CLARA CHAN. 217 Watson, MS 52 Woods Hole, MA (508)

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1 CLARA CHAN Woods Hole Oceanographic Institution 217 Watson, MS 52 Woods Hole, MA (508) Education Ph. D. University of California, Berkeley Earth and Planetary Science, 2006 Geomicrobiology of iron-oxidizing microbes Principal Advisor: Jill Banfield M. S. Stanford University Civil and Environmental Engineering, 1998 B. S. Stanford University Geological and Environmental Sciences, 1997 Research Interests Geomicrobiology, biomineralization, biofilms, bioremediation, biomarkers, nano- and environmental mineralogy, environmental geochemistry Honors and Awards National Science Foundation Ridge 2000 Postdoctoral Fellowship 2006 Outstanding Graduate Student Instructor, for Introduction to Oceans, University of 2004 California, Berkeley National Defense Science and Engineering Graduate Fellowship National Science Foundation Graduate Fellowship (declined) 2001 University Fellowship, University of Wisconsin Field Studies Scholarship, Stanford University 1995 Research Experience Postdoctoral Fellow 2006-present Woods Hole Oceanographic Institution Studying the mineralogy, ultrastructure, genomics, and biochemistry of the marine iron-oxidizing microbes. Methods include high resolution transmission electron microscopy and scanning transmission x-ray microscopy. PI: Katrina Edwards Research Assistant Banfield Geomicrobiology Group, University of California, Berkeley ( ), University of Wisconsin, Madison ( ) Investigated the microbial ecology and mineralogy of neutrophilic iron-oxidizers in iron springs and a flooded mine. Determined the role of microbial polymers in biomineral nucleation and growth. Studied iron-oxidizing proteins and ultrastructure of acid mine drainage biofilms.

2 Clara Chan CV, page 2 of 5 Laboratory Assistant Molecular Organic Geochemistry Laboratory, Stanford University Planned and implemented research project on anaerobic biodegradation of oils. Prepared samples for gas chromatography and mass spectrometry analysis by methods including extraction of organic matter from shales, short-column chromatography, and high performance liquid chromatography. PI: M. Moldowan Physical Science Technician 1997 United States Geological Survey, Menlo Park, CA Created 3-dimensional geologic maps and models using ARC/INFO and EarthVision (Dynamic Graphics) software. PI: D. Howell Laboratory Assistant 1994, 1996 Theoretical Geochemistry Laboratory, Stanford University Used petrographic techniques and GIS to study the geology of Eastern Greenland. PI: D. K. Bird Teaching Experience Graduate Student Instructor Earth and Planetary Science, University of California, Berkeley Minerals: Their Constituents and Origins Introduction to Oceans Designed exercises for a new environmental mineralogy laboratory section, graded assignments, led laboratory sections and review sessions, and delivered a lecture in each course. Teaching Assistant Civil and Environmental Engineering, Geological and Environmental Sciences, Stanford University Environmental Science and Technology Physical Geology Led review sessions, laboratories, and field trips. Computer Skills Instructor Computer Science, Stanford University Introduction to the Macintosh Introduced students to basic Macintosh use through lectures and demonstrations Consulting Experience Geologist and Environmental Engineer CDM, Walnut Creek, CA Conducted soil and groundwater investigations and remediation. Advised engineers on geochemical aspects of in situ remedial technologies such as bioremediation and chemical oxidation. Publications Journal Articles Chan, C. S., de Stasio, G., Welch, S. A., Girasole, M., Frazer, B., Nesterova, M., Fakra, S. and Banfield, J. F. Microbial polysaccharides template assembly of nanocrystal fibers. Science, 303: (2004). Banfield, J. F., Moreau, J. W., Chan, C. S., Welch, S. A. & Little, B. Mineralogical biosignatures and the search for life on Mars. Astrobiology, 1: (2001).

3 Clara Chan CV, page 3 of 5 Papers submitted Chan, C. S. and Banfield, J. F. Geomicrobiology of iron oxyhydroxide-depositing microbial mats in a circumneutral ph terrestrial environment. Appl. Environ. Microbiol. (under revision) Chan, C. S., Fakra, S., Edwards, D. C., Emerson, D. and Banfield, J. F. Iron oxyhydroxide mineralization on microbial polymers. Geochim. Cosmochim. Acta (under revision) Emerson, D., Rentz, J. A., Lilburn, T. G., Davis, R. E., Aldrich, H., Chan, C. S., Moyer, C. L. A novel lineage of proteobacteria involved in formation of marine Fe-oxidizing microbial mat communities. PLoS One (under revision) Manuscripts in preparation Chan, C. S., Emerson D. and Edwards K. J. Ultrastructure and mineralogy of Mariprofundus ferrooxydans, a marine iron-oxidizing microbe. Jeans, C., Singer, S. W., Chan, C. S., VerBerkmoes., N. C., Hettich, R. L., Banfield, J. F., and Thelen, M. P. Cytochrome 572, a novel iron oxidase isolated from an acidophilic microbial community. Selected Abstracts Invited presentations Chan, C. S Biomineralization of marine and terrestrial iron-oxidizing microbes. Pacific Northwest National Laboratory, November 17, invited talk. Chan, C. S How microbes become microfossils: a story of iron-oxidizing bacteria. University of Vermont Department of Geology seminar, October 16, invited talk. Chan, C. S., Thelen, M., Hwang, M., and Banfield, J. F Characterization and localization of iron-oxidizing proteins in acid mine drainage biofilms. American Geophysical Union Fall 2005 meeting, invited talk. Chan, C. S., Fakra, S., De Stasio, G., and Banfield, J. F Molecular mechanisms of iron oxyhydroxide biomineralization. American Geophysical Union Fall 2003 meeting, invited talk. Chan, C. S., Nesterova, M., Welch, S. A., De Stasio, G., and Banfield, J. F Microbial polymer templation of iron oxyhdyroxides. Stanford Synchrotron Radiation Laboratory users meeting 2003, invited talk. Other presentations Chan, C. S., Emerson, D., and Edwards, K. J Biomineralogy and morphology of the marine iron-oxidizing bacterium Mariprofundus ferrooxydans. American Geophysical Union Fall 2006 meeting, talk. Chan, C. S., Fakra, S., and Banfield, J. F Iron oxyhydroxide mineralization by microbes in terrestrial environments. American Geophysical Union Fall 2004 meeting, poster. Chan, C. S., Nesterova, M., Welch, S. A., De Stasio, G., and Banfield, J. F Microbial polymer templation of iron oxyhdyroxides. Goldschmidt conference 2003, talk.

