Extracting energy from air: mechanism of a bacterial hydrogenase. The atmosphere has recently been shown to be a key source of energy for diverse soil bacteria. Bacteria use complex enzymes, namely Huc-type hydrogenases, to harvest atmospheric hydrogen directly from air to support growth and survival. However, little is known about how Huc functions within and outside cells. By synergising expertise in microbiology, biochemistry, and chemistry, we will resolve the mechanism, assembly, and integr ....Extracting energy from air: mechanism of a bacterial hydrogenase. The atmosphere has recently been shown to be a key source of energy for diverse soil bacteria. Bacteria use complex enzymes, namely Huc-type hydrogenases, to harvest atmospheric hydrogen directly from air to support growth and survival. However, little is known about how Huc functions within and outside cells. By synergising expertise in microbiology, biochemistry, and chemistry, we will resolve the mechanism, assembly, and integration of Huc, including the basis of its remarkably high affinity and oxygen insensitivity compared to previously studied hydrogenases. This project will enable biotechnological applications, as the first study of an enzyme that extracts energy from air, and has broad ecological and biogeochemical implications.Read moreRead less
Decentralised assets trading, centralised clearing and systemic risk. This project aims to study the effect of regulating over-the-counter (OTC) financial markets on economic performance. The lack of transparency of OTC financial markets may have exacerbated the severity of the 2007-09 financial crisis. In response, regulators around the world decided to mandate centralised clearing of derivatives traded OTC, believing this would reduce system-wide risk. This project will study the regulatory ch ....Decentralised assets trading, centralised clearing and systemic risk. This project aims to study the effect of regulating over-the-counter (OTC) financial markets on economic performance. The lack of transparency of OTC financial markets may have exacerbated the severity of the 2007-09 financial crisis. In response, regulators around the world decided to mandate centralised clearing of derivatives traded OTC, believing this would reduce system-wide risk. This project will study the regulatory change’s effects on market participation, volumes of trade and prices, and the behavioural effect of shifting risk from market participants to clearinghouses. It expects to suggest remedial policies clearinghouses could implement to control market participants’ risk appetite. These can help enhance future productivity and reduce unemployment in Australia.Read moreRead less
Incomplete Information Models for Industrial Organisation. Mergers, acquisitions, and collusive conduct take place in imperfectly competitive environments where firms have incomplete information about others. Despite this, standard workhorse models for analyzing the associated competitive effects assume that firms have complete information and typically only accommodate imperfect competition on one side of the market. This project aims to remedy this deficiency by developing the economic theory ....Incomplete Information Models for Industrial Organisation. Mergers, acquisitions, and collusive conduct take place in imperfectly competitive environments where firms have incomplete information about others. Despite this, standard workhorse models for analyzing the associated competitive effects assume that firms have complete information and typically only accommodate imperfect competition on one side of the market. This project aims to remedy this deficiency by developing the economic theory and associated practical tools for the analysis of competitive effects in settings with incomplete information and market power on both sides. The project work will be presented at seminars and workshops around the globe to both academic audiences and to practitioners at competition authorities. Read moreRead less
Living on air: how do bacteria scavenge atmospheric trace gases? This project aims to determine the molecular and cellular basis of atmospheric trace gas oxidation by bacteria. Bacteria have a remarkable ability to adapt to resource limitation and environmental change by entering dormant states. Our research has shown they survive in this state by using atmospheric hydrogen and carbon monoxide as energy sources. This interdisciplinary project will determine how bacteria achieve this by elucidati ....Living on air: how do bacteria scavenge atmospheric trace gases? This project aims to determine the molecular and cellular basis of atmospheric trace gas oxidation by bacteria. Bacteria have a remarkable ability to adapt to resource limitation and environmental change by entering dormant states. Our research has shown they survive in this state by using atmospheric hydrogen and carbon monoxide as energy sources. This interdisciplinary project will determine how bacteria achieve this by elucidating the regulation, mechanism, and integration of the three uncharacterised enzymes that mediate this process. Outcomes and benefits include understanding of the processes that facilitate bacterial persistence, regulate atmospheric composition, and in turn support resilience of natural ecosystems.Read moreRead less
Early Career Industry Fellowships - Grant ID: IE230100468
Funder
Australian Research Council
Funding Amount
$450,000.00
Summary
Scalable high-performance electrolytic hydrogen generator. The project aims to demonstrate energy-efficient generation of compressed hydrogen by water electrolysis in a high pressure electrolyser test-rig produced by Melbourne company Energys Australia P/L, using high-performance membrane-electrode assemblies. Innovative electrode architectures, membranes, and method for their high through-put lamination will be developed. New knowledge in catalysis, device fabrication and materials science is e ....Scalable high-performance electrolytic hydrogen generator. The project aims to demonstrate energy-efficient generation of compressed hydrogen by water electrolysis in a high pressure electrolyser test-rig produced by Melbourne company Energys Australia P/L, using high-performance membrane-electrode assemblies. Innovative electrode architectures, membranes, and method for their high through-put lamination will be developed. New knowledge in catalysis, device fabrication and materials science is expected to be generated. The major project outcome is sustainable method for generation of compressed hydrogen at significantly reduced cost as compared to the existing technologies. Benefits include industry-ready processes for electrolyser and hydrogen production that support Australian energy industries.Read moreRead less
