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Dr. Raul E. Martinez

 

Institut für Geo- und Umweltnaturwissenschaften                                                       
Mineralogie-Petrologie
Albert-Ludwigs-Universität
Albertstraße 23b 
79104 Freiburg, Germany                                                                                  

Fon:  0761 / 203 6423 direkt
Fon:  0761 / 203 6396 Sekretariat
Fax:  0761 / 203 6407

Raul.Martinez@minpet.uni-freiburg.de

 

 

Objective:

Faculty position for teaching and research in the field of Biogeochemistry/Aqueous Geochemistry.

 

Education: 

Ph. D. Biogeochemistry/Aqueous Geochemistry, Department of Geology, University of Toronto, Canada. Degree Conferred March 2004. Dissertation: “Chemical Heterogeneity of Proton and Metal Complexation by Bacterial Cell and Bacteriogenic Iron Oxide Surfaces”. Advisor: Dr. F. Grant Ferris. 

B. Sc. Honours Physical Sciences, McMaster University, Hamilton, Ontario, Canada, 1999.

 

Awards/Research Funding:

2013 Fakultät für Umwelt und Natürlicher Ressourcen, Universität Freiburg – Investitionsmitteln – value of award: 4400 Euro.

2013 Innovationsfonds Forschung Universität Freiburg Research Grant for project: “Quantification of carbonate biomineral formation by cyanobacteria” –value of award: 18,000 Euro.

2012 – 2013 Deutscher Akademischer Austausch Dienst (DAAD)/Conacyt Scholarship for MSc student research assistant – Approximate value of award: 11,000 Euro.

2009 – 2010 Alexander von Humboldt Fundation Research Fellowship for Experienced Researchers (Approx. value of Award: 65,000 Euro)

2003   Griffis Scholarship Doctorate Award, Geology Department University of Toronto. Value of Award: $CAD 2000.

 

 

Employment

2011 – Present Assistant Professor for Biogeochemistry and Aqueous Geochemistry (German C1 position), Institut für Geochemie, Mineralogie und Petrologie, Albert Ludwigs Universität Freiburg, Germany.

2008 – 2011 Alexander von Humboldt Foundation Research Associate, Zentrum für Angewandte Geowissenschaften (ZAG), Eberhard Karls Universität Tübingen, Germany. Study of the mechanisms of iron plaque formation and arsenic and cadmium co-precipitation in rice paddy soils.

2006 – 2008 Postdoctoral Fellow, Laboratoire des Mécanismes et Transferts en Géologie (LMTG-CNRS)/IPGP-Paris, France. Kinetic, thermodynamic, and spectroscopic characterization of cyanobacteria biomineralization of carbonate minerals.

2005 – 2006 Postdoctoral Fellow, Geosciences Rennes, Université de Rennes, France. Investigation of the lanthanide metal surface complexation by natural colloids and cyanobacterial cells.

2004 – 2005 Postdoctoral Fellow, Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada. Research in Metal Toxicology: Effects of Cd2+ on kidney programmed cell death.

2000 – 2004 Graduate Student, Department of Geology, University of Toronto, Canada. Experimental and theoretical study of the surface metal binding properties of intact bacteria and bacteriogenic iron oxides.

1999 – 2000 Research Assistant, Departments of Medicine and Chemistry, McMaster University, Hamilton, Ontario, Canada. Development of Hg microsensors for probing of dissolved metal cations in aquatic systems. Study of the speciation of cadmium, iron and organic ligands in physiological systems.

1998   Summer Research Assistant, Department of Chemistry, McMaster University, Hamilton, Ontario, Canada. Study of Pb and Cd partitioning in lake sediments. Improvement of custom made particle size analyzer.

1997 Research Assistant, Departments of Chemistry and Biology, McMaster University, Hamilton, Ontario, Canada. Testing the effects of a newly synthesized β-lactone antibiotic on the growth of Candida albicans and Neurospora crassa.

1995/1996  Summer Research Assistant, Department of Biology; McMaster University, Hamilton, Ontario, Canada. Testing of Hamilton-Wentworth Watershed for chemical and microbiological contamination.

 

Publication list:

  

1. Martinez, R. E., S. Weber, K. Bucher (2014). Quantifying the kinetics of olivine dissolution in partially closed and closed batch reactor systems. Chemical Geology, submitted.

