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
Synthesis and Functionalisation of Advanced Polymer Films and Particles. Scientific and technological advances at the frontiers of nano- and biotechnology are poised to revolutionise the scope of treatment and healthcare options. This project will involve the synthesis of engineered polymer building blocks with the capability for multifunctional and intelligent response. These smart polymers will then be assembled into responsive nanostructured materials for drug delivery and biosensing applica ....Synthesis and Functionalisation of Advanced Polymer Films and Particles. Scientific and technological advances at the frontiers of nano- and biotechnology are poised to revolutionise the scope of treatment and healthcare options. This project will involve the synthesis of engineered polymer building blocks with the capability for multifunctional and intelligent response. These smart polymers will then be assembled into responsive nanostructured materials for drug delivery and biosensing applications. These materials are expected to have health benefits for Australian citizens and will contribute to a world-leading nanobiotechnology industry. The project will also provide development opportunities for young scientists and will also foster multidisciplinary collaborations within both Australia and abroad.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
Novel Drug Delivery Systems. The polymer based structures targeted for production in this project will bring unique capabilities to the field of drug delivery. A multi-drug delivery platform is expected to bring significant improvements in administering therapeutic drugs for a wide range of illnesses and applications. This will have profound effects on the quality of life for those suffering from epilepsy or requiring stent implants. Here we will demonstrate the capabilities of these novel polym ....Novel Drug Delivery Systems. The polymer based structures targeted for production in this project will bring unique capabilities to the field of drug delivery. A multi-drug delivery platform is expected to bring significant improvements in administering therapeutic drugs for a wide range of illnesses and applications. This will have profound effects on the quality of life for those suffering from epilepsy or requiring stent implants. Here we will demonstrate the capabilities of these novel polymer structures both in-vitro and in-vivo.Read moreRead less
Biodegradable Porous HEMA-Based Polymers: Innovative Strategies for the Design and Tuneable Single-Step Production of a Novel Class of Scaffolds for Tissue Engineering. This project will lead to the development of new biocompatible, biodegradable, porous materials ideally suited to many applications in tissue engineering. These new biomaterials will be relatively inexpensive to manufacture, via simple processes using non-toxic reagents. The key properties of the biomaterials will be controllable ....Biodegradable Porous HEMA-Based Polymers: Innovative Strategies for the Design and Tuneable Single-Step Production of a Novel Class of Scaffolds for Tissue Engineering. This project will lead to the development of new biocompatible, biodegradable, porous materials ideally suited to many applications in tissue engineering. These new biomaterials will be relatively inexpensive to manufacture, via simple processes using non-toxic reagents. The key properties of the biomaterials will be controllable by appropriate choice of starting materials. The availability of these new biomaterials will facilitate future developments in tissue engineering, which will ultimately lead to improved medical outcomes in areas as diverse as joint and bone repair and organ regeneration. Local manufacture of these biomaterials would also contribute to the development of the Australian biotechnology industry.Read moreRead less
Generation of peptidomimetic surfaces for biomaterials applications. Biomedical implants are increasingly being used for the treatment of a variety of ailments. This project will significantly contribute to the development of these bioengineered constructs, by introducing an innovative method for tailoring the nature of the surface of these materials with structures that mimic the response of biological surfaces. This technology has the potential to promote favourable interactions of cells with ....Generation of peptidomimetic surfaces for biomaterials applications. Biomedical implants are increasingly being used for the treatment of a variety of ailments. This project will significantly contribute to the development of these bioengineered constructs, by introducing an innovative method for tailoring the nature of the surface of these materials with structures that mimic the response of biological surfaces. This technology has the potential to promote favourable interactions of cells with biomedical implants, and an initial targeted application will be to use these bioengineered constructs in the treatment of preventable blindness and severe visual impairment, afflictions which affect over 180 million individuals worldwide.Read moreRead less
Multivalent drug delivery carrier for the targeted delivery of platinum anticancer agents to hepatocytes. Hepatocellular carcinoma (HCC) is often treated with chemotherapy using cytotoxic drugs. This systemic treatment results in the distribution of the drug throughout the body. Employing a polymer particle as a drug carrier for these drugs ensures a temporal control of the release and therefore supply of the drug within the body. By attaching carbohydrate moieties onto the surface of the polyme ....Multivalent drug delivery carrier for the targeted delivery of platinum anticancer agents to hepatocytes. Hepatocellular carcinoma (HCC) is often treated with chemotherapy using cytotoxic drugs. This systemic treatment results in the distribution of the drug throughout the body. Employing a polymer particle as a drug carrier for these drugs ensures a temporal control of the release and therefore supply of the drug within the body. By attaching carbohydrate moieties onto the surface of the polymer particle the drug carrier can specifically be recognized by cell receptors, thus allowing a targeted delivery of the drug to the desired area in the body. A range of carbohydrate-based drug carriers will be synthesized and tested towards their interaction with hepatocytes to allow optimisation of this drug carrier system.
Read moreRead less
Functionalised nanostructured polythiophenes: novel platforms for bionics. The nanostructured organic polymer materials targeted for production in this project will bring unique capabilities to the field of muscle regeneration. A multi-modal stimulation platform is expected to bring significant improvements in muscle cell growth. This will have profound effects on the quality of life for those suffering from neuromuscular disorders or other traumas that require muscle regeneration. This project ....Functionalised nanostructured polythiophenes: novel platforms for bionics. The nanostructured organic polymer materials targeted for production in this project will bring unique capabilities to the field of muscle regeneration. A multi-modal stimulation platform is expected to bring significant improvements in muscle cell growth. This will have profound effects on the quality of life for those suffering from neuromuscular disorders or other traumas that require muscle regeneration. This project will demonstrate the capabilities of these nanostructures in-vitro.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