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Dip-pen lithography creates active protein nanoarrays

Arrays of proteins attached to solid surfaces have become important tools in drug discovery and cancer diagnostics, but in general, the immobilized proteins themselves are inactivated by the processes used to create these arrays. Now, however, researchers at Northwestern University have used dip-pen nanolithography to create arrays of antibodies that retain their ability to bind to their biological substrates.

Posted: Apr 17th, 2006

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Crystal sieves, born anew

The porous, sieve-like minerals known as zeolites have been used for decades in purifiers, filters and other devices. Yet creating and refining a new type of zeolite is still a matter of sophisticated trial and error: no one has been able to figure out exactly how the crystals form, even in the laboratory.

Posted: Apr 17th, 2006

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Laser wave drives electrons in chemical bonds

Researchers have demonstrated that the detailed shape of the electric field inside a short light pulse can be used to control the motion of electrons involved in chemical bonding and to change the outcome of a simple chemical reaction.

Posted: Apr 13th, 2006

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Nanofibers created in orderly fashion

Researchers have found a way to use the electric-field process to make nanofibers in a direct, continuous and controllable manner. The new technique, known as near-field electrospinning, offers the possibility of producing out of nanofibers new, specialized materials with organized patterns that can be used for such applications as wound dressings, filtrations and bio-scaffolds.

Posted: Apr 13th, 2006

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Efficient flat-panel light invented

Tired of fluorescent tubes? Imagine your ceiling - or any surface - as a giant light panel, thanks to research from University of Southern California (USC) and Princeton University.

Posted: Apr 12th, 2006

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Nanoscience rising up to meet energy challenge

Tiny materials may bring about large-scale advances in a future hydrogen economy, Institute Professor Mildred S. Dresselhaus told audiences Wednesday, April 5, at MIT and at the Technion Israel Institute of Technology.

Posted: Apr 11th, 2006

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