2.  M. Eickhoff, M. Obst, C. Schröder, A. Hitchcock, Tolek Tyliszczak, R. E. Martinez, L. J. Robbins, K. O. Konhauser and A. Kappler (2014). Nickel partitioning onto biogenic and abiotic ferrihydrite : the influence of silica and the implications for anci environments. Geochimica et Cosmochimica Acta, submitted.

3.  Martinez, R. E., O. Pourret, Y. Takahashi (2014) Modeling of rare earth element sorption to the Gram positive Bacillus subtilis surface. Journal of Colloid and Interface Science, 413: 106-111.

4.  Martinez, R. E., J. E. Marquez, H. T-B Hoang, Reto Giere (2013). Open-pit coal-mining             effects on rice paddy soil composition and metal bioavailability to Oryza sativa L.             plants in Cam Pha, northeastern Environmental Science and Pollution Research, 20:             7686-7698.

5. Pokrovsky, O. S., Martinez, R. E., Kompantseva, E. I., Shirokova L. S. (2013). Interactions of metals and protons with phototrophic anoxygenic bacteria (Rodoblastika sp.). Chemical Geology, 335: 75-86.

6. Biswas, R., Martinez, R.E., Göhring, N., Schlag, M., Xia, G., Hegler, F., Gekeler, C., Gleske, A.K., Götz, F., Kappler, A., Peschel A. (2012). Role of wall teichoic acid in membrane potential maintenance and control of autolysin activity in Staphylococcus aureus. PLoS One, 7 (7): 1-5.

7. Martinez, R.E., Sharma, P., Kappler, A. (2010). Surface binding site analysis of clay humic acid complexes, Journal of Colloid and Interface Science, 352: 526-534.

8. Gonzalez, A. G., Pokrovsky, O. S., Emnova, E. E., Martinez, R. E., Santana-Casiano, J. M., Gonzalez-Davila, M., Shirokova, L. S., Pokrovski, G. S. (2010). Adsorption of copper on Pseudomonas aureofaciens: protective role of surface exopolysaccharides, Journal of Colloid and Interface Science, 350: 305-314.

9. Pokrovsky, O. S., A. Feurtet-Mazel, R. E. Martinez, S. Morin, M. Baudrimont, A. Boudou (2010). Cd interaction with natural biofilms of peryphytic diatoms: a physicochemical modelling, Applied Geochemistry, 25: 418 – 427.

10. Martinez, R. E., E. Gardés, O. S. Pokrovsky, J. Schott and E. H. Oelkers (2010). Do photosynthetic bacteria have a protective mechanism against carbonate precipitation at their surfaces? Geochimica et Cosmochimica Acta, 74: 1329 – 1337.

11. Pourret O., R. E. Martinez (2009). Modelling lanthanide binding sites on humic acid, Journal of Colloid and Interface Science, 330: 45-50.

12. Pokrovsky O. S., R. E. Martinez, S. V. Golubev, E. I. Kompantseva, L. S. Shirokova (2008). Adsorption of Metals and Protons on Cyanobacteria: a surface speciation approach, Applied Geochemistry, 23, 2574-2588.

13. Martinez, R. E., O. S. Pokrovsky, J. Schott and E. H. Oelkers (2008). Surface Charge and Zeta Potential of Metabolically Active and Dead Cyanobacteria, Journal of Colloid and Interface Science, 323: 317-325.

14. Gunawardana, G., R. E. Martinez and D. M. Templeton (2006). Cadmium effects on the intrinsic and extrinsic pathways of apoptosis, American Journal of Physiology – Renal Physiology, 290 (5): F1074-F1082.

15. Martinez, R. E. and F. Grant Ferris (2005). Review of the Surface Chemical Heterogeneity of Bacteriogenic Iron Oxides: Proton and Cadmium Sorption. American Journal of Science, 305 (6-8): 854-871 Sp. Iss.

16. MacLean, L. C. W., R. E. Martinez and D. A. Fowle (2004). Experimental Studies of Bacteria-Iodide Sorption Interactions, Chemical Geology. 212, 229.

17. Martinez, R. E., K. Pedersen and F. G. Ferris (2004). Cadmium Complexation by Bacteriogenic Iron Oxides from a Subterranean Environment. Journal of Colloid and Interface Science, 275, 82.

