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Biochemistry Apr 4, 2011

Pond alga could help scientists design effective method for cleaning up nuclear waste

Researchers from Northwestern University and Argonne National Laboratory have an enhanced understanding of a common freshwater alga and its remarkable ability to remove strontium from water. Insight into this mechanism ultimately ...

Nanomaterials Jan 12, 2011

Cracking a tooth: 3-D map of atoms sheds light on nanoscale interfaces in teeth, may aid materials design

Teeth and bone are important and complex structures in humans and other animals, but little is actually known about their chemical structure at the atomic scale. What exactly gives them their renowned toughness, hardness ...

Archaeology Jan 7, 2011

Skeletons in the pre-Cambrian closet

The Cambrian explosion marked a major blossoming in the tree of life around 540 million years ago. Nearly all of the major phyla in the animal kingdom appeared in a sudden burst of evolution. One of the drivers of this rapid ...

Condensed Matter Dec 22, 2010

Ever-sharp urchin teeth may yield tools that never need honing

(Âé¶¹ÒùÔºOrg.com) -- To survive in a tumultuous environment, sea urchins literally eat through stone, using their teeth to carve out nooks where the spiny creatures hide from predators and protect themselves from the crashing ...

Polymers Dec 9, 2010

Simulations aim to unlock nature's process of biomineralization

A University of Akron researcher is leveraging advanced modeling and simulation techniques to more precisely understand how organic materials bond to inorganic materials, a natural phenomenon that if harnessed, could lead ...

Earth Sciences Oct 5, 2010

Stepping stones through time

Stromatolites are the most ancient fossils on Earth, and these structures built by microbes can still be found forming today in various places around the globe. Although they provide a straight line of life’s history ...

Cell & Microbiology Apr 19, 2010

More Proof of Outer Membrane Cytochrome Role in Electron Transfer

(Âé¶¹ÒùÔºOrg.com) -- Another step toward improving understanding of electron exchange between microbes and minerals has been documented in the January 2010 issue of Geobiology. Bacteria such as the metal-reducing Shewanella oneidensis ...

Earth Sciences Mar 8, 2010

Deep sedimentation of acantharian cysts -- a reproductive strategy?

Spore-like reproductive cysts of enigmatic organisms called acantharians rapidly sink from surface waters to the deep ocean in certain regions, according to new research. Scientists suspect that this is part of an extraordinary ...

Materials Science Dec 21, 2009

Dental delight! Tooth of sea urchin shows formation of biominerals

(Âé¶¹ÒùÔºOrg.com) -- Some of the most common minerals in biology, including those in bones and shells, have a mysterious structure: Their crystals are positioned in the same orientation, making them behave as one giant crystal, ...

Nanophysics Dec 16, 2009

Watching Proteins Direct Crystal Growth One Step at a Time (w/ Video)

(Âé¶¹ÒùÔºOrg.com) -- Scientists at Berkeley Lab's Molecular Foundry imaged the growth of protein-studded mineral surfaces with unprecedented resolution and provided a glimpse into how living systems engineer key structural materials. ...

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