Novel Synthetic Receptors For Selective Recognition of Phosphate Oxoanions. Anions are critical to the maintenance of life, playing roles in almost every biochemical process. Artificial anion receptors that bind strongly to specific anions have considerable potential applications in biomedicine, but current receptors do not possess the required selectivity for applications. We will undertake the design and construction of a number of molecular receptors tailored to complement the size, shape and ....Novel Synthetic Receptors For Selective Recognition of Phosphate Oxoanions. Anions are critical to the maintenance of life, playing roles in almost every biochemical process. Artificial anion receptors that bind strongly to specific anions have considerable potential applications in biomedicine, but current receptors do not possess the required selectivity for applications. We will undertake the design and construction of a number of molecular receptors tailored to complement the size, shape and charge of specific biologically important anions and will assess their ability to bind selectively to their target guests. This will lead to the development of small molecule receptors for use in biomedical applications.Read moreRead less
Backbone Modified Cyclic Peptides: Scaffolds for Supramolecular Chemistry. The synthesis of compounds that mimic Nature's catalysts - enzymes - will provide us with a better understanding of how these intriguing molecules function and may lead to the development of new catalysts for industrial processes. Modified cyclic peptides could be used as platforms to arrange catalytic groups in a spatially well-defined manner to mimic enzymes. As cyclic peptides are often difficult to prepare, I aim to d ....Backbone Modified Cyclic Peptides: Scaffolds for Supramolecular Chemistry. The synthesis of compounds that mimic Nature's catalysts - enzymes - will provide us with a better understanding of how these intriguing molecules function and may lead to the development of new catalysts for industrial processes. Modified cyclic peptides could be used as platforms to arrange catalytic groups in a spatially well-defined manner to mimic enzymes. As cyclic peptides are often difficult to prepare, I aim to develop a powerful general method for their synthesis. This methodology will then be applied to the synthesis of cyclic peptide-based enzyme mimics.Read moreRead less
Self-Assembled Porphyrin-Fullerene Photovoltaic Electrodes: Towards Nanostructured Organic Solar Cells. Energy is arguably the single most important problem facing humanity today. The development of cheap, efficient photovoltaic technology could dramatically change this, providing humanity with renewable, environmentally acceptable energy resources. The need to replace present electrical energy generation, largely based on fossil fuel, is without argument given the detrimental effects of global ....Self-Assembled Porphyrin-Fullerene Photovoltaic Electrodes: Towards Nanostructured Organic Solar Cells. Energy is arguably the single most important problem facing humanity today. The development of cheap, efficient photovoltaic technology could dramatically change this, providing humanity with renewable, environmentally acceptable energy resources. The need to replace present electrical energy generation, largely based on fossil fuel, is without argument given the detrimental effects of global warming from increasing carbon dioxide production. The development and implementation of cheap, efficient photovoltaic technologies in Australia will not only ensure its sustainable economic growth but also contribute in a major way to the improved use of land, water, mineral and other energy resources in Australia. Read moreRead less
Metallographitic Discs as New Materials. Materials science plays a pivotal role in determining and improving economic performance and quality of life. While application of materials is the ultimate goal, basic understanding of a material's behaviour from the atomic/nano-level to macrostructural level is also of critical importance. This project builds upon the recent success of soluble, well-defined carbon discs in molecular electronics, through the preparation and study of metal-containing deri ....Metallographitic Discs as New Materials. Materials science plays a pivotal role in determining and improving economic performance and quality of life. While application of materials is the ultimate goal, basic understanding of a material's behaviour from the atomic/nano-level to macrostructural level is also of critical importance. This project builds upon the recent success of soluble, well-defined carbon discs in molecular electronics, through the preparation and study of metal-containing derivatives as new advanced crystalline and liquid crystalline materials. The possibility of enhanced electronic, optical and/or magnetic properties, along with good processability, make these materials potential candidates as the active component of future, technologically important devices.Read moreRead less
Nanomaterials: Probing supramolecular self-assembly at the solution/solid interface. Australia's competitiveness in nanotechnology must be underpinned by fundamental innovation and research. In a "bottom-up" approach to nanomaterials, it is important to understand, for the smallest possible machines that can be produced, how singular molecular components interact with one another, both during the assembly of any device and afterwards as it performs its function. For working devices the molecule ....Nanomaterials: Probing supramolecular self-assembly at the solution/solid interface. Australia's competitiveness in nanotechnology must be underpinned by fundamental innovation and research. In a "bottom-up" approach to nanomaterials, it is important to understand, for the smallest possible machines that can be produced, how singular molecular components interact with one another, both during the assembly of any device and afterwards as it performs its function. For working devices the molecules need to be assembled on a solid surface so that they can work in unison. In this project, in conjunction with researchers at the University of Cambridge, we use the new technique of gel-phase NMR spectroscopy to understand the factors involved as molecular components assemble on the surface of polystyrene beads.Read moreRead less
