Engineering drug transportation behaviour in polymeric gel systems. In collaboration with Seagull Technologies, this project aims to engineer, study and mathematically model ultrasound-assisted biomacromolecule transport behaviour within polymeric gel systems, which may be useful in new drug delivery methods. The intended outcome is a novel set of polymeric gel systems, which can reversibly bind a wide variety of drugs (small molecules, nucleic acid based drugs, proteins), in which drug release ....Engineering drug transportation behaviour in polymeric gel systems. In collaboration with Seagull Technologies, this project aims to engineer, study and mathematically model ultrasound-assisted biomacromolecule transport behaviour within polymeric gel systems, which may be useful in new drug delivery methods. The intended outcome is a novel set of polymeric gel systems, which can reversibly bind a wide variety of drugs (small molecules, nucleic acid based drugs, proteins), in which drug release is triggered by an electric potential and drug transport is controlled by means of sonophoresis. The main advantage of drug delivery via sonophoresis is elimination of risks associated with injections such as infection and damage to local tissue, and elimination of patient discomfort, pain and fear.Read moreRead less
Next generation closed-loop brain-machine interfaces . Our partners Carbon Cybernetics have developed high-density neural recording and stimulation arrays that employ fine carbon fibres as the electrode material. The aim of the project is to exploit the properties of these materials to develop miniature implantable devices that are able to achieve long-term, closed-loop, high-resolution recording and stimulation within the brain. We aim to demonstrate an advanced algorithm for control of neural ....Next generation closed-loop brain-machine interfaces . Our partners Carbon Cybernetics have developed high-density neural recording and stimulation arrays that employ fine carbon fibres as the electrode material. The aim of the project is to exploit the properties of these materials to develop miniature implantable devices that are able to achieve long-term, closed-loop, high-resolution recording and stimulation within the brain. We aim to demonstrate an advanced algorithm for control of neural function. Devices that interface directly with the brain are increasingly important in neuroscience to understand how the brain processes information and creates memories and self awareness and are critically important to the development of technologies that interface electronics with the human body. Read moreRead less
Connecting man to machine: Wireless brain-machine interface. This project aims to enable direct wireless transmission of brain signals leading to reliable thought control of computers, wheelchairs, exoskeletons and vehicles. Such technology is currently limited by the fidelity, reliability, safety and longevity of the electrodes used to record signals from the brain. Partner organisation, SmartStent, has developed a novel stent-based electrode array which allows the extraction of high fidelity n ....Connecting man to machine: Wireless brain-machine interface. This project aims to enable direct wireless transmission of brain signals leading to reliable thought control of computers, wheelchairs, exoskeletons and vehicles. Such technology is currently limited by the fidelity, reliability, safety and longevity of the electrodes used to record signals from the brain. Partner organisation, SmartStent, has developed a novel stent-based electrode array which allows the extraction of high fidelity neural information without risky brain surgery and implant rejection. The project aims to combine SmartStent's stent-electrode technology with the diamond materials technology developed by the research team for hermetic encapsulation of electronics.Read moreRead less
High-fidelity, long lasting, single-neuron brain machine interfaces. The ability to conduct stable, high resolution recording and stimulation within the brain is critically important to the development of technologies that interface electronics with the human body. Devices that interface directly with the brain are increasingly important in brain research, medical monitoring, treatment of neurological diseases or the enormous increase in brain-machine interface technologies. Carbon Cybernetics h ....High-fidelity, long lasting, single-neuron brain machine interfaces. The ability to conduct stable, high resolution recording and stimulation within the brain is critically important to the development of technologies that interface electronics with the human body. Devices that interface directly with the brain are increasingly important in brain research, medical monitoring, treatment of neurological diseases or the enormous increase in brain-machine interface technologies. Carbon Cybernetics have developed a high-density neural recording and stimulation array that employs fine carbon fibres as the electrode material. We aim to show that this array can record from the brain indefinitely, without loosing signal quality, and the same array can be used to stimulate the brain to recreate memories or sensations.Read moreRead less
Biomimetic blood bag materials for prolonged platelet storage. Platelet storage is limited to five to seven days before there is a reduction in viable platelets. This results in a continual mismatch between supply and demand resulting in patients in remotes areas or those that have rare phenotypes missing out on platelets. It also results in the wastage of platelets because they expire before they can be used clinically. This project aims to extend the platelet shelf life beyond seven days by de ....Biomimetic blood bag materials for prolonged platelet storage. Platelet storage is limited to five to seven days before there is a reduction in viable platelets. This results in a continual mismatch between supply and demand resulting in patients in remotes areas or those that have rare phenotypes missing out on platelets. It also results in the wastage of platelets because they expire before they can be used clinically. This project aims to extend the platelet shelf life beyond seven days by developing biomimetic blood bag materials that reflect the natural molecular structures of blood vessels through the use of novel synthetic and biological materials. With the realisation of longer platelet storage times, this project aims to have significant impacts on the health and economic benefits of Australians.Read moreRead less
