Degradation of atomically dispersed M-N-C carbon catalysts in acidic media. This project aims to provide a clear understanding of the degradation mechanisms of transition metal (M) and nitrogen (N) co-doped carbon (M-N-C) catalysts in acidic media by utilising new model catalysts, standardised degradation tests, comprehensive catalyst characterisation, and machine learning tools to interrogate mechanistic hypotheses and link degradation mechanisms to specific catalyst characteristics. This proje ....Degradation of atomically dispersed M-N-C carbon catalysts in acidic media. This project aims to provide a clear understanding of the degradation mechanisms of transition metal (M) and nitrogen (N) co-doped carbon (M-N-C) catalysts in acidic media by utilising new model catalysts, standardised degradation tests, comprehensive catalyst characterisation, and machine learning tools to interrogate mechanistic hypotheses and link degradation mechanisms to specific catalyst characteristics. This project expects to generate new knowledge on rationally designing robust hydrogen fuel cell catalysts. This will provide significant benefits, such as new knowledge on catalyst degradation, new catalysts for energy conversion applications, and collaborations with the industry to accelerate Australia’s shift to renewable energy.Read moreRead less
All-Metal Nanoporous Materials as Highly Active Electrocatalysts. This project aims to create new avenues for well-controlled large-scale synthesis of hierarchical nanoporous platinum-based architectures, and develop applications for the resultant new electrocatalysts. Developing novel high-performance, low-cost, and long-life electrode catalysts can improve the efficiency, cost, and durability of energy conversion technology. The project plans to use the unique properties of well-defined nanoar ....All-Metal Nanoporous Materials as Highly Active Electrocatalysts. This project aims to create new avenues for well-controlled large-scale synthesis of hierarchical nanoporous platinum-based architectures, and develop applications for the resultant new electrocatalysts. Developing novel high-performance, low-cost, and long-life electrode catalysts can improve the efficiency, cost, and durability of energy conversion technology. The project plans to use the unique properties of well-defined nanoarchitectures to reduce platinum content and to improve electrocatalytic performance. Nanoporous systems in electrocatalysts can provide more active sites and effective surface permeability, which should enhance catalytic activity. Project outcomes may also contribute to our understanding of the relationships among morphologies, pore structures, surface atomic structures and catalytic activities to guide the development of other kinds of high performance nanoporous catalysts.Read moreRead less
Hydrogen fuel cells with non-precious metal cathode catalysts. Low-cost and robust fuel cell technology is a cornerstone towards the success of the hydrogen economy. The project aims to address the cost and durability of hydrogen fuel cells by advancing low-cost electrocatalysts for oxygen reduction reactions. Novel non-precious catalysts will be developed, and their stability understood in fuel cells using a new approach with in situ current mapping and X-ray computed tomography. The expected ....Hydrogen fuel cells with non-precious metal cathode catalysts. Low-cost and robust fuel cell technology is a cornerstone towards the success of the hydrogen economy. The project aims to address the cost and durability of hydrogen fuel cells by advancing low-cost electrocatalysts for oxygen reduction reactions. Novel non-precious catalysts will be developed, and their stability understood in fuel cells using a new approach with in situ current mapping and X-ray computed tomography. The expected outcomes of this project include material development, improved characterisation techniques and new knowledge on electrocatalysis. The project will benefit Kohodo Hydrogen Energy by positioning them as an Australian leader in low-cost catalysts, and to Australian industries in developing the hydrogen economy. Read moreRead less
A Study To Investigate Alternative Regimens For Pneumococcal Vaccination Of Infants In A Developing Country
Funder
National Health and Medical Research Council
Funding Amount
$1,622,210.00
Summary
Streptococcus pneumoniae (Pnc) is the leading vaccine preventable cause of serious infection in infants. The current Pnc conjugate vaccine is very expensive (approximately USD $200-infant) so it is unlikely to be affordable for most developing countries. Moreover, as health care access in developing countries may be episodic and unreliable, many children do not receive either complete or timely vaccine courses. Therefore, it is important to investigate affordable and flexible ways to deliver thi ....Streptococcus pneumoniae (Pnc) is the leading vaccine preventable cause of serious infection in infants. The current Pnc conjugate vaccine is very expensive (approximately USD $200-infant) so it is unlikely to be affordable for most developing countries. Moreover, as health care access in developing countries may be episodic and unreliable, many children do not receive either complete or timely vaccine courses. Therefore, it is important to investigate affordable and flexible ways to deliver this vaccine, which are safe and effective. A recent WHO-GAVI meeting to address impediments to the introduction of these vaccines in developing countries recognized the need to evaluate other regimens of Pnc conjugate vaccine as an important research priority. This study has been deliberately formulated with that need in mind. The site for this research is Fiji. Although health services are good, Pnc disease, particularly pneumonia, remains the commonest cause of childhood morbidity and mortality. Fiji has good vaccine coverage and was the first Pacific country to introduce Hib vaccine. The arrival of the new, expensive Pnc conjugate vaccine presents a dilemma for Fiji and many similar countries. The expense of this vaccine would consume a large portion of the health budget. This study has two components: 1. A Phase 2 immunogenicity study (involving 750 infants) to evaluate regimens using reduced numbers of doses of Pnc conjugate vaccine, and using timing of dosing and combinations with the Pnc polysaccharide (PS) vaccine that may be more suited to the epidemiology of Pnc disease in developing countries. 2. An epidemiological study will measure the burden of invasive Pnc disease and pneumonia in Fiji. This will be part of a global effort to address these issues, and will be used to develop rapid assessment tools for these diseases in developing countries. We will seek cofounding for this component.Read moreRead less
Effect Of Sex Steroids, Inflammation, Environmental And Biopsychosocial Factors On Cardiometabolic Disease Risk In Men
Funder
National Health and Medical Research Council
Funding Amount
$1,817,271.00
Summary
Heart disease is more frequent and occurs at an earlier age in men than women. The reason is unknown. Apart from obesity and associated disturbances of metabolism, changes in sex hormones such as testosterone, together with the effects of inflammation may be important, and may in turn be affected by environment, lifestyle behaviours, and stress. To untangle these relationships, we will use cutting edge technology, in a large sample of men, in partnership with other international scientists.
