Shape-Shifting Molecules: Photoisomerization Action Spectroscopy. This project aims to examine molecules that change shape in response to light in order to gain insight into the biological processes they control. Many biological systems, including the human visual apparatus and bacterial photosynthesis, depend on molecules that change shape in response to light. The project plans to probe shape-shifting molecules with laser light while they are propelled through gas by an electric field. Light-i ....Shape-Shifting Molecules: Photoisomerization Action Spectroscopy. This project aims to examine molecules that change shape in response to light in order to gain insight into the biological processes they control. Many biological systems, including the human visual apparatus and bacterial photosynthesis, depend on molecules that change shape in response to light. The project plans to probe shape-shifting molecules with laser light while they are propelled through gas by an electric field. Light-induced changes in molecular shape produce detectable variations in drift speed. The ensuing knowledge would help calibrate computational approaches for predicting molecular function. It would also establish foundations for understanding essential biological molecules, including retinals, carotenes and peptides, and for developing new light-activated molecular motors and switches.Read moreRead less
Advanced X-ray investigation of atomic and condensed matter science for Australian industry and scientific research. This project aims to improve the precision and calibration of measurements involving X-rays. This in turn will improve outcomes and instrumentation which utilise X-ray sources to probe structures and properties of advanced materials and biological samples.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100174
Funder
Australian Research Council
Funding Amount
$800,000.00
Summary
Innovative synchrotron science - program for access to the Australian National Beamline Facility and cutting-edge beamlines at international synchrotrons. Synchrotron science dramatically affects the community through the innovative scientific, engineering and medical research outcomes it produces. This program for access to synchrotron beamlines is aimed at enhancing Australia's high international standing in synchrotron science and will have many flow-on effects in areas such as health and ind ....Innovative synchrotron science - program for access to the Australian National Beamline Facility and cutting-edge beamlines at international synchrotrons. Synchrotron science dramatically affects the community through the innovative scientific, engineering and medical research outcomes it produces. This program for access to synchrotron beamlines is aimed at enhancing Australia's high international standing in synchrotron science and will have many flow-on effects in areas such as health and industry.Read moreRead less
Signature of vibrational motions encoded into small polyatomic spectra. Using revolutionary state-of-the-art spectrometers, the project plans to search for signatures of large-amplitude vibrational motions that transform one chemical species to another. Bond-breaking chemical reactions necessarily involve highly vibrationally excited reactants and/or products that move the energy of the system away from equilibrium. It is now possible for direct measurements to be made of the changes that a mole ....Signature of vibrational motions encoded into small polyatomic spectra. Using revolutionary state-of-the-art spectrometers, the project plans to search for signatures of large-amplitude vibrational motions that transform one chemical species to another. Bond-breaking chemical reactions necessarily involve highly vibrationally excited reactants and/or products that move the energy of the system away from equilibrium. It is now possible for direct measurements to be made of the changes that a molecule undergoes as it transits across a chemical potential energy barrier. The project plans to examine the long-standing problem of vinylidene-acetylene isomerisation in order to verify the long-suspected existence of large amplitude vibrational motion in small molecules, which are thought to be the signatures of a particular class of chemical dynamics. These would provide a rational basis for future control of unimolecular chemical reactions.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE130101441
Funder
Australian Research Council
Funding Amount
$365,219.00
Summary
Thinking outside the box: spherical geometry in chemistry and physics. Spherical models are extremely powerful for understanding, explaining and predicting physical and chemical phenomena. This work takes advantage of the spherical model superiority to tackle some fundamental unsolved problems in physics and chemistry, and this will lead to new insights in their field.
