Stephanie Loeb, Assistant Professor

Department of Civil Engineering, McGill University

Specialization in Environmental Engineering

  • Postdoc, Civil & Environmental Engineering, Stanford University

  • PhD, Chemical & Environmental Engineering, Yale University

  • MASc, Civil Engineering, University of Toronto

  • HBSc, Physics & Nanoscience, University of Toronto & National University of Singapore [Jointly]

Dr. Stephanie Loeb is an Assistant Professor in the Department of Civil Engineering at McGill University. Prior to joining McGill, she was a post-doctoral fellow at Stanford where she studied the sunlight inactivation of human norovirus. She received her PhD from Yale University with a focus on the environmental applications of light-activated and fluorescent nanomaterials. She has a MASc from the University of Toronto in Civil Engineering and completed her bachelors degree in Physics and Nanoscience jointly between UofT and the National University of Singapore. Prof Loeb's research interests encompass materials science and environmental engineering, with particular expertise in the areas of nanotechnology, photonics, and environmental virology. Outside the lab, she likes traveling, swimming, skiing, listening to excessively long history podcasts, and reading science-fiction.

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Saadia Wasim

Saadia is a pursuing a PhD in environmental engineering, co-supervised by Prof. Loeb and Prof. Ghoshal. She is the recipient of a MEDA Award and a Grad Excellence Award. She was born and raised in UAE and completed her B.Sc. in Chemical Engineering (major) and Engineering Management (minor) at American University of Sharjah and M.Eng. (Thesis-based) in Chemical Engineering at McGill University. Her Ph.D. research project is based on designing novel nanomaterials for improving light-mediated chemical and pathogen inactivation. When not involved in research, she enjoys spending her time organizing, cooking, baking, and tutoring.

Fernando Sanchez Quete

Fernando is a research assistant working in the Loeb and Frigon research groups. He has a master of science in virology & immunology From Institut National de la Recherche Scientifique (INRS). He is known for his passion in understanding life dynamics through the biology of viruses. In the last five years, he has been studying both RNA and DNA viruses by using several approaches and techniques in cell and molecular biology. His current work in the Loeb group focuses on understanding light based disinfection mechanisms, predicting the virus persistence, and detection of important viral pathogens in the environment.


Xuan Wu

Xuan is a research assistant working on the wastewater SARS-CoV-2 surveillance project, which provides additional information to McGill residence and helps with the early identification of possible outbreaks in the community. Xuan recently completed a master's in Civil Engineering at McGill where she studied anaerobic digestion of ozonated sludge. She is interested in many topics within the field of environmental engineering, with extra focus on wastewater treatment and biosolids management. Xuan is a guitar player and a fan of classical music. And as a food lover, she is willing to try delicacies all over the world.

Ling Han

Ling is a research assistant currently working on the wastewater COVID project which detects SARS-CoV-2 and monitors the concentrations in wastewater at McGill Residences. Ling works on daily sampling, RNA extraction, and RT-qPCR experiment. Ling has a master’s degree in the Bioresources Engineering Department at McGill where she studied a variety of concepts in environmental engineering including wastewater treatments, remediations, ecotoxicology, systems analysis, water management, and environmental policy. She has a BScE in Bioenvironmental Systems from National Taiwan University. Recently, Ling is into winter activities like ice skating and practices for it during her leisure time.

Alexandra Tsitouras

Dr. Alexandra Tsitouras is a Postdoctoral Research Fellow in the Department of Civil Engineering, working jointly with Prof. Dominic Frigon and Prof. Stephanie Loeb. She is currently studying wastewater-based epidemiology, with a focus on sequencing analysis of variant lineages of SARS-CoV-2. During her PhD, Alexandra studied the design, morphology, and microbiome of biofilm wastewater treatment systems treating carbon and nutrients from cheese production wastewater. Alexandra’s research interests include applying omics techniques to better understand and allow for improved designs of engineered biological systems. Overall, she aims to bridge the gap between academia and industry by building fundamental knowledge to be used to develop sustainable technologies. Outside of research Alexandra enjoys figure skating, ballet, travelling, trying new things, and meeting new people.

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Gabriel Coluni

Gabriel is a third-year undergraduate student studying in Civil Engineering at McGill University. He works in the lab as a SURE Summer research students and as part of a CIVE470 undergraduate research project. His research interests are related to the built and aquatic environment, with a specific interest in photoinactivation and detection of viral pathogens. He is currently working on a systematic review and meta-analysis of sunlight inactivation of viral pathogens. He also worked on the detection of SARS-CoV-2 variants in the wastewater of Quebec. Outside of research, you will most likely see Gabriel being active either playing soccer or going kayaking in the Lac-St-Louis.

Greyson He

Greyson is an undergraduate student in the Department of Civil Engineering at McGill University with a minor in Management. He works in the lab as a SURE Summer research students and as part of a CIVE470 undergraduate research project. He is interested in research on aquatic environments, with a keen interest in nanomaterials-aided and light-mediated pathogenic inactivation. He is currently working on developing techniques for the synthesis of novel solar activated plasmonic materials for environmental remediation. He worked on SARS-CoV-2 variants detection in Quebec wastewater. Native to Shanghai, he is a world traveler who can often be found hiking in nature and jogging in the City of Montreal.