The fate of dietary selenium in vivo; a direct approach to linking chemical form with biological activity. Dietary selenium supplementation has great potential as a preventative treatment for a range of human health conditions, including cancer, that widely affect the Australian population. However, the adverse effects of such treatments are not fully recognised. This project will increase our knowledge of how selenium compounds are stored and utilised in the body and relate the information to c ....The fate of dietary selenium in vivo; a direct approach to linking chemical form with biological activity. Dietary selenium supplementation has great potential as a preventative treatment for a range of human health conditions, including cancer, that widely affect the Australian population. However, the adverse effects of such treatments are not fully recognised. This project will increase our knowledge of how selenium compounds are stored and utilised in the body and relate the information to clinical observations regarding dietary intake of selenium and other compounds. The new understanding generated will delineate the conditions for safe intake, so that the beneficial effects associated with selenium supplementation may be harnessed more effectively.Read moreRead less
Nanoprobe and Microprobe Spectroscopic Techniques in Drug Design, Probing Mechanisms of Diseases, and Bioinorganic Chemistry. Nanoprobe and microprobe spectroscopic techniques offer unparalleled opportunities to probe the structures and distributions of drugs, carcinogens, and biomolecules in cultured cells and tissues. Such techniques represent new frontiers in understanding in vivo metabolic processes at the molecular level, as well as providing unprecedented information on the metabolism and ....Nanoprobe and Microprobe Spectroscopic Techniques in Drug Design, Probing Mechanisms of Diseases, and Bioinorganic Chemistry. Nanoprobe and microprobe spectroscopic techniques offer unparalleled opportunities to probe the structures and distributions of drugs, carcinogens, and biomolecules in cultured cells and tissues. Such techniques represent new frontiers in understanding in vivo metabolic processes at the molecular level, as well as providing unprecedented information on the metabolism and distributions of pharmaceuticals and toxins involved in the treatment and cause of diseases, such as cancer. This project is aimed at pushing the boundaries of nanoprobe and microprobe (X-ray absorption, SRIXE, PIXE, Raman and two-photon fluorescence) techniques for such applications.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0775676
Funder
Australian Research Council
Funding Amount
$290,000.00
Summary
An X-ray Diffraction Facility for Molecular Structure Determination. Characterisation of new chemical compounds demands proof of molecular structure. Whether for the identification of a new drug candidate, a material with novel properties or in the exploration of previously unknown types of compounds, X-ray crystallography is the definitive technique for this purpose. This proposal is for an X-ray diffractometer that will significantly enhance the capabilities of all synthetic and natural produc ....An X-ray Diffraction Facility for Molecular Structure Determination. Characterisation of new chemical compounds demands proof of molecular structure. Whether for the identification of a new drug candidate, a material with novel properties or in the exploration of previously unknown types of compounds, X-ray crystallography is the definitive technique for this purpose. This proposal is for an X-ray diffractometer that will significantly enhance the capabilities of all synthetic and natural products chemistry research programs undertaken at the Universities of Queensland and Newcastle, all currently in receipt of ARC funding. This research is aligned with the ARC National Research Priorities, of Promoting and Maintaining Good Health and Frontier Technologies for Building and Transforming Australian Industries.Read moreRead less
Charting intercellular space. The space between the cells in our bodies is poorly understood. Chemical imbalances in this region are associated with many diseases, such as prostate cancer, Alzheimer's disease, sleep disorders and depression. This project combines synthetic chemistry and semiconductor technology to understand such imbalances, and their role in disease.
