Functional and structural diversity of the cathepsin L peptidase from the human blood fluke Schistosoma mansoni. Peptidases are enzymes that are important in many infectious and physiological disease states. For example, they are used by infectious pathogens to enter human tissues and survive inside their bodies. The same type of enzymes also contribute to tissue damage in many pathological processes in humans such as cancer, arithritis and osteoporosis. There is an urgent need to define their s ....Functional and structural diversity of the cathepsin L peptidase from the human blood fluke Schistosoma mansoni. Peptidases are enzymes that are important in many infectious and physiological disease states. For example, they are used by infectious pathogens to enter human tissues and survive inside their bodies. The same type of enzymes also contribute to tissue damage in many pathological processes in humans such as cancer, arithritis and osteoporosis. There is an urgent need to define their structure and properties so that we can employ rational approaches to develop new drugs that can combat these diseases and ailments. Read moreRead less
Aminopeptidases involved in regulating the amino acid pool in malaria parasites. Aminopeptidases are pivotal to the normal functions of all cells. Abnormalities in their function and/or structure results in tissue damage in many pathological processes in humans such as cancer, neuronal diseases and hormonal action. They are also critical to viral, bacterial and parasitic infections as they are employed to remove amino acids from the host for use in building their own proteins. This project bring ....Aminopeptidases involved in regulating the amino acid pool in malaria parasites. Aminopeptidases are pivotal to the normal functions of all cells. Abnormalities in their function and/or structure results in tissue damage in many pathological processes in humans such as cancer, neuronal diseases and hormonal action. They are also critical to viral, bacterial and parasitic infections as they are employed to remove amino acids from the host for use in building their own proteins. This project brings national and international expertise together to define the structure and biological properties of these essential enzymes so that in the future we can employ rational approaches to develop new drugs that can combat these diseases and ailments.Read moreRead less
New Imaging Instrumentation and Algorithms for the Simultaneous Measurement of Multiple Radio-labelled Probes in vivo. Medical imaging plays an increasingly important role in basic biological research and health care. This project will lead to new imaging technologies that allow the simultaneous measurement of more than one biological process at a time in living subjects, providing new insights into disabling diseases, such as cancer and mental illness. An immediate benefit will be to strengthen ....New Imaging Instrumentation and Algorithms for the Simultaneous Measurement of Multiple Radio-labelled Probes in vivo. Medical imaging plays an increasingly important role in basic biological research and health care. This project will lead to new imaging technologies that allow the simultaneous measurement of more than one biological process at a time in living subjects, providing new insights into disabling diseases, such as cancer and mental illness. An immediate benefit will be to strengthen the expertise in biomedical engineering and instrumentation development in Australia, where we have international leadership. The technologies developed will provide advanced tools for making fundamental biological discoveries and translating them into biotechnological or clinical applications.Read moreRead less
Simultaneous measurement of brain function and behaviour in fully conscious laboratory animals. MicroPET is an advanced imaging technology that measures important biochemical processes, such as enzyme activity rates and receptor binding, in the living rodent brain. However, the requirement for the animal to be anaesthetised precludes the study of behavioural changes in response to sensory or drug stimulus during the imaging study. In this research, we will develop novel motion tracking and compu ....Simultaneous measurement of brain function and behaviour in fully conscious laboratory animals. MicroPET is an advanced imaging technology that measures important biochemical processes, such as enzyme activity rates and receptor binding, in the living rodent brain. However, the requirement for the animal to be anaesthetised precludes the study of behavioural changes in response to sensory or drug stimulus during the imaging study. In this research, we will develop novel motion tracking and computational algorithms that enable microPET to non-invasively image the brains of conscious, freely moving animals while simultaneously observing their behaviour. These new technologies will, for the first time, allow neuroscientists to study the genetic, behavioural and neurochemical correlates of brain disease.Read moreRead less
Complete blood fractionation using a low-cost microfluidic system. This project aims to understand particle focusing in inertial microfluidic systems to design efficient devices for cell sorting. The field of microfluidics could ultimately advance medical research but device design is primitive. Microfluidic particle separations are not thoroughly simulated before fabrication to predict performance. This project is expected to accelerate progress in design of efficient microfluidic devices. The ....Complete blood fractionation using a low-cost microfluidic system. This project aims to understand particle focusing in inertial microfluidic systems to design efficient devices for cell sorting. The field of microfluidics could ultimately advance medical research but device design is primitive. Microfluidic particle separations are not thoroughly simulated before fabrication to predict performance. This project is expected to accelerate progress in design of efficient microfluidic devices. The knowledge and models developed in this project should help design and develop a microfluidic device for efficient fractionation of complex fluids into valuable components.Read moreRead less
