Theoretical and experimental studies on magnetoelectroelastic bone remodelling process. The project combines biotechnology and material science which will have national economic, social and environment impact. It can benefit industry by providing knowledge that help scientists understand remodeling under coupled fields and is used to develop bone replacement. By better understanding remodeling due to multi-field loading, we can assist scientists in aeronautical industry in developing countermeas ....Theoretical and experimental studies on magnetoelectroelastic bone remodelling process. The project combines biotechnology and material science which will have national economic, social and environment impact. It can benefit industry by providing knowledge that help scientists understand remodeling under coupled fields and is used to develop bone replacement. By better understanding remodeling due to multi-field loading, we can assist scientists in aeronautical industry in developing countermeasures that reduce or eliminate bone loss resulting from long-duration space flight. It can provide knowledge that can be used to explore underlying mechanisms controlling bone remodeling and self-repair in gaining insight into debilitating diseases such as osteoporosis, to develop high-performance prosthetics for medical injury healing.Read moreRead less
Novel RF Controlled Electromechanical Microvalve. The significance of the proposed microvalve is its potential use in exciting biomedical applications such as in drug delivery and fertility control. For human body implantation, it must be batteryless, wireless and be made of a biofriendly-polymer. We propose to meet all three criteria, based on novel use of surface acoustic waves (SAWs) as the actuation mechanism in a polymer material. Energy for actuation will be supplied by a radio frequency ( ....Novel RF Controlled Electromechanical Microvalve. The significance of the proposed microvalve is its potential use in exciting biomedical applications such as in drug delivery and fertility control. For human body implantation, it must be batteryless, wireless and be made of a biofriendly-polymer. We propose to meet all three criteria, based on novel use of surface acoustic waves (SAWs) as the actuation mechanism in a polymer material. Energy for actuation will be supplied by a radio frequency (RF) signal. We propose to model, design and demonstrate the device in laboratory conditions. This will enable development of application specific designs in future programs, such as ARC linkage.Read moreRead less
Advanced fluid mechanics modelling of complex leukocyte-endothelial interactions. This project adopts an interdisciplinary approach toward understanding the mechanical interactions between blood cells and vessel walls, under different hydrodynamic conditions. Outcomes will have downstream benefits to vascular biology in relation to diagnosis of problems such as atherosclerotic plaques. These vascular problems are associated with several major health problems including coronary heart disease, h ....Advanced fluid mechanics modelling of complex leukocyte-endothelial interactions. This project adopts an interdisciplinary approach toward understanding the mechanical interactions between blood cells and vessel walls, under different hydrodynamic conditions. Outcomes will have downstream benefits to vascular biology in relation to diagnosis of problems such as atherosclerotic plaques. These vascular problems are associated with several major health problems including coronary heart disease, hypertension, stroke, diabetes and kidney dysfunction.Read moreRead less
Breaking The Wavelength Barrier: Near-Field T-ray Imaging. Australia will benefit from the interaction between engineering, physics, and biology to develop a new T-ray imaging system that will ultimately be able to probe microstructures, biological single cells or even neurons. The project will exploit a powerful new electrooptical technique for obtaining chemical 'fingerprints' at the cellular level. This breakthrough will be a fundamental step towards a system for probing disease states of sin ....Breaking The Wavelength Barrier: Near-Field T-ray Imaging. Australia will benefit from the interaction between engineering, physics, and biology to develop a new T-ray imaging system that will ultimately be able to probe microstructures, biological single cells or even neurons. The project will exploit a powerful new electrooptical technique for obtaining chemical 'fingerprints' at the cellular level. This breakthrough will be a fundamental step towards a system for probing disease states of single cells and will open up new lines of scientific enquiry. Ultimately, Australia will benefit from a new technology and new diagnostic biomedical techniques. This is potentially an enabling technology for future customised medicine, where rapid biochip sensing becomes foreseeable.Read moreRead less
Computer simulation techniques to reduce the incidence of femoral fracture after hip replacement surgery. Australia's ageing population is driving an increase of 5% to 10% a year in the number of primary total hip replacements. We will move beyond conventional surgical techniques, to deliver the science for an accurate, reliable computer-based system that is significantly more accurate and reliable. Optimising implant selection criteria to better match patients' activity levels and bone physiolo ....Computer simulation techniques to reduce the incidence of femoral fracture after hip replacement surgery. Australia's ageing population is driving an increase of 5% to 10% a year in the number of primary total hip replacements. We will move beyond conventional surgical techniques, to deliver the science for an accurate, reliable computer-based system that is significantly more accurate and reliable. Optimising implant selection criteria to better match patients' activity levels and bone physiology and minimise revision rates; this has major implications for the national health budget and patients' quality of life. Our advances will allow the implementation of improved surgical techniques that minimise the risk of implant related bone failure.Read moreRead less
