Membrane-associated structure and the effect of metals on Abeta peptide from Alzheimer's disease. Alzheimer's disease currently affects 5% of Australians over 65, and will triple by year 2050 without an effective therapy. Much research to understand the causes of the disease has focused on the distinctive amyloid deposits found in patients' cerebral tissue. Recent evidence suggests that nerve cell death is actually directly caused by soluble forms of the protein fragments and metals that form th ....Membrane-associated structure and the effect of metals on Abeta peptide from Alzheimer's disease. Alzheimer's disease currently affects 5% of Australians over 65, and will triple by year 2050 without an effective therapy. Much research to understand the causes of the disease has focused on the distinctive amyloid deposits found in patients' cerebral tissue. Recent evidence suggests that nerve cell death is actually directly caused by soluble forms of the protein fragments and metals that form these deposits. We will investigate the specific molecular structure of these fragments with metals in relation to vesicles which mimic the nerve cell surface. This information may facilitate future biomedical efforts work to develop therapies, as well as develop general techniques to study similar structural problems.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
ARC Centre of Excellence - Coherent X-ray Science. The twenty first century is said to be the century of biology. And there is no doubt that the development of our understanding of biological system is continuing at a massive rate. However as our understanding deepens, we need to draw on the whole range of scientific disciplines to proceed. This Centre draws together a multidisciplinary team of world-leading scientists to address one the key questions in modern biology, the structure of a membra ....ARC Centre of Excellence - Coherent X-ray Science. The twenty first century is said to be the century of biology. And there is no doubt that the development of our understanding of biological system is continuing at a massive rate. However as our understanding deepens, we need to draw on the whole range of scientific disciplines to proceed. This Centre draws together a multidisciplinary team of world-leading scientists to address one the key questions in modern biology, the structure of a membrane protein. We will develop techniques based on the latest developments in theoretical physics & chemistry, imaging, biology and technology - including the new Australian Synchrotron - to create new approaches to structural biology.Read moreRead less
Coherent X-ray Science and Biophysics. The twenty first century is said to be the century of biology. And there is no doubt that the development of our understanding of biological system is continuing at a massive rate. However, as our understanding deepens, we need to draw on the whole range of scientific disciplines to proceed. This program draws together a multidisciplinary team of world-leading scientists to address one the key questions in modern biology, the structure of a membrane protein ....Coherent X-ray Science and Biophysics. The twenty first century is said to be the century of biology. And there is no doubt that the development of our understanding of biological system is continuing at a massive rate. However, as our understanding deepens, we need to draw on the whole range of scientific disciplines to proceed. This program draws together a multidisciplinary team of world-leading scientists to address one the key questions in modern biology, the structure of a membrane protein. We will develop techniques based on the latest developments in theoretical physics & chemistry, imaging, biology and technology - including the new Australian Synchrotron - to create new approaches to structural biology.Read moreRead less
Spectroscopy of complex and biological micro-objects for biosensing applications. The optically based test for specific DNA binding resulting from the conclusion of this project is of great potential benefit to all Australians as DNA is the building block of all living organisms. The technique developed and resulting biosensor will provide an invaluable tool for the determination and analysis of specific DNA reactions. The general technique developed for the genetic targeting of specific DNA rea ....Spectroscopy of complex and biological micro-objects for biosensing applications. The optically based test for specific DNA binding resulting from the conclusion of this project is of great potential benefit to all Australians as DNA is the building block of all living organisms. The technique developed and resulting biosensor will provide an invaluable tool for the determination and analysis of specific DNA reactions. The general technique developed for the genetic targeting of specific DNA reactions makes the detection of diseases and toxins like Chlamydia and anthrax, for example cheap, quick and accurate, keeping Australian's healthy, and strengthening national security.Read moreRead less
Diffractive Imaging using Soft X-rays and Electrons. Optical, electron and x-ray microscopy has yielded enormous biological insights and medical benefits to society. Optical microscopy is able to image live tissue, but at relatively low resolution. Electron microscopy can yield high resolution images, but only of highly prepared material. X-ray microscopy yields images of live tissue with a resolution that is intermediate between optical and electron microscopy. This project will provide Austral ....Diffractive Imaging using Soft X-rays and Electrons. Optical, electron and x-ray microscopy has yielded enormous biological insights and medical benefits to society. Optical microscopy is able to image live tissue, but at relatively low resolution. Electron microscopy can yield high resolution images, but only of highly prepared material. X-ray microscopy yields images of live tissue with a resolution that is intermediate between optical and electron microscopy. This project will provide Australian scientists with their first access to x-ray microscopy at its optimum wavelength; and secondly it will provide a superb testbed for x-ray microscopy to be enhanced using unique methods being developed in Australia.Read moreRead less
