Developing next-generation mass spectrometry imaging with isomer resolution. Mass spectrometry imaging (MSI) is a rapidly emerging technology for mapping molecular distributions within biological samples. This project will bring together market-leading MSI instrumentation from the industry partner Waters Corporation with unique technologies developed at QUT and UOW to develop an integrated MSI-platform capable of achieving high mass- and spatial-resolution, as well as discrimination of lipid iso ....Developing next-generation mass spectrometry imaging with isomer resolution. Mass spectrometry imaging (MSI) is a rapidly emerging technology for mapping molecular distributions within biological samples. This project will bring together market-leading MSI instrumentation from the industry partner Waters Corporation with unique technologies developed at QUT and UOW to develop an integrated MSI-platform capable of achieving high mass- and spatial-resolution, as well as discrimination of lipid isomers. Resolution of lipid isomers using this instrumentation will afford researchers a first glimpse of isomer-resolved images that will be used to visualise tissue-specific changes resulting from underlying chemical, physical or metabolic processes; changes that are currently invisible to contemporary imaging technologies.Read moreRead less
Pluses and minuses of lipid mass spectrometry. This project aims to investigate the structural diversity of lipids. Lipids are among the most structurally diverse of all the biomolecules and thus deciphering their many functions requires bio-analytical technologies capable of uniquely identifying and quantifying individual molecules in a milieu of many thousands of analogues. Mass spectrometry is the pre-eminent technique for contemporary lipid analysis but is challenged by the preference of cer ....Pluses and minuses of lipid mass spectrometry. This project aims to investigate the structural diversity of lipids. Lipids are among the most structurally diverse of all the biomolecules and thus deciphering their many functions requires bio-analytical technologies capable of uniquely identifying and quantifying individual molecules in a milieu of many thousands of analogues. Mass spectrometry is the pre-eminent technique for contemporary lipid analysis but is challenged by the preference of certain lipids to ionise with a polarity that affords sensitive detection but does not permit detailed structure elucidation. This project will develop advanced instrumentation capable of on-demand polarity switching of ionised lipids such that the detection and interrogation of molecular structure can take place in the optimal charge state.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
Photodissociation mass spectrometry for lipidome analysis. This project aims to develop and apply novel bioanalytical mass spectrometry-based methods and workflows to illuminate the otherwise hidden structural diversity and molecular complexity of the lipidome. The structure of individual lipids define their specific biological functions. A major requirement of analytical methods employed for lipid analysis on a lipidome-wide scale, therefore, is to enable the detailed structural characterisatio ....Photodissociation mass spectrometry for lipidome analysis. This project aims to develop and apply novel bioanalytical mass spectrometry-based methods and workflows to illuminate the otherwise hidden structural diversity and molecular complexity of the lipidome. The structure of individual lipids define their specific biological functions. A major requirement of analytical methods employed for lipid analysis on a lipidome-wide scale, therefore, is to enable the detailed structural characterisation of the, potentially, tens of thousands of individual molecular lipid species that may be present within a sample of interest. This project will develop and optimise novel, ultraviolet photodissociation-tandem mass spectrometry methods which will be integrated within an automated lipidome analysis workflow, to enable comprehensive global lipidome profiling and to reveal the structural diversity of lipids involved in fundamental cellular signalling processes.Read moreRead less