Advanced technologies for laser refractive surgery. People who wear glasses can now undergo laser eye-surgery to correct their focussing problems. While many can ?throw away their glasses?, the results are optimised for one viewing situation so that when people move their eyes or refocus, visual clarity is not perfect. We need precise measurements of the eye's shape under dynamic conditions to understand exactly how optical distortions (aberrations) affect clarity of sight. This project is to b ....Advanced technologies for laser refractive surgery. People who wear glasses can now undergo laser eye-surgery to correct their focussing problems. While many can ?throw away their glasses?, the results are optimised for one viewing situation so that when people move their eyes or refocus, visual clarity is not perfect. We need precise measurements of the eye's shape under dynamic conditions to understand exactly how optical distortions (aberrations) affect clarity of sight. This project is to build a laser device that incorporates a deformable mirror to investigate the interplay between aberrations and visual clarity. This new knowledge is a vital next step to improve laser eye-surgery success.Read moreRead less
New high resolution radiation dose mapping of special type polymer-gel dosimeters using mini-MRI scanner of high (4.7 Tesla) magnetic field. Gel dosimeters main advantage is dose determination in 3-dimensions. Their main limitation is low spatial-resolution. We propose fabrication of special-type gels and for the first time use the 4.7 Tesla mini-scanner for dose mapping. Increased magnetic field combined with a small aperture for field dissipation will greatly improve spatial resolution down t ....New high resolution radiation dose mapping of special type polymer-gel dosimeters using mini-MRI scanner of high (4.7 Tesla) magnetic field. Gel dosimeters main advantage is dose determination in 3-dimensions. Their main limitation is low spatial-resolution. We propose fabrication of special-type gels and for the first time use the 4.7 Tesla mini-scanner for dose mapping. Increased magnetic field combined with a small aperture for field dissipation will greatly improve spatial resolution down to micrometers (micro-dosimetry). This new technique will render gel-dosimeters suitable for applications in radiotherapy, industrial and all other radiation fields. Moreover, we will employ new parameter for dose mapping, which is expected to be more sensitive to radiation than the currently used relaxation timesRead moreRead less
Optical Fibre Touch Sensor for Cochlear Implants. The touch sensor will be part of a cochlear implant, which is surgically implanted to provide a sense of hearing for people who are profoundly or severely deaf. Approximately 100,000 people worldwide have received cochlear implants so far. However, the delicate internal structures of the ear can easily be damaged when the implant is inserted. By helping surgeons to preserve the inner ear, this sensor will help to further improve the hearing abili ....Optical Fibre Touch Sensor for Cochlear Implants. The touch sensor will be part of a cochlear implant, which is surgically implanted to provide a sense of hearing for people who are profoundly or severely deaf. Approximately 100,000 people worldwide have received cochlear implants so far. However, the delicate internal structures of the ear can easily be damaged when the implant is inserted. By helping surgeons to preserve the inner ear, this sensor will help to further improve the hearing ability of future patients. The 'bionic ear' was invented in Australia and this project will help to ensure the continued success of Australia's world leading implant industry.Read moreRead less
A novel scintillating optical fibre array for cancer imaging and therapy. This project aims to realise a next-generation detector technology that delivers the first fully integrated solution to the X-ray imaging and dose measurement needs of cancer radiation therapy. It is planned that this will be achieved by optimising an experimental prototype device employing a scintillating optical fibre array to generate an optical signal that preserves a tissue-equivalent detector response. The acquired d ....A novel scintillating optical fibre array for cancer imaging and therapy. This project aims to realise a next-generation detector technology that delivers the first fully integrated solution to the X-ray imaging and dose measurement needs of cancer radiation therapy. It is planned that this will be achieved by optimising an experimental prototype device employing a scintillating optical fibre array to generate an optical signal that preserves a tissue-equivalent detector response. The acquired digital image can thus be used to simultaneously verify geometric accuracy (correct patient positioning) and dosimetric accuracy (correct dose distribution). This is not currently possible with existing X-ray detector technology and offers an improvement in treatment accuracy.Read moreRead less
Characterisation and improvement of radiation beams used for radiotherapy of small lesions. This project aims to characterise the radiation dose from a medical linear accelerator after the beam has been shaped by a mini-multileaf collimator. The characterisation will be achieved through a combination of computer simulations and experimental investigation of the beam using the technique of three-dimensional gel dosimetry. When the dosage characteristics are known, techniques will be developed to ....Characterisation and improvement of radiation beams used for radiotherapy of small lesions. This project aims to characterise the radiation dose from a medical linear accelerator after the beam has been shaped by a mini-multileaf collimator. The characterisation will be achieved through a combination of computer simulations and experimental investigation of the beam using the technique of three-dimensional gel dosimetry. When the dosage characteristics are known, techniques will be developed to improve radiotherapy treatments in patients with small lesions with sizes of up to a few centimetres. This will lead to an improved outcome for some cancer patients.Read moreRead less
