biomimetic templating radical polymerisation in nanoreactors. The aim is to develop methodology for synthesis of polymer with hitherto inaccessible control of the microstructure by free radical means, that is the molecular weight distribution and monomer sequences. This will be achieved by combining the two concepts of biomimetic templated radical polymerisation and polymerisation in nanoreactors in the form of submicron-sized micelles or droplets. Scale-up of the methodology will be developed b ....Biomimetic templating radical polymerisation in nanoreactors. The aim is to develop methodology for synthesis of polymer with hitherto inaccessible control of the microstructure by free radical means, that is the molecular weight distribution and monomer sequences. This will be achieved by combining the two concepts of biomimetic templated radical polymerisation and polymerisation in nanoreactors in the form of submicron-sized micelles or droplets. Scale-up of the methodology will be developed based on an environmentally friendly approach whereby miniemulsions are generated using carbon dioxide. Increased ability to control the polymer microstructure will enable advanced design of functional polymers with far-reaching applications in materials science, nanotechnology and nanomedicine. Read moreRead less
Impact of Metal - Reactive Oxygen Species (ROS) Interactions on Growth and Toxicity of Ichthyotoxic Algae in Australian Coastal Waters. Toxic algal blooms in estuarine and coastal waters can have devastating economic and ecological impacts but remarkably little is known about the factors that control either organism growth or toxin severity. Recent studies suggest that the interplay between delivery of the nutrient trace metals iron and copper and the method via which the organism acts to assimi ....Impact of Metal - Reactive Oxygen Species (ROS) Interactions on Growth and Toxicity of Ichthyotoxic Algae in Australian Coastal Waters. Toxic algal blooms in estuarine and coastal waters can have devastating economic and ecological impacts but remarkably little is known about the factors that control either organism growth or toxin severity. Recent studies suggest that the interplay between delivery of the nutrient trace metals iron and copper and the method via which the organism acts to assimilate these metals is critical to the generation and aggressiveness of the toxins produced. These processes will be investigated in this study and conceptual and mathematical models will be developed which will assist in assessing management options for estuarine and coastal environments.Read moreRead less
How does warming prevent soil nitrogen availability from declining in response to elevated CO2? The sustainable use of the terrestrial environment depends upon maintaining ecosystem productivity which in turn depends upon nutrient availability within the soil. Increasing levels of CO2 in the atmosphere are known to decrease nutrient availability while warming prevents this from happening. The aims of this project are to determine how warming is able to prevent elevated CO2 concentrations from re ....How does warming prevent soil nitrogen availability from declining in response to elevated CO2? The sustainable use of the terrestrial environment depends upon maintaining ecosystem productivity which in turn depends upon nutrient availability within the soil. Increasing levels of CO2 in the atmosphere are known to decrease nutrient availability while warming prevents this from happening. The aims of this project are to determine how warming is able to prevent elevated CO2 concentrations from reducing soil N availability and hence productivity in a native grassland ecosystems. This is important, as it will allow likely problems caused by global climate change to be predicted by increasing the understanding of the underlying mechanisms as well as improving the management of grasslands in an environmentally sustainable way. Read moreRead less
Southern Ocean aerosols: sources, sinks and impact on cloud properties. This project aims to provide fundamental process-level understanding of atmospheric aerosol processes over the Southern Ocean, a region that has a profound influence on the Australian and global climate and where climate models perform poorly. Comprehensive observations during 3 Southern Ocean voyages and land-based measurements will enhance our knowledge of aerosols and cloud formation in that region and provide much-needed ....Southern Ocean aerosols: sources, sinks and impact on cloud properties. This project aims to provide fundamental process-level understanding of atmospheric aerosol processes over the Southern Ocean, a region that has a profound influence on the Australian and global climate and where climate models perform poorly. Comprehensive observations during 3 Southern Ocean voyages and land-based measurements will enhance our knowledge of aerosols and cloud formation in that region and provide much-needed data for improving global climate models. Expected outcomes include more accurate seasonal and latitudinal representations of Southern Ocean aerosol populations, properties and sources. The main benefit includes improvements in weather forecasting and future climate projection for Australia and the Southern Hemisphere.Read moreRead less
Investigating the molecular function of alpha-Haemoglobin stabilising protein. The research described in this proposal will provide new insights into haemoglobin regulation and redox chemistry in erythrocytes. Deregulation of these processes gives rise to a number of debilitating diseases, including varieties of anaemia and thalassaemia-in Australia it is estimated that 3% of the population could be carriers of b-thalassaemia mutations. Given the contribution of free aHb to the pathology of b-th ....Investigating the molecular function of alpha-Haemoglobin stabilising protein. The research described in this proposal will provide new insights into haemoglobin regulation and redox chemistry in erythrocytes. Deregulation of these processes gives rise to a number of debilitating diseases, including varieties of anaemia and thalassaemia-in Australia it is estimated that 3% of the population could be carriers of b-thalassaemia mutations. Given the contribution of free aHb to the pathology of b-thalassaemia, understanding the specific aHb-binding factor, AHSP is a goal of national significance. In the long term, manipulation of AHSP function through gene therapy may have a direct role in the treatment of thalassaemia.Read moreRead less