18. Martinez, R. E., D. S. Smith, K. Pedersen and F. G. Ferris (2003). Surface Chemical Heterogeneity of Bacteriogenic Iron Oxides from a Subterranean Environment. Environmental Science and Technology. 37, 5671.

19. Kennedy, C. B., R. E. Martinez, S. D. Scott, F. G. Ferris (2003). Surface Reactivity of Bacteriogenic Iron Oxides from Axial Volcano, Juan de Fuca Ridge, North-East Pacific Ocean. Geobiology. 1, 59.

20. Phoenix, V. R., R. E. Martinez, K. O. Konhauser, F. G. Ferris (2002). Characterization and Implications of the Cell Surface Reactivity of Calothrix sp. Strain KC97. Applied and Environmental Microbiology. 68, 4827.

21. Martinez, R. E., D. S. Smith, E. Kulczycki, F. G. Ferris (2002). Determination of Intrinsic Bactrerial Surface Acidity Constants using a Donnan Shell Model and a Continuous pKa Distribution Method. Journal of Colloid and Interface Science. 253, 130.

22. Martinez, R. E., F. G. Ferris (2001). Chemical Equilibrium Modeling Techniques for the Analysis of High Resolution Bacterial Metal Sorption Data. Journal of Colloid and Interface Science. 243, 73.

23. Martinez, R., P. Brassard, J. Mwanjewe, A. K. Grover (2001). Iron Promotes Cadmium Binding to Citrate. Molecular and Cellular Biochemistry. 225, 93.

24. Mwanjewe, J., R. Martinez, P. Agrawal, S. E. Samson, M. D. Coughlin, P. Brassard, A. K. Grover (2000). On the Ca2+ Dependence of Non-transferrin bound Iron Uptake in PC12 Cells. Journal of Biological Chemistry. 275, 33512.

25. J. Au, P. Bagchi, B. Chen, R. Martinez, S. A. Dudley, G. J. Sorger (2000). Methodology for Public Monitoring of Total Coliforms, Escherichia coli, and Toxicity in Waterways by Canadian High School Students. Journal of Environmental Management. 58, 213.

26.  Bae, G., R. F. Io, F. Lee, L. Lukasik, A. MacDougall, R. Martinez, J. Pullen, I. Wheeldon, O. Zaimi, G. J. Sorger (1997). Stream Monitoring and Stewardship Programme Involving a Partnership Between Community Organizations, High Schools and a University. Journal of Lake and Reservoir Management. 13, 246.

 

Invited Presentations

 

1. Martinez, R. E., Trace element contamination of rice paddy soils in the open pit coal mining area of Quang Ninh in NE-Vietnam, Institute Polytheqnique Lasalle-Beauvais, France, October 2012.

2. Martinez, R. E. and J. Eduardo Marquez.  Effects of heavy metal contamination on rice growth rates in the presence of iron (III) hydroxide minerals, Jacobs University Bremen, March 2012.

 

Conference Abstracts:

 

1.  Weber, S., R.E. Martinez (2013). Magnesium carbonate bio-mineral formation in the presence of metabolically active and dead cyanobacteria species: implications for CO2 sequestration . DMG-GV Conference, Tübingen, Germany, September.

2. Martinez, R. E., Pourret, O., Takahashi, Y. (2013). Modeling of rare-earth element soprtion to Bacillus subtilis bacteria. 23rd  V.M. Goldschmidt Conference, Florence, Italy, August.

3. J. Eduardo Marquez, R. E. Martinez, Hoang Thi Bich Hoa, Reto Giere (2013).  Open-pit coal mining effects on rice paddy soil composition and metal bioavailability to Oryza sativa L., plants in Cam-Pha, NE-Vietnam. 23rd V.M. Goldschmidt Conference, Florence, Italy, August.

4. Martinez, R. E., J. Eduardo Marquez, Hoa Thi Bich Hoang, Reto Giere (2012). Trace element mobility and root iron plaque effects on rice growth in a coal mining area of NE-Vietnam, 22nd V.M Goldschmidt Conference, Montreal, Canada, June.

5. Giere, R., Hoa Thi Bich Hoang, R. E. Martinez, Richard Wirth (2012). Schwertmannite formation in acid mine drainage in NE Viet Nam, 22nd V.M Goldschmidt Conference, Montreal, Canada, June.