Spectroscopy of complex and biological micro-objects for biosensing applications. The optically based test for specific DNA binding resulting from the conclusion of this project is of great potential benefit to all Australians as DNA is the building block of all living organisms. The technique developed and resulting biosensor will provide an invaluable tool for the determination and analysis of specific DNA reactions. The general technique developed for the genetic targeting of specific DNA rea ....Spectroscopy of complex and biological micro-objects for biosensing applications. The optically based test for specific DNA binding resulting from the conclusion of this project is of great potential benefit to all Australians as DNA is the building block of all living organisms. The technique developed and resulting biosensor will provide an invaluable tool for the determination and analysis of specific DNA reactions. The general technique developed for the genetic targeting of specific DNA reactions makes the detection of diseases and toxins like Chlamydia and anthrax, for example cheap, quick and accurate, keeping Australian's healthy, and strengthening national security.Read moreRead less
Putting an end to hospital-borne infection with micronebulisation of lung-safe disinfectants. Dangerous infections are unfortunately common in hospitals, established and retransmitted via surfaces and handheld items, representing a leading contributor to death worldwide, and potentially a far more serious problem to come as antimicrobial resistance worsens. The project aims to exploit a newly discovered and unique low power nebulisation technology to nebulise a strongly antiviral, antibacterial ....Putting an end to hospital-borne infection with micronebulisation of lung-safe disinfectants. Dangerous infections are unfortunately common in hospitals, established and retransmitted via surfaces and handheld items, representing a leading contributor to death worldwide, and potentially a far more serious problem to come as antimicrobial resistance worsens. The project aims to exploit a newly discovered and unique low power nebulisation technology to nebulise a strongly antiviral, antibacterial and antifungal agent, triethylene glycol that is too viscous to do so by any other known method. Through refinement and engineering of the technology via this project, handheld and room-based continuously operating nebulisers will produce continuous microdroplet mists of these pathogen-killing agents that deposit on surfaces throughout a hospital.Read moreRead less
Discovery of Novel Respiratory Viruses Causing Influenza-Like Illness in Healthy Australian Adults Aged 18 to 64 Years. This work will inform our understanding of the causes of acute respiratory illnesses in Australia at the present time by looking for both known and previously undiscovered respiratory viruses. Increasing the knowledge base regarding causes of disease will have downstream relevance for health policy planners seeking to assess the burden of disease due to different causes. Early ....Discovery of Novel Respiratory Viruses Causing Influenza-Like Illness in Healthy Australian Adults Aged 18 to 64 Years. This work will inform our understanding of the causes of acute respiratory illnesses in Australia at the present time by looking for both known and previously undiscovered respiratory viruses. Increasing the knowledge base regarding causes of disease will have downstream relevance for health policy planners seeking to assess the burden of disease due to different causes. Early identification and description of new diseases will allow pre-emptive evaluation of new public health threats. This information will help to ensure availability and marketability of vaccines to prevent infection.Read moreRead less
In vivo Assessment of Radiation Dose from Inhalation of Radioactive Dust in the Mining and Milling of Radioactive Ores. The project will use a combination of in vivo gamma-ray spectrometry measurements and modelling to determine quantities of retained radioactive materials in mine workers exposed to long-lived radioactive dust and the radiation doses from those materials. These studies will provide better indications of dose in a range of mining environments. Current indirect dose estimation tec ....In vivo Assessment of Radiation Dose from Inhalation of Radioactive Dust in the Mining and Milling of Radioactive Ores. The project will use a combination of in vivo gamma-ray spectrometry measurements and modelling to determine quantities of retained radioactive materials in mine workers exposed to long-lived radioactive dust and the radiation doses from those materials. These studies will provide better indications of dose in a range of mining environments. Current indirect dose estimation techniques will be tested and improved. This benefits both industry and workers as it allows greater optimisation of work practices and greater confidence for workers and their communities about the real risks from radiation exposure. Our project will enhance the viability of the Australian mining industry.Read moreRead less
Connecting man to machine: Wireless brain-machine interface. This project aims to enable direct wireless transmission of brain signals leading to reliable thought control of computers, wheelchairs, exoskeletons and vehicles. Such technology is currently limited by the fidelity, reliability, safety and longevity of the electrodes used to record signals from the brain. Partner organisation, SmartStent, has developed a novel stent-based electrode array which allows the extraction of high fidelity n ....Connecting man to machine: Wireless brain-machine interface. This project aims to enable direct wireless transmission of brain signals leading to reliable thought control of computers, wheelchairs, exoskeletons and vehicles. Such technology is currently limited by the fidelity, reliability, safety and longevity of the electrodes used to record signals from the brain. Partner organisation, SmartStent, has developed a novel stent-based electrode array which allows the extraction of high fidelity neural information without risky brain surgery and implant rejection. The project aims to combine SmartStent's stent-electrode technology with the diamond materials technology developed by the research team for hermetic encapsulation of electronics.Read moreRead less