Optical Spectroscopy of Extraterrestrial Molecules. Space is not empty. In the vast regions between stars is a complex soup of molecules. Some of these molecules get incorporated into meteorites and find their way to Earth where they can be identified. Analysis has yielded amino acids; the building blocks of life, but these molecules do not match what we know about the interstellar regions. Interstellar molecules are identified by their spectra, but many features in these spectra are unknown. ....Optical Spectroscopy of Extraterrestrial Molecules. Space is not empty. In the vast regions between stars is a complex soup of molecules. Some of these molecules get incorporated into meteorites and find their way to Earth where they can be identified. Analysis has yielded amino acids; the building blocks of life, but these molecules do not match what we know about the interstellar regions. Interstellar molecules are identified by their spectra, but many features in these spectra are unknown. Could they be caused by the missing molecules? In this project we combine the skills of three spectroscopists, each expert in different areas, in an attempt to make these molecules in the laboratory, measure their spectra and thereby identify these unknown molecules that are in space.Read moreRead less
Making Silicon Even More Useful: Functionalising Silicon to Produce Stable Electronic Devices in Aqueous Environments. Silicon is the wonder material of our time, being the foundation upon which our electronics and device industries are based. Silicon however would be even more useful if it could be stabilised so the surface did not oxidise in air and water. If this oxidation could be prevented silicon could be used in a whole range of new devices related to biotechnology, molecular electronics ....Making Silicon Even More Useful: Functionalising Silicon to Produce Stable Electronic Devices in Aqueous Environments. Silicon is the wonder material of our time, being the foundation upon which our electronics and device industries are based. Silicon however would be even more useful if it could be stabilised so the surface did not oxidise in air and water. If this oxidation could be prevented silicon could be used in a whole range of new devices related to biotechnology, molecular electronics and sensing. The project will develop a viable surface chemistry strategy for achieving this stabilisation and hence will greatly expand the scope of devices which can be fabricated from silicon. This will have significant scientific and economic benefits for Australia. We will exploit this new capability for cancer detection, cell engineering and biosensing.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989567
Funder
Australian Research Council
Funding Amount
$500,000.00
Summary
State of the Art Surface Characterisation Facility for the Sydney Basin. Many of the grand challenges of our time, including finding alternative sources of energy, maximizing our current supply of natural resources, identifying and treating pollution in general, and in water in particular, and developing therapies and biomaterials that enable the personalisation of therapies to each individual are being solved using developments in the molecular sciences. Pivotal to the success of such research ....State of the Art Surface Characterisation Facility for the Sydney Basin. Many of the grand challenges of our time, including finding alternative sources of energy, maximizing our current supply of natural resources, identifying and treating pollution in general, and in water in particular, and developing therapies and biomaterials that enable the personalisation of therapies to each individual are being solved using developments in the molecular sciences. Pivotal to the success of such research is to understand materials and surfaces at the molecular level. The request is to purchase surface analysis instrumentation which will dramatically enhance the ability of scientists around Australia understand how to develop solutions to these grand challenges.Read moreRead less
Understanding Electron Transfer through Surface Bound Rigid Molecular Constructs: From Fundamental Studies to New Sensing and Photovoltaic Applications. Electron transfer is not only a vital process in biological systems but is the cornerstone of the new generation of nanoscale devices such as molecular electronics, photovoltaic devices and biosensors. For most applications electron transfer occurs close to a surface but the influence of the surface is not well understood. This project aims ....Understanding Electron Transfer through Surface Bound Rigid Molecular Constructs: From Fundamental Studies to New Sensing and Photovoltaic Applications. Electron transfer is not only a vital process in biological systems but is the cornerstone of the new generation of nanoscale devices such as molecular electronics, photovoltaic devices and biosensors. For most applications electron transfer occurs close to a surface but the influence of the surface is not well understood. This project aims to increase our understanding of the role of surfaces on the electron transfer behaviour using a novel range of rigid 'molecular wires'. The knowledge gained will be exploited in the development of novel biosensors for environmental and health monitoring and new highly efficient solar cells for energy conversion.Read moreRead less
