Publications by authors named "Peter O'Mara"

Enzymes with multiple distinct active sites linked by substrate channels combined with control over the solution environment near the active sites enable the formation of complex products from simple reactants via the confinement of intermediates. We mimic this concept to facilitate the electrochemical carbon dioxide reduction reaction using nanoparticles with a core that produces intermediate CO at different rates and a porous copper shell. CO reacts at the core to produce CO which then diffuses through the Cu to give higher order hydrocarbon molecules.

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Introduction: Conducting ethical and high-quality health research is crucial for informing public health policy and service delivery to reduce the high and inequitable burden of disease experienced by Aboriginal and Torres Strait Islander people. Ethical guidelines and principles specifically for health research with Aboriginal and Torres Strait Islander people have been developed for use since 1987. However, there has been limited examination of how these are being applied to the conduct of research.

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Introduction: Smoking remains the leading preventable cause of death for Aboriginal and Torres Strait Islander people in Australia. Aboriginal and Torres Strait Islander people who smoke are more likely to make a quit attempt than their non-Aboriginal counterparts but less likely to sustain the quit attempt. There is little available evidence specifically for and by Indigenous peoples to inform best practice smoking cessation care.

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Bimetallic silver-copper electrocatalysts are promising materials for electrochemical CO reduction reaction (CORR) to fuels and multi-carbon molecules. Here, we combine Ag core/porous Cu shell particles, which entrap reaction intermediates and thus facilitate the formation of C products at low overpotentials, with gas diffusion electrodes (GDE). Mass transport plays a crucial role in the product selectivity in CORR.

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This study investigated the fluorescence and biocompatibility of hydrophilic silicon quantum dots (SiQDs) that are doped with scandium (Sc-SiQDs), copper (Cu-SiQDs), and zinc (Zn-SiQDs), indicating their feasibility for the bioimaging of tear film. SiQDs were investigated for fluorescence emission by the in vitro imaging of artificial tears (TheraTears), using an optical imaging system. A trypan blue exclusion test and MTT assay were used to evaluate the cytotoxicity of SiQDs to cultured human corneal epithelial cells.

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Cu-based catalysts have shown structural instability during the electrochemical CO reduction reaction (CORR). However, studies on monometallic Cu catalysts do not allow a nuanced differentiation between the contribution of the applied potential and the local concentration of CO as the reaction intermediate since both are inevitably linked. We first use bimetallic Ag-core/porous Cu-shell nanoparticles, which utilise nanoconfinement to generate high local CO concentrations at the Ag core at potentials at which the Cu shell is still inactive for the CORR.

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Context: This article considers the role of governance in Indigenous medical education research through the lens of an Australian Aboriginal research project titled Healing Conversations. The Healing Conversations project is developing and testing a targeted educational framework for improved clinical communication between healthcare practitioners and Australian Aboriginal peoples in regional and urban locations. It is proposed that an effective governance approach can support Indigenous and non-Indigenous stakeholders to work together in decision-making structures to enable outcomes that promote and prioritise Indigenous worldviews and values in medical education research.

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Strong and healthy futures for Aboriginal and Torres Strait Islander people requires engagement in meaningful decision making which is supported by evidence-based approaches. While a significant number of research publications state the research is co-designed, few describe the research process in relation to Indigenous ethical values. Improving the health and wellbeing of Aboriginal and Torres Strait Islander mothers and babies is crucial to the continuation of the oldest living culture in the world.

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Enzymes can perform complex multistep cascade reactions by linking multiple distinct catalytic sites via substrate channeling. We mimic this feature in a generalized approach with an electrocatalytic nanoparticle for the carbon dioxide reduction reaction comprising a Ag core surrounded by a porous Cu shell, providing different active sites in nanoconfined volumes. The architecture of the nanozyme provides the basis for a cascade reaction, which promotes C-C coupling reactions.

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Herein is presented a proof-of-concept study of protease sensing that combines nontoxic silicon quantum dots (SiQDs) with Förster resonance energy transfer (FRET). The SiQDs serve as the donor and an organic dye as the acceptor. The dye is covalently attached to the SiQDs using a peptide linker.

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Tobacco smoking leads to one in five deaths of Aboriginal Australians and accounts for 17% of the reversible health gap. One in two Aboriginal women are reported to smoke during pregnancy, with no effective strategies currently available for health practitioners to utilise for supporting Aboriginal women. Aboriginal community participation in primary health research is crucial to implementing ethical research, with a clear benefit to the people and communities involved.

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Background: Identification of Aboriginal and Torres Strait Islander status in healthcare settings is essential for the delivery of culturally appropriate care. Under-identification is common and practitioner confidence is a known barrier.

Objective: The objective of this research was to document the self-reported confidence of general practice registrars in identifying the Aboriginal and Torres Strait Islander status of their patients, and associations of this confidence.

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Objective: General practice is central to Aboriginal and Torres Strait Islander health care, and this area is a core element of Australian general practice (GP) training. We aimed to describe the prevalence, nature and associations of GP registrar encounters with Aboriginal and Torres Strait Islander patients.

Methods: A cross-sectional analysis from a cohort study of GP registrars' clinical consultations 2010-2013.

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Objectives: To document the frequency of recording of Aboriginal and Torres Strait Islander status in general practice (GP) clinical records and to establish associations of this recording.

Methods: Cross-sectional analysis of recording of patients' Aboriginal and Torres Strait Islander status in GP clinical records from GP training practices in four Australian states.

Results: Of the 9,704 clinical records examined, the patients' Aboriginal and Torres Strait Islander status had been documented in 5,165 (53.

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Aboriginal and Torres Strait Islander doctors walking in both worlds for the benefit of all Australians.

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