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Development Of A Fibre-optic Flow Sensor To Monitor Blood Platelet Adhesive Function.
Funder
National Health and Medical Research Council
Funding Amount
$187,550.00
Summary
The ability to accurately diagnose platelet dysfunction is key to the clinical management of many cardiovascular diseases which represent a major cause of mortality in the industrialised world. At present there is no clinically robust instrument that can accurately assess abnormal platelet function under conditions that closely mimic the physiological environment. We aim to develop a sensitive prototype instrument for the clinical assessment of platelet function. We propose to develop this medic ....The ability to accurately diagnose platelet dysfunction is key to the clinical management of many cardiovascular diseases which represent a major cause of mortality in the industrialised world. At present there is no clinically robust instrument that can accurately assess abnormal platelet function under conditions that closely mimic the physiological environment. We aim to develop a sensitive prototype instrument for the clinical assessment of platelet function. We propose to develop this medical device as a relatively cheap and portable point of care instrument that can be marketed internationally.Read moreRead less
Spectrometer Module For Surface Enhanced Raman Scattering Spectroscopy In Glucose Analysis
Funder
National Health and Medical Research Council
Funding Amount
$385,151.00
Summary
Scientists have developed a number of incredibly powerful and sophisticated techniques to identify chemicals and measure their concentrations in the laboratory. However, it remains a major challenge to perform these measurements under everyday circumstances. For example, surface-enhanced Raman scattering (SERS) has gained widespread recognition as a technique for trace chemical detection, but it remains confined to a small number of specialist laboratories. For this reason, Dr Paul Stoddart at S ....Scientists have developed a number of incredibly powerful and sophisticated techniques to identify chemicals and measure their concentrations in the laboratory. However, it remains a major challenge to perform these measurements under everyday circumstances. For example, surface-enhanced Raman scattering (SERS) has gained widespread recognition as a technique for trace chemical detection, but it remains confined to a small number of specialist laboratories. For this reason, Dr Paul Stoddart at Swinburne University of Technology recognised a need for more practical SERS probes for field applications. His team has now developed a proprietary SERS probe, based on an optical fibre that is little thicker than a hair. These optical fibres can form the core element of field-portable SERS spectrometers. This work has recently been boosted by the discovery in the United States that SERS can be used to monitor glucose in blood. The development of a continuous glucose monitor has long been a holy grail of sensor research, because of the millions of diabetes sufferers who regularly perform the painful finger prick test. For SERS to provide a practical solution to glucose monitoring, it is recognised that SERS optical fibres are needed for minimally invasive probes. With support from Biopharmica and the Diabetes Australia Research Trust, Dr Stoddart's team has now demonstrated that sensitive SERS probes can be produced in large quantities. The next objective is to develop a prototype low-cost SERS spectrometer for use as part of a continuous glucose monitoring system. This will require the development of a laser source and spectroscopic system that can interface to the SERS probes. It is proposed to use an Australian designed and manufactured laser system based on a low-power narrow-linewidth laser diode. The project plans to bring together Swinburne University, OptoTech and Grey Innovation in order to develop a commercially scaleable and robust device.Read moreRead less
Microfluidic Device Fo The Quantitative Assessment Of Blood Platelet Aggregation Behaviour
Funder
National Health and Medical Research Council
Funding Amount
$270,114.00
Summary
This project will develop a low-cost microfluidic chip which utilises dynamic shear stress to assess the propensity of blood clotting. This tool will analyze a tiny sample of blood and will predict excessive or ineffective clotting. The project will develop the chip and a low-cost 'chip reader' such that the tool can be operated at the point of care with only basic training.
Development Of A Prototype Production System For Optical Fibre Diagnostic Probes
Funder
National Health and Medical Research Council
Funding Amount
$191,598.00
Summary
Advances in nanotechnology have led to new techniques for the precise fabrication of nanometre scale structures. A recent breakthrough by the applicants now allows high-quality nanostructures to be stamped onto the tip of low-cost optical fibre probes. When coated with silver, these sensitive probes can be used for continuous monitoring of blood glucose in diabetics and in critical care situations. This project aims to develop a prototype manufacturing system for optical fibre glucose probes.
