Kevin Rosso

Microscale and spectroscopic investigations in geochemical and microbiological systems

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

Project type

Large-Scale EMSL Research

Apply experimental manipulation and field investigations to understanding the behavior of selected chemical and microbial components in natural systems. The research is targeted towards compounds…

Interactions Between Fe(III) - Reducing Bacteria and Fe Oxides: Microbial and Geochemical Dissolution Controls (Zachara BES-oxide), PNNL Scope #28036)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

Project type

Exploratory Research

Investigate electron transfer mechanisms involved in bacterial Fe(III) oxide reduction. Work authorization text added 08/11/05: Fe(III) oxides poise the oxidation/reduction potential of…

Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL.PNNL Scientific Focus Area. The PNNL SFA will develop a predictive understanding…

Harnessing Biomineralization Potential of Metal-Oxidizing Bacteria for REE Synthesis

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Alex Beliaev

Although redox reactions and enzymes participating in the extracellular oxidation of Fe and Mn are identified, little is known about the biomineralization mechanisms that facilitate formation…

Novel Nanoporous Getters to Immobilize 99Tc at the Yucca Mnt (Mattigod/Felmy/Rosso, Yucka Mtn, PNNL Scope #45873)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Herman Cho

Project type

Exploratory Research

Paul did some SEM w/ Brad Avery. Odeta needs ICP-MS. Kevin Rosso: Structures of two layered Zr/Ti&#61485;phosphate type materials will be examined in detail. The first phase is of…

Advances in Understanding Electron Transfer Kinetics at Environmental Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

This EMSL user proposal requests a continuation of EMSL access for a BER funded Environmental Molecular Sciences Institute (EMSI) project led by Dr. Rosso at PNNL. This project constitutes the PNNL…

The Role of Microenvironments and Physicochemical Subsurface Components on Field Scale Biogeochemistry and Contaminant Mobility

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

Project type

Exploratory Research

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

Mechanisms of Fe(II)-Catalyzed Transformation of Fe(III)-(Oxyhydr)oxides

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

Interaction of aqueous Fe(II) with major Fe(III)-oxides and oxyhydroxides yields the enigmatic catalytically reactive "sorbed Fe(II)" species and apparent facile recrystallization of even…

Conductivity of bacterial nanowires

Lead Institution

J. Craig Venter Institute

Principal Investigator

Yuri Gorby

Project type

Exploratory Research

Scanning tunneling microscopy will be used to image and characterize bacterial appendages produced by iron reducing bacteria that are believed to be involved with the extracellular reduction of iron…

Mechanisms and dynamics of abiotic and biotic interations at Environmental Interfaces (Rosso EMSI-Stanford, PNNL Scope # 47286).

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Exploratory Research

I. STANFORD EMSI SCIENCE OVERVIEW The main scientific focus of the Stanford EMSI is on chemical and microbiological interactions at solid-aqueous solution interfaces of relevance to Earth?s near…

The Role of Extracellular Polymeric Substances in Bacterial Fouling of Membranes

Lead Institution

University of Houston

Principal Investigator

Shankar Chellam

Project type

Exploratory Research

Micro- and nano-porous membranes are currently employed for environmental separations to protect public health arising from a plethora of contaminants including microorganisms, natural and synthetic…

Experimental Capabilities and Fundamental Science for Geologic Carbon Sequestration: The PNNL In Situ Supercritical Suite (IS3)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Loring

Project type

Large-Scale EMSL Research

This Science Theme proposal requests EMSL access for investigators in the In Situ Supercritical Suite (IS3) component of PNNL's Carbon Sequestration Initiative (CSI). The CSI is a multi-million…

Building a Predictive Understanding of Particle-Based Mineral Growth

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James De Yoreo

Project type

Large-Scale EMSL Research

Traditional models of mineral formation through monomer-by-monomer addition have been challenged by recent evidence for crystallization through the addition of "particles," ranging from…

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…

Linking Microscopic to Macroscopic Adsorption/Desorption Behavior for Uranium on Environmental Materials

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

This Science Theme proposal requests EMSL access for a subtask on an existing funded project at PNNL. The task is focused on determination of molecular-scale adsorption, desorption, and…

Coupled Surface and Solid-State Charge and Ion Transport Dynamics at Mineral/Water Interfaces: Redox Transformation of the Iron Oxides

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

This EMSL user proposal requests a continuation of EMSL access for a BES Geosciences supported project led by Dr. Rosso at PNNL. The past three years of research under this BES project we have been…

The Transformation of Tetrahedral to Octahedral Coordination in Anions of Interest in High-Level Tank Waste

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Jian-zhi Hu

Project type

Exploratory Research

We propose to use nuclear magnetic resonance (NMR), Raman and Fourier transform-infrared (FT-IR) spectroscopy in combination with computational modeling to study the conversion of soluble tetrahedral…

EMSL Science Overview

Kevin Rosso

Projects

Microscale and spectroscopic investigations in geochemical and microbiological systems

Interactions Between Fe(III) - Reducing Bacteria and Fe Oxides: Microbial and Geochemical Dissolution Controls (Zachara BES-oxide), PNNL Scope #28036)

Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone

Harnessing Biomineralization Potential of Metal-Oxidizing Bacteria for REE Synthesis

Novel Nanoporous Getters to Immobilize 99Tc at the Yucca Mnt (Mattigod/Felmy/Rosso, Yucka Mtn, PNNL Scope #45873)

Advances in Understanding Electron Transfer Kinetics at Environmental Interfaces

The Role of Microenvironments and Physicochemical Subsurface Components on Field Scale Biogeochemistry and Contaminant Mobility

Mechanisms of Fe(II)-Catalyzed Transformation of Fe(III)-(Oxyhydr)oxides

Conductivity of bacterial nanowires

Mechanisms and dynamics of abiotic and biotic interations at Environmental Interfaces (Rosso EMSI-Stanford, PNNL Scope # 47286).

The Role of Extracellular Polymeric Substances in Bacterial Fouling of Membranes

Experimental Capabilities and Fundamental Science for Geologic Carbon Sequestration: The PNNL In Situ Supercritical Suite (IS3)

Building a Predictive Understanding of Particle-Based Mineral Growth

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

Linking Microscopic to Macroscopic Adsorption/Desorption Behavior for Uranium on Environmental Materials

Coupled Surface and Solid-State Charge and Ion Transport Dynamics at Mineral/Water Interfaces: Redox Transformation of the Iron Oxides

The Transformation of Tetrahedral to Octahedral Coordination in Anions of Interest in High-Level Tank Waste