A Generic Solution for Interfacing Electrodes with Biological Media. Electrodes are the critical element of stimulating implantable devices such as cardiac pacemakers, bionic eyes and cochlear implants, the most commercially successful biosensors, and are emerging as key to new technologies for testing new drug leads using cells. In all these applications of electrodes in biology there has never been a solution to stopping unwanted adsorption of biological material onto the electrode that does ....A Generic Solution for Interfacing Electrodes with Biological Media. Electrodes are the critical element of stimulating implantable devices such as cardiac pacemakers, bionic eyes and cochlear implants, the most commercially successful biosensors, and are emerging as key to new technologies for testing new drug leads using cells. In all these applications of electrodes in biology there has never been a solution to stopping unwanted adsorption of biological material onto the electrode that does not dramatically decrease electrode performance. The proposed research finally provides a solution via surface modification. This strategy will enhance the performance of all the devices above and will open doors to new applications of electrochemistry within biology.Read moreRead less
The Application of Chemical Force Microscopy for Monitoring DNA Hybridization: A New Sensing Concept Capable of Detecting Single Molecules. This proposal outlines a method of monitoring DNA sequences with such high sensitivity that a single molecule may be detected. Such sensitivity is achieved using an atomic force microscope (AFM) to measure surface forces. Modifying an AFM tip with a single strand of DNA allows the complementary strand (the target) to be recognized via hybridization to form ....The Application of Chemical Force Microscopy for Monitoring DNA Hybridization: A New Sensing Concept Capable of Detecting Single Molecules. This proposal outlines a method of monitoring DNA sequences with such high sensitivity that a single molecule may be detected. Such sensitivity is achieved using an atomic force microscope (AFM) to measure surface forces. Modifying an AFM tip with a single strand of DNA allows the complementary strand (the target) to be recognized via hybridization to form the double helix. The occurrence of hybridization is determined by differences in surface force measurements compared with when only the single strand of DNA is present. In this way DNA samples can be analyzed without amplification; a major advance for DNA diagnostics.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
Gas phase studies of reactive organic radicals: a novel approach using mass spectrometry. Radical reactions play a crucial role in a range of important chemistries, ranging from the formation of photochemical smog to the accumulation of pathogens in the ageing body. Despite their importance, the reactions of many radicals are poorly understood because of current experimental limitations. In this project we propose to develop two new and broadly applicable techniques for probing radical chemistry ....Gas phase studies of reactive organic radicals: a novel approach using mass spectrometry. Radical reactions play a crucial role in a range of important chemistries, ranging from the formation of photochemical smog to the accumulation of pathogens in the ageing body. Despite their importance, the reactions of many radicals are poorly understood because of current experimental limitations. In this project we propose to develop two new and broadly applicable techniques for probing radical chemistry in the gas phase via novel applications of mass spectrometry. Combined with quantum chemical calculations and state-of-the-art thermodynamic measurements these methods will provide a comprehensive understanding of the reactivity of key organic radicals.Read moreRead less
Highly efficient X-ray storage phosphor for medical and scientific imaging. X-rays are invaluable in medical diagnostics. For example, they are widely used in breast screening programs. However,they can cause cancer even at low doses. Consequently there is a global effort to reduce the X-ray dose by exploring more efficient imaging technologies. The present proposal seeks to exploit our recent discovery of a highly efficient storage phosphor that has the potential to facilitate substantial X-r ....Highly efficient X-ray storage phosphor for medical and scientific imaging. X-rays are invaluable in medical diagnostics. For example, they are widely used in breast screening programs. However,they can cause cancer even at low doses. Consequently there is a global effort to reduce the X-ray dose by exploring more efficient imaging technologies. The present proposal seeks to exploit our recent discovery of a highly efficient storage phosphor that has the potential to facilitate substantial X-ray dose reduction; this is of greatest significance to the general population. Also, the phosphor facilitates higher resolution images, a feature that is highly important in scientific imaging. This project may lead to substantial revenue streams for the nation because it taps into a global multibillion dollar industry.Read moreRead less