Houman Moteshareie

Digital photocorrosion biosensing of Bacillus cereus group spores

Ishika Ishika, Walid Mohamed Hassen, René St‐Onge, Houman Moteshareie et autres

Monitoring pathogenic bacteria in anthropogenic and natural water reservoirs remains a major challenge for health authorities, requiring the development of rapid, portable, low-labor, and cost-effective detection methods. Digital photocorrosion (DIP) using GaAs/AlGaAs biosensors has recently demonstrated promising results for detecting Legionella pneumophila …

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UGA4 and YBR062C Regulate Oxidative Stress Tolerance Under Heavy Metal Toxicity

Mustafa Al‐gafari, Houman Moteshareie, Thomas David Daniel Kazmirchuk, Jiashu Wang et autres

Heavy metals impose a major cellular stress by promoting protein dysfunction and the accumulation of reactive oxygen species (ROS). In Saccharomyces cerevisiae, the glutathione S-transferase Ure2p is a key determinant of resistance to metal-induced oxidative stress and can be synthesized through a …

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PFOS and PFOA exposure induces liver injury and sex-dependent immune effects in C57BL/6 mice

Amelie Blais, Allison Loan, Eunnara Cho, Asia Woodtke et autres

Per- and polyfluoroalkyl substances (PFASs) are persistent environmental contaminants. Perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), representing carboxylate and sulfonate subclasses, are among the most frequently detected PFASs in biomonitoring studies. We characterized the hepatotoxicity and immunotoxicity of PFOS and PFOA in …

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PFOS and PFOA Exposure Induces Liver Injury and Sex-Dependent Immune Effects in C57BL/6 Mice

Amelie Blais, Allison Loan, Eunnara Cho, Asia Woodtke et autres

Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants. Perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), representing carboxylate and sulfonate subclasses, are among the most frequently detected PFAS in biomonitoring studies. We characterized the hepatotoxicity and immunotoxicity of PFOS and PFOA in …

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PFOS and PFOA Exposure Induces Liver Injury and Sex-Dependent Immune Effects in C57BL/6 Mice

Amelie Blais, Allison Loan, Eunnara Cho, Asia Woodtke et autres

Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants. Perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), representing carboxylate and sulfonate subclasses, are among the most frequently detected PFAS in biomonitoring studies. We characterized the hepatotoxicity and immunotoxicity of PFOS and PFOA in …

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Digital photocorrosion biosensing of Bacillus cereus group spores

Ishika Ishika, Walid Mohamed Hassen, René St‐Onge, Houman Moteshareie et autres

Artificial Intelligence Reveals Nature: Functional Parallels Between a Designed and a Natural Peptide

Jiashu Wang, Thomas David Daniel Kazmirchuk, Maryam Hajikarimlou, Mustafa Al‐gafari et autres

Natural peptides derived from plants have been an important source of medical substances for several decades. Due to their mechanism of action, chemical potential, and favourable side effect profile, these peptides represent a safer alternative to synthetic pharmaceutical treatments. In this study, …

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Chemical influence on photoluminescence intensity in digitally and sustainably photocorroding GaAs/Al0.35Ga0.65As nanoheterostructures

René St‐Onge, Walid Mohamed Hassen, Houman Moteshareie, Azam F. Tayabali et autres

International audience

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Photoluminescence Monitored Sustainable Digital Photocorrosion of GaAs/Al0.35Ga0.65As Quantum Well Microstructures

René St‐Onge, Walid Mohamed Hassen, Houman Moteshareie, Azam F. Tayabali et autres

Digital photocorrosion (DIP) of GaAs/AlGaAs nanoheterostructures is an attractive method for detecting surface‐immobilized electrically charged biomolecules such as bacteria. The process is normally carried out in ammonia‐ or phosphate‐buffered saline and monitored in situ to reveal photoluminescence (PL) intensity maximum (PLmax) when …

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Regenerable photonic aptasensor for detection of bacterial spores with stacks of GaAs–AlGaAs nanoheterostructures

Ishika Ishika, Walid Mohamed Hassen, René St‐Onge, Houman Moteshareie et autres

The reusability of biosensors is a crucial advancement in environmental monitoring and laboratory efficiency.

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Investigating the Activities of CAF20 and ECM32 in the Regulation of PGM2 mRNA Translation

Mustafa Al‐gafari, Sasi Kumar Jagadeesan, Thomas David Daniel Kazmirchuk, Sarah Takallou et autres

Translation is a fundamental process in biology, and understanding its mechanisms is crucial to comprehending cellular functions and diseases. The regulation of this process is closely linked to the structure of mRNA, as these regions prove vital to modulating translation efficiency and …

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Survival and virulence of Acinetobacter baumannii in microbial mixtures

Azam F. Tayabali, Yasmine Dirieh, Emma Groulx, Nusaybah Elfarawi et autres

Acinetobacter species such as A. venetianus and A. guillouiae have been studied for various biotechnology applications, including bioremediation of recalcitrant and harmful environmental contaminants, as well as bioengineering of enzymes and diagnostic materials. Bacteria used in biotechnology are often combined with other …

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