SSRLUO 2015 Executive Committee Members

The SSRL Users Executive Committee (UEC) encourages users to participate in SSRL events and contact UEC members to share feedback or suggestions:
Stosh Kozimor, Los Alamos National Laboratory, C-NR, Los Alamos, NM (SSRL UEC Chair)
Jordi Cabana, University of Illinois at Chicago, IL
Kelly Chacón, Oregon Health & Science University, Portland, OR 
Justin Chartron, Stanford University, Stanford, CA 
Scott R. Daly, University of Iowa, Iowa City, IA
Paul Evans, University of Wisconsin, Materials Science and Engineering, Madison, WI
Colleen Hansel, Woods Hole Oceanographic Institution, Dept. of Marine Chemistry and Geochemistry, Woods Hole, MA (SSRL UEC Past Chair)
Vinayak V. Hassan, Applied Materials, Santa Clara, CA 
Debra Hausladen, Stanford University, Stanford, CA
Sarah Hayes, University of Alaska, Fairbanks, AL (Past Chair)
Dan Lin, Caltech, Pasadena, CA
Blaine Mooers, University of Oklahoma Health Science Center, Oklahoma City, OK
Edward Snell , Hauptman Woodward Institute, Buffalo, NY
Jessica Vey, California State University Northridge, Pharmacology, Northridge, CA
Chris Kim, Chapman University, Physical Sciences, One University Ave., Orange, CA (Ex officio SNUG)
Beth Wurzburg , LBNL, Joint Genome Institute, Berkeley, CA, (Ex Officio NUFO)
Lisa Dunn, SLAC (SSRL Liason, Ex Officio)
Cathy Knotts  SLAC (SSRL/LCLS Liaison, Ex Officio)

Jordi Cabana
University of Illinois at Chicago, IL 60607
Jordi Cabana recently joined the University of Illinois in 2013. Prior to that time, Jordi was a Research Scientist at LBNL. He moved to the US in 2005 to join Prof. Clare P. Grey’s group at the State University of New York at Stony Brook as a Postdoctoral Research Associate, after completing his Ph.D. in Materials Science at the Institute for Materials Science of Barcelona in Spain in 2004. Jordi's research work focuses on the design and characterization of materials for electrochemical energy storage, with emphasis placed on the understanding of the fundamental mechanisms of reaction. He has extensively used long range (X-ray and neutron diffraction) and short range (X-ray absorption spectroscopy, Nuclear Magnetic Resonance) characterization techniques, both in situ and ex situ, to probe crystal and electronic structure features of a variety of materials. He has performed some of these experiments at SSRL, ALS and NSLS. More recently, Jordi has leveraged technical developments in nanoscale chemical imaging to investigate kinetic and thermodynamic factors that control redox phase transformations in single particle and their ensembles.

Kelly Chacón
Oregon Health & Science University, Portland, OR  97239
Kelly Chacon is a 5th year Ph.D. student studying the mechanisms of biological copper transport utilizing X-ray absorption, EPR, rapid freeze quench, and stopped-flow spectroscopies. She has been an SSRL user since 2010 and has also conducted research at Argonne and Brookhaven National Labs. Her experience with dilute biological EXAFS began when she was a lab technician, prompting her to devote her subsequent graduate work on selenomethionine active site labeling as a spectroscopic probe of metalloprotein structure-function and metal transfer. She is currently a NSF Graduate Research Fellow at Oregon Health & Science University working with Professor Ninian J. Blackburn, and is also the 2015 Vice Chair/2016 Chair of the Gordon Research Seminar in Bioinorganic Chemistry. She received her B.S. in Chemistry with honors from Portland State University in 2009.
Justin Chartron
Stanford University, Stanford, CA  94025
Justin Chartron is a postdoctoral fellow working with Judith Frydman at Stanford University. His experience in protein crystallography began in 2001 as a high school intern with Dave Stout at The Scripps Research Institute where he crystallized several proteins whose structures were determined using data collected at SSRL. He continued working with Dave as an undergraduate at UC San Diego, and solved his first structure using anomalous scattering at BL9-2. He went to Caltech for graduate school fully intending to use the soon-to-be commissioned BL12-2. Working with Bil Clemons, he had the pleasure of watching the Molecular Observatory mature, and he has used its resources to determine numerous structures of proteins involved in membrane targeting. He complemented high resolution structures with small angle X-ray scattering data at BL4-2. In addition to SSRL, he uses ALS and APS. As a postdoc, he has initiated several structural projects in the Frydman group, which had not previously performed crystallography. He has trained several group members, and in recent months has used SSRL to determine structures of molecular machines involved in protein folding. His research focuses on the mechanisms discriminating alternative nascent protein fates.