6. J. Eduardo Marquez, R. E. Martinez (2012). Trace element contamination in the coal mining region of Quang Ninh in NE-Vietnam: effects on rice plant growth. 5th International Symposium in Biosorption and Bioremediation, Prague, Czech Republic, June.

7. Martinez, R. E., A. Kappler (2009). Co-precipitation of cadmium during abiotic and biogenic iron (II) oxidation. 19th V.M. Goldschmidt Conference, Davos, Switzerland, June..

8. Martinez, R.E., O.S. Pokrovsky, J. Schott, E.H. Oelkers (2008). Surface charge and zeta potential of metabolically active and dead cyanobacteria. 18th V.M. Goldschmidt Conference, Vancouver, Canada, July.

9. L.S. Shirokova, O.S. Pokrovsky, J. Schott, E.H. Oelkers, R.E. Martinez, P. Benezeth (2008). Impact of cyanobacteria Gloecapsa sp. on calcium carbonate precipitation rates. 18th V.M. Goldschmidt Conference, Vancouver, Canada, July.

10. R.E. Martinez, O. Pourret (2008). Modelling lanthanide binding sites on humic acid using the Linear Programming Model. 22eme Reunion des Sciences de la Terre, Nancy, France, April.

11. L. S. Shirokova, O. S. Pokrovsky, J. Schott, E. H. Oelkers, R. E. Martinez (2008). Experimental Modeling of CaCO3 precipitation in the presence of phototrophic aerobic and anaerobic bacteria. EGU General Assembly, Vienna, Austria, April.

12. Martinez, R. E. O. S. Pokrovsky, J. Schott, E. H. Oelkers, (2007). Characterization of carbonate mineral formation by cyanobacteria and implications in CO2 sequestration. 17th V. M. Goldschmidt Conference, Cologne, Germany, August.

13. X. Chatellier, Martinez, R. E., D. Fortin, (2007). Important selected questions related to metal complexation onto bacterial cells, 233rd American Chemical Society (ACS) National Meeting, Chicago, IL, March.

14. Martinez, R. E., G. Gunawardana, D. M. Templeton, (2004). Cadmium Inhibition of the Intrinsic and Extrinsic Pathways of Apoptosis. Annual Symposium in Biology, Chemistry and Toxicity of metals. London, Canada, August.

15. Martinez, R. E., K. Pedersen, F. G. Ferris. Cadmium Complexation by Bacteriogenic Iron Oxides from a Subterranean Environment. Geochimica et Cosmochimica Acta, 68 (11): A358-A358, Suppl. 1, June 2004

16. Ferris, F. G., Martinez R. E., Pedersen, K (2004). Surface Chemistry of Bacteriogenic Iron Oxides. 227th National Meeting of the American Chemical Society, Anaheim, CA, United States. March.

17. Kennedy, C. B., Martinez, R. E., Scott, S. D., Ferris, F. G. Surface chemistry and reactivity of bacteriogenic iron oxides from Axial Volcano, Juan de Fuca Ridge, Northeast Pacific Ocean. Geochimica et Cosmochimica Acta 67 (18): A211-A211 Suppl. 1, Sep. 2003

18. Martinez, R. E., Smith, D. S., Pedersen, K., Ferris, F. G. Surface chemical heterogeneity of bacteriogenic iron oxides from a subterranean environment. Geochimica et Cosmochimica Acta 67 (18): A273-A273 Suppl. 1, Sep. 2003

19. Martinez, R. E., D. S. Smith, E. Kulczycki, F. G. Ferris 2003. Determination of Intrinsic Bactrerial Surface Acidity Constants using a Donnan Shell Model and a Continuous pKa Distribution Method. 16th International Symposium on Environmental Biogeochemistry, Oriase, Japan. September.

20. Martinez, R. E., F. G. Ferris. 2002. Chemical Equilibrium Modeling Techniques for the Analysis of High Resolution Bacterial Metal Sorption Data. International Society for Subsurface Microbiology, Copenhagen, Denmark. September.

21. Martinez, R. E., D. S. Smith, L. Hallbeck, K. Pedersen and F. G. Ferris. 2002. Surface Chemical Heterogeneity of Bacteriogenic Iron Oxides from a Subterranean Environment. International Mineralogical Association, Edinburgh, Scotland. September.

