Electric field induced surface attachment and detachment of proteins. Microarrays are revolutionising the diagnosis of disease by enabling large amounts of data on genetics and protein expression to be obtained from one sample. Biosensors for diseases and toxins rely on the same mechanism, namely attachment of biological macromolecules to a surface. We propose a new method for controlling the attachment by micromachining an electrode system to apply an electric field to chosen sites. Ultimately ....Electric field induced surface attachment and detachment of proteins. Microarrays are revolutionising the diagnosis of disease by enabling large amounts of data on genetics and protein expression to be obtained from one sample. Biosensors for diseases and toxins rely on the same mechanism, namely attachment of biological macromolecules to a surface. We propose a new method for controlling the attachment by micromachining an electrode system to apply an electric field to chosen sites. Ultimately microelectronic engineering methods will be used. This will give control over the attachment process with potential benefits of orienting attaching molecules, minimising non-specific attachment and enriching diagnostics by enabling interrogation of the force of attachment.Read moreRead less
Sinusoidal voltage protocols for characterisation of ion channel kinetics. This project aims to implement an innovative approach to modelling ion channel behaviour that employs short, information-rich datasets and parameter inference. Using the hERG potassium channel as a test case, the project will show that this approach is more efficient than current methods and outperforms all published models in independent validations. The project aims to extend on initial implementation to probe the therm ....Sinusoidal voltage protocols for characterisation of ion channel kinetics. This project aims to implement an innovative approach to modelling ion channel behaviour that employs short, information-rich datasets and parameter inference. Using the hERG potassium channel as a test case, the project will show that this approach is more efficient than current methods and outperforms all published models in independent validations. The project aims to extend on initial implementation to probe the thermodynamics and pharmacology of ion channel gating. The anticipated outcomes are to grow fundamental knowledge of ion channel biophysics and ability to probe ion channel function in silico. The project will build on an emerging collaboration between international leaders in physiology, pharmacology, mathematics and computer modelling. The methodology and fundamental knowledge generated will significantly advance our understanding of the physiology and biophysics of ion channels, while the application of the method will have direct impact in the pharmaceutical industry and regulatory science.Read moreRead less
Beyond linear source-filter theory: how does the vocal tract affect the motion of the vocal folds? The human voice lies at the very core of human culture. Yet the way in which the vocal folds ('vocal cords') vibrate is only partly understood and the way in which sound waves within the vocal tract affect this vibration is almost unknown, beyond the fact that it is sometimes important. Using new and unique non-invasive techniques, we shall conduct acoustic experiments to measure properties of the ....Beyond linear source-filter theory: how does the vocal tract affect the motion of the vocal folds? The human voice lies at the very core of human culture. Yet the way in which the vocal folds ('vocal cords') vibrate is only partly understood and the way in which sound waves within the vocal tract affect this vibration is almost unknown, beyond the fact that it is sometimes important. Using new and unique non-invasive techniques, we shall conduct acoustic experiments to measure properties of the vocal folds and their interaction with the sound they produce in the vocal tract. This knowledge will solve some of the remaining puzzles about the voice. Practical applications will include exercises in voice control (especially for singers and orators) and potential applications in clinical diagnosis techniques.Read moreRead less
Creation of functional surfaces for biodevices and aerospace applications. Polymers are poised to become the materials of choice for a host of applications because of their lightness, strength, ease of forming and biocompatibility. The major challenge lies in optimising their surfaces for each application. For biodevices in particular, the surfaces must support a range of complex and specific interactions. This project will create new polymer surface modifications through innovations in plasma s ....Creation of functional surfaces for biodevices and aerospace applications. Polymers are poised to become the materials of choice for a host of applications because of their lightness, strength, ease of forming and biocompatibility. The major challenge lies in optimising their surfaces for each application. For biodevices in particular, the surfaces must support a range of complex and specific interactions. This project will create new polymer surface modifications through innovations in plasma science and technology. The outcomes will be new surfaces for diagnostic arrays in medicine, biosensors and durable polymer surfaces for low earth orbit.Read moreRead less
