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Application of Silver Coatings to medical Devices for Antimicrobial Properties using Electroless Deposition. Silver compounds, eg. in topical creams, can be used to treat chronic infections. The results are mediocre, and there may be significant side effects. Metallic silver when coated on bandages or medical devices is gaining wider acceptance, but the dissolution rate muct be improved to minimise infection. In this project an electroless silver coating process will be developed, with bath ch ....Application of Silver Coatings to medical Devices for Antimicrobial Properties using Electroless Deposition. Silver compounds, eg. in topical creams, can be used to treat chronic infections. The results are mediocre, and there may be significant side effects. Metallic silver when coated on bandages or medical devices is gaining wider acceptance, but the dissolution rate muct be improved to minimise infection. In this project an electroless silver coating process will be developed, with bath chemistry and coating conditions optimised for an ideal dissolution rate. This project will lead to the development of improved medical devices that will have significant social and economic benefits for Australia.Read moreRead less
Development of a Light-Activated Bioadhesive for Low Temperature Tissue Repair. While sutures currently represent the gold standard for wound closure, their fundamental technology has changed little in thousands of years. Surgical sealants and energy based closure devices are expected to increasingly replace or complement sutures, improving tissue closure and wound healing. The innovative research in this proposal will develop the next generation of surgical bioadhesive technology and claim a s ....Development of a Light-Activated Bioadhesive for Low Temperature Tissue Repair. While sutures currently represent the gold standard for wound closure, their fundamental technology has changed little in thousands of years. Surgical sealants and energy based closure devices are expected to increasingly replace or complement sutures, improving tissue closure and wound healing. The innovative research in this proposal will develop the next generation of surgical bioadhesive technology and claim a stake in the estimated US$ 4 billion market. The project outcomes will enhance Australia's reputation in the biomedical field and will have world-wide social and health care benefits by ultimately allowing better functional healing through bioadhesives that can be effectively applied rapidly and consistently.Read moreRead less
Synthesis of Novel Biomaterials for Drug delivery. A new UV radiation polymerisation technique utilising charge-transfer complexes is adopted for synthesising novel hydrogels, a group of biomaterials for drug delivery. This work is significant as charge-transfer complexes, pertinent to the formation of hydrogels, form copolymers within the hydrogel matrices. This eliminates using costly, yet undesirable photo-initiators (PI), thus rendering the hydrogels as cleaner (PI-free) and more economical ....Synthesis of Novel Biomaterials for Drug delivery. A new UV radiation polymerisation technique utilising charge-transfer complexes is adopted for synthesising novel hydrogels, a group of biomaterials for drug delivery. This work is significant as charge-transfer complexes, pertinent to the formation of hydrogels, form copolymers within the hydrogel matrices. This eliminates using costly, yet undesirable photo-initiators (PI), thus rendering the hydrogels as cleaner (PI-free) and more economical in production; the products present themselves as ideal treatment methods in the controlled-release of drugs, specifically targeting localised pathological sites of interest. The research findings will be invaluable to medical practices, leading to the creation of new industries in Australia.
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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
Innovative green technology for bio-particle engineering. Approximately 40% of new pharmaceuticals are poorly soluble in bodily fluids. In many cases this leads to poor bioavailability, and consequent undesirable side effects as a result of high compensating dosages and generally poor patient compliance. These issues will be addressed by developing a green technology for the re-engineering of pharmaceuticals with the objective of increasing bioavilability. The research programme falls within th ....Innovative green technology for bio-particle engineering. Approximately 40% of new pharmaceuticals are poorly soluble in bodily fluids. In many cases this leads to poor bioavailability, and consequent undesirable side effects as a result of high compensating dosages and generally poor patient compliance. These issues will be addressed by developing a green technology for the re-engineering of pharmaceuticals with the objective of increasing bioavilability. The research programme falls within the Designated Research Priority of Frontier Technologies for Building and Transforming Australian Industries. Read moreRead less
Targeted growth factor delivery using natural polysaccharide materials for bone regeneration. This proposal addresses the core issue of nano-biomaterials capable of encouraging bone growth and providing better and more complete healing of bone fractures. Australia will benefit firstly through improved health outcomes by providing material-based solutions to address slow or non-healing fractures, which are increasingly prevalent in the aging population in Australia. This will have a further benef ....Targeted growth factor delivery using natural polysaccharide materials for bone regeneration. This proposal addresses the core issue of nano-biomaterials capable of encouraging bone growth and providing better and more complete healing of bone fractures. Australia will benefit firstly through improved health outcomes by providing material-based solutions to address slow or non-healing fractures, which are increasingly prevalent in the aging population in Australia. This will have a further benefit to the Australian economy improving the quality of life enabling people to work longer and reducing the need for further surgical intervention. This proposal will also have benefits to Australia through training future researchers in this field which will in turn provide economic growth through the development of Australian industries.Read moreRead less
