Nanotechnology in nature: the evolutionary significance of iridescent ultraviolet colouration in butterflies. Nanostructural colour is a novel and interesting biological phenomenon that has potential application in textile and paint industries. This research has the potential to uncover knowledge relevant to future genetic manipulation and/or artificial synthesis of this trait for industry. Fundamental benefits will include a contribution to our understanding of evolution and biological diversit ....Nanotechnology in nature: the evolutionary significance of iridescent ultraviolet colouration in butterflies. Nanostructural colour is a novel and interesting biological phenomenon that has potential application in textile and paint industries. This research has the potential to uncover knowledge relevant to future genetic manipulation and/or artificial synthesis of this trait for industry. Fundamental benefits will include a contribution to our understanding of evolution and biological diversity, enhancement of Australia's research profile, and the cultivation of new scientific expertise. This proposal also promises to benefit the Australian scientific community through the establishment of collaborative links with universities in the USA and UK, and to increase mainstream awareness of Australia's stunning natural resources.Read moreRead less
Intravital super-resolution imaging via Stimulated Emission Depletion microscopy (STED)-microendoscopy. We will develop a new technology to enable the imaging of sub-cellular structures within a biological specimen, with super-resolution. This intravital super-resolution imaging technology will build off world leading techniques to image objects with super-resolution and to perform this within a specimen, with minimal invasion. The broad ramifications of this technology apply to biology, medical ....Intravital super-resolution imaging via Stimulated Emission Depletion microscopy (STED)-microendoscopy. We will develop a new technology to enable the imaging of sub-cellular structures within a biological specimen, with super-resolution. This intravital super-resolution imaging technology will build off world leading techniques to image objects with super-resolution and to perform this within a specimen, with minimal invasion. The broad ramifications of this technology apply to biology, medical science, imaging and sensing. Important applications include the early detection of debilitating diseases and the advancement of understanding of cellular biology. This research will raise Australia's profile as a world leader in science and technology, building on our emerging presence in the biophysical sciences.Read moreRead less
Biohumanities: Philosophical, Historical, and Socio-Cultural Studies of Contemporary Bioscience. Improving understanding of the meaning and implications of contemporary bioscience, especially genetics and molecular biology, through bioliterate research in the humanities and social sciences, and conversely through better assimilation of bioscience and its significance by the humanities and social sciences. The research will be conducted in close collaboration with the Australian scientific commun ....Biohumanities: Philosophical, Historical, and Socio-Cultural Studies of Contemporary Bioscience. Improving understanding of the meaning and implications of contemporary bioscience, especially genetics and molecular biology, through bioliterate research in the humanities and social sciences, and conversely through better assimilation of bioscience and its significance by the humanities and social sciences. The research will be conducted in close collaboration with the Australian scientific community and will be disseminated back to the scientific community, to the humanities and to the Australian public. The project will bring to Australia the strengths of the applicant's existing collaborations with leading research centres in this field in the USA, UK and Canada.Read moreRead less
Quantum coherence of electronic transport in layered magnetoresistive materials. The continued rapid expansion of information technology requires new materials and devices for information storage. State of the art computer memories are based on new materials which consist of layers of complex arrays of atoms. These materials have metallic properties quite unlike those of simple metals such as copper and steel. This research will lead to a greater understanding of and ability to design better ma ....Quantum coherence of electronic transport in layered magnetoresistive materials. The continued rapid expansion of information technology requires new materials and devices for information storage. State of the art computer memories are based on new materials which consist of layers of complex arrays of atoms. These materials have metallic properties quite unlike those of simple metals such as copper and steel. This research will lead to a greater understanding of and ability to design better materials. Australia's capacity for research and development in this scientifically challenging and technologically important field will be enhanced by this project. Read moreRead less
MOLECULAR BREEDING OF CYTOCHROME P450 ENZYMES. Cytochrome P450s are enzymes that catalyse an impressive array of oxidative transformations. However, there is little available data on how to modify their substrate specificity and generate tailored biocatalysts. We plan to use an emerging technology known as DNA shuffling to create libraries of P450s with varying activities. These will then be screened for enzymes that can catalyse the formation of indigo (a blue dye) and indirubin (a chemother ....MOLECULAR BREEDING OF CYTOCHROME P450 ENZYMES. Cytochrome P450s are enzymes that catalyse an impressive array of oxidative transformations. However, there is little available data on how to modify their substrate specificity and generate tailored biocatalysts. We plan to use an emerging technology known as DNA shuffling to create libraries of P450s with varying activities. These will then be screened for enzymes that can catalyse the formation of indigo (a blue dye) and indirubin (a chemotherapeutic agent). The enzymes that catalyse indigo formation will be useful in the production of coloured transgenic plants and those that produce indirubin will have a role in gene therapy.Read moreRead less
