Lichens are a symbiosis of fungi and algae or cyanobacteria. Lichen substances have been reported to show a wide array of biological activities including antiviral, antioxidant, antitumor action. This project aims to establish a reliable way to prepare (?)-acaranoic acid, a lichen substance isolated in 1895, from commercially available chemicals. The proposed synthesis of this […]

L’objectif principal de ce projet est d’évaluer l’effet de la cryoconcentration pour la production d’un extrait riche en molécules antioxydantes à partir des petits fruits de la région du Lac-St-Jean. Ces études auront permis d’ouvrir la voie à des projets industriels en vue de valoriser les petits fruits produits de la région. Une analyse de […]

With the advent of fuel cell technology, people began to believe implementation of a zero-emission energy system through the construction of a hydrogen-based energy infrastructure. The conventional system for hydrogen production is water electrolysis; however, the production cost is far too expensive for widespread adoption due to the usage of noble metals required as electrocatalysts. […]

In photoacoustic (PA) imaging, pulsed light irradiates a sample. Light-absorbing molecules experience a pressure rise and generate an ultrasound wave, from which, an image of the sample is obtained. If the image contrast is insufficient, contrast enhancement is applied by locally introducing stronger light absorbers. In ultrasound imaging (US), shelled gas bubbles are used to […]

En 2019, environ 200 000 Canadiens seront diagnostiqués d’un cancer. La moitié de ces patients seront traités par radiothérapie. Si l’objectif est de maximiser l’irradiation de la tumeur et minimiser l’impact sur les organes sains environnants, des erreurs pouvant avoir des conséquences désastreuses se produisent. Actuellement, aucune vérification en temps réel de la dose radioactive […]

Lorsqu’une impulsion lumineuse intense se propage dans une fibre optique, des interaction non linéaires surviennent et modifient le contenu spectral de l’impulsion. De façon imagée, l’impulsion lumineuse change de “couleur” à mesure qu’elle se propage dans la fibre. Ces interactions non linéaires sont étudiées exhaustivement depuis l’avènement du laser en 1960. Cependant, l’étude de la […]

This project will experimentally establish a completely new method for accessing enantiopure materials starting from racemic substrates: stereoretentive-enantioconvergent catalysis. The ability to synthesize chiral molecules in enantiopure form is vitally important, most recognizably for the pharmaceutical industry. This is because the molecules of life are chiral (e.g., D-sugars and L-amino acids) and enantiomers often interact […]

Electrochemical technologies, such as fuel cells and electrolysers, could play an important role in the attempt to diversify the energy market. These devices can be used to produce clean, renewable energy and fuels. However, the technology cost is still far too high, preventing their large-scale implementation. A significant portion of the production cost comes from […]

Artificial Neural Networks are powerful tools used in the field of artificial intelligence. Inspired by the human brain, they have shown very good results in certain tasks, such as image classification and even in the generation of new images. The problem with neural networks is that we do not understand why they are working so […]

Dielectric elastomers or “artificial muscles” are a class of electroactive polymers that undergo expansion when subjected to an applied electric field. Polysiloxanes commonly referred to as silicones are often the material of choice for dielectric elastomers due to their excellent mechanical properties. However, they suffer from minimal expansion when subjected to an electrical field. This […]

The work that the Glowacki lab has addressed concerns two main issues of VR: a lack of multi-user interaction and heavy processing requirements. Using remote cloud supercomputing facilities, his lab can access the processing power to model in real time incredibly complex mathematically systems, with the computational physics simulations performed off-site, thereby enabling multi-user interactions. […]

L’objectif principal du présent projet est d’améliorer et de valider une approche globale et intégrée de l’analyse de la stabilité des pentes minières. Il permettra également d’améliorer la flexibilité et l’adaptabilité de l’approche permettant de considérer rapidement un nouveau design de fosse et/ou de nouvelles données géomécaniques. Ceci est un atout majeur étant donné la […]