Dissociation of a Tetrameric Enzyme with Interface-Targeted Peptides. With antibiotic resistance on the rise, there is an urgent need to develop new antibiotics and an equally urgent need to characterise new antibiotic targets. One such target is dihydrodipicolinate synthase (DHDPS) which catalyses the critical step in lysine and cell wall biosynthesis in bacteria. This proposal aims to generate new drugs targeting DHDPS for effective and rapid treatment of bacterial infections, including gastro ....Dissociation of a Tetrameric Enzyme with Interface-Targeted Peptides. With antibiotic resistance on the rise, there is an urgent need to develop new antibiotics and an equally urgent need to characterise new antibiotic targets. One such target is dihydrodipicolinate synthase (DHDPS) which catalyses the critical step in lysine and cell wall biosynthesis in bacteria. This proposal aims to generate new drugs targeting DHDPS for effective and rapid treatment of bacterial infections, including gastroenteritis. Recent statistics show that over 5 million Australians suffer from gastroenteritis each year and hospitalisation for this infection is nearly seven times higher for indigenous than non-indigenous children. Accordingly, this research has the potential to assure a healthier future for millions of Australians.Read moreRead less
Biomolecular activity modulated by interaction with nanostructures. Nanotechnological methods are able to reliably fabricate artificial nanostructures with dimensions similar to those of large biomolecules (a few to tens of nanometers). This study focuses on the interaction of artificial nanostructures with biomolecules such as proteins and DNA, and will enable scientists to better understand biomolecular recognition and binding events, which are central to all biological processes. The underst ....Biomolecular activity modulated by interaction with nanostructures. Nanotechnological methods are able to reliably fabricate artificial nanostructures with dimensions similar to those of large biomolecules (a few to tens of nanometers). This study focuses on the interaction of artificial nanostructures with biomolecules such as proteins and DNA, and will enable scientists to better understand biomolecular recognition and binding events, which are central to all biological processes. The understanding gained can then be used to design biomimetic surfaces for use in health monitoring and medical diagnostic devices with improved sensitivity, robustness and portability, thereby providing significant benefits to the health sector.Read moreRead less
Advancing x-ray imaging into new dimensions using interferometry and phase-space tomography. Synchrotron science and nanofabrication technologies are priority investment areas for most industrial countries including Australia. This research program takes advantages of recent progress in these fields and aims to advance x-ray imaging techniques of high sensitivity and low radiation dose and retrieve all extractable information of an object encoded in a wavefield. The development of these techniqu ....Advancing x-ray imaging into new dimensions using interferometry and phase-space tomography. Synchrotron science and nanofabrication technologies are priority investment areas for most industrial countries including Australia. This research program takes advantages of recent progress in these fields and aims to advance x-ray imaging techniques of high sensitivity and low radiation dose and retrieve all extractable information of an object encoded in a wavefield. The development of these techniques is critical to future opportunities of frontier discoveries of the biological, nano and atomic world. Its application includes structural biology, medical diagnosis, biomedicine, material sciences and many other fields.Read moreRead less
Investigations into the Versatility of Peptide Nucleic Acid Conjugates. Neurodegeneration and cancer are two of the greatest frontiers in modern medicine. They impose significant medical, financial and social burdens on sufferers, carers and the wider community. Novel technologies with the ability to help diagnosis, enlighten researchers to the biological principles governing the disease and that can make a contribution to prevention, quality of life issues and survival of sufferers are of utmos ....Investigations into the Versatility of Peptide Nucleic Acid Conjugates. Neurodegeneration and cancer are two of the greatest frontiers in modern medicine. They impose significant medical, financial and social burdens on sufferers, carers and the wider community. Novel technologies with the ability to help diagnosis, enlighten researchers to the biological principles governing the disease and that can make a contribution to prevention, quality of life issues and survival of sufferers are of utmost importance. This project aims to make a significant contribution to these areas using antisense technologies against some previously studied targets.Read moreRead less
Construction and Use of Yoctowells as Vessels for Catalysis, Sensing and Artificial Photosynthesis. Yoctowell recognition systems are likely to form the basis of a new generation of biosensors, high throughput screening systems for identification of nucleotides and as energy transduction systems. As a result, this research will be relevant to technological advances in the areas of biotechnology and nanotechnology. Researching functional yoctowells containing photoactive and redox-active componen ....Construction and Use of Yoctowells as Vessels for Catalysis, Sensing and Artificial Photosynthesis. Yoctowell recognition systems are likely to form the basis of a new generation of biosensors, high throughput screening systems for identification of nucleotides and as energy transduction systems. As a result, this research will be relevant to technological advances in the areas of biotechnology and nanotechnology. Researching functional yoctowells containing photoactive and redox-active components will contribute to the major effort in basic research on smart optoelectric that are needed today to meet tomorrow's energy demands in a sustainable way. Read moreRead less
