Projects

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…

Computational Molecular Modeling of Microbial Iron Reduction

Lead Institution

University of Texas at El Paso

Principal Investigator

James Kubicki

Project type

Large-Scale EMSL Research

The remediation of contaminated soil and water systems is an $8 billion annual industry in the U.S. The development of accurate contaminant transportation models and effective bioremediation systems…

Overall warn syngas cleanup

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Liyu Li

Project type

Large-Scale EMSL Research

Gasification of biomass to syngas followed by catalytic synthesis of hydrocarbons or oxygenates provides a feasible strategy to meet the increasing demand for transportation fuels. This syngas has…

Fundamental Studies of Heterogeneous Photocatalysis on Model TiO2 Surfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Henderson

Project type

Large-Scale EMSL Research

The objective of this project is to provide the field of heterogeneous photocatalysis with unique insights into the molecular-level properties of photocatalytic transformations through joint…

Controlled Doping of TiO2 for Visible Light Photoactivity

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Henderson

Project type

Large-Scale EMSL Research

The ambition of supplementing the nation's energy needs through solar photocatalytic water splitting is a far from being realized with current photocatalytic materials. TiO2-based materials …

Determine 3d-structure of chemokine in apo form and in complex with its native receptor by solid state NMR

Lead Institution

Bristol-Myers Squibb

Principal Investigator

Luciano Mueller

Project type

Large-Scale EMSL Research

Structural biology has significantly accelerated the development of drug leads in protein targets for which 3d structures could be obtained either by XRAY crystallography or by NMR spectroscopy…

Characterization of Iron Sulfide Mineral Phases Associated with the Reductive Sequestration of Technetium

Lead Institution

Oregon Health & Science University

Principal Investigator

Paul Tratnyek

Project type

Large-Scale EMSL Research

Under reducing conditions, TcO4- is readily reduced to TcIV, which forms highly insoluble oxides such as TcO2-nH2O, but (re)oxidation of TcIV oxides can lead to remobilization. Under sulfidogenic…

Formation and Decomposition of Cerium-Based Nitrate Species

Lead Institution

University of Waterloo

Principal Investigator

William Epling

Project type

Large-Scale EMSL Research

We propose to study the effects of CO2 and H2O, two key diesel exhaust components, on the stability of nitrates bound to ceria on a Pt/Ce/Al2O3 catalyst. Commercial NOX storage/reduction (NSR)…

Exploring the Boundaries of Metazoan Thermotolerance at Hydrothermal Vents: Respiration and Protein Expression of Paralvinellid Worms

Lead Institution

Harvard University

Principal Investigator

Peter Girguis

Project type

Large-Scale EMSL Research

As evidence of global climate change mounts, there is a growing impetus to examine the responses of metazoan life to increasing thermal pressure. Organismal thermotolerance has been the subject of…