22. Phoenix, V. R., R. E. Martinez, K. O. Konhauser, F. G. Ferris. 2002. Characterization and Implications of the Cell Surface Reactivity of Calothrix sp. Strain KC97. International Mineralogical Association, Edinburgh, Scotland. September

23. Martinez, R., P. Brassard, J. Mwanjewe, A. K. Grover. 2000. Iron, Cadmium, Citrate Ternary Interactions. Oxidative Stress Consortium Meeting, Hamilton, Ontario, Canada. May.

24. Mwanjewe, J., R. Martinez, P. Agrawal, S. E. Samson, M. D. Coughlin, P. Brassard, A. K. Grover. 2000. Non-Transferrin Bound Iron uptake in PC12 cells: using conditional stability constants to study Ca-dependence.. Oxidative Stress Consortium Meeting, Hamilton, Ontario, Canada. May.

25. R. Martinez, Mwanjewe, J., P. Agrawal, S. E. Samson, M. D. Coughlin, P. Brassard, A. K. Grover. 2000. Determination of conditional stability constants for Fe2+ - NTA and Ca2+ -NTA to assess iron uptake by modified neuronal tumor cells. Environmental and Engineering Research Conference. Gananoque, Ontario, Canada. March.

 

Non peer-reviewed publications:

 

Marchewka, K., Martinez, R. E., Nahal, H., Sorger, G. 1996. Report on contamination in the Davis Creek watershed and in the effluent of the Woodward sewage treatment plant, Hamilton, ON. Canada. Government Report.

Lee, F., MacDougall, A., Martinez, R. E., Pullen, J., Sorger, G. 1995. Report on contamination entering Chedoke and Red-Hill Creek, Hamilton, ON. Canada. Government Report.

 

Professional Activities:

 

2003/2004:   Co-Principal Investigator: School of Earth and Environment, University of   Leeds, United Kingdom, ESRF (France) and SRS (UK). Study of the            nucleation and growth kinetics of toxic cadmium-iron(II)-citrate high            molecular weight compounds using synchrotron SAXS and FTIR.

2002:  Mineralogical Association of Canada: Short Course in "Synchrotron Radiation: earth, environmental and material sciences applications", University of Saskatchewan, Saskatoon, Canada. May 2002.

 

Reviews manuscripts for internationally recognized journals.

 

Teaching Experience (2011-present)

Undergraduate Level:

BSc (6th semester) course in Aqueous Geochemistry (Uni. Freiburg)

BSc (6th semester) course in Biogeochemical Cycles (Uni. Freiburg)

Graduate Level:

MSc Course in Aqueous Geochemistry (Uni. Freiburg)

MSc Seminar Course in Biogeochemical Weathering (Uni. Freiburg)

 

Practical lectures in Confocal Scanning Laser Microscopy and AAS (Uni. Freiburg)

Field excursions involving water-rock interactions and water chemical analysis, and hydroelectric powerplant operations.

 

Supervision and co-supervision of Postdoctoral Fellows, MSc and BSc theses (Uni. Freiburg)

 

PhD Theses Directed

2013-2014 Christian Grimm: Quantification of the effects of particulate matter on the primary

            productivity of marine microorganisms. Co-supervision with Dr. Eric H. Oelkers, GET-           
CNRS, Toulouse, France. 

 

Master Theses Directed

2014:            Mariela Hernandez: In situ quantification of silicate species in geothermal fluids by            
FTIR spectroscopy.

2013:            Steffen Moser: Quantification of olivine dissolution in flow-through reactors systems in            
presence of cyanobacteria: implications for CO2 sequestration.

2013:   Jorge Eduardo Marquez: Open-pit coal mining effects on rice paddy soils in Cam            
Pha, NE-Vietnam.

2013:  Benedikt Hintersberger: Quantifying the rates of feldspar mineral dissolution in batch           
reactors (co-supervisor)

 

Bachelor of Science Theses Directed

2013: Moritz Schwab – Geological mapping of NW-Kaisersthul area (co-supervisor).

2013: Markus Arnold – Remediation of tyre waste (co-supervisor)

2013: Moritz Gradmann – Bioremediation of uranium contaminated soils (co-supervisor)

2012: Philip Maicher – Carbonate mineral formation by cyanobacteria.

 

Post-Doctoral Scientist Supervised

2013: Sebastian Weber: Quantification of olivine and wollastonite dissolution in            
presence of cyanobacteria biomass: implications for CO2 sequestration.

 

Languages: English, Spanish, French, Working knowledge of German.

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