Why is most of the genetic variance for complex traits undetected by large powerful screens of common variants? The genomics revolution has made it possible to measure thousands of DNA variants in individuals. These variants have been associated with phenotypic outcomes in a range of species. Paradoxically, even very large studies have only accounted for a fraction of the resemblance between relatives that we know exist. Our study will test three specific hypotheses to explain this paradox. A be ....Why is most of the genetic variance for complex traits undetected by large powerful screens of common variants? The genomics revolution has made it possible to measure thousands of DNA variants in individuals. These variants have been associated with phenotypic outcomes in a range of species. Paradoxically, even very large studies have only accounted for a fraction of the resemblance between relatives that we know exist. Our study will test three specific hypotheses to explain this paradox. A better understanding about the genetic architecture for complex traits will improve the efficiency of gene mapping methods, including applications in humans for traits related to productive ageing and a healthy start to life, will lead to more efficient selection programs in agricultural populations and will inform us with respect to past evolutionary events.Read moreRead less
In-situ Scanning Probe Microscopy of biological redox processes: nanoscale structure and morphology. The science behind this project underpins the development of nanobiotechnology. Immediate applications foreseen, are the development of biosensors and diagnostic devices based on our intimate knowledge of the nature of the protein attachment to a surface. Use of synthetic membranes to create biomimetic surfaces will impact significantly on our understanding of the role and contribution membranes ....In-situ Scanning Probe Microscopy of biological redox processes: nanoscale structure and morphology. The science behind this project underpins the development of nanobiotechnology. Immediate applications foreseen, are the development of biosensors and diagnostic devices based on our intimate knowledge of the nature of the protein attachment to a surface. Use of synthetic membranes to create biomimetic surfaces will impact significantly on our understanding of the role and contribution membranes have on protein structure, function hence disease.Read moreRead less
Molecular characterization of stem cell differentiation and oocyte maturation using synchrotron infrared spectroscopy and Atomic Force Microscopy/Raman imaging. There are currently no molecular based methods to assess oocyte maturation and stem cell differentiation at the single cell level. Consequently the need for such techniques is critical in placing Australia at the forefront in this rapidly expanding field. Such technology would give Australia a leading edge in stem cell and oocyte researc ....Molecular characterization of stem cell differentiation and oocyte maturation using synchrotron infrared spectroscopy and Atomic Force Microscopy/Raman imaging. There are currently no molecular based methods to assess oocyte maturation and stem cell differentiation at the single cell level. Consequently the need for such techniques is critical in placing Australia at the forefront in this rapidly expanding field. Such technology would give Australia a leading edge in stem cell and oocyte research and ultimately assist in discovering disease cures for debilitating neurodegenerative diseases and spinal chord injury, while techniques for determining the viability of oocytes may have important implications for future in vitro fertilization programs. The intellectual property and technologies developed from this research could also have potential to impact on the global market.Read moreRead less
Opto-Microfluidics: A Rapid and Sensitive Platform for Biological Diagnostics. One in four people above 25 years suffer from diabetes-related diseases in Australia, with an associated economic cost exceeding $3 billion a year. A microdevice for continuous glucose monitoring would help patients to manage the disease, leading to huge individual, clinical and societal benefits. Life expectancy is expected to increase along with quality of life. Integration of the microdevice with insulin delivery w ....Opto-Microfluidics: A Rapid and Sensitive Platform for Biological Diagnostics. One in four people above 25 years suffer from diabetes-related diseases in Australia, with an associated economic cost exceeding $3 billion a year. A microdevice for continuous glucose monitoring would help patients to manage the disease, leading to huge individual, clinical and societal benefits. Life expectancy is expected to increase along with quality of life. Integration of the microdevice with insulin delivery would realise an 'artificial pancreas', revolutionising the management and treatment of the disease. The technology will also provide a platform for other point-of-care medical diagnostic devices, which will allow early participation in this emerging market and cement Australia's position in bionanotechnology.Read moreRead less
Probing the function of protein molecular motors on nano-fabricated structures. The function of protein linear molecular motors, which are natural dynamic bio-nano-devices with a ubiquitous importance in multicellular organisms, will be 'probed' with purposefully designed nano-structures fabricated via photo- or Scanning Probe Microscopy Lithography, that is, flat polymeric surfaces with combinatorial combinations of physico-chemistries; and micro/nano-channels and nano-wells with critical dimen ....Probing the function of protein molecular motors on nano-fabricated structures. The function of protein linear molecular motors, which are natural dynamic bio-nano-devices with a ubiquitous importance in multicellular organisms, will be 'probed' with purposefully designed nano-structures fabricated via photo- or Scanning Probe Microscopy Lithography, that is, flat polymeric surfaces with combinatorial combinations of physico-chemistries; and micro/nano-channels and nano-wells with critical dimensions similar to the scale of the probed biomolecules. The project turns 'up-side down' the challenge of invasive nano-probing of biomolecules using it in an engineered manner. The fundamental understanding of linear molecular motors will impact on biomedical science and on the assessment of hybrid natural-artificial dynamic nano-devices.Read moreRead less