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DOE/Pacific Northwest National Laboratory


A biosensor layered like lasagna

A new biosensor technology has been developed that uses static electricity to layer proteins on carbon nanotubes, allowing for precise detection of biological chemicals and environmental agents. The technique enables enzymes to self-assemble in a layer-by-layer manner on the nanotube, resulting in improved sensitivity and specificity.

SourceDOE/Pacific Northwest National Laboratory·JournalJournal of Nanoscience and Nanotechnology·DateApr 28, 2006

Haze dynasty

A study by PNNL found that China's air pollution has caused a decrease in cloud cover over the past 50 years, resulting in more frequent clear skies and reduced surface heat from sunshine. The likely culprit is a nine-fold increase in fossil fuel emissions, which have entrenched China in a foggy haze.

SourceDOE/Pacific Northwest National Laboratory·JournalGeophysical Research Letters·DateJan 17, 2006

Wetness-defying water?

Researchers found a single layer of water on a platinum surface is hydrophobic, repelling subsequent layers, contrary to previous assumptions about water molecule attachment points. The discovery challenges current theories and has implications for technological applications such as catalysis and corrosion.

SourceDOE/Pacific Northwest National Laboratory·JournalPhysical Review Letters·DateOct 13, 2005

Earth lightens up

According to a new study published in Science, the Earth's surface has been getting brighter for more than a decade, with an increase of about 4% over the past decade. This trend may accelerate warming at the surface and unmask the full effect of greenhouse warming.

Dropping nano-anchor

Researchers at PNNL have developed a new technique to control the deposition of anchor molecules on carbon nanotubes using supercritical fluids, enabling precise control over the level of coating and thickness. This innovation improves the material's utility without compromising its physical properties.

Fleshing out the genome

A new method assigns biological functions to unknown genes, enabling genome comparison, by integrating experimental and computational analyses. This approach identifies functional proteins in 97% of hypothetical genes and provides a framework for ranking their precision and confidence.

SourceDOE/Pacific Northwest National Laboratory·JournalProceedings of the National Academy of Sciences·DateFeb 3, 2005