A novel approach to the design and fabrication of biomimetic and biocompatible Ti-Ta implants by additive manufacturing. A large number of the Australian population suffer various types of bone issues arising from either age-related degenerative bone problems or injuries from accidents, sports and other activities. As the number of joint replacements performed in Australia increases, it is important to reduce the rate of implant failure. This project aims to address this critical issue by combin ....A novel approach to the design and fabrication of biomimetic and biocompatible Ti-Ta implants by additive manufacturing. A large number of the Australian population suffer various types of bone issues arising from either age-related degenerative bone problems or injuries from accidents, sports and other activities. As the number of joint replacements performed in Australia increases, it is important to reduce the rate of implant failure. This project aims to address this critical issue by combining unique multi-scale structural design, alloy development, 3D printing, modelling and tissue engineering to develop bone-like biomimetic titanium implants with superior structural, mechanical and biological compatibility with bone. The outcomes aim to contribute to both healthcare and manufacturing industries, as well as improving the quality of life for Australians.Read moreRead less
Understanding platinum dissolution in biomedical stimulating electrodes. Platinum is the main material used in electrodes for neurostimulators like the cochlear implant. Platinum electrodes can experience dissolution during implantation, which can impact on their function. The mechanisms governing this dissolution process are complex and still not fully understood. This research aims to understand the chemical, electrical and biological factors that impact on platinum dissolution in electrodes. ....Understanding platinum dissolution in biomedical stimulating electrodes. Platinum is the main material used in electrodes for neurostimulators like the cochlear implant. Platinum electrodes can experience dissolution during implantation, which can impact on their function. The mechanisms governing this dissolution process are complex and still not fully understood. This research aims to understand the chemical, electrical and biological factors that impact on platinum dissolution in electrodes. It will also develop new 3D models to simulate conditions in the human body for more rapid testing of electrodes. The new knowledge generated will improve the accuracy of predictions of platinum dissolution, develop new approaches for minimising dissolution, and contribute to reducing need for animal experimentation.Read moreRead less
Microstructural-Functional Effect of Silver Diammine Fluoride on Apatites. This project aims to develop a fundamental understanding at the nanostructural level of the factors that contribute to the enhanced mineralisation and mechanical properties of dentine and enamel following the treatment with silver diammine fluoride (SDF). A variety of advanced nanomechanical, tomographic and microscopic techniques will be used to characterise sound, carious and SDF treated tissue. The new biomechanical ev ....Microstructural-Functional Effect of Silver Diammine Fluoride on Apatites. This project aims to develop a fundamental understanding at the nanostructural level of the factors that contribute to the enhanced mineralisation and mechanical properties of dentine and enamel following the treatment with silver diammine fluoride (SDF). A variety of advanced nanomechanical, tomographic and microscopic techniques will be used to characterise sound, carious and SDF treated tissue. The new biomechanical evidence on the underlying mechanisms, alternative protocols, delivery systems enable to optimise the treatment. The scientific insights into arresting/repairing damage processes will provide critical data for developing minimal intervention protocols for pediatric and geriatric populations.Read moreRead less
A novel electrospraying technology platform for controlled and targeted growth factor delivery. This project will develop a new growth factor delivery strategy to stimulate bone regeneration. The project will utilise the technique of electrospraying to create small dissolving polymer microspheres containing bone-relevant growth factors, which are released gradually as the polymer degrades after implantation into a bone defect site to promote healing.
Biological determinants of the safety and stability of neuroprosthetic stimulation electrodes. Performance of cochlear implants and the quality of sound perceived by patients is strongly related to electrode impedance. Electrode impedance fluctuates relative to the implant electrical activity, but the mechanisms which cause this are not clear. This project aims to investigate the role of protein adsorption in electrode performance, including impedance and material dissolution. To enable these in ....Biological determinants of the safety and stability of neuroprosthetic stimulation electrodes. Performance of cochlear implants and the quality of sound perceived by patients is strongly related to electrode impedance. Electrode impedance fluctuates relative to the implant electrical activity, but the mechanisms which cause this are not clear. This project aims to investigate the role of protein adsorption in electrode performance, including impedance and material dissolution. To enable these investigations a new biomimetic analogue of the perilymph (cochlea fluid) is intended to be developed. Additionally, the project aims to investigate two strategies to minimise impedance changes: small pulse electrode cleaning and antifouling coatings. Understanding and control of factors influencing electrode stability aim to facilitate next-generation implant designs.Read moreRead less