Assessing Bone Quality and Health: Experimental imaging, structural characterisation, and mechanical modelling of bone in 3D. Age-related bone fractures due to osteoporosis impose a significant social and economic problem on our increasingly aging population. The assessment of bone quality is important in the diagnosis of age related bone fragility and for studying the efficacy of therapeutic intervens. In this proposal a unique interdisciplinary group with expertise in bone and mineral research ....Assessing Bone Quality and Health: Experimental imaging, structural characterisation, and mechanical modelling of bone in 3D. Age-related bone fractures due to osteoporosis impose a significant social and economic problem on our increasingly aging population. The assessment of bone quality is important in the diagnosis of age related bone fragility and for studying the efficacy of therapeutic intervens. In this proposal a unique interdisciplinary group with expertise in bone and mineral research, experimental 3D imaging and the characterisation and modelling of complex materials will tackle the problem of assessing bone quality and health. The proposed research will greatly improve our assessment of the mechanical competence of bone.Read moreRead less
Development of a Novel Process for the Formation of Polymer Vesicles. The project would provide an increased understanding of polymer structures, polymer-drug interactions and dense gas processing of polymers. The novel process developed would be beneficial on a manufacturing level since it dramatically reduces processing time and minimises energy requirements. The research to be conducted is leading-edge technology that will attract business from international polymer, drug and biotechnology co ....Development of a Novel Process for the Formation of Polymer Vesicles. The project would provide an increased understanding of polymer structures, polymer-drug interactions and dense gas processing of polymers. The novel process developed would be beneficial on a manufacturing level since it dramatically reduces processing time and minimises energy requirements. The research to be conducted is leading-edge technology that will attract business from international polymer, drug and biotechnology companies. The development of world-class research provides Australia with recognition as a world leader in the field and strengthens and broadens the knowledge base of Australian scientists and engineers.Read moreRead less
Composite biomaterials for modulation of dermal fibroblast function. The successful outcome of this research will revolutionize the way scars are treated for the large number of people who suffer burns and even minor trauma that leads to disfigurement. By using advanced chemical synthesis, biochemical analysis, cell biology and polymer materials science, an intelligent gel sheet will be devised that is able to control the formation of scar tissue and also reduce the effect of existing scars. Thi ....Composite biomaterials for modulation of dermal fibroblast function. The successful outcome of this research will revolutionize the way scars are treated for the large number of people who suffer burns and even minor trauma that leads to disfigurement. By using advanced chemical synthesis, biochemical analysis, cell biology and polymer materials science, an intelligent gel sheet will be devised that is able to control the formation of scar tissue and also reduce the effect of existing scars. This will produce improved quality of life for sufferers of severe scarring and have major economic benefits in reduced health costs. Read moreRead less
Development and Evaluation of Well-Defined Polymer-RNA Conjugates as Improved Therapeutics. Gene-based drugs offer an enormous potential to treat a wide range of diseases including, but not limited to, AIDS, hepatitis, and cancer. However, effective delivery of these drugs in body is needed to convert their therapeutic potential to clinically applicable treatments. Our multidisciplinary team will aim to develop novel, polymer-gene hybrid materials for efficient delivery of gene based therapeuti ....Development and Evaluation of Well-Defined Polymer-RNA Conjugates as Improved Therapeutics. Gene-based drugs offer an enormous potential to treat a wide range of diseases including, but not limited to, AIDS, hepatitis, and cancer. However, effective delivery of these drugs in body is needed to convert their therapeutic potential to clinically applicable treatments. Our multidisciplinary team will aim to develop novel, polymer-gene hybrid materials for efficient delivery of gene based therapeutics. Development of such advanced drug delivery systems will significantly enhance Australia`s power in biotechnology. Development and/or formation of new materials and strategies to improve the health quality of Australians, is an important anticipated outcome of this innovative project. Read moreRead less
Nanoporous siloxane membranes for ultrasound mediated ophthalmic drug delivery. This project will develop tailored polymers for use in a novel non-invasive ocular drug delivery device which treats vision threatening conditions such as age-related macular degeneration (AMD). The outcomes of this project will enable an entirely new ocular drug delivery technology, thereby delivering significant benefit to ophthalmic healthcare.
