Principal Investigator
David and Helene Pui Professor of Environmental Sustainability
Director, Water Circularity Center
Department of Earth and Environmental Sciences, College of Science and Engineering
Ph.D. – MIT/WHOI Joint Program in Oceanography, Marine Geomicrobiology
B.S. – University of Wisconsin – Madison, Geology
I’m an environmental and applied biogeochemist who grew up on Minnesota’s Iron Range—quite literally on a banded iron formation! Growing up in northern Minnesota fueled my love of geology, the outdoors, and the environment, and ultimately my commitment to advancing environmental sustainability and resilience. Outside of work, I love yoga, skiing, hiking, camping, traveling, exploring museums, finding the best coffee shops, watching sports, and spending time with my family.
You can follow me on LinkedIn or Google Scholar
Earth Sciences, University of Minnesota
Chris is a graduate student in the Earth Science department at the University of Minnesota working on a project focused on the deep biosphere. He is specifically interested in looking into how mineralogy impacts microbial communities in the subsurface; to answer this question, he studies a banded iron formation in northern Minnesota. His research involves the use of synchrotron-based x-ray microprobe techniques, electron microscopy, and lab-based geochemical analyses. When he’s not in the lab, he enjoys hiking, biking, and cooking.
Earth Sciences, University of Minnesota
Amanda is a PhD candidate in the Earth and Environmental Science department at the University of Minnesota who investigates Earth’s continental biosphere. Her project uses metagenomic sequencing and bioinformatics to investigate microbial metabolism and understand how microorganisms impact biogeochemical cycling in these systems, and her current focus is understanding the role of organosulfur compounds in the deep subsurface sulfur cycle.
Earth Sciences, University of Minnesota
Christof is a PhD candidate in the Earth and Environmental Sciences department at the University of Minnesota. He studies environmental lead (Pb) pollution in Minneapolis-St. Paul metro area soil and stormwater. Within his research, he has worked with cities and community organizations to monitor Pb pollution and describe the mechanisms for Pb transport and storage. Geochemical transformations of soil being deposited as pond sediments (between terrestrial and aquatic environments) are a focus for his research on Pb speciation and Pb-iron interactions. His research also includes Pb source identification using Pb isotopes.
Earth Sciences, University of Minnesota
Amelia is a PhD student in the Earth Science department at the University of Minnesota studying the geochemical impacts of land use on Manoomin/Psiη/Wild Rice as a part of the Kawe Gidaa-naanaagadawendaamin Manoomin research collaboration.
Earth Sciences, University of Minnesota
Madeline is a PhD student in the Earth Science department at the University of Minnesota.
[Madeline to update]
Biotechnology Institute, University of Minnesota
Pallabi is a Postdoctoral researcher in the Santelli Lab.
[Pallabi to update]
Mary Sabuda
Ph.D. Student
Alex Waheed
Master’s Student
Josh Torgeson
Ph.D. Student
Shreya Srivastava, Ph.D.
Postdoctoral Researcher
Current Position
Instructional Designer,
RMS US LLP
Brandy Stewart, Ph.D.
Postdoctoral Researcher
Current Position
Staff Scientist, Stanford Synchrotron Radiation Laboratory
Tingying Xu, Ph.D.
Postdoctoral Researcher
Current Position
Assistant Professor, Department of Geology, Oklahoma State University
Jackie Mejia, Ph.D.
Postdoctoral Researcher
Current Position
Director, gBETA Medtech Accelerator
Brandy Stewart, Ph.D.
Postdoctoral Researcher
Current Position
Environmental Protection Agency
Tingying Xu, Ph.D.
Postdoctoral Researcher
Margaret Anne Hinkle
Postdoctoral Fellow
Smithsonian Institute
Dominique Chaput, Ph.D.
Postdoctoral Fellow
Smithsonian Institute
Brandi Cron
Visiting Graduate Intern
Lexy Fowler
Research Technician
Kelly Duhn
Research Technician
Brayden Kuester
Undergraduate Researcher
Megan Wedal
Undergraduate Researcher
Rachel Tripp
Undergraduate Researcher
Gabriela Farfan
Undergraduate Intern
Alison Post
NHRE Undergraduate
Tyler Imfeld
NHRE Undergraduate
Ryan Nell
Undergraduate Intern
Elizabeth MacDonald
Undergraduate Researcher
B.S. Microbiology, UROP and LSURP, UMN
Riley Schmitter
Undergraduate researcher
B.S. Earth Sciences, UROP, UMN
Elizabeth Carlson
Undergraduate researcher
B.S. Environmental Science, Policy and Management, UMN
Christine Hitomi
Undergraduate researcher
Senior Honors Thesis (Chemistry), UMN
Onyou Seo
Undergraduate intern
Ellie Hill
Undergraduate Researcher
B.S. Earth Sciences, UMN
Max Loy
Undergraduate researcher
B.S. Ecology, Evolution and Behavior UMN