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Molecular UV-A Sunscreen Filters: A Systematic Chemical Study. Australia has the world's highest melanoma and and non-melanoma skin cancer rate, with the latter representing the highest healthcare cost of any cancer. Current sunscreen formulations provide limited protection against solar ultraviolet-A radiation. This project is designed to improve this situation through developing new sunscreen filters for improved protection against ultraviolet-A radiation.
Biosynthesis of multiple-nonmetal codoped titania nanoparticles for visible light photocatalysis. Nano-photocatalysts' are particles of very small size that can degrade organic wastes and harmful microorganisms, when exposed to light. Titania is the most commonly used photocatalyst, but the limitation with existing titania is that it is mainly active in ultraviolet (UV) light. UV-light cannot be used for indoor applications because UV is mutagenic and causes cancer. This project will use an eco- ....Biosynthesis of multiple-nonmetal codoped titania nanoparticles for visible light photocatalysis. Nano-photocatalysts' are particles of very small size that can degrade organic wastes and harmful microorganisms, when exposed to light. Titania is the most commonly used photocatalyst, but the limitation with existing titania is that it is mainly active in ultraviolet (UV) light. UV-light cannot be used for indoor applications because UV is mutagenic and causes cancer. This project will use an eco-friendly approach to develop novel titania nanoparticles, which will be active in visible light. Success will lead to new options in the management of our organic wastes and wastewaters (global problems), plant disease control, clean clinical surroundings, and add value to our day-to-day products like self-cleaning windows, and textiles.Read moreRead less
Development of a Novel Photoelectrochemical Method for Ultra-sensitive and Selective Determination of Organic Pollutants. Rapidly deteriorating environmental conditions have caused worldwide fresh water shortage problems. For Australia, this is an urgent issue due to our limited fresh water resources. Globally, all levels of governments and legislative authorities have attempted to adopt stricter environmental legislation and better water resource management practice to address these urgent prob ....Development of a Novel Photoelectrochemical Method for Ultra-sensitive and Selective Determination of Organic Pollutants. Rapidly deteriorating environmental conditions have caused worldwide fresh water shortage problems. For Australia, this is an urgent issue due to our limited fresh water resources. Globally, all levels of governments and legislative authorities have attempted to adopt stricter environmental legislation and better water resource management practice to address these urgent problems. However, these priorities cannot be achieved until large scale and accurate environmental data are available. The success of the project would result in a new environmental monitoring system capable of online, real-time monitoring of environmental water quality, which will directly benefit water resource management practice in Australia. Read moreRead less
Development of Nanostructured TiO2 Electrodes for Photoelectrocatalytic Degradation of Organic and Microbial Pollutants in Wastewater. Australia is one of the driest continents and re-use of water/wastewater has been an urgent issue. Photoelectrocatalytic oxidation processes based on nanostructured TiO2 electrode are able to mineralize common aquatic organic and microbial pollutants. The proposed technology has the advantages of strong oxidation power and cheap production cost, and it is chemi ....Development of Nanostructured TiO2 Electrodes for Photoelectrocatalytic Degradation of Organic and Microbial Pollutants in Wastewater. Australia is one of the driest continents and re-use of water/wastewater has been an urgent issue. Photoelectrocatalytic oxidation processes based on nanostructured TiO2 electrode are able to mineralize common aquatic organic and microbial pollutants. The proposed technology has the advantages of strong oxidation power and cheap production cost, and it is chemically stable, robust under UV illumination, and most importantly, environmentally friendly. The success of the project can place Australia in a leading position of developing cutting-edge TiO2 nano-material-based photoelectrochemical technologies for environmental wastewater treatment and drinking water disinfection. Read moreRead less
Photodegradation of Oestrogenic Pollutants in the aquatic environment. Recent media attention has highlighted the problem of oestrogenic pollutants in the aquatic environment. This research proposes to investigate Photocatalysis of oestrogens in water using the magnetic titanium dioxide particles developed at the Centre for Particle and Catalyst Technologies in the University of New South Wales, Sydney. The natural oestrogens 17b-oestradiol, oestrone and oestriol and the synthetic oestrogen 17a- ....Photodegradation of Oestrogenic Pollutants in the aquatic environment. Recent media attention has highlighted the problem of oestrogenic pollutants in the aquatic environment. This research proposes to investigate Photocatalysis of oestrogens in water using the magnetic titanium dioxide particles developed at the Centre for Particle and Catalyst Technologies in the University of New South Wales, Sydney. The natural oestrogens 17b-oestradiol, oestrone and oestriol and the synthetic oestrogen 17a-ethynyl oestradiol (the main constituent of the contraceptive pill) will be investigated in the photocatalytic system. Degradation will be monitored using various analytical techniques. Other commercial catalysts will also be investigated and compared with the magnetic catalyst and previous catalysts tested.Read moreRead less