Probing and Developing Hypoxia-Selective Anti-Cancer Agents. The development of compounds that are effective in the treatment of cancer and are less toxic than existing drugs depends on the selective targeting of tumours. Solid tumours have poorly oxygenated regions which represent unique chemical environments that can be targeted using selectively activated compounds. In this project we will develop the first in situ methods for monitoring the activation state in solid tumours to establish the ....Probing and Developing Hypoxia-Selective Anti-Cancer Agents. The development of compounds that are effective in the treatment of cancer and are less toxic than existing drugs depends on the selective targeting of tumours. Solid tumours have poorly oxygenated regions which represent unique chemical environments that can be targeted using selectively activated compounds. In this project we will develop the first in situ methods for monitoring the activation state in solid tumours to establish the selectivity of activation. These results will be used to tune the properties of two novel classes of selectively activated compounds and thereby develop agents able to treat the most problematic of cancers.Read moreRead less
Microprobe and Nanoprobe Studies on Intracellular Disease Processes and Their Treatment. Breakthrough microprobe and nanoprobe technologies, involving X-ray, visible and infrared light can focus into different components of mammalian cells in order to interrogate the biochemistry that is occurring therein. Each of the different wavelengths of light provides complementary biochemical information that enables a deeper understanding of changes in cells that occur as a function of drug treatments an ....Microprobe and Nanoprobe Studies on Intracellular Disease Processes and Their Treatment. Breakthrough microprobe and nanoprobe technologies, involving X-ray, visible and infrared light can focus into different components of mammalian cells in order to interrogate the biochemistry that is occurring therein. Each of the different wavelengths of light provides complementary biochemical information that enables a deeper understanding of changes in cells that occur as a function of drug treatments and disease processes. This will provide unprecedented information as to where drugs go and how they are transformed inside cells that, in turn, may revolutionalise the way in which new drugs are designed that have higher specificity and fewer side effects.Read moreRead less
Nanoprobe and Microprobe Structural and Spectroscopic Studies in Biomedical Research. Breakthrough microprobe and nanoprobe technologies, involving X-ray, visible and infrared light can focus into different components of mammalian cells in order to interrogate the biochemistry that is occurring therein. Each of the different wavelengths of light provides complementary biochemical information that enables multi-layered information on changes in cells that occur as a function of drug treatments a ....Nanoprobe and Microprobe Structural and Spectroscopic Studies in Biomedical Research. Breakthrough microprobe and nanoprobe technologies, involving X-ray, visible and infrared light can focus into different components of mammalian cells in order to interrogate the biochemistry that is occurring therein. Each of the different wavelengths of light provides complementary biochemical information that enables multi-layered information on changes in cells that occur as a function of drug treatments and disease processes. This will provide unprecedented information as to where drugs go and how they are transformed inside cells that, in turn, may revolutionalise the way in which new drugs are designed that have higher specificity and lower side effects.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0560680
Funder
Australian Research Council
Funding Amount
$901,862.00
Summary
Vibrational Spectroscopy Microprobe/FESEM/AFM Imaging of Cells, Tissues and Materials. State-of-the-art vibrational mapping and imaging equipment (integrated with a field-emission scanning electron microscope (FESEM) and an atomic force microscope (AFM)) will provide enabling technologies for cutting-edge research in disease diagnosis, identification of pathogens, mapping of the entry and distribution of pharmaceutics into cells, and materials research. An InVia Renishaw Raman spectrometer (sub ....Vibrational Spectroscopy Microprobe/FESEM/AFM Imaging of Cells, Tissues and Materials. State-of-the-art vibrational mapping and imaging equipment (integrated with a field-emission scanning electron microscope (FESEM) and an atomic force microscope (AFM)) will provide enabling technologies for cutting-edge research in disease diagnosis, identification of pathogens, mapping of the entry and distribution of pharmaceutics into cells, and materials research. An InVia Renishaw Raman spectrometer (sub-micron spatial positioning and micron spatial resolution) will be interfaced to an FEI Quanta FESEM for combined Raman (spectroscopic), EDS and SEM (morphological) imaging/mapping at the sub-cellular level. Complementary new-generation Raman and IR spectrometer upgrades will provide an integrated world-class equipment platform.Read moreRead less
DNA Nanoshuttles: A New Class of DNA-Binding Molecules. The interaction of molecules with DNA, the molecule that controls genetic information, is fundamental to drug design, diagnosis of disease and the environment. DNA-nanoshuttles are ring-shaped molecules that thread onto DNA and shuttle from one end to the other. This threading interaction is without precedent and hence DNA-nanoshuttles have significant potential applications in all areas of medicine, biotechnology and nanotechnology that in ....DNA Nanoshuttles: A New Class of DNA-Binding Molecules. The interaction of molecules with DNA, the molecule that controls genetic information, is fundamental to drug design, diagnosis of disease and the environment. DNA-nanoshuttles are ring-shaped molecules that thread onto DNA and shuttle from one end to the other. This threading interaction is without precedent and hence DNA-nanoshuttles have significant potential applications in all areas of medicine, biotechnology and nanotechnology that involve DNA interactions. This research may lead to the design of new diagnostics and applications that will benefit the Australian community, and will provide excellent training of researchers in skills required for employment in the biotechnology and pharmaceutical fields.Read moreRead less
A modular toolkit of chemical probes for living cells. This project aims to develop a toolkit of fluorescent probes that can be assembled in a highly efficient ‘mix and match’ approach. Fluorescent probes allow unprecedented imaging of biological systems, but current probe design is inefficient due to a disconnection between those who make probes and those who use them. Novel fluorescent molecules will be designed and incorporated into new probes that are both selective for the chemical of inter ....A modular toolkit of chemical probes for living cells. This project aims to develop a toolkit of fluorescent probes that can be assembled in a highly efficient ‘mix and match’ approach. Fluorescent probes allow unprecedented imaging of biological systems, but current probe design is inefficient due to a disconnection between those who make probes and those who use them. Novel fluorescent molecules will be designed and incorporated into new probes that are both selective for the chemical of interest and targeted to the relevant subcellular location. This will advance knowledge across synthetic chemistry, photo-physics and chemical biology, and expand the scope of chemical tools available for imaging, underpinning advances throughout cellular physiology.Read moreRead less