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Dr. Ricki Rosenfeldt

Aquatic Stress Ecology
Postdoctoral Researcher
Contact
Building C I; Room 08A
Homepage:

Research Interests

  • Aquatic ecotoxicology
  • Engineered nanoparticles
  • Heavy metals

Current Research Projects

  • PHOTOPUR - Photocatalytic purification of pesticide contaminated water from viticulture
  • Engineered inorganic nanoparticles transformed by environmental processes: Biological effects on aquatic invertebrates (IMPACT)” as part of the research group “INTERNANO; Mobility, aging and functioning of engineered inorganic nanoparticles at the aquatic-terrestrial interface“; funded by German Research Foundation

Academic History

  • Since 2015: Research assistant at the Institute for Environmental Sciences University for Koblenz-Landau, Germany
  • 2015: PhD thesis at the Institute for Environmental Sciences, University of Koblenz-Landau, Germany (Thesis: Combined toxicity of nanoparticulate titanium dioxide products and heavy metals considering various environmental parameters.).
  • 2011: M.Sc. (Ecotoxicology) at the Institute for Environmental Sciences, University of Koblenz-Landau, Germany (Thesis: Do TiO2 nanoparticles alter heavy metal toxicity? – A factorial approach using Daphnia magna)
  • 2010: B.Sc. (Env.Sci.) at the Institute forEnvironmental Sciences, University of Koblenz-Landau, Germany (Thesis: Effect of titanium dioxide nanoparticles (nTiO2) on lipid content, as energy reserve, in Daphnia magna)

Memberships

  • Society of Environmental Toxicology and Chemistry (SETAC)
  • European Cooperation in Science and Technology COST - The transfer of engineered nanomaterials from wastewater treatment & stormwater to rivers (ENTER) more information

Publications

See here for a complete list of my publications:

