A Multi-Optrode Array for Closed-Loop Bionics. We will design, implement and characterise a disruptive multi-channel optrode array (MOA) to record and stimulate excitable living tissue. The MOA will be a combination of individual optical electrodes (optrodes) that either comprise a new class of liquid crystals, used to passively sense extracellular biopotentials, or microphotovoltaic cells that will be used for electrical stimulation of excitable tissue. By employing light for communication with ....A Multi-Optrode Array for Closed-Loop Bionics. We will design, implement and characterise a disruptive multi-channel optrode array (MOA) to record and stimulate excitable living tissue. The MOA will be a combination of individual optical electrodes (optrodes) that either comprise a new class of liquid crystals, used to passively sense extracellular biopotentials, or microphotovoltaic cells that will be used for electrical stimulation of excitable tissue. By employing light for communication with optrodes, this new approach alleviates many of the wiring, packaging and encapsulation issues associated with existing devices. Computational modelling and in vitro testing in cardiac tissue and retinal neurons will demonstrate the utility of the MOA to sense and control electrical activity.Read moreRead less
Design of an optrode for next generation brain-machine interfaces. The project plans to use a new class of liquid crystals – deformed helix ferroelectric (DHF) liquid crystal – to sense extracellular biopotentials. In response to an applied electrical field, it has been shown that DHF crystals can modulate a polarised light source with extraordinary sensitivity and linear response down to the microvolt range. Using this technology, the project plans to initially design and test a single optrode ....Design of an optrode for next generation brain-machine interfaces. The project plans to use a new class of liquid crystals – deformed helix ferroelectric (DHF) liquid crystal – to sense extracellular biopotentials. In response to an applied electrical field, it has been shown that DHF crystals can modulate a polarised light source with extraordinary sensitivity and linear response down to the microvolt range. Using this technology, the project plans to initially design and test a single optrode device on the bench, before in vitro testing and characterisation using two-photon microscopy. The final design would be a higher density sensor array using a fibre optic source and multiple optical couplers. This may support the development of new ways to implant sensing and diagnostic devices in the body.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE170100241
Funder
Australian Research Council
Funding Amount
$372,000.00
Summary
Seeing deeply inside the body with the world's smallest microscope. This project aims to develop the world's smallest in vivo microscope that can image the interior of living organisms at a subcellular resolution in a minimally invasive way. The project will shrink an entire microscope to the size of an optical fibre – as thin as a single strand of hair – and image deep regions of the central nervous system. This is expected to improve diagnostic tools and the knowledge of degenerative brain dis ....Seeing deeply inside the body with the world's smallest microscope. This project aims to develop the world's smallest in vivo microscope that can image the interior of living organisms at a subcellular resolution in a minimally invasive way. The project will shrink an entire microscope to the size of an optical fibre – as thin as a single strand of hair – and image deep regions of the central nervous system. This is expected to improve diagnostic tools and the knowledge of degenerative brain diseases, including Alzheimer's disease and amyotrophic lateral sclerosis. This project aims to completely transform the landscape of biomedical research and industry, with expected discoveries revolutionising the diagnosis and treatment of brain conditions.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE180100009
Funder
Australian Research Council
Funding Amount
$365,058.00
Summary
Spatial, spectral and temporal imaging through multimode optical fibre. This project aims to develop technologies for imaging through a multimode fibre that controls and measures each property of light; amplitude, phase, polarisation, wavelength and space as it propagates through an optical fibre. This will be pursued through the development of three prototype systems, where each system targets a particular property of light. The outcomes would ultimately enable multimode fibres to act as ultrac ....Spatial, spectral and temporal imaging through multimode optical fibre. This project aims to develop technologies for imaging through a multimode fibre that controls and measures each property of light; amplitude, phase, polarisation, wavelength and space as it propagates through an optical fibre. This will be pursued through the development of three prototype systems, where each system targets a particular property of light. The outcomes would ultimately enable multimode fibres to act as ultracompact, general-purpose optical conduits into the body through which a wide array of biomedical techniques can be performed in a minimally invasive fashion not currently possible. This project will provide significant benefit to the study of fundamental phenomena in optical fibres.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160100843
Funder
Australian Research Council
Funding Amount
$330,000.00
Summary
Regulating gene delivery with light. This project seeks to deliver the capacity to remotely deliver molecules into specific cells without the need for invasive or viral procedures. Individual genetic predisposition to disease forms a key part of personalised medicine that requires the accurate delivery of drugs or genes. This project aims to develop a new multimodality microscopy that can investigate and optimise light delivery of macromolecules into living cells at high specificity and across a ....Regulating gene delivery with light. This project seeks to deliver the capacity to remotely deliver molecules into specific cells without the need for invasive or viral procedures. Individual genetic predisposition to disease forms a key part of personalised medicine that requires the accurate delivery of drugs or genes. This project aims to develop a new multimodality microscopy that can investigate and optimise light delivery of macromolecules into living cells at high specificity and across a multitude of cells. The expected outcome of this project is a new form of in vivo molecular delivery system using light.Read moreRead less
Three dimensional (3D) optical coherence tomography in cancer. This project will establish for the first time how well 3D optical coherence tomography, a form of medical imaging, can image cancer. Based on this, a version built into a needle will be developed which will enable extension much deeper into tissues than previously possible to image cancer and to guide related surgical procedures.
