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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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
Attachment of Growth Factors to Pure, Plasma Modified and Coated Titanium Substrates. Titanium and its alloys are routinely used as medical and dental implants. Despite coating with hydroxyapatite, a material well known to improve implant fixation, many such implants fail because of lack of strong integration with bone. This proposal aims at achieving long-term stability of titanium implants through their surface modification and subsequent attachment of growth factors. The use of latter has alr ....Attachment of Growth Factors to Pure, Plasma Modified and Coated Titanium Substrates. Titanium and its alloys are routinely used as medical and dental implants. Despite coating with hydroxyapatite, a material well known to improve implant fixation, many such implants fail because of lack of strong integration with bone. This proposal aims at achieving long-term stability of titanium implants through their surface modification and subsequent attachment of growth factors. The use of latter has already been shown to help bone-implant integration. Successful project implementation will provide titanium implant surfaces that will help achieve speedier and improved implant fixation with long-term stability. Knowledge, expertise and techniques developed will help the industry partner expanding its research base and business and generating wealth in Australia. Training of world-class research students in the emerging field of biotechnology will be another major outcome.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
Using nanostructured biomaterials and stem cells to repair spinal cord injuries. There is currently no effective cure for spinal cord injuries and the consequences to the patient are devastating. Spinal cord injuries affects limb, bowel, bladder and sexual function, and many people with these injuries strugle to maintain their independence. Because people can live for many years after spinal cord damage, the financial and social costs are immense, as many are dependent on the help of others for ....Using nanostructured biomaterials and stem cells to repair spinal cord injuries. There is currently no effective cure for spinal cord injuries and the consequences to the patient are devastating. Spinal cord injuries affects limb, bowel, bladder and sexual function, and many people with these injuries strugle to maintain their independence. Because people can live for many years after spinal cord damage, the financial and social costs are immense, as many are dependent on the help of others for their survival. This proposal tackles this urgent problem by applying advanced nanostructured materials with stem cells, to assist the body in the repair of the spinal cord following injury. Read moreRead less
Nerve regeneration using light responsive hydrogels and stem cells. Diseases of the brain and mind are already the single largest burden of disease in the western world, being greater than cardiac or malignant disease. With Australia's ageing demographic, diseases of the brain and mind will continue to outstrip all other medical causes of loss of productive working life and quality of life. This proposal will confront this serious issue using nanostructured intelligent materials, moving towards ....Nerve regeneration using light responsive hydrogels and stem cells. Diseases of the brain and mind are already the single largest burden of disease in the western world, being greater than cardiac or malignant disease. With Australia's ageing demographic, diseases of the brain and mind will continue to outstrip all other medical causes of loss of productive working life and quality of life. This proposal will confront this serious issue using nanostructured intelligent materials, moving towards the realization of effective stem cell therapies.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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