Bioinorganic chemistry between immune cell and pathogen. This project aims to investigate the bioinorganic chemistry that occurs when immune system cells encounter pathogens and they try to kill one another, or in the case of a pathogen, to also modify the genetics of the mammalian cell to enable its intracellular survival. Pathogenic bacteria and fungi accumulate chromium (Cr) in their membranes and it was recently discovered that Cr is likely to be an important virulence factor. Similarly, H ....Bioinorganic chemistry between immune cell and pathogen. This project aims to investigate the bioinorganic chemistry that occurs when immune system cells encounter pathogens and they try to kill one another, or in the case of a pathogen, to also modify the genetics of the mammalian cell to enable its intracellular survival. Pathogenic bacteria and fungi accumulate chromium (Cr) in their membranes and it was recently discovered that Cr is likely to be an important virulence factor. Similarly, Hyperaccummulation of Nickel (Ni) is also involved in virulence. The project will investigate the roles of Cr and Ni in virulence using advanced spectroscopic imaging and biochemical techniques. These insights will provide new knowledge on the innate immune system and may lead to more efficacious treatments for serious infections.Read moreRead less
The RGG/RG motif as an RNA chaperone: advancing CRISPR-Cas RNA technology. This project investigates the way in which protein molecules interact effectively with RNA molecules and also aims to enhance the CRISPR-Cas13a system for RNA detection. Innovative approaches will be used to test the role of a particular protein motif, called the RGG/RG motif, in remodelling RNA structure and enhancing the Cas13a protein. This knowledge is expected to shift our understanding of protein-RNA interactions th ....The RGG/RG motif as an RNA chaperone: advancing CRISPR-Cas RNA technology. This project investigates the way in which protein molecules interact effectively with RNA molecules and also aims to enhance the CRISPR-Cas13a system for RNA detection. Innovative approaches will be used to test the role of a particular protein motif, called the RGG/RG motif, in remodelling RNA structure and enhancing the Cas13a protein. This knowledge is expected to shift our understanding of protein-RNA interactions that are fundamental to almost every aspect of cell biology. The project is intended to benefit Australia through contributing to fundamental knowledge in the field, facilitating the development of new CRISPR-Cas biotechnologies for RNA detection and through the training of young researchers in frontier technologies. Read moreRead less
Aptamer imaging mass spectrometry for biomarker quantification. This project aims to develop novel methods for quantifying bio-markers in histological specimens using aptamers, lanthanide visualising tags and laser ablation plasma mass spectrometry. Aptamers are short synthetic strands of nucleic acid with complex three dimensional structures that bind targets with exquisite specificity. This technology meets a major gap in current imaging modalities, has wide application to basic biology and di ....Aptamer imaging mass spectrometry for biomarker quantification. This project aims to develop novel methods for quantifying bio-markers in histological specimens using aptamers, lanthanide visualising tags and laser ablation plasma mass spectrometry. Aptamers are short synthetic strands of nucleic acid with complex three dimensional structures that bind targets with exquisite specificity. This technology meets a major gap in current imaging modalities, has wide application to basic biology and diagnostics, and will eliminate the subjective interpretation of immunohistochemical stains.Read moreRead less
Understanding and controlling bioavailability: passive dosing of persistent organic pollutants into recombinant cell bioassays. Bioassays with mammalian cell lines may replace animal testing in chemical risk assessment if issues with limited sensitivity can be overcome for very hydrophobic chemicals such as polychlorinated dibenzodioxins. The project will solve this problem by developing a polymer-release dosing technique that assures defined and constant exposure.
