Towards direct imaging of neuronal currents with MRI. This project aims to develop novel neuronal current magnetic resonance imaging (nc-MRI) methods that harness the oscillatory behaviour of neuronal magnetic fields. Current methods of detecting neuronal activity in the living human brain have limited spatial and temporal resolution. Use of nc-MRI aims to overcome these limitations by imaging the effects on the MRI signal of small transient magnetic fields associated with neuronal activity. Sig ....Towards direct imaging of neuronal currents with MRI. This project aims to develop novel neuronal current magnetic resonance imaging (nc-MRI) methods that harness the oscillatory behaviour of neuronal magnetic fields. Current methods of detecting neuronal activity in the living human brain have limited spatial and temporal resolution. Use of nc-MRI aims to overcome these limitations by imaging the effects on the MRI signal of small transient magnetic fields associated with neuronal activity. Signal-to-noise ratio is at the limits of detectability using current imaging systems and nc-MRI is yet to be convincingly demonstrated. An integrated framework for simulating nc-MRI in the visual cortex is expected to be developed.Read moreRead less
Platform technology to decode motor control through ultra high-field MRI. This project aims to advance our understanding of the poorly understood neural circuits that enable fine motor control in humans. To obtain this knowledge, new platform technology will be developed to capture the full kinematics of the hand during concurrent functional magnetic resonance imaging at ultra high-field. This device will allow testing of fundamental theories describing the canonical microcircuits involved in ha ....Platform technology to decode motor control through ultra high-field MRI. This project aims to advance our understanding of the poorly understood neural circuits that enable fine motor control in humans. To obtain this knowledge, new platform technology will be developed to capture the full kinematics of the hand during concurrent functional magnetic resonance imaging at ultra high-field. This device will allow testing of fundamental theories describing the canonical microcircuits involved in hand motion. Expected outcomes include new evidence of mirror neurons and observation of predictive error signals in the motor cortex. This new knowledge paves the way towards improved computer-brain interface technology which is likely to create benefits through translation to applications such as artificial limb control.Read moreRead less
A kinetic measuring system for assistive devices used in paediatric gait. Each year, a proportion of children are born who suffer from disabilities, which limits their ability to walk efficiently. Gait analysis can identify limiting factors in walking ability, and can assess the clinical outcome of treatments. Children who use assistive devices, such as walking frames, are denied the full benefits of gait analysis due to limitations in current equipment. This project addresses this need through ....A kinetic measuring system for assistive devices used in paediatric gait. Each year, a proportion of children are born who suffer from disabilities, which limits their ability to walk efficiently. Gait analysis can identify limiting factors in walking ability, and can assess the clinical outcome of treatments. Children who use assistive devices, such as walking frames, are denied the full benefits of gait analysis due to limitations in current equipment. This project addresses this need through the development of a portable, load-measuring instrument. When integrated with existing equipment, a comprehensive description of assisted walking gait will be possible. This will lead to greater understanding and improved treatment outcomes for such children.Read moreRead less
Convergence of biomaterials and immunology: a technology platform for delayed burst release of vaccines. A large challenge in vaccination, particularly in wildlife such as for the growing problem of Chlamydia in koalas, is to provide the necessary booster shots. This project will develop implants that will be inserted under the skin at the time of the first shot, and will spontaneously burst later to release the booster shot to provide protection.
