Kevin Rosso

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…

Thrust Area #2: Molecular modeling of electron transfer in Fe(III) oxides

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Grand Challenge

Molecular modeling and simulation studies in combination with electron transfer theory calculations will be carried out to characterize the cytochrome mediated electron transfer process across the…

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

Project type

Exploratory Research

The PNNL Scientific Focus Area (SFA) will resolve critical Hanford and basic subsurface science issues through integrated, multi-disciplinary, science-theme focused research on the role of…

Multiscale processes of heteroepitaxial nucleation and growth at mineral-water interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Sebastien Kerisit

Project type

Large-Scale EMSL Research

The goal of the proposed research is to elucidate the mechanisms and quantify the rates of heteroepitaxial nucleation and growth at mineral-water interfaces. Despite several examples of heteroepitaxy…

Heteroepitaxial nucleation and growth of complex coatings at mineral/water interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Sebastien Kerisit

All realistic mineral surfaces in natural waters can be expected to be coated, and their reactive properties influenced by the presence of coatings. Heteroepitaxial growth is the templated growth of…

Electronic structure determination on mineral surfaces

Lead Institution

University of Michigan

Principal Investigator

Udo Becker

Project type

Exploratory Research

Periodic and cluster electronic structure calculations will be jointly performed on pyrite and galena surfaces to elucidate the energetics of indirect interactions between adsorbates and surface…

Exploring the processes that control uranyl reduction by magnetite and the growth of nanoparticulate surface precipitates by X-ray scattering and X-ray absorption spectroscopy

Lead Institution

Lawrence Berkeley National Laboratory

Principal Investigator

Glenn Waychunas

Project type

Exploratory Research

Uranium (U) has been released into the environment through mining operations, nuclear testing, and accidental spills, and is a contaminant in soils, sediments and groundwater at 70% of the Department…

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

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…

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

Large-Scale EMSL 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

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

Thrust Area #2: Molecular modeling of electron transfer in Fe(III) oxides

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Multiscale processes of heteroepitaxial nucleation and growth at mineral-water interfaces

Heteroepitaxial nucleation and growth of complex coatings at mineral/water interfaces

Electronic structure determination on mineral surfaces

Exploring the processes that control uranyl reduction by magnetite and the growth of nanoparticulate surface precipitates by X-ray scattering and X-ray absorption spectroscopy

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

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