Assessment Of Bilateral Oedema By Bioelectrical Impedance Analysis
Funder
National Health and Medical Research Council
Funding Amount
$180,000.00
Summary
Swelling of tissue due to fluid accumulation, known as oedema, is one of the earliest signs of diseases such as kidney failure, burn injury or lymphedema. All of these are not uncommon conditions. Lymphedema, for example, is a common sequela of radiotherapy or surgery in the treatment of malignancies such as breast, uterine, and prostatic carcinoma. It is reported to occur in up to 40% of patients depending on the type of surgery and whether or not the patient received radiotherapy. It is estima ....Swelling of tissue due to fluid accumulation, known as oedema, is one of the earliest signs of diseases such as kidney failure, burn injury or lymphedema. All of these are not uncommon conditions. Lymphedema, for example, is a common sequela of radiotherapy or surgery in the treatment of malignancies such as breast, uterine, and prostatic carcinoma. It is reported to occur in up to 40% of patients depending on the type of surgery and whether or not the patient received radiotherapy. It is estimated that at any time 100000 women are suffering from post- mastectomy lymphedema in Australia alone. Treatment of breast cancer alone therefore, given the incidence of the disease, produces a large at-risk population. Add to this other causes of oedema and the magnitude of the problem becomes clearly apparent. The presence of chronic oedema is often a disfiguring and disabling disorder, usually accompanied by pain, recurrent infection, reduced mobility and impaired function. In acute oedema the problem often resolves with recovery from the underlying pathology. In chronic oedema, progression may be arrested by early intervention including complex physical therapy (exercise regimen, compression bandaging, and massage) which is effective in reducing limb volume, in improving the quality of life, function and body image of patients. Although the assessment of oedema is clearly of clinical importance, relatively few objective and accurate techniques for its measurement exist. Research conducted over the past decade by the applicants has pioneered the Use of Bioelectrical Impedance Analysis for the assessment of lymphedema. This study aims to translate this basic research into clinical practice. Sensitivity and specificity studies will establish normative and threshold values for impedance measurements that can be used as presumptive indicators of oedema. User friendly technology and equipment suitable for clinical use will be developed which should improve treatment therapies.Read moreRead less
We will conduct a clinical trial of the effectiveness of a continuous auditory display of an anesthetized patient's respiratory status. Expired carbon dioxide monitoring has helped reduce respiratory incidents since its widespread introduction in the late 1980s, but a continuous auditory display of respiratory status may reduce incidents further. We will conduct a clinical trial with 10 anaesthetists of continuous auditory respiratory monitoring. Successful outcome may lead to commercial uptake.
Development And Clinical Evaluation Of A Depth Of Anaesthesia Monitor
Funder
National Health and Medical Research Council
Funding Amount
$424,785.00
Summary
Waking up during surgery (awareness under anaesthesia) is a frightening reality for some patients. Although uncommon (occurring in about 1 in 1000 operations), it remains one of the main concerns of patients before their surgery. Recent studies (including our own) have demonstrated that processed EEG monitoring using bispectral index (BIS) can markedly reduce the risk of awareness. Other EEG monitors are being developed, but each have weaknesses. As approximately two million Australians have a g ....Waking up during surgery (awareness under anaesthesia) is a frightening reality for some patients. Although uncommon (occurring in about 1 in 1000 operations), it remains one of the main concerns of patients before their surgery. Recent studies (including our own) have demonstrated that processed EEG monitoring using bispectral index (BIS) can markedly reduce the risk of awareness. Other EEG monitors are being developed, but each have weaknesses. As approximately two million Australians have a general anaesthetic each year, about 2000 will suffer an episode of awareness. More than 60 million people around the world have an anaesthetic, and so the problem is substantial. This suggests the potential benefits (health outcomes, commercial gains) are very great. In 2000 less than 5% of US hospitals used BIS monitoring; the current figure in the US is about 69% of the best-rated hospitals (US News and World Report) and 78% of teaching hospitals. A similar rapid growth is occurring in Australia and Europe. We are working with a successful Australian Company (Compumedics Ltd) to develop a better awareness monitor. We plan studies in groups of patients have surgery.Read moreRead less
A Novel Treatment For Ameliorating Retinal Vascular Disease
Funder
National Health and Medical Research Council
Funding Amount
$366,685.00
Summary
Retinal vascular disease is a leading cause of blindness and is currently treated by laser photocoagulation surgery. Although successful, this treatment is associated with serious side effects. Recently, Ellex Pty has developed a novel laser called the 2RT laser that is likely to be effective without the accompanying side effects. This study will allow examine the effect of the 2RT laser in animal models of retinal vascular disease so as to complete preclinical development of this laser.
Development Of A Smart Arthroscopy System And Prototype Probe For Joint Tissues
Funder
National Health and Medical Research Council
Funding Amount
$230,632.00
Summary
This project relates to the ever growing use of arthroscopy in the management of joint defects. An innovative probe that will combine all the molecular, microstructural and biomechanical characteristics of joint articular cartialge and bone for the purposes of diagnosis, treatment, treatment-related decisions, comparison of the effectiveness of treament methods and post treatment evaluation will be developed. This system will produce spin-offs for artrhoscopy of other soft tissues and bodies.