Oral Presentations

  • Seitz F., Lüderwald S., Rosenfeldt R. R., Müller M., Schulz R., Bundschuh M., 2015. Quantity and quality of natural organic matter trigger the ecotoxicity of titanium dioxide nanoparticles to Daphnia magna, SETAC Europe, Barcelona, Spain.
  • Rosenfeldt R. R., Seitz F., Zubrod J. P., Feckler F., Lüderwald S., Merkel T., Bundschuh R., Schulz R., Bundschuh M., 2015. Nanosized titanium dioxide mitigates copper toxicity, SETAC Europe, Barcelona, Spain.
  • Zubrod J. P., Wolfram, J., Englert, D., Bundschuh, R., Rosenfeldt, R. R., Seitz F., Schulz, R., Bundschuh, M., 2015. Long-term effects of inorganic and synthetic fungicides on leaf-associated microorganisms and leaf-shredding macroinvertebrates ‒ an artificial stream study, SETAC Europe, Barcelona, Spain.
  • Schulz R., Bundschuh M., Rosenfeldt R. R., Seitz F., 2015. Aquatic ecotoxicology of nanomaterials, NanoVision, Stuttgart, Germany.
  • Seitz F., Rosenfeldt R. R., Schneider S., Schulz R., Bundschuh M., 2014. Particle characteristic dependent effects of titanium dioxide nanoparticles on Daphnia magna and Gammarus fossarum. 24th Annual Meeting SETAC Europe, Basel, Switzerland.
  • Feckler A., Rosenfeldt R. R., Seitz F., Schulz R., Bundschuh M., 2014. Habitat selection of a leaf shredding amphipod affected by photocatalytic properties of nTiO2. 24th Annual Meeting SETAC Europe, Basel, Switzerland.
  • Seitz F., Rosenfeldt R. R., Schneider S., Schulz R., Bundschuh M., 2014. Particle characteristic related effects of titanium dioxide nanoparticles on Daphnia magna and Gammarus fossarum, International Workshop - Nanoparticles in Soils and Waters: Fate, Transport and Effects, Landau, Germany.
  • Rosenfeldt R. R., Seitz F., Höger J., Haigis A.-C., Schulz R., and Bundschuh M., 2014. Factors triggering the combined toxicity of nanosized titanium dioxide and heavy metals, International Workshop - Nanoparticles in Soils and Waters: Fate, Transport and Effects, Landau, Germany.
  • Bundschuh M., Seitz F., Rosenfeldt R. R. [presenting author], Schulz R., 2013. Titanium dioxide nanoparticles increase sensitivity in the next generation of the water flea Daphnia magna. SETAC Europe 23rd Annual Meeting, Glasgow, Scotland, UK.
  • Seitz F., Rosenfeldt R.R., Storm, K., Schulz R., Bundschuh M. 2013. Environmental conditions alter the ecotoxicity of silver nanoparticles to Daphnia magna. SETAC Europe 23rd Annual Meeting, Glasgow, Scotland, UK.
  • Seitz F., Rosenfeldt R. R., Schneider S., Schulz. R., Bundschuh M., 2013. Product and size specific ecotoxicity of titanium dioxide nanoparticles to Daphnia magna. 3rd SETAC Young environmental scientists meeting, Krakow, Poland.
  • Rosenfeldt R.R., Bundschuh M., Seitz F., Schulz R., 2012. Environmental parameters influence the combined toxicity of TiO2 nanoparticles and heavy metals: A factorial approach using Daphnia magna. 7th International Conference on the Environmental Effects of Nanoparticles and Nanomaterials, Banff, Canada.
  • Rosenfeldt R.R., Bundschuh M., Seitz F., Schulz R., 2011. Do TiO2 nanoparticles alter heavy metal toxicity? – A factorial approach using Daphnia magna. SETAC GLB 16th Annual Meeting, Landau, Germany.
  • Seitz F., Bundschuh M., Rosenfeldt R.R., Schulz R., 2011. Chronische Effekte von TiO2-Nanopartikeln auf Daphnia magna: Durchfluss- und semistatisches Testsystem im Vergleich. SETAC GLB 16th Annual Meeting, Landau, Germany.
  • Schulz R., Bundschuh M., Seitz F., Rosenfeldt R.R., 2011. Ökotoxizität anorganischer Nanopartikel auf aquatische Organismen – Studien unter Verwendung von nTiO2. Nanotechnologie und Wasserwirtschaft, Düsseldorf, Germany.