4 Clara Chan CV, page 4 of 5 Chan, C. S. and Banfield, J. F Roles of microbial communities and polymers in iron oxide mineralization. American Society for Microbiology 2003 General Meeting, poster. Chan, C. S. and Banfield, J. F Microbial communities associated with biogenic iron oxide mineralization in circumneutral ph environments. American Geophysical Union Fall 2002 meeting, poster. Chan, C. S., Skatvold, A. M., Labrenz M., Welch S. A., and Banfield, J. F Phylogenetic analysis of microbial populations associated with iron cycling in the Piquette Mine in Tennyson, Wisconsin. American Geophysical Union Fall 2001 meeting, poster. Druschel, G. K., Chan, C. S., Moreau, J., Thomsen-Ebert, T., Labrenz, M., Fowle, D., Welch, S. A., and Banfield, J. F., Biogenic precipitation of monomineralic nanocrystalline sulfides: Implications of observed and modeled processes to metal contaminant remediation and ore deposition Goldschmidt conference. Roberts, M.A., Chan, C. S., Howell, D.G., Wentworth, C.M., and Jachens, R.C D geologic maps. American Association of Petroleum Geologists Annual Meeting. Research Funding and Support NSF Ridge 2000 postdoctoral fellowship awarded for Linking genetics and mineralization of ironoxidizing microbes at midocean ridges award no Cryoelectron and high resolution transmission electron microscope time (2 weeks) awarded for Biomineralogy and ultrastructure of neutrophilic iron-oxidizing bacteria, Environmental Molecular Sciences Laboratory, Pacific Northwest National Lab Advanced Light Source beamtime awarded for Microbial polymer templation of iron oxide mineralization in biofilms and biomimetic synthesis: a STXM investigation ALS Service Website content editor, NSF Iron Microbial Observatory Public outreach, working with Herb Thier and Kevin Cuff at the Lawrence Hall of Science (Berkeley, CA) to develop activities and educational video for at risk middle-school students to teach principles of chemical and biological iron oxidation Reviewer, Environmental Science and Technology, Geobiology, American Mineralogist, Geochimica et Cosmochimica Acta Co-organizer, Earth and Planetary Science Department Speakers Program, Berkeley, Spring 2003 Activities chair, Water Environment Federation Student Chapter, Stanford, Founding member, GES Undergraduate Student Advisory Committee and School of Earth Sciences Undergraduate Advisory Committee, Stanford, Professional Training The Institute for Genomic Research (TIGR) Prokaryotic genome annotation course, Oct , 2006 Molecular Geomicrobiology, GS/MSA short course, Berkeley, CA, Dec. 2-4, 2006 Hawaii Astrobiology Winter School, University of Hawaii NASA Astrobiology Institute, Jan , 2005

5 Clara Chan CV, page 5 of 5 Skills Preparing for an Academic Career in the Geosciences, NAGT/NSF Professional Development Workshop, Aug , 2003 Applications of Synchrotron Radiation in Low-Temperature Geochemistry and Environmental Science, GS/MSA short course, Monterey, CA, Dec. 4-5, 2002 Electron microscopy, mineralogy: Scanning electron microscopy and high-resolution transmission electron microscopy, mineralogical and biological sample preservation and preparation (critical point drying, high pressure freezing, embedding and microtoming); X-ray diffraction. Geochemistry: ion chromatography, inductively coupled plasma-atomic emission spectroscopy. Synchrotron-based X-ray analyses: Scanning transmission X-ray microscopy, including NEXAFS (near-edge X-ray absorption fine structure) spectroscopy, and micro-exafs (extended X-ray absorption fine structure) at the Advanced Light Source, Lawrence Berkeley National Lab. Microbiology and molecular biology: Culturing, construction of 16S rrna gene clone libraries from environmental samples, phylogenetic analysis using BLAST, ARB, and PAUP, fluorescence in situ hybridization. Biochemistry: protein extraction, purification, antibody testing and immunolabeling for light, fluorescence and electron microscopy. Fieldwork: Groundwater well installation and monitoring, soil sampling and core logging, geochemical sampling and field-based analyses.