Foresight Nanotech Institute Weekly News Digest: July 2, 2008
Discuss these news stories at http://foresight.org/nanodot.
Exposure to two different wavelengths of light can cause the azobenzene molecule to switch back and forth between two different shapes. This molecular shape-changing works well in solution but until now has not worked with molecules attached to surfaces. Now scientists from Penn State University and Rice University have found a way to make the switching work when the molecules are tethered to a surface—a first step toward making this molecular switching useful for nanotech devices…
Foresight Event – Vision Weekend
While searching for genes involved in how bacteria stop moving around and settle into stationary communities called biofilms, scientists discovered a molecular clutch that disengages the powerful molecular motor that spins the flagellum that propels the bacteria. This flagellum clutch mechanism may provide ideas useful for nanotech control of molecular motors…
Following a roadmap for organic and printed electronics, a new concept for a very cheap plastic nanotech memory has been developed by combining the favorable properties of ferroelectrics and semiconductors…
A nanotech version of the optical tweezers traditionally used to manipulate micrometer-scale objects manipulates objects at the 200-nm scale…
A very brief but intriguing article on ScienceDaily reports that millimeter-scale nanotech structures self-assembled from hybrid nanowires can sense and respond to external stimuli, like magnetic fields and light…
—Nanodot posts by James Lewis
November 15-16, 2008
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July 23, 2008
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