Projects

Surface stoichiometry and reactivity of La1-xSrxCoyFe1-yO3 surface from First-Principles Calculations

Lead Institution

University of Florida

Principal Investigator

Susan Sinnott

Project type

Large-Scale EMSL Research

The objective of the proposed work is to investigate the surface of mixed conducting solid oxide fuel cell (SOFC) cathodes. In detail, the effect of the dopants on oxygen stoichiometry of LaFeO3 (LFO…

Environmental Chemistry of Nitrogen-Containing Organic Compounds in Biomass Burning Aerosols

Lead Institution

University of Montana

Principal Investigator

Robert Yokelson

Project type

Large-Scale EMSL Research

The objective of the proposed research is to advance fundamental understanding of environmental chemistry of NOC present in BBA - the major sources of organic aerosols in the atmosphere. The…

Community proteomics of oxic-anoxic cycling in the Great Salt Lake, Utah

Lead Institution

National Ecological Observatory Network

Principal Investigator

John Parnell

Project type

Large-Scale EMSL Research

Extreme environments generally contain stable low-complexity microbial communities making them good targets for community proteomic studies. Often the caveat for low-complexity communities is the…

ab initio Quantum Calculations of 195Pt Knight Shifts in Pt-based Bimetallic Nanoparticles

Lead Institution

Georgetown University

Principal Investigator

YuYe Tong

Project type

Large-Scale EMSL Research

Nanoscale catalysts are of considerable importance in a number of industrially and environmentally applications of heterogeneous catalysis. Platinum-based bimetallic nanoparticles are the most…

Surface-Induced Dissociation of Complex Ions on an LTQ/Orbitrap Mass Spectrometer

Lead Institution

Purdue University

Principal Investigator

Julia Laskin

Project type

Large-Scale EMSL Research

Mass spectrometry is unique among instrumental analysis techniques in terms of its extraordinary sensitivity, molecular specificity and utility for addressing key questions in a broad range of…

Targeted identification of epigenetic determinants of T cell memory

Lead Institution

University of Tennessee

Principal Investigator

Heather Smallwood

Project type

Large-Scale EMSL Research

The ability to recognize previously encountered pathogens and rapidly eliminate them is critical to the immune system, as well as vaccine efficacy. A minute fraction of the millions of T cells…

Microscale Metabolic, Redox and Abiotic Reactions in Hanford 300 Area Subsurface Sediments

Lead Institution

Washington State University

Principal Investigator

Haluk Beyenal

Project type

Large-Scale EMSL Research

This proposal is the NMR component of a funded DOE/ERSP program project in which we proposed to use the Hanford 300 Area as a site for identifying microscale metabolic, abiotic and redox reactions in…

Proteomics of Arabidopsis thaliana and Poplar tree plastids: Understanding carbon allocation through the phenylpropanoid pathway

Lead Institution

Washington State University

Principal Investigator

Norman Lewis

Project type

Large-Scale EMSL Research

In this proposal, we wish to investigate, identify, and establish the factors affecting phenylalanine (Phe) biosynthesis in plastids of vascular plants, together with that of its transport to the…

MBE Growth and Properties of Model TiO2 Anatase Surfaces for Fundamental Studies of Heterogeneous Photocatalysis

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

The overall objective of this work is to provide the field of heterogeneous photocatalysis with unique insights into the molecular-level properties of photocatalytic transformations on TiO2 anatase…

Elucidation of Direct and Indirect Cellular Interactions within Methanogenic Biofilms

Lead Institution

Montana State University

Principal Investigator

Matthew Fields

Project type

Large-Scale EMSL Research

In light of the importance of exocellular transfer of reducing equivalents for interspecies H2 transfer, little work has been conducted on the effects of biofilm growth for syntrophic, methane…

MBE Growth and Properties of Epitaxial C-doped TiO2 for Visible Light Harvesting and Water Splitting

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

Development of new energy sources is a major need for the 21st century. Hydrogen has considerable potential as an alternative fuel. Fujishima and coworkers discovery in 1969 that water could be…

Site-Specific Sample Preparation of Surfaces and Buried Interfaces
for TEM and Atom Probe Analysis

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Matthew Olszta

Project type

Large-Scale EMSL Research

Technique development of methods for preparing cross-sectional TEM samples and atom-probe needle samples with the new dual-beam FIB instrument is proposed. Prior experience in FIB sample preparation…

NMR/OPTICAL Microscopy Studies of Oral Plaque Ecology

Lead Institution

University of California, Los Angeles

Principal Investigator

Wenyuan Shi

Project type

Large-Scale EMSL Research

Current tooth decay (dental caries) prevention methods include enamel hardening with fluoride and bacterial removal via mechanical and general antimicrobial approaches. These methods are based on the…

Epitaxial and Nanoscale Fe-doped TiO2 and Ti-doped alpha-Fe2O3 - Magnetic, Electronic and Photochemical Properties Modification via Selective Doping

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

The wide-ranging properties of transition metal oxides can in principle be expanded even further through selective doping. We propose to investigate the effect of doping TiO2 and alpha-Fe2O3 with…

Regulatory dynamics of microbial communities

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

H Wiley

Project type

Large-Scale EMSL Research

This is a proposal to conduct work in EMSL in support of the Foundational Scientific Focus Area (FSFA) research program at Pacific Northwest National Laboratory. This large-scale research program…

Complex Oxide Heteroepitaxial Growth of Novel Electronic and Magnetic Heterostructures

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

Complex oxide heteroepitaxial growth of pure and magnetically doped perovskite films will be studied with the dual goals of: (i) enhancing understanding of the details of the growth process, and, (ii…

The Reaction Specificity of Nanoparticles in Solution: Interactions between Iron Nanoparticles, their Coatings, and the Environment

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Donald Baer

Project type

Large-Scale EMSL Research

The objective of our research is to obtain fundamental information about the physical and chemical transformations that occur on and within mineral oxide nanoparticulates due to electron transfer…

Evaluating the role of DsrC as a key protein in dissimilatory sulfur metabolism

Lead Institution

Instituto de Tecnologia Quimica e Biologica

Principal Investigator

Ines Pereira

Project type

Large-Scale EMSL Research

The dissimilatory reduction of sulfur compounds is one of the earliest energy metabolisms detected on Earth, at ~3.5 billion years ago. Sulfate reducing bacteria (SRB) are prominent among sulfur…

Mossbauer Analysis of Microbial Redox Transformations of Fe-bearing Phyllosilicate and Oxide Minerals

Lead Institution

University of Wisconsin, Madison

Principal Investigator

Eric Roden

Project type

Large-Scale EMSL Research

Microbial Fe redox transformations have a major impact on the aqueous and solid-phase geochemistry of subsurface environments, as well as on the behavior of various organic and inorganic contaminants…

Geochemical Interactions of Fe-Sulfide Minerals with Uranium and Microorganisms
in Sediments from the DOE UMTRA site at Rifle, Colorado

Lead Institution

The Ohio State University

Principal Investigator

Brian Lower

Project type

Large-Scale EMSL Research

Previous biostimulation field-experimental studies (by injecting acetate into the aquifer)conducted at the DOE UMTRA (Uranium Mill Tailings Remedial Action) site in Rifle, CO, have demonstrated that…