Development of Acid Degradable Polymeric Nanoparticles for Intracellular and Tumour Site Selective Delivery of Drugs. There is an enormous need to develop effective anticancer drug delivery systems to reduce the social and economic impact of cancer. One of the most critical problems in tumour treatment is the lack of selective toxicity of anticancer drugs against tumour tissues. Our multidisciplinary team will aim to develop a novel polymer based system for tumour site-selective delivery of anti ....Development of Acid Degradable Polymeric Nanoparticles for Intracellular and Tumour Site Selective Delivery of Drugs. There is an enormous need to develop effective anticancer drug delivery systems to reduce the social and economic impact of cancer. One of the most critical problems in tumour treatment is the lack of selective toxicity of anticancer drugs against tumour tissues. Our multidisciplinary team will aim to develop a novel polymer based system for tumour site-selective delivery of anticancer drugs. Development of such advanced drug delivery systems will significantly enhance Australia`s power in biotechnology. Development and/or formation of strategies to improve the health quality of Australians, is an important anticipated outcome of this innovative project.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150101518
Funder
Australian Research Council
Funding Amount
$345,000.00
Summary
Cellular responses to nanoparticles from cells on micropatterned surfaces. The mechanisms underlying cell-nanoparticle interactions remain largely unknown. It has hampered the design and development of innovative nano devices to be used for drug delivery, biomarkers and diagnostics. This project aims to explore the influences of cell size, density, geometry, intercellular communication and substrate properties on cell-nanoparticle interactions. A micropatterning technology is applied to precisel ....Cellular responses to nanoparticles from cells on micropatterned surfaces. The mechanisms underlying cell-nanoparticle interactions remain largely unknown. It has hampered the design and development of innovative nano devices to be used for drug delivery, biomarkers and diagnostics. This project aims to explore the influences of cell size, density, geometry, intercellular communication and substrate properties on cell-nanoparticle interactions. A micropatterning technology is applied to precisely control cell behaviour and provide a novel in vitro cellular model for nanoparticle studies. This project aims to significantly improve the understanding of cell-nanoparticle interactions to provide new insight into nanoparticle design and improve the efficacy of nano devices.Read moreRead less
Oral Insulin Delivery facilitated by Enteric Coating using Dense Gas Technologies. Insulin dependant diabetes is a rapidly growing disease. The current method for insulin delivery to the patient is by injection, which is inconvenient. Oral delivery of insulin is a more acceptable method. It is proposed to develop a dense gas technique to coat insulin with a pH sensitive polymer to protect it from the acidic environment of the stomach. Insulin can then be released at the high pH of the intestin ....Oral Insulin Delivery facilitated by Enteric Coating using Dense Gas Technologies. Insulin dependant diabetes is a rapidly growing disease. The current method for insulin delivery to the patient is by injection, which is inconvenient. Oral delivery of insulin is a more acceptable method. It is proposed to develop a dense gas technique to coat insulin with a pH sensitive polymer to protect it from the acidic environment of the stomach. Insulin can then be released at the high pH of the intestine when the polymer is dissolved. Particle size control is feasible by dense gas processes by manipulating operating parameters. Advantages include low residual solvent and manufacture at ambient temperatures.Read moreRead less
Design and characterisation of a polysaccharide-based biomaterial for tissue adhesion. This proposal aims to design a new bio-adhesive material and study the mechanisms of action for tissue adhesion. Current suture technology is inadequate for anything but simple repairs and the alternative offered by surgical glues available today is at most augmentation of suturing. Combination of a strong adhesive biomaterial with factors for accelerating wound healing will generate a novel material technolo ....Design and characterisation of a polysaccharide-based biomaterial for tissue adhesion. This proposal aims to design a new bio-adhesive material and study the mechanisms of action for tissue adhesion. Current suture technology is inadequate for anything but simple repairs and the alternative offered by surgical glues available today is at most augmentation of suturing. Combination of a strong adhesive biomaterial with factors for accelerating wound healing will generate a novel material technology that, by uniting wound closure with sealing, addresses an unmet need in surgery.
The primary outcomes of these investigations will be:
1. advancement of knowledge in theories of tissue-biomaterial adhesion mechanisms
2. knowledge of effects of visible light from laser diodes on cells and isolated tissue
3. a biocompatible, visible light activated adhesive film for tissue repair based on chitosan polysaccharides
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