Projects

Biomineralology and ultrastructure of neutrophilic iron-oxidizing bacteria

Lead Institution

University of Delaware

Principal Investigator

Clara Chan

Project type

Large-Scale EMSL Research

The purpose of the proposed research is to investigate the spatial relationships between iron-oxidizing microbial cells, extracellular polymers, and biogenic iron minerals. The main microbes of…

Study of Thermal decomposition of Polyester Fibers Treated with Phosphorus Flame Retardants

Lead Institution

University of California, Davis

Principal Investigator

Sabyasachi Gaan

Project type

Large-Scale EMSL Research

Polyester fibers are one of the most widely used polymer in manufacturing of textiles and films. They are made flame retardant by application phosphorus based flame retardants. The mode of action of…

Enhanced ionic conductivity of samaria doped ceria thin films through tailoring the dopant concentration and microstructures

Lead Institution

Nanjing Normal University

Principal Investigator

Zhongqing Yu

Project type

Large-Scale EMSL Research

Development of electrolyte materials that possess high oxygen ion conductance at relatively low temperatures is essential to increase the efficiency and lifetime of electrochemical devices such as…

Biocompatible, Engineered Surfaces of Mixed Chemistry

Lead Institution

University of Utah

Principal Investigator

Vladimir Hlady

Project type

Large-Scale EMSL Research

High resolution in situ spatial imaging is critical to visualizing how molecules adsorb and arrange themselves on surfaces. In order to image proteins or organic molecules on surfaces, scanning probe…

Development of an integrated atomic force / fluorescence microscope at EMSL

Lead Institution

The Ohio State University

Principal Investigator

Brian Lower

Project type

Large-Scale EMSL Research

We propose to develop a new spectroscopic/microscopic capability at EMSL that combines atomic force microscopy (AFM) with fluorescence microscopy allowing for simultaneous force and fluorescence…

Specificity of Shewanella oneidensis outer membrane cytochromes
OmcA and OmcB towards iron- and manganese-oxide surfaces

Lead Institution

The Ohio State University

Principal Investigator

Brian Lower

Project type

Large-Scale EMSL Research

Metal-reducing bacteria have a unique ability to reduce solid-phase iron- and manganese- oxides in anaerobic environments. Unlike oxygen, Fe and Mn oxides, in a solid form, cannot diffuse across the…

The Formation and Structure of Tropical Organic/Water Aerosols

Lead Institution

University of Colorado at Boulder

Principal Investigator

Gayfree Ellison

Project type

Large-Scale EMSL Research

Atmospheric aerosols are widely recognized as key elements in many environmental issues ranging from global climate change and visibility to adverse effects on peoples health. Aerosols affect climate…

The role of U(V) during heterogeneous reduction of aqueous U(VI) to U(IV).

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Eugene Ilton

Project type

Large-Scale EMSL Research

This proposal is being submitted in response to the Science theme call: Biogeochemistry and Subsurface Science, understanding the chemistry of radionuclides in the subsurface. It directly relates to…

Design Criteria for Organic Charge Transporting Materials through Computational Modeling

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Linda Sapochak

Project type

Large-Scale EMSL Research

ABSTRACT We propose to use EMSL computational facilities for developing predictive models which will guide the design of new organic charge transporting materials for thin film energy conversion…

Clusters of Damage in Irradiated DNA

Lead Institution

Colorado State University

Principal Investigator

John Zimbrick

Project type

Large-Scale EMSL Research

This EMSL project will increase our knowledge of the spatial characteristics of the free radical damage at the interface between the physical deposition of energy in DNA from gamma irradiation and…

The Impact of Carbonate on Surface Protonation, Electron Transfer and Crystallization Reactions in Iron Oxide Nanoparticles and Colloids

Lead Institution

University of Alabama

Principal Investigator

David Dixon

Project type

Large-Scale EMSL Research

In this proposal we outline a plan to address three key issues of importance in the geochemical behavior of iron oxides and in the geochemical cycling of iron, specifically the influence of…

A Proteomic Dissection of the Hg(II) Toxicity Paradox

Lead Institution

University of Georgia

Principal Investigator

Anne Summers

Project type

Large-Scale EMSL Research

Mercury (Hg) in all its forms is a contaminant at most DOE sites, especially at Oak Ridge National Laboratory (ORNL) where the spread of spilled Hg and its effects on microbial populations have been…

Cryo-EM investigations of interfacial bacterial extracellular polymeric substance (EPS) in vanadium interactions

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Matthew Marshall

Project type

Large-Scale EMSL Research

In anaerobic conditions, dissimilatory metal-reducing bacteria such as Shewanella oneidensis MR-1 can reduce a variety of polyvalent metal ions either as soluble complexes or associated with solid…

The role of PdZn alloy formation and particle size on the selectivity for steam reforming of methanol

Lead Institution

University of New Mexico

Principal Investigator

Abhaya Datye

Project type

Large-Scale EMSL Research

Pd/ZnO has been shown in recent years to possess high selectivity towards CO2 during methanol steam reforming. It is commonly assumed that PdZn alloy formation is essential to achieve high…

Fabrication of Photomasks and Patterned Molds Using Photolithography

Lead Institution

Portland State University

Principal Investigator

Mingdi Yan

Project type

Exploratory Research

Our research at Portland State University focuses on microfabrication and molecular recognition. We are frequent in need of micron-size molds in our research. Due to the lack of microfabrication…

Characterization of Chemistry and Physics at Metal-Polythiophene and Metal-Carbon Interfaces

Lead Institution

Carnegie Mellon University

Principal Investigator

Lisa Porter

Project type

Large-Scale EMSL Research

We propose to use photoemission techniques to investigate the chemistry and physics that govern electrical properties at metal-semiconductor interfaces that have a potential for future energy…

Development of Novel Microchip CE-MS Platform for Organic Aerosol Characterization

Lead Institution

Oak Ridge National Laboratory

Principal Investigator

Xiao-Ying Yu

Project type

Large-Scale EMSL Research

Atmospheric particulate matter (PM) has significant impact on global climate, visibility, and human health. Although organic compounds typically constitute 10-70% of the total dry fine particle mass,…

Free radical Reactions in the Catalytic Cycle of Cytochrome bc Complexes

Lead Institution

University of Alabama

Principal Investigator

Michael Bowman

Project type

Large-Scale EMSL Research

The cytochrome bc complex is a large ~750 kiloDalton molecular weight protein complex that is embedded in the mitochondrial or cellular membrane and is a central component of the electron transport…

Model system surface science approach to study photochemistry at adsorbate-substrate interfaces:
The trimethyl acetate, silver, titania system

Lead Institution

University of Texas at Austin

Principal Investigator

John White

Project type

Large-Scale EMSL Research

The field of heterogeneous photocatalysis on TiO2 has experienced unusual growth in the past decade because of increased interest in using light to promote chemical transformations. Researchers in…

Correlation of Structure and Function of Zinc Metalloproteins Via a Combined NMR/Molecular Theory Approach

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Andrew Lipton

Project type

Large-Scale EMSL Research

One of the most significant challenges in the metallobiochemistry of Zn2+ is the a priori determination of how the metal center will facilitate a particular chemical reaction. Two examples…