The Material Science of Biomimetic Soft Network Composites. Nature combines stiff and strong collagen fibres intertwined within a weak polymer matrix of proteoglycans into soft tissues with outstanding mechanical durability and biological properties. We converge a biomimetic design strategy inspired in the architecture of natural soft tissues and a novel additive manufacturing technology termed melt electrowriting (MEW) to manufacture advanced biomimetic soft network composites (BSNC). The SNCs ....The Material Science of Biomimetic Soft Network Composites. Nature combines stiff and strong collagen fibres intertwined within a weak polymer matrix of proteoglycans into soft tissues with outstanding mechanical durability and biological properties. We converge a biomimetic design strategy inspired in the architecture of natural soft tissues and a novel additive manufacturing technology termed melt electrowriting (MEW) to manufacture advanced biomimetic soft network composites (BSNC). The SNCs are composed of a weak polymer matrix and a MEW reinforcing fibrous phase printed at the nanometre scale, containing patterns mimicking the natural tissue architectures. Advanced computational tools are applied for the rational design of the SNC while reducing costs and times associated to experimental work.Read moreRead less
Design and Fabrication of an Engineered Bone Graft System (EBGS) by combining a composite scaffold and growth factor delivery system. The lifetime risk for long bone fractures in Caucasians over the age of 50 is 17% for women and 6% for men. The prevalence of age-related fractures - and with it higher mortality rates due to complications following bone fractures - is therefore bound to increase over the coming decades. There is clearly a great need for therapies that take age-related changes in ....Design and Fabrication of an Engineered Bone Graft System (EBGS) by combining a composite scaffold and growth factor delivery system. The lifetime risk for long bone fractures in Caucasians over the age of 50 is 17% for women and 6% for men. The prevalence of age-related fractures - and with it higher mortality rates due to complications following bone fractures - is therefore bound to increase over the coming decades. There is clearly a great need for therapies that take age-related changes into consideration, in particular the diminishing capacity of bone to heal with age. In an effort to address the therapeutic challenges of providing bone grafts, we aim to mesh two leading-edge technologies to design and fabricate an Engineered Bone Graft System (EBGS) system. Read moreRead less
Development and characterization of a technology platform to study the mechanisms of scaffold/Bone Morphogenic Proteins (BMP) augmented large segmental bone healing. This project will increase understanding of bone engineering and in doing so will lead to superior treatments for bone defects. Such a treatment would be valuable in addressing the ever-increasing problems of diminished productivity and reduced quality of life associated with bone disorders as the population ages. The multidisciplin ....Development and characterization of a technology platform to study the mechanisms of scaffold/Bone Morphogenic Proteins (BMP) augmented large segmental bone healing. This project will increase understanding of bone engineering and in doing so will lead to superior treatments for bone defects. Such a treatment would be valuable in addressing the ever-increasing problems of diminished productivity and reduced quality of life associated with bone disorders as the population ages. The multidisciplinary and international team will be valuable in establishing Australia's prominence in this field and training the next generation of young scientists and engineers. The technologies developed will be of great interest to a large number of research groups and companies worldwide and will assist with fostering international collaboration and placing Australia at the forefront of this emerging field.Read moreRead less
Frontiers in bone and joint regeneration. Key outcomes of this project will deliver innovative strategies for scaffold-based bone and cartilage engineering whilst contributing to the education of a new generation of bioengineers, biomaterial scientists and tissue engineers with a strong international profile.
