Former collaborators

Monika Mortimer

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Dr Monika Mortimer

Former SCIEX researcher - Research Scientist at UC CEIN, University of California, Santa Barbara (USA) - Protozoa, nanoparticles, ecotoxicity


RESEARCH INTEREST

Interactions of engineered nanoparticles with biological systems: determining the potential harmful effects of nanoparticles, including oxidative stress, modification of membrane permeability, influence on energetic metabolism, at cellular, organelle, and organism levels.

EDUCATION

2011 PhD in Chemistry and Gene Technology, Tallinn University of Technology, Estonia.
Evaluation of the Biological Effects of Engineered Nanoparticles on Unicellular Pro- and Eukaryotic Organisms.
2006 Master of Science in Natural Sciences, Tallinn University of Technology, Estonia.
Catalytic Activity and Oxygenation Specificity of 11R-lipoxygenase.
2004 Bachelor of Science in Natural Sciences, Tallinn University of Technology, Estonia

PROFESSIONAL EXPERIENCE

2007 – 2012 Research scientist, Laboratory of Molecular Genetics, National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
2006 – 2007 Engineer, Laboratory of Molecular Genetics, National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
2002 – 2006 Technician, Department of Chemistry, Faculty of Science, Tallinn University of Technology, Estonia

ADMINISTRATIVE RESPONSIBILITIES

2010 – 2012 Secretary of Estonian Society of Toxicology
2007 - today Member of Estonian Society of Toxicology
  Reviewer for Journal of Hazardous Materials, Environmental Science and Technology, Aquatic Toxicology, Environmental Toxicology.

PUBLICATIONS

  1. Mortimer, M.; Kasemets, K.; Heinlaan, M.; Kurvet, I.; Kahru, A. (2008). High throughput kinetic Vibrio fischeri bioluminescence inhibition assay for study of toxic effects of nanoparticles. Toxicology in Vitro 22, 1412 - 1417. ( doi: 10.1016/j.tiv.2008.02.011)
  2. Mortimer, M.; Jarving, R.; Brash, AR.; Samel, N.; Jarving, I. (2006). Identification and characterization of an arachidonate 11R-lipoxygenase. Archives of Biochemistry and Biophysics 445, 147 -155. ( doi: 10.1016/j.abb.2005.10.023 )

CONFERENCE PRESENTATIONS

  1. Mortimer, M.; Juganson, K.; Kasemets, K.; Kahru, A. Nanosized CuO changes the fatty acid composition of protozoan membranes. International Conference on Biological Responses to Nanoscale Particles, University of Duisburg-Essen, Essen, Germany, September 11 – 15, 2011.
  2. Mortimer, M.; Vodovnik, M.; Marinšek Logar, R.; Kahru, A. Effects of copper oxide nanoparticles on cell membrane fatty acid composition of protozoa Tetrahymena thermophila. In: Abstract book: Nanotoxicology 2010, Edinburgh, June 2-4, 110.
  3. Mortimer, M.; Kasemets, K.; Kahru, A. Ciliated protozoa Tetrahymena thermophila - a particle-ingesting model organism for nanotoxicological studies. 4th International Conference "Environmental Effects of Nanoparticles and Nanomaterials", Vienna, Austria, Sept. 6-9, 2009.
  4. Mortimer, M.; Kasemets, K.; Kahru, A. Toxicity of ZnO and CuO nanoparticles to ciliated protozoa Tetrahymena thermophila. International Conference on the Environmental Implications and Applications of Nanotechnology, University of Massachusetts, Amherst, USA, June 9-11, 2009, 41.
  5. Mortimer, M.; Blinova, I.; Kasemets, K.; Kahru, A. Toxicity of metal oxide and organic (nano)particles to ciliated protozoa Tetrahymena thermophila. 15th International Congress on In Vitro Toxicology, Stockholm, Sweden, Sept. 25-28, 2008.
  6. Mortimer, M.; Kasemets, K.; Kurvet, I.; Heinlaan, M.; Kahru, A. Kinetic bioluminescence inhibition assay for study of toxic effects of colored and/or turbid samples and nanoparticles: microplate versus tube luminometer formats. 25th Workshop of the Scandinavian Society for Cell Toxicology, Salzau, Germany, Sept. 19 - 22, 2007, 41 – 41.

Publications

Juganson, K.; Mortimer, M.; Ivask, A.; Kasemets, K.; Kahru, A. Extracellular conversion of silver ions into silver nanoparticles by the ciliated protozoan Tetrahymena thermophila. Journal of Environmental Monitoring (submitted).


Former collaborators