Scott R. Daly
University of Iowa, Iowa City, IA  52317
Scott Daly joined the Department of Chemistry at the University of Iowa in 2014 after spending two years as a faculty member at the George Washington University in Washington, DC. He performed his graduate work in chemistry at the University of Illinois at Urbana-Champaign with Professor Gregory S. Girolami. His thesis focused on the synthesis and characterization of volatile inorganic compounds for thin film applications. After graduating, he accepted a Seaborg Postdoctoral Fellowship at Los Alamos National Laboratory. There he joined the LANL XAS program and spent two years investigating the role of covalency and electronic structure on actinide extractant selectivity. He has been an SSRL user since 2010 and has participated with NUFO at the 2013 user science exhibition and Congressional office visits in DC. His current research uses synchrotron spectroscopy and in-situ XAS to understand how chemical bonding in coordination complexes can be manipulated to enhance small molecule reactivity and ligand binding affinity.
Lisa Dunn (SSRL Liason, Ex Officio)
SSRL User Research Administration, 2575 Sand Hill Rd., Menlo Park, CA 94025
Lisa has worked at SSRL since 1986. She has managed the administration of protein crystallography proposals and experiments since 2000. Lisa earned her Bachelor of Science degree from San Jose State University.
Paul Evans
University of Wisconsin, Materials Science and Engineering, Madison, WI 53706
Paul Evans's research group focuses on the development and application of microscopy and scattering techniques to physical problems associated with emerging electronic materials, including complex oxide ferroeletrics and multiferroics as well as organic and inorganic semiconductor interfaces. Particular areas of interest with respect to x-ray science are in time-resolved and ultrafast probes and the incorporation of ultrafast time resolution into scattering techniques yielding nanometer-scale spatial resolution. Evans received PhD and SM degrees from Harvard University (Applied Physics), a BS degree in Engineering Physics from Cornell Univeristy, and was a postdoctoral researcher at Bell Labs.
Colleen Hansel (SSRL UEC Past Chair)
Woods Hole Oceanographic Institution, Dept. of Marine Chemistry and Geochemistry, Woods Hole, MA 02543-1050
Colleen is an Associate Scientist at the Woods Hole Oceanographic Institution and was previously an Associate Professor at Harvard University. The foundation of her research is metal biogeochemistry and microbe-mineral interactions. Colleen conducted her graduate work at Stanford University with Scott Fendorf exploring microbial mediated Fe mineral transformations. She continued her research at Stanford as a postdoc, where she identified novel mechanisms of microbial Mn(II) oxidation and Mn oxide formation. Currently, Colleen’s research group continues to explore the mechanisms of microbially mediated metal (e.g., Fe, Mn, Hg) cycling and mineralization and the subsequent impact of those transformations on the ecology and health of microbial populations. Colleen has been a user at SSRL since 1998 and has also conducted research at ALS and APS.
Vinayak V. Hassan
Applied Materials, Santa Clara, CA  95054
Vinayak is a Process Engineer in the Office of the CTO at Applied Materials. He has a Masters in Materials Science & Engineering from Stanford University. His graduate research was in the field of ultrafast materials science with Professor David Reis in Applied Physics. The focus of his research was to study the non-equilibrium phonon dynamics in semiconductors, using time resolved optical & x ray spectroscopy. After he joined Applied Materials in 2011, he became part of a team developing advanced materials technology for the semiconductor industry. His current research is geared towards understanding the optical & electrical properties of sub nanometer semiconductor films. He has an extensive background in materials characterization of thin films. Some of his past & current projects involve x-ray scattering measurements at APS, SSRL & ALS. He recognizes the crucial role synchrotron facilities play in the advancement of the semiconductor industry.
Debra Hausladen
Stanford University, Stanford, CA  94305
Debra Hausladen is a fifth-year Ph.D. student in Scott Fendorf’s laboratory at Stanford University. Prior to studying soil biogeochemistry, she worked in MIT’s Department of Civil and Environmental Engineering developing a nanowire membrane for passive sampling of hydrophobic organic contaminants. Her current research focuses on the mobility of trace metals (e.g., Cr, Mn, Fe) in soils under fluctuating redox conditions. Debra combines synchrotron-based techniques (e.g., bulk and micro X-ray absorption spectroscopy, micro-X-ray fluorescence mapping, X-ray micro-tomography) with bulk chemical analysis and molecular microbiological techniques to understand how microbial communities influence contaminant cycling within physically complex soils and sediments. She has been a frequent user of SSRL since 2010 and has also conducted research at ALS.
Sarah Hayes (Past Chair)
University of Alaska, Fairbanks, AL 99775
Sarah Hayes is an assistant professor at the University of Alaska, Department of Chemistry & Biochemistry. Prior to this position, she was a Mendenhall postdoctoral fellow at the US Geological Survey in Menlo Park. She performed her Ph.D. research at the University of Arizona with Dr. Jon Chorover on the speciation of toxic metals in arid mine tailings. She gave a talk on the applications of microprobe spectroscopy to environmental scienceAt the 2009 SSRL user meeting. Her current work at the USGS with Andrea Foster and Laurie Balistrieri involves studying the sorption mechanism of tellurium (used in solar panel manufacture) to iron oxides and tellurium speciation in various geomedia. Her current research interests are focused on understanding the link between toxic metal speciation in geomedia and their associated risks to human and ecosystem health.