Poster presentations

  • Lüderwald S., Seitz F., Rosenfeldt R. R., Schulz R., Bundschuh M, 2015. influence of condition specific aging on nanoparticle toxicity ‒ the role of time, SETAC Europe, Barcelona, Spain.
  • Metreveli G., Frombold B., Seitz F., Grün A., Phillipe A., Rosenfeldt R. R., Bundschuh M., Schulz R., Manz W., Schaumann G. E., 2015. Aggregation dynamics of silver nanoparticles in ecotoxicological test media, SETAC Europe, Barcelona, Spain.
  • Schell T., Rosenfeldt R. R., Seitz F., Schulz R., Bundschuh M., 2015. Influence of differing nTiO2 concentrations on copper toxicity for Daphnia magna, SETAC Europe, Barcelona, Spain.
  • Steinmetz Z., Metreveli G., Vogel H.-J., Bundschuh M., Manz W., Baumann T., Schulz R., Lang F., Klitzke S., Seitz F., Rosenfeldt R. R., Schaumann G. E., 2015. A floodplain mesocosm system linking fate and effects of engineered nanoparticles at the aquatic-terrestrial interface, SETAC Europe, Barcelona, Spain.
  • Seitz F., Lüderwald S., Rosenfeldt R. R., Schulz R., Bundschuh M, 2015. Aging of nanoparticles modifies the toxicity to aquatic organisms, NanoVision, Stuttgart, Germany.
  • Rosenfeldt R. R., Seitz F., Schulz R., Bundschuh M, 2015. Do titanium dioxide nanoparticles reduce heavy metal toxicity, NanoVision, Stuttgart, Germany.
  • Rosenfeldt R. R., Seitz F., Bundschuh M, Schulz R, 2015. Ecotoxicological assessment of nanoparticles and more, NanoVision, Stuttgart, Germany.
  • Seitz F., Rosenfeldt R. R., Schneider S., Schulz R., Bundschuh M., 2014. Particle characteristic dependent effects of titanium dioxide nanoparticles on Daphnia magna and Gammarus fossarum. 24th Annual Meeting SETAC Europe, Basel, Switzerland.
  • Rosenfeldt R. R., Seitz F., Höger J, Haigis A-C, Schulz R., Bundschuh M., 2014. Factors triggering the combined toxicity of nanosized titanium dioxide and heavy metals. [poster spotlight] 24th Annual Meeting SETAC Europe, Basel, Switzerland.
  • Lüderwald S., Seitz F., Rosenfeldt R. R., Schulz R., Bundschuh M., 2014. Acute and chronic toxicity of aged titanium dioxide nanoparticles on Daphnia magna, International Workshop - Nanoparticles in Soils and Waters: Fate, Transport and Effects, Landau, Germany.
  • Schell T., Rosenfeldt R. R., Seitz F., Schulz R., Bundschuh M., 2014. Implications of low titanium dioxide nanoparticle concentrations on the ecotoxicological potential of copper for Daphnia magna, International Workshop - Nanoparticles in Soils and Waters: Fate, Transport and Effects, Landau, Germany.
  • Seitz F., Rosenfeldt R. R., Storm K., Schulz. R., Bundschuh M., 2013. Varying environmental conditions alter the ecotoxicity of silver nanoparticles (nAg) to Daphnia magna. 8th International Conference on the Environmental Effects of Nanoparticles and Nanomaterials, Aix-en-Provence, France.
  • Rosenfeldt R. R., Seitz F., Schulz R. and Bundschuh M., 2013. Factors triggering the mixture toxicity of nanosized titanium dioxide and heavy metals. 8th International Conference on the Environmental Effects of Nanoparticles and Nanomaterials, Aix-en-Provence, France.
  • Rosenfeldt R.R., Seitz F., Schmuecking K., Schulz R., Bundschuh M., 2013. Time of aging as an important factor triggering the combined toxicity of titanium dioxide nanoparticles and heavy metals. SETAC Europe 23rd Annual Meeting, Glasgow, Scotland, UK.
  • Rosenfeldt R. R., Seitz F., Ehlert A., Schulz R. and Bundschuh M., 2013. The influence of natural organic matter on the combined toxicity of nanosized titanium dioxide and heavy metals. 3rd SETAC Young environmental scientists meeting, Krakow, Poland.
  • Seitz F., Rosenfeldt R.R., Schneider S., Schulz R., Bundschuh M., 2012. Product- and size-specific toxicity of titanium dioxide nanoparticles to the water flea Daphnia magna. 7th International Conference on the Environmental Effects of Nanoparticles and Nanomaterials, Banff, Canada.
  • Seitz F., Bundschuh M., Rosenfeldt R.R., Schulz R., 2012. Do titanium dioxide nanoparticles induce adverse effects in the reproduction of Daphnia magna? SETAC World, Berlin, Germany.
  • Rosenfeldt R.R., Bundschuh M., Seitz F., Schulz, R., 2012. Do TiO2 nanoparticles alter heavy metal toxicity? – A factorial approach using Daphnia magna. [poster corner] 6th SETAC World Congress/ SETAC Europe 22nd Annual Meeting, Berlin, Germany.
  • Rosenfeldt R.R., Seitz F., Dabrunz A., Schulz, R., 2011. Establishment of an improved lipid determination method for Daphnia magna and its value in acute nanoparticle toxicity tests. 2nd SETAC Young environmental scientists meeting, Aachen, Germany.

Enterpreneurship

    Proposals for theses

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