Design and Construction of Novel Thermal Interferometers. This project aims to invent thermal interferometers, which take advantage of the interference effect of thermal waves to display standing temperature interference fringes on a surface of prism. Two coherent thermal waves are input from two other surfaces of the prism in a similar way as an optical interferometer does. By inventing such a device, the project will demonstrate a new instrumentation mechanism which may lead to its applicati ....Design and Construction of Novel Thermal Interferometers. This project aims to invent thermal interferometers, which take advantage of the interference effect of thermal waves to display standing temperature interference fringes on a surface of prism. Two coherent thermal waves are input from two other surfaces of the prism in a similar way as an optical interferometer does. By inventing such a device, the project will demonstrate a new instrumentation mechanism which may lead to its application in medical technology. Furthermore, the principle of temperature localisation due to thermal interference may provide new insights to account for the cause of conformational changes of proteins that result in diseases.Read moreRead less
Optical manipulation of single molecules in nanocontainers and nanotubes. Modern medicine has benefited greatly from technological advances in instrumentation. The ability to probe and manipulate new aspects of biological function often provides unique information that can be used as the basis of new medical treatments. Recent advances in optical instrumentation and biochemical labelling has enabled the study of biological function at the single molecule level. This project proposes to develop n ....Optical manipulation of single molecules in nanocontainers and nanotubes. Modern medicine has benefited greatly from technological advances in instrumentation. The ability to probe and manipulate new aspects of biological function often provides unique information that can be used as the basis of new medical treatments. Recent advances in optical instrumentation and biochemical labelling has enabled the study of biological function at the single molecule level. This project proposes to develop new techniques in single molecule manipulation, to perform studies not easily addressable using current techniques. The proposed research will form the basis of an enabling technology for Australian researchers to make breakthroughs in biomedical research, potentially leading to improvements in healthcare.Read moreRead less
Membrane structure and lipid interactions of the pore-forming toxin Equinatoxin II by NMR. The structure of Equinatoxin II, a pore-forming protein, will be determined in model cell membranes using solid-state NMR spectroscopy. The relationship of molecular structure to bioactivity and the nature of the pore-forming mechanism of this toxin will be determined. The results will aid in understanding how toxins lyse cells and could lead to the design of improved antibiotic peptides. Currently the st ....Membrane structure and lipid interactions of the pore-forming toxin Equinatoxin II by NMR. The structure of Equinatoxin II, a pore-forming protein, will be determined in model cell membranes using solid-state NMR spectroscopy. The relationship of molecular structure to bioactivity and the nature of the pore-forming mechanism of this toxin will be determined. The results will aid in understanding how toxins lyse cells and could lead to the design of improved antibiotic peptides. Currently the structure of membrane proteins are difficult to determine and the newly developed techniques used for the structural determination of this membrane-associated protein will be suitable for studying other membrane proteins and receptors of pharmaceutical importance.Read moreRead less
Studying cell mechanics with a biophotonics-based tool. This study will help to promote and maintain good health. There is a connection between diseases such as arthritis and osteoporosis and cell mechanics. Our study will provide insight into cell mechanics, thereby helping to understand the pathophysiology of these diseases. The study is relevant to tissue engineering. There is ongoing research on mechanical conditioning of tissue substitutes. Understanding cell mechanics will help to optimise ....Studying cell mechanics with a biophotonics-based tool. This study will help to promote and maintain good health. There is a connection between diseases such as arthritis and osteoporosis and cell mechanics. Our study will provide insight into cell mechanics, thereby helping to understand the pathophysiology of these diseases. The study is relevant to tissue engineering. There is ongoing research on mechanical conditioning of tissue substitutes. Understanding cell mechanics will help to optimise conditioning protocols, thereby improving the properties of engineered tissue.
During this study we will develop optical tools that have applications in the life sciences, in the development of advanced materials and in nanotechnology. Our project will promote Australian research in these fields.Read moreRead less