Understanding aerobic respiration: Models for the catalytic centre in proton-pumping heme-copper oxidases. This project tackles ?head on? a key challenge in contemporary biological inorganic chemistry, understanding how at the atomic level aerobic life uses oxygen. All life we see is aerobic, and thus the conceptual advances from this research will progress understanding of our world and ourselves? an important cultural goal. Advancing knowledge of such fundamental processes sits firmly in the a ....Understanding aerobic respiration: Models for the catalytic centre in proton-pumping heme-copper oxidases. This project tackles ?head on? a key challenge in contemporary biological inorganic chemistry, understanding how at the atomic level aerobic life uses oxygen. All life we see is aerobic, and thus the conceptual advances from this research will progress understanding of our world and ourselves? an important cultural goal. Advancing knowledge of such fundamental processes sits firmly in the area of the Research Priority Goal: Breakthrough Science. Postgraduate research students will be trained in sophisticated state-of-the-art theoretical and synthetic chemical methodologies. The project will enhance Australia's research capability in biological (inorganic) chemistry and promote Australia's standing in the International research community.Read moreRead less
A rational approach to a high-resolution structure of the multidrug transporter EmrE. Membrane proteins form only 0.3% of the available protein structures in the protein data bank (PDB), yet 30% of the proteins in the human genome and 50% of human drug targets are membrane proteins. Multidrug transporters are membrane proteins responsible for antibiotic resistance in humans. A high-resolution structure of a multidrug resistance protein, together with comprehensive biochemical characterization, w ....A rational approach to a high-resolution structure of the multidrug transporter EmrE. Membrane proteins form only 0.3% of the available protein structures in the protein data bank (PDB), yet 30% of the proteins in the human genome and 50% of human drug targets are membrane proteins. Multidrug transporters are membrane proteins responsible for antibiotic resistance in humans. A high-resolution structure of a multidrug resistance protein, together with comprehensive biochemical characterization, would enable a detailed understanding of how these protein functions. Potentially it could also aid in the development of specific inhibitors that would prevent EmrE (and perhaps other similar proteins) from carry out its harmful mission. Read moreRead less
Anandamide activated chloride channels in sensory neurons. We are seeking to understand how the nerve cells that sense our environment are regulated by signalling molecules produced by our body. Understanding how these cells function in normal conditions is essential as basis for understanding how they may function abnormally in physically stressful situations or in chronic pain conditions. The work may eventually lead to better treatments for a wide range of disorders that involve the sensory ....Anandamide activated chloride channels in sensory neurons. We are seeking to understand how the nerve cells that sense our environment are regulated by signalling molecules produced by our body. Understanding how these cells function in normal conditions is essential as basis for understanding how they may function abnormally in physically stressful situations or in chronic pain conditions. The work may eventually lead to better treatments for a wide range of disorders that involve the sensory nervous system. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0344441
Funder
Australian Research Council
Funding Amount
$390,000.00
Summary
New Generation Metalloenzyme Magnetic Circular Dichroism Spectrometer Systems. Funding is sought to enhance the existing collaborations between UQ, ANU, Sydney and other universities in the study of metal-centred molecules of biological interest through the construction of advanced magnetic circular dichroism (MCD) spectrometers. These facilities will be the best instruments of their kind, and will enable researchers at Australian institutions to enhance the quality of their research and remain ....New Generation Metalloenzyme Magnetic Circular Dichroism Spectrometer Systems. Funding is sought to enhance the existing collaborations between UQ, ANU, Sydney and other universities in the study of metal-centred molecules of biological interest through the construction of advanced magnetic circular dichroism (MCD) spectrometers. These facilities will be the best instruments of their kind, and will enable researchers at Australian institutions to enhance the quality of their research and remain internationally competitive through the application of modern MCD spectroscopic techniques to the study of metal-centred biomolecules. These facilities will drive a number of programs in the area of metalloenzyme and photosystem II research.Read moreRead less
Multiscale modelling: Applications to the Biomedical Sciences. 1) Significant reductions in the costs of developing pharmaceutical treatments, 2) Substantial reduction in hospitalisation costs, 3) Improved treatment of wounds, a significant cause of chronic ill-health which presently costs the Australian HealthCare System A$500,000,000/year.
Biomolecular films on silicon substrates. Construction of hybrid carbon-silicon devices in which molecular organic molecular films are covalently linked to silicon wafers. Biomolecular nanostructures on silicon wafers can be studied using unique impedance spectroscopy instrumentation that we have developed as well as X-ray and neutron reflectometry. The system will be used to study a variety of molecular films as well as molecularly tethered lipid bilayer membranes that mimic aspects of cell mem ....Biomolecular films on silicon substrates. Construction of hybrid carbon-silicon devices in which molecular organic molecular films are covalently linked to silicon wafers. Biomolecular nanostructures on silicon wafers can be studied using unique impedance spectroscopy instrumentation that we have developed as well as X-ray and neutron reflectometry. The system will be used to study a variety of molecular films as well as molecularly tethered lipid bilayer membranes that mimic aspects of cell membranes and these will be used to investigate the effect of sterols on such membranes.Read moreRead less