Chris Kim (Ex officio SNUG)
Chapman University, Physical Sciences, One University Ave., Orange, CA 92866
Assistant Professor in the Department of Physical Sciences at Chapman University in Southern California. He conducted his graduate work at Stanford University under Gordon Brown and continued his research as a post-doc at Lawrence Berkeley National Laboratory with Glenn Waychunas. He has been a user at SSRL since 1996 and has also conducted research at the ALS and APS. Currently, he is studying trends in the speciation, concentration, and distribution of heavy metals in mine wastes as well as the mechanisms and extent of metal uptake and (co-)precipitation with iron oxyhydroxide nanoparticles. Chris is also involved in increasing opportunities for undergraduate students to conduct research at national synchrotron facilities.
Cathy Knotts (SSRL/LCLS Liaison, Ex Officio)
User Research Administration, 2575 Sand Hill Rd., Menlo Park, CA 94025
Cathy has managed  SSRL User Research Administration since November 2000, taking on the additonal responsibilities for establishing and managing a joint SSRL/LCLS User Office in 2009 when LCLS began operations with the first user assisted commissioning experiments. Before joining SLAC, Cathy managed administrative operations and corporate communications in the biotechnology industry (1994-2000). Prior to moving to California to help start a biotech company, she was a management analyst for the National Institute on Aging/National Institutes of Health in Maryland. Cathy graduated from the University of Maryland majoring in Health Science and Policy.
Stosh Kozimor (SSRL UEC Chair)
Los Alamos National Laboratory, C-NR, Los Alamos, NM 87545
Stosh Kozimor is a staff member at LANL. He conducted his graduate research with Professor William J. Evans at the University of California, Irvine in inorganic and organometallic synthesis, and his work was recognized in 2005 by the UCI Department of Chemistry Joan Rowland Award for meritorious performance in graduate studies. In the same year, he was offered a Director's Fellowship from LANL to continue his studies in actinide science. However he deferred, and accepted a position at the University of California with Professor Jeffrey R. Long to study magnetic exchange between actinides and transition metals. During this time he was awarded a Distinguished Reines Postdoctoral Fellowship at LANL and presented an opportunity to work in a completely different field, using synchrotron-generated radiation to probe electronic structure. Currently his interests lie in research that involves energy and the environment through fields loosely defined by synthesis, electronic structure, and synchrotron spectroscopy.
Dan Lin
Caltech, Pasadena, CA  91125
Daniel (Dan) Lin is a fourth-year graduate student in Andre Hoelz's laboratory at the California Institute of Technology. His projects focus on determining the structure of the nuclear pore complex using a combination of x-ray crystallography and other biochemical and biophysical techniques. Many of these projects involve x-ray diffraction experiments of large protein complexes that exhibit weak and/or anisotropic diffraction and require optimal beamline performance and data collection strategies. Prior to joining the Hoelz laboratory, Dan worked in Niraj Tolia's laboratory at the Washington University School of Medicine on the structure of malaria invasion proteins while studying as an undergraduate at Washington University in St. Louis. Dan is a frequent user of beamlines at SSRL and APS and has also performed experiments at ALS and NSLS.
Blaine Mooers
University of Oklahoma Health Science Center, Oklahoma City, OK 73190
Blaine entered crystallography as a graduate student by working on problems in DNA structure with Dr. Shing Ho at Oregon State University. He switched to problems in protein structure as a post-doc with Dr. Brian Matthews at the University of Oregon. While a post-doc, he started using synchrotron radiation to collect atomic resolution data from proteins and made his first trip to SSRL in 1999 where he has been returning almost every year. He started a lab at the University of Oklahoma Health Science Center that is focused on structural studies of RNAs from the RNA editing system in the mitochondrion of trypanosomes. His lab has been involved in SAXS studies for the past three years and started to make regular trips to BL 4-2 in addition to the protein crystallography beam lines.
Edward Snell
Hauptman Woodward Institute, Buffalo, NY
Eddie's background is X-ray crystallography, bio spectroscopy and small angle X-ray scattering (SAXS), which are complementary techniques that are invaluable to furthering the structural and mechanistic information on the biological world.
Jessica Vey
California State University Northridge, Pharmacology, Northridge, CA 91330
Jessica Vey is an Assistant Professor in the Department of Chemistry and Biochemistry at CSUN. She was trained as a protein crystallographer as a graduate student in Dr. Catherine Drennan¹s laboratory at MIT and as a postdoctoral researcher in Dr. Tina Iverson¹s laboratory at Vanderbilt University Medical Center. She has been an SSRL user since 2002, and is now using protein crystallography, biochemistry and bioinformatics to characterize selected flavin-containing monooxygenases, with the long-term goal of rationally engineering enzymes to alter their substrate specificity.
Beth Wurzburg (Ex Officio NUFO)
LBNL, Joint Genome Institute, Berkeley, CA 94305 USA
Beth Wurzburg was a Research Associate at the LBNL Joint Genome Institute. Previously, Beth was a Research Associate in the laboratory of Prof. Ted Jardetzky. She trained as a protein biochemist (Don Wiley's laboratory) and as a crystallographer (Ted Jardetzky's laboratory), and she has been collecting data at synchrotrons since 1995. Her research interests include biophysical studies of proteins of the immune system and of human pathogens.


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