Supramolecular assembly in photovoltaic electrode design: Studies of ordered porphyrin/acceptor complexes on polythiophene electrodes. This research outlines an improved way to develop dye-sensitised photovoltaic solar cells for the conversion of sunlight into electricity, by increasing the molecular order of the cell components using host, guest interrelationships. As such, it addresses a problem of international concern 'How to reduce greenhouse gas emissions and stop global warming?' since s ....Supramolecular assembly in photovoltaic electrode design: Studies of ordered porphyrin/acceptor complexes on polythiophene electrodes. This research outlines an improved way to develop dye-sensitised photovoltaic solar cells for the conversion of sunlight into electricity, by increasing the molecular order of the cell components using host, guest interrelationships. As such, it addresses a problem of international concern 'How to reduce greenhouse gas emissions and stop global warming?' since solar cells do not produce carbon dioxide. To achieve our goals we draw on the skills of a team of experts from Australia (synthetic organic chemists), New Zealand (polymer and surface chemists) and Italy (photochemist and photophysicist). Such research is very appropriate for regional Australia, especially Central Queensland.Read moreRead less
Anion Binding and Sensing With Self-Assembled Metallo-Supramolecular Assemblies. Anions are of particular significance in several areas relating to the day-to-day lives of Australians; for example as contaminants in waterways and nuclear waste streams, as indicators of chemical weapons, and as antagonists in biological systems. The proposed research programme will investigate a relatively unexplored approach to binding and sensing anions. This will further research in the area of supramolecular ....Anion Binding and Sensing With Self-Assembled Metallo-Supramolecular Assemblies. Anions are of particular significance in several areas relating to the day-to-day lives of Australians; for example as contaminants in waterways and nuclear waste streams, as indicators of chemical weapons, and as antagonists in biological systems. The proposed research programme will investigate a relatively unexplored approach to binding and sensing anions. This will further research in the area of supramolecular chemistry, providing additional research expertise in this rapidly progressing area of the chemical sciences. In terms of Breakthrough science the targeted assemblies will shed further light on self-assembly processes involving ligands with different domains, placing Australian research at the forefront of such investigations.Read moreRead less
Internally decorated discrete Metallo-supramolecular Assemblies and infinite Metal-Organic Frameworks as molecular containers. In the macroscopic world, containers are used to hold, provide physical protection, or create a modified environment for their contents. This project will result in the synthesis of novel molecular container materials that provide decorated internal surfaces capable of selectively binding chemical species. In addition to the breakthrough scientific benefits of establish ....Internally decorated discrete Metallo-supramolecular Assemblies and infinite Metal-Organic Frameworks as molecular containers. In the macroscopic world, containers are used to hold, provide physical protection, or create a modified environment for their contents. This project will result in the synthesis of novel molecular container materials that provide decorated internal surfaces capable of selectively binding chemical species. In addition to the breakthrough scientific benefits of establishing the fundamentals of these systems, the binding of chemicals, which are environmental contaminants, will provide the grounding for applications that will contribute to the national priority of 'Frontier technologies'. Furthermore, this research will lead to the training of the next generation of Australian scientists by quality international researchers.Read moreRead less
Multivalent drug delivery carrier for the targeted delivery of platinum anticancer agents to hepatocytes. Hepatocellular carcinoma (HCC) is often treated with chemotherapy using cytotoxic drugs. This systemic treatment results in the distribution of the drug throughout the body. Employing a polymer particle as a drug carrier for these drugs ensures a temporal control of the release and therefore supply of the drug within the body. By attaching carbohydrate moieties onto the surface of the polyme ....Multivalent drug delivery carrier for the targeted delivery of platinum anticancer agents to hepatocytes. Hepatocellular carcinoma (HCC) is often treated with chemotherapy using cytotoxic drugs. This systemic treatment results in the distribution of the drug throughout the body. Employing a polymer particle as a drug carrier for these drugs ensures a temporal control of the release and therefore supply of the drug within the body. By attaching carbohydrate moieties onto the surface of the polymer particle the drug carrier can specifically be recognized by cell receptors, thus allowing a targeted delivery of the drug to the desired area in the body. A range of carbohydrate-based drug carriers will be synthesized and tested towards their interaction with hepatocytes to allow optimisation of this drug carrier system.
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Tailored porphyrins for nanoscience applications. Porphyrins are the pigments of life, the central components of haemoglobin in blood and chlorophyll in living plants. In order to expand their use into important areas of nanoscience, this project will establish a new porphyrin paradigm. It will result in the synthesis of novel porphyrins with inbuilt structural features that enhance their propensity to self-assemble into monolayers on surfaces, and into nanorods. This will lead to advanced mate ....Tailored porphyrins for nanoscience applications. Porphyrins are the pigments of life, the central components of haemoglobin in blood and chlorophyll in living plants. In order to expand their use into important areas of nanoscience, this project will establish a new porphyrin paradigm. It will result in the synthesis of novel porphyrins with inbuilt structural features that enhance their propensity to self-assemble into monolayers on surfaces, and into nanorods. This will lead to advanced materials for molecular sensing, photonics, molecular memory devices, catalysis, and organic photovoltaics. A new means of improving the efficiency of solar cells will also be explored. Well-trained graduates and strong international scientific cooperation will also result from the project.Read moreRead less