Noval design of a Bi-Ventricular Assist Device (BVAD) Centrifugal Heart Pump as an Implantable Total Artificial Heart. In Australia, 40%(50,797) of all deaths each year are related to heart disease and accounted for 12% (A$4Billion) of total recurrent health expenditure. This innovative research aims at developing a single biventricular assist device (BVAD) driven by a magnetically suspended double-sided centrifugal pump impeller. Current techniques require two implantable devices, thus preventi ....Noval design of a Bi-Ventricular Assist Device (BVAD) Centrifugal Heart Pump as an Implantable Total Artificial Heart. In Australia, 40%(50,797) of all deaths each year are related to heart disease and accounted for 12% (A$4Billion) of total recurrent health expenditure. This innovative research aims at developing a single biventricular assist device (BVAD) driven by a magnetically suspended double-sided centrifugal pump impeller. Current techniques require two implantable devices, thus preventing smaller patients from access to BVAD technology. The expected outcomes will be a significantly small and compact device and provide an alternative to open-heart transplantation, thus helping to alleviate the demand on donor hearts, as well as the strain on the Australian Heath Care System caused by cardiovascular disease.Read moreRead less
Hybrid Sensor-based Physiological Control of an Implantable Rotary Blood Pump. With over 11 million people needing heart transplants worldwide and only 3000 donor hearts, an effective alternative therapy is needed. The Ventracor Ltd. rotary blood pump is one possible approach whereby a fully implantable mechanical device assists the failing heart. The innovative steps in this research proposal will be a means to robustly and safely control the speed of the pump to meet the metabolic needs of the ....Hybrid Sensor-based Physiological Control of an Implantable Rotary Blood Pump. With over 11 million people needing heart transplants worldwide and only 3000 donor hearts, an effective alternative therapy is needed. The Ventracor Ltd. rotary blood pump is one possible approach whereby a fully implantable mechanical device assists the failing heart. The innovative steps in this research proposal will be a means to robustly and safely control the speed of the pump to meet the metabolic needs of the body. Apart from the obvious health benefits for patients, this will provide the company with a huge market advantage that will also help to bolster the Australian medical device industry.Read moreRead less
Determination of Conductivity Values for Anisotropic Tissue. Well established mathematical models governing the electrical potential in biological tissue can be combined with measurements of the electric potential on the surface of the tissue to provide insight into subsurface tissue damage. However, before such observations can be convincingly accepted, reliable values for the tissue conductivity must be obtained. The aim of this project is to develop mathematical techniques to calculate the co ....Determination of Conductivity Values for Anisotropic Tissue. Well established mathematical models governing the electrical potential in biological tissue can be combined with measurements of the electric potential on the surface of the tissue to provide insight into subsurface tissue damage. However, before such observations can be convincingly accepted, reliable values for the tissue conductivity must be obtained. The aim of this project is to develop mathematical techniques to calculate the conductivity values so that one can apply the equations to solve problems of potential distribution and proceed to accurately simulate electrical potential distributions in damaged tissue. More accurate and reliable conductivity values will allow a better understanding of the way electric current moves through the heart which, in turn, will result in more efficient defibrillators and better diagnosis of abnormal function.Read moreRead less
Real-time cardiac magnetic resonance imaging: a compressed-sensing framework incorporating sensor design and multidimensional signal reconstruction. Conventional Magnetic Resonance Imaging (MRI) technology is fundamentally constrained by slow scan speeds. Taking a new approach to cardiac imaging - which integrates MRI hardware design with a novel dynamic imaging method based on compressed sensing - this project enables faster and more accurate dynamic imaging for the diagnosis of heart disease.
Improving immune response to vaccines by selective targeting of epithelial regions with the Nanopatch. Vaccination protects us from infections like measles and flu. In principle, it could protect us from all diseases, even from skin cancer and arthritis. In practice, however, vaccines to diseases like cancer have largely proved ineffective. One problem is that we don't really understand how the body's immune system responds to vaccination. Our aim, therefore, is to investigate changes in the imm ....Improving immune response to vaccines by selective targeting of epithelial regions with the Nanopatch. Vaccination protects us from infections like measles and flu. In principle, it could protect us from all diseases, even from skin cancer and arthritis. In practice, however, vaccines to diseases like cancer have largely proved ineffective. One problem is that we don't really understand how the body's immune system responds to vaccination. Our aim, therefore, is to investigate changes in the immune system when a vaccine enters the skin, as might happen by injection. Experimenting with laboratory mice and a special vaccine-injecting Nanopatch that is attached to each mouse's ear, we are starting to understand how a vaccine affects the immune cells in the skin. In the future we plan to apply this knowledge to improve vaccination in people.Read moreRead less
Optimising the body's immune response with a Nanopatch that delivers biomolecules to the skin. The team is developing a new improved way to vaccinate against deadly infectious diseases such as influenza and malaria. They believe their Nanopatch technology will boost the power of seasonal influenza vaccination and could even solve vaccine shortages in an influenza pandemic. This is because the Nanopatch needs much less vaccine per person than a conventional syringe. They also predict that vaccine ....Optimising the body's immune response with a Nanopatch that delivers biomolecules to the skin. The team is developing a new improved way to vaccinate against deadly infectious diseases such as influenza and malaria. They believe their Nanopatch technology will boost the power of seasonal influenza vaccination and could even solve vaccine shortages in an influenza pandemic. This is because the Nanopatch needs much less vaccine per person than a conventional syringe. They also predict that vaccines delivered with a Nanopatch will require less refrigeration than conventional vaccines and can be safely administered by individuals without medical training, making the benefits of vaccination accessible to more people more cheaply, even in remote areas.Read moreRead less