Experiments at Johns Hopkins have unearthed clues about which protein signaling molecules are allowed into hollow, hair-like "antennae," called cilia, that alert cells to critical changes in their environments.
Biochemistry
May 12, 2013
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Using bundles of vertical zinc oxide nanowires, researchers have fabricated arrays of piezotronic transistors capable of converting mechanical motion directly into electronic controlling signals. The arrays could help give ...
Nanophysics
Apr 25, 2013
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(Phys.org) —Your cells are social butterflies. They constantly interact with their surroundings, taking in cues on when to divide and where to anchor themselves, among other critical tasks.
Cell & Microbiology
Mar 21, 2013
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Researchers have for the first time demonstrated that mechanical forces can control the depolymerization of actin, a critical protein that provides the major force-bearing structure in the cytoskeletons of cells. The research ...
Cell & Microbiology
Mar 20, 2013
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Carbon nanotubes and magnetic molecules are considered building blocks of future nanoelectronic systems. Their electric and mechanical properties play an important role. Researchers of Karlsruhe Institute of Technology and ...
Nanophysics
Mar 15, 2013
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A 70-pound "cheetah" robot designed by MIT researchers may soon outpace its animal counterparts in running efficiency: In treadmill tests, the researchers have found that the robot—about the size and weight of an actual ...
Robotics
Mar 8, 2013
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As of today, the Wikipedia entry for the hummingbird explains that the bird's flight generates in its wake a single trail of vortices that helps the bird hover. But after conducting experiments with hummingbirds in the lab, ...
General Physics
Feb 25, 2013
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(Phys.org)—One of the surprising predictions of quantum mechanics is that uncharged conductors can attract each other over small distances, even in empty space. While the resulting "Casimir force" has been accurately measured ...
Quantum Physics
Feb 8, 2013
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The form and structure of bones change as a result of the forces to which they are subjected.
Other
Feb 1, 2013
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(Phys.org)—One of Ozgur Sahin's first machines was a mechanical adding device made from Legos. He made it when he was 11 and hasn't stopped making gadgets since. In graduate school Sahin created an atomic force microscope ...
Nanophysics
Jan 30, 2013
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