Wicked defaults: how to overcome the dark side of choice architecture. This project aims to investigate how defaults and product complexity might be used to exploit consumers in environments like private insurance where consumers are prone to making systematic errors. Defaults are used to nudge individuals into socially beneficial actions such as increasing their retirement savings and joining organ donor lists. However, in the hands of firms, defaults can also be used to exploit consumers by en ....Wicked defaults: how to overcome the dark side of choice architecture. This project aims to investigate how defaults and product complexity might be used to exploit consumers in environments like private insurance where consumers are prone to making systematic errors. Defaults are used to nudge individuals into socially beneficial actions such as increasing their retirement savings and joining organ donor lists. However, in the hands of firms, defaults can also be used to exploit consumers by encouraging choices that help the firm but disadvantage consumers. The project intends to study experimentally whether exploitation can be reduced via competition and reputation building systems based on consumer feedback.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE240100084
Funder
Australian Research Council
Funding Amount
$950,000.00
Summary
Australia’s fuel cells and electrolysers prototyping and testing facility. This project aims to address a major gap in Australian infrastructure for researching and developing technologies for Power to X, including hydrogen production and use. The aspiration is to establish an integrated fuel cell and electrolyser prototyping and testing facility to support Australia’s excellent fundamental research in advanced energy materials, electrocatalysis, and engineering design. The aim is to equip the r ....Australia’s fuel cells and electrolysers prototyping and testing facility. This project aims to address a major gap in Australian infrastructure for researching and developing technologies for Power to X, including hydrogen production and use. The aspiration is to establish an integrated fuel cell and electrolyser prototyping and testing facility to support Australia’s excellent fundamental research in advanced energy materials, electrocatalysis, and engineering design. The aim is to equip the research community with the capability to fabricate electrolyser and fuel cell prototypes at relevant scales to accelerate translational research in these areas. Doing so will also enable the technical and expertise platform needed to support industry's transition toward Australia’s 2050 net zero objective.Read moreRead less
Demographic and evolutionary inferences from large, whole-genome datasets. A new data structure for genome-wide datasets has allowed great improvements in the efficiency of genomic data storage and in population genomics simulations, which are crucial to developing and testing mathematical models of population history and species evolution. We will take these advances in new directions, using efficient data structures to dramatically improve inferences about: the demographic histories of popul .... Demographic and evolutionary inferences from large, whole-genome datasets. A new data structure for genome-wide datasets has allowed great improvements in the efficiency of genomic data storage and in population genomics simulations, which are crucial to developing and testing mathematical models of population history and species evolution. We will take these advances in new directions, using efficient data structures to dramatically improve inferences about: the demographic histories of populations, rates of genome change, and phylogenetic networks, and we will develop the first inference methods for the multispecies coalescent with recombination. Outcomes will include advances in understanding the evolutionary histories of humans and other species, including pathogens of importance for global health.Read moreRead less
Switching Dynamics Approach for Distributed Global Optimisation . This project aims to create a breakthrough switching dynamics approach and new technology to speed up finding optimal solutions. It will develop a distributed switching dynamics based optimisation scheme for global optimisation problems in industrial big-data environments where timely decision making is required. It will result in a practical technology for industry optimisation problems such as economic energy dispatch in smart g ....Switching Dynamics Approach for Distributed Global Optimisation . This project aims to create a breakthrough switching dynamics approach and new technology to speed up finding optimal solutions. It will develop a distributed switching dynamics based optimisation scheme for global optimisation problems in industrial big-data environments where timely decision making is required. It will result in a practical technology for industry optimisation problems such as economic energy dispatch in smart grids and optimal charging and discharging tasks in a large network of electric vehicles, helping Australian power industry improve efficiency and security, as well as training the next generation scientists and engineers for Australia in this emerging field.Read moreRead less
Evolution and role of neo-sex chromosomes in mitonuclear co-evolution. This project aims to characterize the evolution of novel, extended sex chromosomes in an Australian bird, then elucidate their role in climate-associated adaptive evolution. The species falls into two lineages bearing distinct mitochondrial genomes and nuclear-encoded mitochondrial genes carried on sex chromosomes. The project aims to test whether this extraordinary genome arrangement is splitting the species into two forms: ....Evolution and role of neo-sex chromosomes in mitonuclear co-evolution. This project aims to characterize the evolution of novel, extended sex chromosomes in an Australian bird, then elucidate their role in climate-associated adaptive evolution. The species falls into two lineages bearing distinct mitochondrial genomes and nuclear-encoded mitochondrial genes carried on sex chromosomes. The project aims to test whether this extraordinary genome arrangement is splitting the species into two forms: one adapted to hotter, drier environments, one to milder ones. This would be tackled using an innovative combination of genomics, cytogenetics, and metabolic data. Understanding the mechanisms at play would represent a major advance in ecology and evolution, with potential implications for conservation management.Read moreRead less