Single cell glycomics: mapping the surface glycan signature of cells. This project aims to develop a platform technology for multiplexed glycan mapping of the surface of a single cell to address challenges of functional glycomics by utilising a conceptually new approach. By combining newly designed plasmonic nanoparticles with surface-enhanced Raman scattering tags and multiple specific carbohydrate-recognising lectins, this project expects to produce a generic technology that is capable of non- ....Single cell glycomics: mapping the surface glycan signature of cells. This project aims to develop a platform technology for multiplexed glycan mapping of the surface of a single cell to address challenges of functional glycomics by utilising a conceptually new approach. By combining newly designed plasmonic nanoparticles with surface-enhanced Raman scattering tags and multiple specific carbohydrate-recognising lectins, this project expects to produce a generic technology that is capable of non-destructive barcoding of the surface glycan signature of single cells in their native state and in response to metabolic perturbations. Expected project outcomes include advancing knowledge in nanobiotechnology, glycobiology and cell biology by being able to easily monitor changes to the surface of single cells.Read moreRead less
Tuneable “Nano-Shearing”: An Innovative Mechanism for the Accurate and Specific Capture of Cells and Molecules. Recent investigations have discovered a tuneable electro-hydrodynamic force which drives lateral fluid motion within a few nanometers of an electrode surface. Because the magnitude of this fluid shear force can be tuned externally (for example, via the application of an AC electric field), it provides a new capability to physically displace weakly (non-specifically) bound cellular and ....Tuneable “Nano-Shearing”: An Innovative Mechanism for the Accurate and Specific Capture of Cells and Molecules. Recent investigations have discovered a tuneable electro-hydrodynamic force which drives lateral fluid motion within a few nanometers of an electrode surface. Because the magnitude of this fluid shear force can be tuned externally (for example, via the application of an AC electric field), it provides a new capability to physically displace weakly (non-specifically) bound cellular and molecular analytes. By performing research to further understand and develop this tuneable effect, this project aims to build and test a new platform technology to enable highly efficient capture and specific detection of low concentration pathogenic molecules and circulating tumour cells (CTCs).Read moreRead less
Illuminating hidden processes in emissive lanthanoid complexes. This project aims to understand the antenna effect used to sensitise lanthanoid luminescence. Despite their use in modern high-tech applications, from optical fibre amplifiers (telecommunications) to luminescent probes and sensors (biological imaging), understanding is largely based on speculation or generalised 'rules-of-thumb', severely limiting progress in the field. This project will research these processes, using chemical synt ....Illuminating hidden processes in emissive lanthanoid complexes. This project aims to understand the antenna effect used to sensitise lanthanoid luminescence. Despite their use in modern high-tech applications, from optical fibre amplifiers (telecommunications) to luminescent probes and sensors (biological imaging), understanding is largely based on speculation or generalised 'rules-of-thumb', severely limiting progress in the field. This project will research these processes, using chemical synthesis, theory and spectroscopic techniques. This is expected to lead to new emissive lanthanoid-based compounds using 'a priori' approaches, with better performance than current gold standards and references. Intellectual property created will lead to new commercial products, and to creation of new Australian based spin-off/start-up companies.Read moreRead less
Building bio-inspired smart nanochannels for virus detection. This project aims to harness high-precision silicon nanofabrication methods to create the next generation of bio-inspired viral biosensors. The new technology would enable prompt, cost-efficient, and accurate detection of virus contamination of our water and food supplies. The project plans to fabricate arrays of parallel double-layered nanochannels in silicon via templated etching, with surface functionalisation to display receptors. ....Building bio-inspired smart nanochannels for virus detection. This project aims to harness high-precision silicon nanofabrication methods to create the next generation of bio-inspired viral biosensors. The new technology would enable prompt, cost-efficient, and accurate detection of virus contamination of our water and food supplies. The project plans to fabricate arrays of parallel double-layered nanochannels in silicon via templated etching, with surface functionalisation to display receptors. These nanochannels are designed to act as size-selective filters for electrochemical and electrochemiluminescence sensing. The project plans to explore innovative signal amplification and multiplexing capabilities for ultrasensitive detection of norovirus and bacteriophages.Read moreRead less
Lectin based open tubular micro-reactors for probing protein-protein binding. This project seeks to develop non-invasive technology for the measurement and quantitation of lectin-carbohydrate binding events, in the first instance glycopeptides and glycoproteins. The goal is not only to provide accurate protein-protein association and dissociation constant data within the developed system, but to do so within an enclosed micro-fluidic environment, with the added advantages of also providing ‘trap ....Lectin based open tubular micro-reactors for probing protein-protein binding. This project seeks to develop non-invasive technology for the measurement and quantitation of lectin-carbohydrate binding events, in the first instance glycopeptides and glycoproteins. The goal is not only to provide accurate protein-protein association and dissociation constant data within the developed system, but to do so within an enclosed micro-fluidic environment, with the added advantages of also providing ‘trap and release’ extraction capabilities, and being easily coupled to both chromatographic and mass spectrometry systems. Read moreRead less
Disinfection by-products formed during drinking water treatment: reducing the unknowns is managing risk. Disinfection of drinking water is a successful measure to reduce water-borne diseases and protect health. However, epidemiological evidence links bladder cancer to disinfection by-products formed during drinking water treatment. Despite decades of research the causative agents remain to be identified. To fill this knowledge gap, this project will quantify the fraction of toxicity that cannot ....Disinfection by-products formed during drinking water treatment: reducing the unknowns is managing risk. Disinfection of drinking water is a successful measure to reduce water-borne diseases and protect health. However, epidemiological evidence links bladder cancer to disinfection by-products formed during drinking water treatment. Despite decades of research the causative agents remain to be identified. To fill this knowledge gap, this project will quantify the fraction of toxicity that cannot be explained by known chemicals in water samples treated with different disinfectants using a combination of chemical analysis and in-vitro bioassays. Samples with high unexplained effects will then be fractionated to isolate toxicologically relevant disinfection by-products, which will ultimately be identified with non-target chemical analysis.Read moreRead less