Towards a miniaturised on-chip terahertz biosensing system. Terahertz (or T-ray) radiation is highly sensitive to minute changes in the molecular structure of many substances. Furthermore most packing materials are transparent to this new form of radiation. This implies enormous potential for T-rays in a range of applications from quality control via non-invasive contact-less chemical fingerprinting through to safety and security applications. A detailed study of the molecular vibrations that gi ....Towards a miniaturised on-chip terahertz biosensing system. Terahertz (or T-ray) radiation is highly sensitive to minute changes in the molecular structure of many substances. Furthermore most packing materials are transparent to this new form of radiation. This implies enormous potential for T-rays in a range of applications from quality control via non-invasive contact-less chemical fingerprinting through to safety and security applications. A detailed study of the molecular vibrations that give rise to these fingerprints will help chemists and biologists to learn more about the underlying molecular binding forces, impacting on wide applications for safe non-invasive sensing in the medical, security, chemical and food industries.Read moreRead less
Optimised distributed stimulation of muscle. The project aims to extend to humans, a method of producing a non-fatiguing, smooth, submaximal muscle contraction. The method using multiple electrodes, stimulated at different times, with those times being adjusted for optimum smoothness at low stimulation rates. This will enable the gathering of information about the mechanics of muscle undergoing near physiological contractions, which will be of interest to researchers in Biomechanics. It will ....Optimised distributed stimulation of muscle. The project aims to extend to humans, a method of producing a non-fatiguing, smooth, submaximal muscle contraction. The method using multiple electrodes, stimulated at different times, with those times being adjusted for optimum smoothness at low stimulation rates. This will enable the gathering of information about the mechanics of muscle undergoing near physiological contractions, which will be of interest to researchers in Biomechanics. It will also be a step towards the restoration of function to spinal cord injured patients.Read moreRead less
Rapid Development of Biocompatible Stent Grafts for Aortic Aneurysms. Weakening of the aorta may cause an aneurysm. The present technique of its treatment involves replacing the weakened portion of the aorta with a synthetic graft. Failure of this treatment often occurs due to non-compatibility of the stent graft with natural aorta. One possible reason for this is a mismatch between elastic natural aorta and the non-elastic artificial graft. The core component of our project is the selection and ....Rapid Development of Biocompatible Stent Grafts for Aortic Aneurysms. Weakening of the aorta may cause an aneurysm. The present technique of its treatment involves replacing the weakened portion of the aorta with a synthetic graft. Failure of this treatment often occurs due to non-compatibility of the stent graft with natural aorta. One possible reason for this is a mismatch between elastic natural aorta and the non-elastic artificial graft. The core component of our project is the selection and development of a suitable biomaterial and optimization of the stent design based on hemodynamics flow analysis and its fabrication with the Fused Deposition Modelling (FDM) process.Read moreRead less
A modelling challenge: bridging the gap between molecular and neuronal networks. We will develop innovative frameworks, which unify small-scale molecular activity with electrical signals in branches of brain cells. This research aims to enhance our understanding how molecular scale phenomena influence brain disease, via studying the model dynamics using cutting-edge techniques on a supercomputer. The socio-economic benefits to Australia include: (i) Enhancing Australia's international reputation ....A modelling challenge: bridging the gap between molecular and neuronal networks. We will develop innovative frameworks, which unify small-scale molecular activity with electrical signals in branches of brain cells. This research aims to enhance our understanding how molecular scale phenomena influence brain disease, via studying the model dynamics using cutting-edge techniques on a supercomputer. The socio-economic benefits to Australia include: (i) Enhancing Australia's international reputation for cutting-edge multidisciplinary research; (ii) international collaborations will be strengthened; (iii) outcomes will potentially lead to commercialisation opportunities; (iv) results will ultimately lay the foundations to explore the cellular and molecular origin of brain disorders.Read moreRead less
In Vitro Study of Hemodynamic Stresses and Endothelialization of Artificial Coronary Arteries. Restenosis (recurrence of the disease) is a major problem in the case of patients undergoing artificial artery by-pass surgery. Ideally the design for manufacturing the scaffold for cell adhesion of the artery should factor in hemodynamic forces and optimised geometry to withstand the hemodynamic stresses and other forces. This project aims to investigate the material for manufacturing the artificial a ....In Vitro Study of Hemodynamic Stresses and Endothelialization of Artificial Coronary Arteries. Restenosis (recurrence of the disease) is a major problem in the case of patients undergoing artificial artery by-pass surgery. Ideally the design for manufacturing the scaffold for cell adhesion of the artery should factor in hemodynamic forces and optimised geometry to withstand the hemodynamic stresses and other forces. This project aims to investigate the material for manufacturing the artificial artery using Fused Deposition Modeling and to develop methods for the establishment of endothelium on the artificial artery, concluding a restenosis-free solution for by-pass surgery. The knowledge gained through this work would be applicable to the design of other prosthetic devices.Read moreRead less