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Researchers from Pacific Northwest National Laboratory and collaborators have purified the protein called outer membrane cytochrome A (OmcA) from Shewanella oneidensis, a bacterium with promise for bioremediation of contaminants and the design of microbial fuel cells. They have measured its ability to bind and transfer electrons to mineral hematite, a solid ferric oxide. The team has shown that purified OmcA can directly reduce solid metals and that purified proteins are a next step in biofuel cell development.

In March 2006, a major dust storm occurred in Niamey, Niger. Although a common occurrence, this was the first time both satellite- and ground-based instruments were used simultaneously to assess the impact of airborne Saharan dust on incoming and outgoing solar radiation.

Scientists around the world use sophisticated computer models to simulate future scenarios of all types -- including global climate. Researchers at Pacific Northwest National Laboratory are playing a key role in the improvement of these models by providing new information about the role of aerosols in the atmosphere.

Researchers at Pacific Northwest National Laboratory and the University of Texas at Austin discovered that a single hydrogen atom just can't keep still after it splits from a water molecule on the surface of the catalyst rutile titanium oxide. The hydrogen atom hopscotches across the oxygen atoms that stud the surface of the catalyst, while the hydrogen on what is left from water remains fixed, suggesting that the electronic structure of this popular catalyst is not entirely as it seems.

Researchers at Pacific Northwest National Laboratory have been recognized again this year by the Federal Laboratory Consortium for their efforts in commercializing PNNL-developed technologies.

Biological breakthroughs to solve society's most challenging problems require innovative tools and a "different way" to analyze the enormous amounts of data being generated.

In the same amount of time it takes to download software or print a picture, you now can detect a chemical weapon agent. Needless to say, technology is cool.

Thin clouds high in the upper troposphere, like cirrus clouds, may have a significant influence on Earth's climate and enhance the "greenhouse effect" by absorbing more of the sun's radiation than they take in. Unknown is how ice crystals in these clouds absorb and reflect radiant energy and enhance the amount of radiant energy emitted toward the earth's surface.

Researchers at Pacific Northwest National Laboratory, the University of Minnesota and Oregon Health and Science University discovered that not all iron nanoparticles are created equal. Some, in fact, may be especially useful for cleaning up groundwater contaminated with carbon tetrachloride.Bi%3A1181862272

Fungi (yeasts, molds and mushrooms) have gotten a bad rap over the years. They have been blamed for infecting food crops and represent some of the most universal and costly pathogens known to man -- both of which overshadow the important contributions fungi make, such as providing critical agricultural nutrients and compounds for antibiotics.