Projects

As a scientific user facility, the Environmental Molecular Sciences Laboratory (EMSL) provides expertise, instrumentation, and resources to 250 projects each year.

EMSL projects displayed on the EMSL web site project page reflect project abstracts and information migrated to this page before April 30, 2024. To review current and past EMSL user projects, visit EMSL Science Central.™

Deciphering controls on metal migration within floodplains: The critical role of redox environments on metal-organic complexes

Lead Institution

Stanford University

Principal Investigator

Scott Fendorf

Project type

Large-Scale EMSL Research

Dissolved organic matter (DOM) is a major but poorly understood control over the mobility of micronutrient and contaminant metals in surface and subsurface systems. Variations in the chemical…

Sticky Roots -- Implications of Altered Rhizodeposition for the Fate of Mineral-associated Organic Matter in Natural Ecosystems

Lead Institution

University of Massachusetts Amherst

Principal Investigator

Marco Keiluweit

Project type

Large-Scale EMSL Research

The proposed research aims to improve mechanistic understanding of links among rhizodeposition of reactive organic compounds by plant roots, microbial activity, and the stability of mineral…

Carbon signaling cascades that enable the carbohydrate-selective plant biomass degradation by brown rot fungi

Lead Institution

University of Minnesota

Principal Investigator

Jiwei Zhang

Project type

Large-Scale EMSL Research

Fungi are dominant microbes for carbon turnover of plant biomass in terrestrial systems. Some of them, namely brown rot fungi, evolved more efficient mechanisms than others, causing the fast…

Keystone mutualisms: understanding the role of fungi in organizing soil bacterial food webs

Lead Institution

Stanford University

Principal Investigator

Kabir Peay

Project type

Large-Scale EMSL Research

The goal of our project is to create a predictive understanding of how fungi structure soil bacterial foodwebs. We will do this through an experiment designed around what is one of the fundamental…

Multiscale analysis to explore the molecular landscape of Sorghum bicolor stem over time and space

Lead Institution

University of Illinois at Urbana-Champaign

Principal Investigator

Amy Marshall-Colon

Project type

Large-Scale EMSL Research

Sorghum bicolor is an important bioenergy crop because it has high nutrient and water use efficiency, and produces a large quantity of biomass that can be processed into ethanol for biofuels. Many…

Multi-watershed perturbation-response traits derived through ecological theory

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James Stegen

Project type

Large-Scale EMSL Research

This project will transform our ability to understand and predict how the influences of biogeochemical hot spots and hot moments on surface-subsurface systems are altered by disturbance. New theory…

Past is Prologue: Ancient Glass Analogues for the Long-Term Disposal of Vitrified Nuclear Waste

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Carolyn Pearce

Project type

Large-Scale EMSL Research

Microbes are ubiquitous in the terrestrial surface and have mastered the art of establishing equilibrium in their localized environment. Samples obtained during an excavation of Broborg, an ancient…

Why is Arctic tundra soil respiration carbon limited at low temperatures?

Lead Institution

University of Toledo

Principal Investigator

Michael Weintraub

Project type

Large-Scale EMSL Research

Soil microbial communities are active during much of the long Arctic winter, despite low temperatures, so overwinter microbial activity is important to global carbon (C) budgets. C-rich Arctic soils…

Dissecting Fe Driven Changes to Metabolism in Photosynthetic Eukaryotes

Lead Institution

Michigan State University

Principal Investigator

Stefan Schmollinger

Project type

Large-Scale EMSL Research

Iron (Fe) is an essential micronutrient for nearly all forms of life, because of its vital role in respiration, photosynthesis, central carbon metabolism, as well as other reactions involving…

Understanding the Roles of Phase State and Phase Separation in the Growth of Secondary Organic Aerosols

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Rahul Zaveri

Project type

Large-Scale EMSL Research

We propose to investigate the fundamental roles of phase state and phase separation in the growth of secondary organic aerosols (SOA) formed from oxidation of selected volatile organic compounds (in…

Influence of hematite crystal face on organic ligand surface interactions with iron oxide/water interfaces studied using nonlinear spectroscopy techniques and molecular simulation methods.

Lead Institution

University of Puget Sound

Principal Investigator

Amanda Mifflin

Project type

Large-Scale EMSL Research

The proposed work will examine the interfacial phenomena of the organic ligand acetohydroxamic acid (aHa) at the hematite/water interface and the molecular structure at organic/aqueous interface…

Identification of plant immune-active metabolic constituents of extracellular bacterial vesicles

Lead Institution

Duke University

Principal Investigator

Meta Kuehn

Project type

Large-Scale EMSL Research

Cells release vesicles to carry out a variety of functions, including both beneficial and antagonistic inter-kingdom communication. Bacteria release vesicles constitutively and by activation, and…

Molecular understanding of nutrient and organic sorption on model mineral surfaces

Lead Institution

Oregon State University

Principal Investigator

Kelsey Stoerzinger

Project type

Large-Scale EMSL Research

This proposal aims to obtain molecular understanding of the sorption of nitrogen (N) oxyanions and model organic species on model mineral surfaces, and ultimately provide better constraints in…

Surface Migration of Additives in Polymers

Lead Institution

Cornell University

Principal Investigator

Lynden Archer

Project type

Large-Scale EMSL Research

Field-induced migration of oligomers dispersed in a host polymer is a promising method for modifying the host polymer's surface to improve properties such as paintability, biocompatibility, and…

TEM Study on SOFC Interconnects and Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Z. Gary Yang

Project type

Large-Scale EMSL Research

In recent years, progress in materials and fabrication techniques have allowed for a reduction in solid oxide fuel cell (SOFC) operating temperatures to a range (e.g., 650-800ºC) where oxidation…

The Study of Atomic Gold Clusters in Polyaniline

Lead Institution

Georgia Institute of Technology

Principal Investigator

Miraslawa Josowicz

Project type

Large-Scale EMSL Research

Previous reserch done in our Group in collaboration with the PNNL scientists, Don Baer and Mark Engelhard, has shown that polyaniline (PANI) can be used as a matrix for formation of Au clusters. By a…

The Reduction of Uranyl and Chromate to Insoluble Species by Green Rust and Other Ferrous Hydroxides Surfaces

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Martin Schoonen

Project type

Large-Scale EMSL Research

Electron transfer reactions play an important role in determining of the fate of many environmental contaminants. Reduction from high-oxidation states (+5/+6), where the metal is stabilized in…

Characterization of synthesised mixed valent natuarlly occuring Fe-films

Lead Institution

University of Greifswald

Principal Investigator

Georg Grathoff

Project type

Large-Scale EMSL Research

A new mixed-valent (ferric-ferrous) precursor to ferrihydrite, a floating iron film often misidentified as an oil film, has been identified and preliminarily characterized. This mixed-valent iron…

NMR Study of Novel Hydrogen Storage Materials

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Z. Gary Yang

Project type

Large-Scale EMSL Research

In the past two years, PNNL has collaborated with the University of Connecticut with aims to develop nanostructured hydrides and to obtain insights into the hydrogen desorption and sorption of the…

Age related post translational modifications to proteins that alter protein complexes determined by FTICR-MS

Lead Institution

University of Tennessee

Principal Investigator

Heather Smallwood

Project type

Large-Scale EMSL Research

Reactive oxygen species (ROS) are central to the immune response; however, ROS also produce posttranslational modifications (PTMs) on intracellular proteins in the state of chronic inflammation we…

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