Grapes will be exposed to volatiles from plants to investigate if the sensory profile of wine made from those grapes can be improved. The volatiles from forest fire smoke can get into grapes and negatively affect the sensory profile of wines, which is referred to as smoke taint. Grapes are most susceptible to smoke taint during their ripening stage, or veraison. Using this logic, the grapes will be subjected to plant volatiles during veraison.
This proposed project is to develop efficient sensing materials and devices that can detect trace amounts of reactive oxygen species (ROS), in particular a type of activated oxygen, namely singlet oxygen. Detection of singlet oxygen is an important but very challenging task in biological and pharmaceutical applications. The main difficulty in detecting singlet oxygen is due to its very low stability and trace amounts. Certain molecules can capture singlet oxygen through rapid chemical reactions, which result in emission of fluorescence light.
Enantioenriched isotopically labelled amino acids are useful building blocks in the synthesis of radiolabelled molecules needed for drug development. The preparation of these compounds is expensive and time consuming because the 14C-label must be incorporated at an early stage of synthesis, and the remaining amino acid structure built up subsequently We have discovered that aldehydes catalyze carboxylate exchange in amino acids with dissolved *CO2 (* = 11, 13, 14). Certain chiral aldehydes can mediate enantioselective labelling with 13CO2.
Metal nanoparticles are increasingly used in cosmetics, food packaging, textiles, toothpaste, and other ubiquitous products. Yet, their impact on our environment, food, and health is largely unknown because measuring nanoparticles in environmental and biological systems is very difficult. Similarly, measuring the uptake of metal-containing drugs by cells to develop smart therapeutics targeting tumors is also difficult because it requires analysis of numerous individual cells to assess the selectivity of the drug uptake by diseased cells versus healthy cells.
Development of leaks in abdominal cavity following surgery cause acute complications that have a high mortality rate and lead to expensive corrective procedures. These leaks are mostly detected a few days following the development of complications. Currently, there is no method for early detection. Hence, timely intervention, which can save lives, is not possible. In this aspect, the sensor development of crucial biomarkers for the detection of such leaks prior to the development of a full breach through real-time monitoring will lead to early detection and intervention for preventive care.
Lithium-ion batteries (LIBs) have been widely used in our daily lives, and the boosting development of electric vehicles and electronic devices. Sodium metal shares similar physical and chemical properties as lithium, which makes the sodium ion batteries (SIBs) as a protentional alternative to LIBs. A major advantage of SIB is its large abundance and low cost of sodium which allows the SIBs to be applied to large-scale energy storage devices than LIBs. Currently, the major challenge in SIBs is to find anode materials that can host Na+.
Deepchill and slurry ice is a dynamic medium whose fluid properties change with many different factors such as solute concentration, ice fraction or thickness, temperature, time (settling) and agitation. Once it is generated, it must be stored in different forms depending on the required final applied. Storage, fluidization and distribution of this medium is a critical part of the Deepchill System. The primary objective of this project is to simplify the design and operation of the system with reference to storage and discharge.
This project will employ a modern atmospheric testing instruments mobilized in a research purposed vehicle to make on-site and on-road measurements of air quality parameters with an emphasis on malodourous volatile organic compounds associated with the McLoughlin Point Wastewater Treatment facility and auxiliary services. This research will provide information that will profile emission sources within different process streams and assess the efficacy of abatement technologies on the facility site.
Manganese (Mn) is a contaminant of emerging concern in drinking water as a growing body of epidemiological evidence has identified adverse cognitive, neurodevelopmental and behaviour effects in children. Canada has been a global leader in advancing the regulatory framework for Mn in drinking water, and in 2019, Health Canada published a new drinking water guideline. For the first time, Mn is now regulated on a health-basis (i.e. Alberta and Nova Scotia).
Functional and molecular imaging are vital parts of modern medical diagnostics imaging. These medical imaging techniques aim for early-stage disease detection that substantially advances personalized medicine. However, there are several challenges that are remaining unresolved.