Conformal Bionics - addressing the challenges in bringing miniaturised implants to the site of therapeutic delivery. Smaller, more sophisticated, lifetime-implantable bionic devices capable of being placed at the site of therapeutic delivery will facilitate new or improved opportunities for treatment of disease. Three critical areas of research aim to be explored in pursuit of this goal will be addressed within this study: introduction of new fabrication materials that enable devices to conform ....Conformal Bionics - addressing the challenges in bringing miniaturised implants to the site of therapeutic delivery. Smaller, more sophisticated, lifetime-implantable bionic devices capable of being placed at the site of therapeutic delivery will facilitate new or improved opportunities for treatment of disease. Three critical areas of research aim to be explored in pursuit of this goal will be addressed within this study: introduction of new fabrication materials that enable devices to conform to the anatomy of the targeted site of therapeutic delivery; improved means of addressing the data and energy transfer needs of devices implanted in confined spaces; and innovation of novel sensors for testing and monitoring of atmospheric conditions within the implant to anticipate and safely manage issues relating to a breach of hermetic encapsulation barriers.Read moreRead less
Quantitative multi-modal optical imaging of deep tissue. This project aims to create new tools to quantify the structural and functional properties of tissue. Combining multiple optical imaging technologies (multi-modal) into a single, miniaturised probe, these tools could enable physiologists and biomedical researchers to obtain new insight into disease. Encasing the highly miniaturised probe within a medical needle is aimed to allow insertion of the 'needle probe' deep into tissue, extending o ....Quantitative multi-modal optical imaging of deep tissue. This project aims to create new tools to quantify the structural and functional properties of tissue. Combining multiple optical imaging technologies (multi-modal) into a single, miniaturised probe, these tools could enable physiologists and biomedical researchers to obtain new insight into disease. Encasing the highly miniaturised probe within a medical needle is aimed to allow insertion of the 'needle probe' deep into tissue, extending optical imaging to areas not previously accessible. The project could develop novel quantification models to allow longitudinal assessment and comparison between subjects. Validating the tools with specific biomarkers, it could provide outcomes in breast and liver cancer, and a framework to explore other diseases.Read moreRead less
Laser powered miniature bionic devices. Laser powered miniature bionic devices. This project aims to develop a laser-based system to wirelessly power and control implantable medical micro-devices. Very-large-scale integration technology has miniaturised microelectronic medical implants, but energy systems have not shrunk; the wireless power/data interface is most of the implant’s volume. This project intends to develop an optical power/data interface to achieve high power density transfer to a m ....Laser powered miniature bionic devices. Laser powered miniature bionic devices. This project aims to develop a laser-based system to wirelessly power and control implantable medical micro-devices. Very-large-scale integration technology has miniaturised microelectronic medical implants, but energy systems have not shrunk; the wireless power/data interface is most of the implant’s volume. This project intends to develop an optical power/data interface to achieve high power density transfer to a miniaturised retinal implant housed entirely within a single self-contained transparent diamond capsule without any external lead wires. This safe and robust power/data delivery will exploit the outstanding transparency, biocompatibility and biostability of diamond encapsulation, thus enhancing the international competitiveness of the Australian medical device sector.Read moreRead less
Final frontier in computational modelling of movement. This project aims to create the computational models and methods needed to advance current understanding of musculoskeletal function during movement. Humans must maintain their capacity to move in order to maintain quality-of-life. Predictive modelling is potentially the most powerful approach for understanding musculoskeletal function during movement. Current computational methods are too slow and unreliable to deliver predictive simulation ....Final frontier in computational modelling of movement. This project aims to create the computational models and methods needed to advance current understanding of musculoskeletal function during movement. Humans must maintain their capacity to move in order to maintain quality-of-life. Predictive modelling is potentially the most powerful approach for understanding musculoskeletal function during movement. Current computational methods are too slow and unreliable to deliver predictive simulations of movement using realistic models of muscle and joint anatomy. This project expects to create the next generation of methods and algorithms needed to enable predictive modelling of movement. Predictive simulations will provide new insights into how muscles stabilise and control movements of the spine, pelvis and lower limbs during daily activities such as walking.Read moreRead less