Advanced water treatment technologies to minimize the formation of emerging disinfection by-products in potable and reuse water. Disinfectant management and disinfection by-products are of concern to water utilities, water treatment researchers and consumers worldwide. The project will make a world-class contribution to these issues, through use of state-of-the-art equipment and developed technologies. Sophisticated characterization of disinfection by-product precursors, especially poorly define ....Advanced water treatment technologies to minimize the formation of emerging disinfection by-products in potable and reuse water. Disinfectant management and disinfection by-products are of concern to water utilities, water treatment researchers and consumers worldwide. The project will make a world-class contribution to these issues, through use of state-of-the-art equipment and developed technologies. Sophisticated characterization of disinfection by-product precursors, especially poorly defined less volatile species, will provide insights into the relationship between their chemical structures and behaviour in treatment processes, benefiting all water utilities. The project will inform new drinking water guidelines and assist water utilities to balance the competing requirements of maintaining effective pathogen barriers versus disinfection by-product control.Read moreRead less
Sources, fate and exposure pathways for emerging persistent organic pollutants in Australia. Brominated flame retardants and perfluorinated chemicals have received much attention from media and environmental groups. They accumulate in biota and humans and levels are shown to be increasing. It is proposed they be included in the global treaty on persistent organic pollutants (POPs), recently ratified by Australia. This project aims to determine sources, fate and exposure pathways for these che ....Sources, fate and exposure pathways for emerging persistent organic pollutants in Australia. Brominated flame retardants and perfluorinated chemicals have received much attention from media and environmental groups. They accumulate in biota and humans and levels are shown to be increasing. It is proposed they be included in the global treaty on persistent organic pollutants (POPs), recently ratified by Australia. This project aims to determine sources, fate and exposure pathways for these chemicals with an emphasis on exposure to infants. This will provide information for risk assessment development and more effective management of these chemicals. Furthermore, the study's approach and results will contribute to a rationalization of the issues related to emerging POPs. Read moreRead less
A multi-metal ion sensor for analysis of environmental water. The aim of this research project is to develop an electrochemical sensor array on a single chip for the detection of several heavy metals in wastewater samples. Each electrode in the array will be modified with a different metal-binding peptide ligand; resulting in a characteristic response pattern for a given metal ion. Deconvolution of the sensor response into the response patterns of the individual metals will be achieved using p ....A multi-metal ion sensor for analysis of environmental water. The aim of this research project is to develop an electrochemical sensor array on a single chip for the detection of several heavy metals in wastewater samples. Each electrode in the array will be modified with a different metal-binding peptide ligand; resulting in a characteristic response pattern for a given metal ion. Deconvolution of the sensor response into the response patterns of the individual metals will be achieved using pattern recognition software employing artificial neural networks and other multivariate techniques. Successful development of the multi-analyte sensor will allow the rapid monitoring of environmentally important metal ions in the field.Read moreRead less
Atmospheric Free-Radicals: Exploring the Role of Nitrate Radicals in the Oxidative Damage of Bio-Surfaces. This project falls within the National Research Priority 2 (Promoting and Maintaining Good Health) as identified by the ARC, specifically Priority Goal 2 (Ageing well, ageing productively) and Priority Goal 3 (Preventive healthcare). The study will lead to a better understanding of environmental factors influencing health and welfare of Australians every age and will provide unique opport ....Atmospheric Free-Radicals: Exploring the Role of Nitrate Radicals in the Oxidative Damage of Bio-Surfaces. This project falls within the National Research Priority 2 (Promoting and Maintaining Good Health) as identified by the ARC, specifically Priority Goal 2 (Ageing well, ageing productively) and Priority Goal 3 (Preventive healthcare). The study will lead to a better understanding of environmental factors influencing health and welfare of Australians every age and will provide unique opportunities for students to be trained in cutting-edge basic research. Knowledge and fundamental understanding of the damage of bio-surfaces caused by atmospheric free-radical oxidants and their potential role in ageing processes will help to develop novel medical strategies, which substantially contribute to the quality of Australian sciences.Read moreRead less
Metal emissions from petrol and the future health of children. We aim to determine the contribution of manganese, lead, and other metal emissions from motor vehicles to the environment and exposure of
children. Manganese is of potential concern because of (a) its recent
introduction as methylcyclopentadienyl manganese tricarbonyl (MMT) in
Australia as a fuel additive to replace lead and (b) the lack of information on environmental levels, exposure, and long-term health effects, especially in ....Metal emissions from petrol and the future health of children. We aim to determine the contribution of manganese, lead, and other metal emissions from motor vehicles to the environment and exposure of
children. Manganese is of potential concern because of (a) its recent
introduction as methylcyclopentadienyl manganese tricarbonyl (MMT) in
Australia as a fuel additive to replace lead and (b) the lack of information on environmental levels, exposure, and long-term health effects, especially in children. This project conforms with a Designated National Research Priority and is a collaborative project bringing together researchers from academia, CSIRO, industry, and the US.
Environmental Protection Agency.
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