Ions in the Fire: Laser Spectroscopy of Cryogenically Cooled Molecular Ions. This project will combine sophisticated laser and mass spectrometric techniques to probe the structure and function of cryogenically cooled biological molecules that are the core operational units for vision, photosynthesis and protein labelling. Knowledge gained from the project will be used to calibrate modern computational approaches to describing and predicting molecular function. It is expected that the project wil ....Ions in the Fire: Laser Spectroscopy of Cryogenically Cooled Molecular Ions. This project will combine sophisticated laser and mass spectrometric techniques to probe the structure and function of cryogenically cooled biological molecules that are the core operational units for vision, photosynthesis and protein labelling. Knowledge gained from the project will be used to calibrate modern computational approaches to describing and predicting molecular function. It is expected that the project will provide foundations for understanding and optimising the biological systems upon which life depends, and for developing new light-activated molecular devices including molecular motors, switches and energy harvesting systems.Read moreRead less
Trapped Ion Imaging for Biomolecular Dynamics. The functionality of large biological molecules is driven by their chemical composition and the folded shape of their active form. The higher-order structure and dynamics of nucleic acids, proteins, carbohydrates, and lipids drives the chemistry of life. Combining single molecule microscopy and trapped ion mass spectroscopy will develop a new tool for precision measurements of higher-order folding dynamics in large biomolecules. Optical techniques i ....Trapped Ion Imaging for Biomolecular Dynamics. The functionality of large biological molecules is driven by their chemical composition and the folded shape of their active form. The higher-order structure and dynamics of nucleic acids, proteins, carbohydrates, and lipids drives the chemistry of life. Combining single molecule microscopy and trapped ion mass spectroscopy will develop a new tool for precision measurements of higher-order folding dynamics in large biomolecules. Optical techniques including Förster resonance energy transfer and super-resolution imaging can register changes in shape down to the nanometer scale. The uniquely adaptable ion trap environment enables manipulation of the surrounding solvent cage, temperature, and net charge down to the single quantum level. Read moreRead less
Accurate and fast quantum simulation to predict chemistry. Quantum mechanical simulation is the most accurate tool available for predicting and understanding chemical reactions. Traditional techniques for performing quantum mechanical simulations of molecular collisions and reactions cannot be applied to more than five or six atoms, meaning that it is not possible to study most chemical reactions in full detail. In this project a new technique for performing these accurate simulations, recently ....Accurate and fast quantum simulation to predict chemistry. Quantum mechanical simulation is the most accurate tool available for predicting and understanding chemical reactions. Traditional techniques for performing quantum mechanical simulations of molecular collisions and reactions cannot be applied to more than five or six atoms, meaning that it is not possible to study most chemical reactions in full detail. In this project a new technique for performing these accurate simulations, recently invented at the Australian National University and allowing the study of much larger systems, will be developed and applied to important outstanding problems in chemical dynamics, ranging from roaming in formaldehyde to atom migration in proteins.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE200100151
Funder
Australian Research Council
Funding Amount
$744,000.00
Summary
Multi-kilohertz laser for attosecond and ultrafast science. Griffith University's Australian Attosecond Science Facility was established 12 years ago to facilitate internationally leading research into strong-field laser science. The facility is unique in Australia as it has the capability to precisely manipulate highly-amplified and ultra-short light pulses to investigate the dynamics of matter. The scientific outputs from the facility have delivered important new scientific advances in strong ....Multi-kilohertz laser for attosecond and ultrafast science. Griffith University's Australian Attosecond Science Facility was established 12 years ago to facilitate internationally leading research into strong-field laser science. The facility is unique in Australia as it has the capability to precisely manipulate highly-amplified and ultra-short light pulses to investigate the dynamics of matter. The scientific outputs from the facility have delivered important new scientific advances in strong-field physics enabling the development of new technologies. This grant will be used to procure an upgraded laser system enabling an order of magnitude enhancement of the output light for the next-generation research and maintaining international competitiveness of Australian investigators in this field.Read moreRead less
Understanding molecular negative ion production for use in pathology. The project aims to increase the yield of molecular negative ion sources by improving our understanding of the formation of ion beams from plasma sources and expand our knowledge of molecular negative ion generation in plasma environments leading to brighter ion beams. For example, understanding cancer requires cellular level tools to map how cells are changing. These maps are made using ion beams which are scanned across cell ....Understanding molecular negative ion production for use in pathology. The project aims to increase the yield of molecular negative ion sources by improving our understanding of the formation of ion beams from plasma sources and expand our knowledge of molecular negative ion generation in plasma environments leading to brighter ion beams. For example, understanding cancer requires cellular level tools to map how cells are changing. These maps are made using ion beams which are scanned across cells to remove material that is analysed at the atomic and molecular level. Ion beams are produced from plasma sources, but much of their operation is not understood. Such improved ion beams are expected to enable inexpensive and fast cellular level pathology at even small hospitals to tackle cancer for society’s benefit.Read moreRead less