Future neural electrodes: probing the electrical activity of nerves using 3D graphene networks. This research aims to develop a totally new type of neural electrode that will for the first time, allow reliable and long-term stimulation and recording. The approach incorporates graphene based biomaterials with tunable electrical and biological properties within supportive three-dimensional cellular microenvironments, greatly enhancing the electrical interactions between cells and the electrode. Th ....Future neural electrodes: probing the electrical activity of nerves using 3D graphene networks. This research aims to develop a totally new type of neural electrode that will for the first time, allow reliable and long-term stimulation and recording. The approach incorporates graphene based biomaterials with tunable electrical and biological properties within supportive three-dimensional cellular microenvironments, greatly enhancing the electrical interactions between cells and the electrode. The electrical properties of nerve cells will be probed using our three-dimensional graphene network, providing insight into the the brain-machine interface. This project is important as it directly addresses the inherent limitations of current electrode designs.Read moreRead less
Real-time neuronal network imaging using diamond optrode arrays. The project aims to develop new imaging technology for real time recording of electrical activity from cell and neuronal networks with unprecedented resolution and scale. The technology innovation stems from an optical defect in diamond which can be engineered to sensitively detect local changes in electric field. The all-optical diamond optrode array devices will be applied to biological model systems including cardiomyocytes, mam ....Real-time neuronal network imaging using diamond optrode arrays. The project aims to develop new imaging technology for real time recording of electrical activity from cell and neuronal networks with unprecedented resolution and scale. The technology innovation stems from an optical defect in diamond which can be engineered to sensitively detect local changes in electric field. The all-optical diamond optrode array devices will be applied to biological model systems including cardiomyocytes, mammalian cells, and neurons; and will be benchmarked against current state-of-the-art technologies. The knowledge gained from the high density recordings will aid predictive models of disease and will lead to an improved understanding of the brain’s micro circuity and functional connectome.Read moreRead less
Ultra-low fouling active surfaces. This project aims to develop chemistries and fabrication approaches through innovative materials evaluation to develop ultra-low fouling active electrode surfaces. Development of ultra-low fouling surfaces will have significant impact in a range of applications where system or device failure is attributed to fouling. The growing field of bionics, where implantable electronic devices interface directly with the nervous system, is one such device. The expected ou ....Ultra-low fouling active surfaces. This project aims to develop chemistries and fabrication approaches through innovative materials evaluation to develop ultra-low fouling active electrode surfaces. Development of ultra-low fouling surfaces will have significant impact in a range of applications where system or device failure is attributed to fouling. The growing field of bionics, where implantable electronic devices interface directly with the nervous system, is one such device. The expected outcomes will be an understanding of the material requirements that lead to the elimination of protein and cell accumulation at surfaces that degrades the performance and lifetime of these implants. The findings will benefit any application where fouling is a problem.Read moreRead less
Neural Activity Shaping for Retinal and Cochlear Implants. This project aims to develop methods to control and optimise the spatial patterns of neural activity evoked by neural prostheses in order to improve the resolution of neuroprostheses. A major problem for neural prostheses is that the electrical current used to stimulate neurons causes a diffuse spread of activity in the neural tissue, which limits the resolution of the device. For patients this translates into limitations in sound qualit ....Neural Activity Shaping for Retinal and Cochlear Implants. This project aims to develop methods to control and optimise the spatial patterns of neural activity evoked by neural prostheses in order to improve the resolution of neuroprostheses. A major problem for neural prostheses is that the electrical current used to stimulate neurons causes a diffuse spread of activity in the neural tissue, which limits the resolution of the device. For patients this translates into limitations in sound quality, in the case of cochlea implants, or visual acuity, for retinal implants. The outcome of the project will be algorithms that optimally choose the currents on each electrode so as to shape neural activity at the finer resolution of electrode spacing rather than the coarser resolution of current spread.Read moreRead less
Rapid point-of-care detection of genomic variations for personalised medicine. Selecting treatment based on a person’s genetic profile can improve drug safety and efficacy, but the application is hampered by the inconvenience, slow result turnaround and high cost of current lab-based tests. Full implementation of personalised medicine in clinical practice requires a point-of-care testing system. This project aims to overcome the challenges involved in developing such a system by validating novel ....Rapid point-of-care detection of genomic variations for personalised medicine. Selecting treatment based on a person’s genetic profile can improve drug safety and efficacy, but the application is hampered by the inconvenience, slow result turnaround and high cost of current lab-based tests. Full implementation of personalised medicine in clinical practice requires a point-of-care testing system. This project aims to overcome the challenges involved in developing such a system by validating novel rapid genotyping methods and developing ultrasensitive real-time DNA detection that will be integrated on a single chip platform to facilitate a small, low cost and reliable test device. The technology will be readily adaptable to areas where prompt access to genomic information is valuable, such as disease diagnosis and risk prediction.Read moreRead less
