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Building organs block by block with 'biological legos'

Tissue engineering has long held promise for building new organs to replace damaged livers, blood vessels and other body parts. However, one major obstacle is getting cells grown in a lab dish to form 3-D shapes instead of flat layers. Researchers have come up with a new way to overcome that challenge, by encapsulating living cells in cubes and arranging them into 3-D structures, just as a child would construct buildings out of blocks.

Posted: May 13th, 2010

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Molecular robots on the rise

Researchers from Columbia University, Arizona State University, the University of Michigan and the California Institute of Technology (Caltech) have created and programmed robots the size of single molecule that can move independently across a nano-scale track.

Posted: May 13th, 2010

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Computer scientist shows how evolution meets computation in new book

Nature and technology may seem worlds apart, but New York University Computer Scientist Dennis Shasha maintains that the natural world can bolster the capacity of today's most sophisticated machines. In Natural Computing: DNA, Quantum Bits, and the Future of Smart Machines, Shasha and co-author Cathy Lazere describe the work of 15 pioneers who have successfully harnessed nature's power in advancing technology.

Posted: May 12th, 2010

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Chemists create novel DNA assembly line

Chemists at New York University and China's Nanjing University have created a DNA assembly line that has the potential to create novel materials efficiently on the nanoscale.

Posted: May 12th, 2010

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Spiders at the nanoscale: Molecules that behave like robots

A team of scientists from Columbia University, Arizona State University, the University of Michigan, and the California Institute of Technology (Caltech) have programmed an autonomous molecular 'robot' made out of DNA to start, move, turn, and stop while following a DNA track.

Posted: May 12th, 2010

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Superparamagnetic gold nanoshells with tunable optical properties

A solution-phase process has been developed by CNM users from the University of California at Riverside, working collaboratively with the Nanophotonics Group, for synthesizing stable multifunctional colloidal particles composed of a superparamagnetic Fe3O4 core, a gold nanoshell, and a mesoporous silica outer layer.

Posted: May 12th, 2010

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World record for shortest controllable time

Scientist at the Max Born Institute for Nonlinear Optics and Short Time Spectroscopy (MBI) in Berlin, Germany have demonstrated timing control with a residual uncertainty of 12 attoseconds.

Posted: May 11th, 2010

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DNA could be backbone of next generation logic chips

In a single day, a solitary grad student at a lab bench can produce more simple logic circuits than the world's entire output of silicon chips in a month. So says a Duke University engineer, who believes that the next generation of these logic circuits at the heart of computers will be produced inexpensively in almost limitless quantities.

Posted: May 11th, 2010

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