Calcification of acrylic hydrogels in abiotic media: mechanism and control. Poly(2-hydroxyethyl methacrylate (PHEMA) and other acrylic hydrogels are extensively used as biomaterials, yet conclusive evidence exists that they have a propensity to calcify following implantation. This process has undesirable consequences on the functionality of various prostheses. Based on preliminary observations that PHEMA can promote the deposition of calcium minerals from media devoid of biological factors, whic ....Calcification of acrylic hydrogels in abiotic media: mechanism and control. Poly(2-hydroxyethyl methacrylate (PHEMA) and other acrylic hydrogels are extensively used as biomaterials, yet conclusive evidence exists that they have a propensity to calcify following implantation. This process has undesirable consequences on the functionality of various prostheses. Based on preliminary observations that PHEMA can promote the deposition of calcium minerals from media devoid of biological factors, which appears thus to be an inherent property of the polymer, the project aims at formulating new hypotheses to explain this phenomenon, and to confirm them experimentally. The "chelation" hypothesis will be validated by modifying the structure of polymers, and the "spontaneous precipitation" hypothesis by assessing the effect of solutes on the equilibrium water content of polymers. NMR and FTIR spectrometric techniques will be used to gain further insight into the mechanism of calcification. Methods to prevent the calcification will potentially result from these experiments, however, anticalcification agents will also be incorporated into hydrogels and their effect evaluated in calcification assays.Read moreRead less
Synthesis of stimuli-responsive star polymers for controlled drug delivery. The project aims to prepare novel star polymers suitable for drug delivery via controlled radical polymerization techniques. Such star polymers can be employed to release drugs within the human body in a controlled manner over time and are thus able to target specific sites, i.e. a tumor. The release characterisitics are be influenced by the structure and the size of the star polymer, which can easily be altered via cont ....Synthesis of stimuli-responsive star polymers for controlled drug delivery. The project aims to prepare novel star polymers suitable for drug delivery via controlled radical polymerization techniques. Such star polymers can be employed to release drugs within the human body in a controlled manner over time and are thus able to target specific sites, i.e. a tumor. The release characterisitics are be influenced by the structure and the size of the star polymer, which can easily be altered via controlled radical polymerization techniques. These novel stars are expected to improve the release kinetics of the drug comparing to similar structured micelles due to their higher stability upon injection.Read moreRead less
Feasibility Studies of Using AC Electrospraying for Biomaterials Synthesis. The proposed interdisciplinary research is anticipated to benefit workers in academia and industry as well as clinicians and patients. Given the demand for point-of-care drug delivery, micro/nano-encapsulation and biomaterials synthesis, the research will be beneficial to the pharmaceutical industry and spin-off/start-up microfluidic businesses interested in commercially developing these devices. It is intended that the ....Feasibility Studies of Using AC Electrospraying for Biomaterials Synthesis. The proposed interdisciplinary research is anticipated to benefit workers in academia and industry as well as clinicians and patients. Given the demand for point-of-care drug delivery, micro/nano-encapsulation and biomaterials synthesis, the research will be beneficial to the pharmaceutical industry and spin-off/start-up microfluidic businesses interested in commercially developing these devices. It is intended that the work will improve quality of life by advancing biomaterials technology and by making medical treatment more readily accessable, portable and more efficient. For patients, the proposed drug delivery device can help prevent sudden initial bursts of dose during administration, which could potentially have fatal consequences.Read moreRead less
Single molecule actuators. The study of actuation processes in single molecules will lead to the development of improved advanced materials for Australian industry and, ultimately, to the more futuristic and exciting nanotechnologies. The research will improve our understanding of how polymer artificial muscles function, so that these materials can be further developed to meet the demand from industry. Applications include biomedical devices, robotic applicators and various machine parts. In ....Single molecule actuators. The study of actuation processes in single molecules will lead to the development of improved advanced materials for Australian industry and, ultimately, to the more futuristic and exciting nanotechnologies. The research will improve our understanding of how polymer artificial muscles function, so that these materials can be further developed to meet the demand from industry. Applications include biomedical devices, robotic applicators and various machine parts. In addition, the research will also contribute to one of the greatest promises of nanotechnology: the development of molecular machines. We will demonstrate the mechanical forces and movements possible from single molecules so that the design of useful nano-machines can begin.Read moreRead less
Development and characterisation of novel hydrogel systems for drug delivery. The aims of this project are to develop and characterise hydrogel formulations for delivery of active agents, such as protein drugs, and to examine the biological responses to drug loaded hydrogels. In many medical and industrial fields, it is advantageous to control the release of active agents. Controlled release can decrease the dose of active that must be administered, sustain a more constant level of the agent ....Development and characterisation of novel hydrogel systems for drug delivery. The aims of this project are to develop and characterise hydrogel formulations for delivery of active agents, such as protein drugs, and to examine the biological responses to drug loaded hydrogels. In many medical and industrial fields, it is advantageous to control the release of active agents. Controlled release can decrease the dose of active that must be administered, sustain a more constant level of the agent in the environment and can localise the agent at the site where it is needed. This project will advance the theoretical knowledge of polymer degradation combined with protein release, will develop controlled release hydrogel technology that can be applied to medical devices and will train a postgraduate student in biomaterials and drug delivery.Read moreRead less