Discovery Early Career Researcher Award - Grant ID: DE240100128
Funder
Australian Research Council
Funding Amount
$450,000.00
Summary
Engineering microenvironments to regulate osteocyte 3D networks in vitro. Most knowledge of bone is based on only a fraction of cells found in bone because the majority of cells in our bones (called osteocyte cell networks) cannot easily be grown or studied outside the body. This results in the inability to understand how the bone organ functions. Using bioinspired engineering, this project will use advanced biomaterials to biofabricate, for the first time, osteocyte cell networks in vitro. By u ....Engineering microenvironments to regulate osteocyte 3D networks in vitro. Most knowledge of bone is based on only a fraction of cells found in bone because the majority of cells in our bones (called osteocyte cell networks) cannot easily be grown or studied outside the body. This results in the inability to understand how the bone organ functions. Using bioinspired engineering, this project will use advanced biomaterials to biofabricate, for the first time, osteocyte cell networks in vitro. By unravelling how they are formed and controlled by manipulating their microenvironment, we will discover how different types of bones are formed. The benefits will be a valuable tool for the bone research community, allowing unresolved questions to be addressed in the future, such as how bone forms, repairs, and remodels.Read moreRead less
Graded Biomaterial for Articular Cartilage Replacement. Osteoarthritis is a major health and economical burden on the Australian community which can be addressed in part by providing a viable option for effective clinical treatment. 34% of people over the age of 50 suffer from osteoarthritis, predominantly the knee. The development of a biomaterial to enable repair of articular cartilage through minor surgical procedures will release resources at point of care. Current biomaterial options are st ....Graded Biomaterial for Articular Cartilage Replacement. Osteoarthritis is a major health and economical burden on the Australian community which can be addressed in part by providing a viable option for effective clinical treatment. 34% of people over the age of 50 suffer from osteoarthritis, predominantly the knee. The development of a biomaterial to enable repair of articular cartilage through minor surgical procedures will release resources at point of care. Current biomaterial options are still in infancy and an Australian based product would benefit the Australian economy as well as Australia's international standing within the biomaterials community.Read moreRead less
Bilayered and growth factor-loaded composite scaffolds for the guided bi-differentiation of bone marrow stem cells. The project will regenerate bone-cartilage (osteochondral) tissues using scaffolds, growth factors, and stem cells in order to repair osteochondral defects. The project will improve the quality of life for ~1.4 million Australians suffering from joint pain and disability due to damage or disease of cartilage and subchondral bone. The project will promote Australia research strength ....Bilayered and growth factor-loaded composite scaffolds for the guided bi-differentiation of bone marrow stem cells. The project will regenerate bone-cartilage (osteochondral) tissues using scaffolds, growth factors, and stem cells in order to repair osteochondral defects. The project will improve the quality of life for ~1.4 million Australians suffering from joint pain and disability due to damage or disease of cartilage and subchondral bone. The project will promote Australia research strength in biomaterials, tissue engineering, and drug delivery. The project will also create research opportunities for PhD students, who will be equipped with interdisciplinary skills.Read moreRead less
Meso- and Macro-porous Bioactive Glasses for Bone-repairing. This project aims to use self-assembly and pore engineering at different length scales to fabricate novel bioactive glasses of highly ordered mesoporous structure. By precisely controlling the composition, size and volume of both mesopores and macropores, bioactive glasses with improved bone forming activities will be obtained. The successful synthesis of such bioactive glasses is expected to lead to the fundamental understanding of st ....Meso- and Macro-porous Bioactive Glasses for Bone-repairing. This project aims to use self-assembly and pore engineering at different length scales to fabricate novel bioactive glasses of highly ordered mesoporous structure. By precisely controlling the composition, size and volume of both mesopores and macropores, bioactive glasses with improved bone forming activities will be obtained. The successful synthesis of such bioactive glasses is expected to lead to the fundamental understanding of structure-bioactivity relationship, and new materials effective for tissue engineering. This will also open up new opportunities for other applications such as drug delivery, implanting.Read moreRead less
Convergence of biomaterials and immunology: a technology platform for delayed burst release of vaccines. A large challenge in vaccination, particularly in wildlife such as for the growing problem of Chlamydia in koalas, is to provide the necessary booster shots. This project will develop implants that will be inserted under the skin at the time of the first shot, and will spontaneously burst later to release the booster shot to provide protection.
Encoding Interactions and Printability into Hairy Colloidal Biomaterials. Printing mixtures of live cells and biomaterials (or 'BioInks') to make bespoke engineered tissues has the potential to enable personalised platforms for therapeutic discovery and organ replacement. Using a novel high throughput approach to materials synthesis, BioInk design and process optimisation, this project aims to discover new biomaterials and printing nozzles to help realise this potential. It will produce new insi ....Encoding Interactions and Printability into Hairy Colloidal Biomaterials. Printing mixtures of live cells and biomaterials (or 'BioInks') to make bespoke engineered tissues has the potential to enable personalised platforms for therapeutic discovery and organ replacement. Using a novel high throughput approach to materials synthesis, BioInk design and process optimisation, this project aims to discover new biomaterials and printing nozzles to help realise this potential. It will produce new insights in colloid science, cell-laden biomaterials design, and BioInk processing. Structure-property-function guides for colloid-based BioInks and quality-assured bioprinting as outcomes represent significant benefits for researchers and industries alike engaged in biofabrication, cell therapy and biotherapeutics.Read moreRead less