Discovery Early Career Researcher Award - Grant ID: DE230100637
Funder
Australian Research Council
Funding Amount
$428,154.00
Summary
An integrated electrolyser for CO2 conversion from capture media. This project aims to develop an efficient electrochemical method to convert carbon dioxide (CO2) to valuable chemicals. It expects to displace the energy-costly step of its upstream CO2 capture process. The key novelty is the use of flow-through electrodes and optimal solvents to promote CO2 conversion at high rates. Expected outcomes include enhanced efficiency of CO2 sequestration, and new techniques to develop electrodes with w ....An integrated electrolyser for CO2 conversion from capture media. This project aims to develop an efficient electrochemical method to convert carbon dioxide (CO2) to valuable chemicals. It expects to displace the energy-costly step of its upstream CO2 capture process. The key novelty is the use of flow-through electrodes and optimal solvents to promote CO2 conversion at high rates. Expected outcomes include enhanced efficiency of CO2 sequestration, and new techniques to develop electrodes with well-controlled local reaction environments, which are essential for electrochemical energy conversion and storage. This will benefit Australia's environment and industries such as cement and aluminium manufacturing in managing carbon emissions, and accelerate Australia’s transition to a carbon-neutral economy.Read moreRead less
Insulin resistance (the inability of ordinarily insulin-sensitive tissues such as muscle and adipose tissue to respond to insulin) contributes to a number of diseases including diabetes and obesity. A key metabolic step in these tissues is the uptake of glucose from the blood stream. This step is accelerated by insulin thus allowing efficient clearance of glucose from the bloodstream after a meal. Our laboratory has played a major role in showing that insulin regulates glucose uptake into muscle ....Insulin resistance (the inability of ordinarily insulin-sensitive tissues such as muscle and adipose tissue to respond to insulin) contributes to a number of diseases including diabetes and obesity. A key metabolic step in these tissues is the uptake of glucose from the blood stream. This step is accelerated by insulin thus allowing efficient clearance of glucose from the bloodstream after a meal. Our laboratory has played a major role in showing that insulin regulates glucose uptake into muscle and adipose tissue by stimulating the movement of a glucose transport protein from inside the cell to the cell surface (see http:--www.imb.uq.edu.au-groups-james-glut4 for an animated description of this process). The purpose of this proposal is to dissect the molecular mechanisms by which this glucose transporter can be held inside the cell in the absence of insulin and then allowed to be released from this site moving to the surface in the presence of insulin. Our studies over the past 5 years have brought us much closer to understanding this process in detail. The identification of the molecules responsible for this regulatory step will not only aid our understanding of this process but it will also provide a valuable target for development of therapeutic agents that can be used to combat insulin resistance.Read moreRead less
Alpha-2-Macroglobulin And The Transport And Uptake Of The Hormone, Hepcidin
Funder
National Health and Medical Research Council
Funding Amount
$533,541.00
Summary
Hepcidin is a peptide hormone that is a major regulator of iron metabolism. It has been suggested that hepcidin is free in the blood. However, we recently identified that hepcidin binds with alpha-2-macroglobulin (a2-M) in the plasma and this increases the efficacy of this peptide. The demonstration that a2-M plays a role in hepcidin biology will lead to a better understanding of hepcidin physiology, the development of methods for its measurement and improved treatment of iron related diseases.
Doped metal perovskites for electrocatalysis. This project aims to discover and design perovskite metal-oxide electrocatalyst materials and develop electrocatalytic methods for efficiently driving the oxygen evolution reaction and the oxygen reduction reaction. These are the two most crucial reactions in sustainable energy cycles involving water, hydrogen and oxygen. The project’s anticipated advances in electrocatalysis efficiency for these two reactions will benefit sustainable energy technolo ....Doped metal perovskites for electrocatalysis. This project aims to discover and design perovskite metal-oxide electrocatalyst materials and develop electrocatalytic methods for efficiently driving the oxygen evolution reaction and the oxygen reduction reaction. These are the two most crucial reactions in sustainable energy cycles involving water, hydrogen and oxygen. The project’s anticipated advances in electrocatalysis efficiency for these two reactions will benefit sustainable energy technologies such as fuel cells, metal air batteries and water splitting.Read moreRead less