Michael Hochella

Thrust 3,4: Molecular Forces in Bacterial Adhesion at the Oxide-Water Interface

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Hochella

Project type

Grand Challenge

1) Influence of Fe(III) Oxide Particle Size on Organism/Oxide Interfacial Contact Area and Electron Transfer Rates. Dr. Hochella’s research group will investigate how the surface properties of…

Development of Surface Imaging Techniques for the Study of Mineral-Microbe Interactions

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Hochella

Project type

Exploratory Research

Quorum Sensing in a Dissimilatory Metal Reducing Bacterium

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Hochella

Project type

Large-Scale EMSL Research

Quorum sensing is a versatile regulatory mechanism exhibited by several members of Bacteria. Even though this area of research is a rapidly growing field with clear environmental applications, it…

Distance-Dependent Electron Transfer to Mineral Surfaces Mediated by Bacterial Multiheme Cytochromes

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Hochella

Project type

Large-Scale EMSL Research

The dissimilatory metal reducing bacterium Shewanella oneidensis is capable of utilizing certain mineral surfaces as electron acceptors in the terminal step of its respiratory pathway. Bacterial…

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…

Non-enzymatic interactions between U(VI) and biogenic mackinawite

Lead Institution

Virginia Polytechnic Institute

Principal Investigator

Harish Veeramani

Project type

Limited Scope

Reduction of subsurface contaminant uranium to a sparingly soluble mineral; uraninite (UO2) is being extensively researched as a remediation strategy for mitigating uranium contamination in-situ. The…

Uranium sequestration and release by framboidal pyrite in bioreduced sediments

Lead Institution

Virginia Polytechnic Institute

Principal Investigator

Harish Veeramani

Project type

Large-Scale EMSL Research

Exploratory research is proposed to gain insight into interactions between microbes, framboidal pyrite (FeS2), and uranium (U) in organic-matter rich, naturally bioreduced zones at an Integrated…

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…

Dinosaur proteins: Preservation of endogenous biomolecules in the fossil record

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Hochella

Project type

Limited Scope

A major goal in paleontology is to extract as much information possible from the fossilized remains that contain the history of life on Earth. We use preserved biomolecules (e.g., DNA, proteins and…

Nano-scale examinations of the sequestration of metal(loid)s by organic matter and mineral surface coatings in soils

Lead Institution

University of Manitoba

Principal Investigator

Michael Schindler

Project type

Large-Scale EMSL Research

Airborne particulate matter (PM) - suspended solid particles with diameters between a few nanometers (nm) and several micrometers - has always been a constituent of the Earth's atmosphere. Man…

Projects