Central Representation of Electroacoustic Stimuli. Cochlear implantation, initially only provided to profoundly deaf individuals, is now routine in people with substantial residual hearing. Although stimulation via a cochlear implant and hearing aid in the same ear has been shown to improve speech understanding, particularly in noise, and to increase the aesthetic quality of sound, almost nothing is known about the physiological mechanisms underlying these benefits. The broad aim of our project ....Central Representation of Electroacoustic Stimuli. Cochlear implantation, initially only provided to profoundly deaf individuals, is now routine in people with substantial residual hearing. Although stimulation via a cochlear implant and hearing aid in the same ear has been shown to improve speech understanding, particularly in noise, and to increase the aesthetic quality of sound, almost nothing is known about the physiological mechanisms underlying these benefits. The broad aim of our project is to address this deficiency by measuring the patterns of neural activity evoked by speech sounds across the tonotopic axis in the inferior colliculus and auditory cortex and assess the extent to which the pattern of neural activity allows discrimination between the different speech sounds.Read moreRead less
Hybrid imaging/modelling: A new paradigm for understanding the lung. Our lungs are essential to sustain our lives, yet the details of lung biomechanics are barely understood because the available tools, imaging, modelling and simulation have significant limitations. Imaging is largely limited to providing structural information; simulation is severely restricted by a lack of validation; and inverse modelling is critically hampered by a lack of spatially resolved inputs. The project’s multidiscip ....Hybrid imaging/modelling: A new paradigm for understanding the lung. Our lungs are essential to sustain our lives, yet the details of lung biomechanics are barely understood because the available tools, imaging, modelling and simulation have significant limitations. Imaging is largely limited to providing structural information; simulation is severely restricted by a lack of validation; and inverse modelling is critically hampered by a lack of spatially resolved inputs. The project’s multidisciplinary team is uniquely positioned to explore these problems through the hybridisation of world-leading functional lung imaging technology with state-of-the-art modelling. This project aims to provide, perhaps for the first time, the capacity to see details with the resolution of imaging, richness of modelling and reliability of the finest measurements.Read moreRead less
Diamond glass: An all-carbon technology for neural networks and biosensing. This project aims to use plasma deposition to synthesise diamond glass with the highest purity and the most diamond-like character so that it meets the strict requirements for emerging device applications. The extreme properties of diamond glass arise from the diamond-like bonding of the majority of its atoms. This amorphous, wide bandgap semiconductor is also the hardest known glass. The maximum diamond-like content pos ....Diamond glass: An all-carbon technology for neural networks and biosensing. This project aims to use plasma deposition to synthesise diamond glass with the highest purity and the most diamond-like character so that it meets the strict requirements for emerging device applications. The extreme properties of diamond glass arise from the diamond-like bonding of the majority of its atoms. This amorphous, wide bandgap semiconductor is also the hardest known glass. The maximum diamond-like content possible in diamond glass coatings is unknown, so determining its ultimate performance is difficult. Expected applications include medical diagnostics, non-volatile memories and programmable chips.Read moreRead less
New entropy measures of short term signals for smart wearable devices. This project aims to improve reliability and accuracy of wearable devices by developing a new set of computationally efficient algorithms. Wearable devices can be very effective in remote and continuous monitoring to detect short or bursty anomalous events. Present devices are unable to detect such events effectively due to limited capability in processing short length signal. This project will provide computationally efficie ....New entropy measures of short term signals for smart wearable devices. This project aims to improve reliability and accuracy of wearable devices by developing a new set of computationally efficient algorithms. Wearable devices can be very effective in remote and continuous monitoring to detect short or bursty anomalous events. Present devices are unable to detect such events effectively due to limited capability in processing short length signal. This project will provide computationally efficient algorithms for signal quality analysis and enhanced feature extraction methods in resource constrained wearable devices. This will improve the reliability and performance of wearable devices for adoption in intelligent decision-making systems.Read moreRead less
Modelling of neural plasticity for enhanced performance of brain-machine interfaces. Plasticity of the brain is one of the great scientific challenges of neuroscience. The aim of this project is to model the synaptic changes that occur with reward-modulated spike-timing-dependent plasticity and apply the model to developing plasticity targeted brain-machine interfaces. The significance of this approach is that such plasticity targeted techniques provide the prospect of taking advantage of the un ....Modelling of neural plasticity for enhanced performance of brain-machine interfaces. Plasticity of the brain is one of the great scientific challenges of neuroscience. The aim of this project is to model the synaptic changes that occur with reward-modulated spike-timing-dependent plasticity and apply the model to developing plasticity targeted brain-machine interfaces. The significance of this approach is that such plasticity targeted techniques provide the prospect of taking advantage of the underlying neural plasticity to optimise the form of the neural recording and electrical stimulation. The outcomes will be to greatly improve the performance of brain-machine interface in terms of measures such as the number and sensitivity of channels, as well as robustness and reliability.Read moreRead less