Zinc finger domains as scaffolds for protein engineering. While great advances have been made in pharmaceutical design and discovery, it is clear that new types of drugs are needed for the better management of a wide range of diseases (e.g. cancers, autoimmune diseases, viral infections). Many of these diseases arise from inappropriate interactions between intracellular biological macromolecules. My aim is to develop a range of novel therapeutic proteins based on naturally existing zinc-binding ....Zinc finger domains as scaffolds for protein engineering. While great advances have been made in pharmaceutical design and discovery, it is clear that new types of drugs are needed for the better management of a wide range of diseases (e.g. cancers, autoimmune diseases, viral infections). Many of these diseases arise from inappropriate interactions between intracellular biological macromolecules. My aim is to develop a range of novel therapeutic proteins based on naturally existing zinc-binding protein domains with the goal of selectively blocking these inappropriate interactions. Additionally, these engineered proteins have potential uses as biochemical tools such as to help delineate the functions of natural proteins with no known functions.Read moreRead less
Diamond glass: An all-carbon technology for neural networks and biosensing. This project aims to use plasma deposition to synthesise diamond glass with the highest purity and the most diamond-like character so that it meets the strict requirements for emerging device applications. The extreme properties of diamond glass arise from the diamond-like bonding of the majority of its atoms. This amorphous, wide bandgap semiconductor is also the hardest known glass. The maximum diamond-like content pos ....Diamond glass: An all-carbon technology for neural networks and biosensing. This project aims to use plasma deposition to synthesise diamond glass with the highest purity and the most diamond-like character so that it meets the strict requirements for emerging device applications. The extreme properties of diamond glass arise from the diamond-like bonding of the majority of its atoms. This amorphous, wide bandgap semiconductor is also the hardest known glass. The maximum diamond-like content possible in diamond glass coatings is unknown, so determining its ultimate performance is difficult. Expected applications include medical diagnostics, non-volatile memories and programmable chips.Read moreRead less
Novel Motion Correction Technologies for Simultaneous Positron Emission Tomography and Magnetic Resonance Imaging. The recent development of the world's first prototype combined MR-PET scanner for human use has prompted immense interest. MR-PET is likely to revolutionize clinical diagnosis and basic research, by providing exquisite structural images co-registered with simultaneous functional PET images. We will exploit the as yet unexplored potential for motion information derived from the MR sy ....Novel Motion Correction Technologies for Simultaneous Positron Emission Tomography and Magnetic Resonance Imaging. The recent development of the world's first prototype combined MR-PET scanner for human use has prompted immense interest. MR-PET is likely to revolutionize clinical diagnosis and basic research, by providing exquisite structural images co-registered with simultaneous functional PET images. We will exploit the as yet unexplored potential for motion information derived from the MR system to be used to correct the simultaneously acquired PET data for patient motion. This research is an excellent opportunity for Australian researchers to make important contributions to an emerging technology with high economic potential, and will strengthen Australia's international position in engineering and biomedical systems development.Read moreRead less
Topography Optimisation of Implants for Enhancing Osseointegration. With recent increased life expectancy, the ratio of implant recipients to total population has dramatically increased. The project will address a critical issue in ensuring long-term success of prosthetic treatment. The proposed computational multiscale modelling will provide a sound scientific alternative means to optimisation of overall implant design including surface topography. The anticipated outcomes of this research will ....Topography Optimisation of Implants for Enhancing Osseointegration. With recent increased life expectancy, the ratio of implant recipients to total population has dramatically increased. The project will address a critical issue in ensuring long-term success of prosthetic treatment. The proposed computational multiscale modelling will provide a sound scientific alternative means to optimisation of overall implant design including surface topography. The anticipated outcomes of this research will help improve the quality of prosthetic therapy, and benefit our prosthodontic and orthopaedic professionals and their patients. The study clearly aligns with the national research goals of frontier technologies and maintaining good health.Read moreRead less
Novel technologies for motion-compensated simultaneous Magnetic Resonance Imaging (MRI) and Positron Emission Tomography (PET) imaging. The aim of this work is to develop motion tracking and motion correction techniques for an emerging hybrid imaging technology, MR-PET. The MR-PET scanner simultaneously acquires structural MR images and functional PET images. The work will provide clearer images without the effects of motion blur for both research and clinical applications.