Light scattering in complex mesoscale systems. The aim of the proposed project is to develop tested theoretic models of, and test applications of, the scattering of light in complex mesoscale systems. This will include: light scattering by biological cells, including optical cancer detection, remote sensing of cell populations, flow cytometry and optical tweezers; optically driven micromachines, and nano- and micro-structured materials. These applications are of considerable technological, socia ....Light scattering in complex mesoscale systems. The aim of the proposed project is to develop tested theoretic models of, and test applications of, the scattering of light in complex mesoscale systems. This will include: light scattering by biological cells, including optical cancer detection, remote sensing of cell populations, flow cytometry and optical tweezers; optically driven micromachines, and nano- and micro-structured materials. These applications are of considerable technological, social, and economic importance, and significant advances are possible. Methods developed during this project will allow accurate theoretical calculations to be performed where only inadequate approximations have previously been possible.Read moreRead less
BIOCATALYSTS MINED FROM CYTOCHROME P450 LIBRARIES: AN INNOVATIVE TOOL FOR ACCELERATING DRUG DEVELOPMENT. The cytochrome P450s (P450s) are a family of enzymes that are perhaps the most versatile biological catalysts known. DNA shuffling is an emerging technique that takes the genes encoding families of enzymes and creates libraries of catalysts with both improved and novel properties. We will obtain proof of concept that shuffled P450 libraries can be screened and optimized for use as biocatalys ....BIOCATALYSTS MINED FROM CYTOCHROME P450 LIBRARIES: AN INNOVATIVE TOOL FOR ACCELERATING DRUG DEVELOPMENT. The cytochrome P450s (P450s) are a family of enzymes that are perhaps the most versatile biological catalysts known. DNA shuffling is an emerging technique that takes the genes encoding families of enzymes and creates libraries of catalysts with both improved and novel properties. We will obtain proof of concept that shuffled P450 libraries can be screened and optimized for use as biocatalysts in drug development. The methodologies developed here will overcome two critical bottlenecks in current drug development: the optimisation and metabolic profiling of new drug candidates. This will yield important benefits in accelerating the optimisation and safety testing of drugs under development.Read moreRead less
Organophosphate pesticide degradation: evolved enzymes and biomimetics for bioremediation and medicine. Organophosphate (OP) pesticides are an indispensable part of modern agriculture - their use results in dramatically increased crop yields. However, they are toxic and can damage the environment and cause significant health problems. Enzymes are currently being used to treat runoff water that is contaminated with OPs. The same enzymes also have the potential to aid in the treatment of OP poison ....Organophosphate pesticide degradation: evolved enzymes and biomimetics for bioremediation and medicine. Organophosphate (OP) pesticides are an indispensable part of modern agriculture - their use results in dramatically increased crop yields. However, they are toxic and can damage the environment and cause significant health problems. Enzymes are currently being used to treat runoff water that is contaminated with OPs. The same enzymes also have the potential to aid in the treatment of OP poisoning. However, OP degrading enzymes could be improved in many ways - we will evolve these enzymes to enhance their catalytic properties - to enable them to act more efficiently on an increased number of OPs. Read moreRead less
The molecular biology and biochemistry of bacterial manganese oxidation. This project will further the understanding of bacterial manganese (Mn2+) oxidation. A multi-disciplinary approach will be used to further investigate the genetics and biochemistry of the Mn2+-oxidising systems of Pseudomonas putida, Leptothrix sp. and Pedomicrobium sp. This work will focus in particular on comparing the Mn2+-oxidising systems from unrelated bacteria. A combination of molecular biology, protein biochemis ....The molecular biology and biochemistry of bacterial manganese oxidation. This project will further the understanding of bacterial manganese (Mn2+) oxidation. A multi-disciplinary approach will be used to further investigate the genetics and biochemistry of the Mn2+-oxidising systems of Pseudomonas putida, Leptothrix sp. and Pedomicrobium sp. This work will focus in particular on comparing the Mn2+-oxidising systems from unrelated bacteria. A combination of molecular biology, protein biochemistry and spectroscopy will be used. This will be the first time that the enzymes of bacterial Mn2+-oxidation will have been characterised in such detail and will lead to a greater understanding of the process of bacterial manganese oxidation.Read moreRead less
High throughput engineering of genetically encodable fluorescent sensors of intracellular signalling networks. Understanding of biochemical processes in living organisms is central to biological research and drug discovery. At present, the field suffers from a chronic paucity of adequate observation methods. The proposed project represents an interdisciplinary effort to create approaches for real-time monitoring of complex cellular chemistries. This work will deliver novel technologies for use i ....High throughput engineering of genetically encodable fluorescent sensors of intracellular signalling networks. Understanding of biochemical processes in living organisms is central to biological research and drug discovery. At present, the field suffers from a chronic paucity of adequate observation methods. The proposed project represents an interdisciplinary effort to create approaches for real-time monitoring of complex cellular chemistries. This work will deliver novel technologies for use in diagnostics and drug development. It will provide vital information on the changes in cellular processes induced by malignant transformation, viral infection and aging. This work will generate both health and economic benefits for the community and have a positive impact on the international visibility of Australian biomedical research.Read moreRead less