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Susana Y. Kimura-Hara, Ph.D.

Associate Professor, Department of Chemistry


Dr. Susana Y. Kimura-Hara joined the Department of Chemistry at the University of Calgary  in July 2017. Additionally, Susana is a Tier 2 chairholder of the CRC in Analytical and Aquatic Chemistry. Prior to joining University of Calgary, Susana was a postdoctoral fellow for two and half years in the Department of Chemistry and Biochemistry at the University of South Carolina and a postdoctoral research fellow for one year at the University of Illinois at Urbana-Champaign. Susana obtained her M.S. and Ph.D. in Environmental Engineering from University of Illinois at Urbana-Champaign and B.Eng. in Industrial Engineering from CETYS Universidad in Mexico.

Courses:  CHEM 321         Environmental Chemistry 

                 CHEM 697        Water Chemistry


Dr Tatek Temesgen Terfasa


Post Doctoral Associate

Dr. Tatek Temesgen is a Postdoctoral Associate at University of Calgary. He completed his Ph.D. in Environmental Engineering from Seoul National University. His educational background is in Chemical Engineering. His specialization and research interests are mainly in water & wastewater, bubble technology, Energy, Environment, and Sustainability. Currently, he is working on design of energy efficient nanobubble (NB) generator and characterization techniques. The NB generator is intended to be tested in different technologies including water/wastewater treatment (aeration, aerobic digestion and O3 disinfection), fuel efficiency and CO2 sequestration fields.

Dr Sunaina

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Post Doctoral Associate

Dr. Sunaina is a Postdoctoral Associate at University of Calgary. She joined the group in October, 2022. She completed her Ph.D. in from Panjab University and Institute of Nano Science and Technology, India. Her current project is focused on “Generation and Characterization of Nanobubbles”. The generated NBs are planned to be used for waste water treatment. She also has research experience on designing of Type II metal oxide-metal chalcogenide heterostructures for photo-detection and photocatalytic applications. She enjoys her free time in playing badminton, drawings or travelling.

Thilina Jayawardana


Research Associate

Thilina joined Kimura-Hara group in May 2018 and graduated with her PhD in December 2023. She has a B.Sc. special degree in Applied Biology with Chemistry and Computer Science studies. Currently she is analyzing toxicity of haloacetonitrile, an unregulated class of DBPs, to a non-cancerous human cell line and investigate intra and extra cellular metabolites of haloacetonitrile treated cells. Besides doing research, she loves teaching and volunteering. Since 2020, she is closely working with UC CIDE (University of Calgary Chemists for Inclusivity, Diversity and Equity), a student organization. When she is not at University, she likes to try new recipes and cycling.  

Jeas Grejoy Andrews


Research Associate

Jeas joined the Kimura-Hara lab in September 2020 and graduated with a MSc in September 2023. He holds a bachelor’s degree in chemical engineering from Mahatma Gandhi University, Kerala, India. His research work is on the development of acoustic and other gas-quantifying techniques to characterize nanobubbles. Furthermore, his research focuses on the development of a nanobubble generator with external electric fields. Apart from his research, he likes to watch movies, listen to music etc.

Jorge Alberto Perez Perez



Jorge joined the Kimura-Hara group as a MSc student in January 2021 and graduated in December 2023. He has an undergraduate background in nanotechnology and molecular engineering. His research interest is based in the combination of analytical chemistry, nanotechnology and environmental science to be able to help in the solution of problems such as water scarcity and climate change. He worked during his undergrad studying 2D carbon-based nanomaterials generation based on simple precursors. During his free time likes to learn about movies, music, architecture and art. He's currently learning French and admires Nery Oxman and Taylor Swift.

Kumudu Rathnayake


M.Sc. Student

Kumudu joined the Kimura Hara group in September 2022. She studied at the University of Kelaniya, Sri Lanka, and has a B.Sc Honors degree in Chemistry. During her undergraduate studies, she synthesized a tea waste-derived activated carbon polyacrylamide composite to remove heavy metals from wastewater. Currently, she is identifying the disinfection byproducts (DBPs) from the bromination and iodination of model organic compounds. Drawing is her favorite leisure time activity and has an interest in fashion designing

Julia Stroud


M.Sc. Student

Julia joined the Kimura-Hara Group as a M.Sc. Student in late August 2023. She has an undergraduate-research background in NMR Spectroscopy-based metabolomics as well as aquatic toxicology, and she received a B.Sc. Biochemistry in April 2023 through the University of Lethbridge. Currently, she is working to elucidate the mechanisms behind the formation of nitrogenous disinfection by-products (N-DBPs) through chlorination and bromination of nitrogenous bases. Her general research interests surround environmental sustainability. During her free time, Julia enjoys listening to music, watching youtube, and learning different languages

Chalisa James


M. Sc. Student

Details-coming soon


Tran Nguyen

Undergraduate Student

Details-coming soon


Research Staff

  • Jill Murakami, PhD. (May 2018-Jan 2021)

  • Kyle Lee, BS. (May 2020- Aug 2021)

Graduate Research Students

  • Jorge Pérez Pérez, MSc (Jan 2021 - Dec 2023)

  • Thilina Jayawardana, PhD  (May 2018 - Dec 2023)

  • Jeas Andrew Grejoy, MSc (Sep 2020 - Aug 2023)

  • Md Fahim Hossain, MSc (Sep 2019 -Dec 2022)

  • Chad Verwold, MSc  (Sep 2018 - Aug 2021)

  • Alejandro Ortega-Hernandez, MSc  (Sep 2017-Dec 2020)

  • Raphael Acayaba (Jan-Jun 2019)

    • Visiting from The University of Campinas, UNICAMP (Brazil)


Undergraduate Research Students

  • Nefertari Aguilar (May-Jul 2023)

    • MITACS Intern, Visiting from Instituto Técnologico de Celaya (México)​

  • Sydney Parisien (Jan- Aug 2023)

    • NSERC ​Undergraduate Student Research Award 2023​

  • Frederick Van den Brande (Jan- June 2023)

    • Visiting researcher from Belgium (Odisee)

  • Jasjeet Gill (June-Dec 2022)

  • Andrea Rodríguez Garza (July-Oct 2022)

    • MITACS Intern, Visiting from Instituto Tecnológico y de Estudios Superiores de Monterrey (Mexico)

  • Jessy Tseng (May 2020-Aug 2022)

    • NSERC Undergraduate Student Research Awards in 2020 and 2021)​

  • Dhruvin Patel (June-Dec 2021)

  • Chris Tremblay (Sep 2019-Apr 2020)

  • Amy Fahlman (Sep 2019-Apr 2020 and May-Aug 2019)

  • Jorge Alberto Perez (May-Aug 2019)

    • MITACS Intern, Visiting from The Universidad de las Americas Puebla, UDLAP (Mexico)

  • Miriam Patron (Apr-Jul 2019)

    • Visiting from ​The University of Duisburg-Essen (Germany)

  • Matthew Eeles (May-Jun 2019)

  • Tao Siyuan (Jan-Jun 2019)

    • Visiting from The China University of Petroleum (East China)​

  • Kyle Lee (Jan-Apr 2019)

  • Olga Titica (Jan-Apr 2019)

  • Matthew Biscope (May-Aug 2018)

  • Francesca Retuta (May-Aug 2018)

  • Zongying Hu (Jan-Jun 2018)

    • Visiting from The China University of Petroleum (East China)​

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