Want to silence a gene? Pull here

(PhysOrg.com) -- Simply stretching DNA can silence a gene, scientists at the UA have discovered. The finding could point to a previously unknown gene control mechanism.

Dynamic systems in living cells break the rules

There is considerable interest in understanding transport and information pathways in living cells. It is crucial for both the transport of, for example, medicine into cells, the regulation of cell life processes and their ...

Scientists isolate, hold, photograph individual Rubidium 85 atom

(PhysOrg.com) -- In a major physics breakthrough, University of Otago scientists have developed a technique to consistently isolate and capture a fast-moving neutral atom - and have also seen and photographed this atom for ...

Tractor beams come to life

Tractor beams, energy rays that can move objects, are a science fiction mainstay. But now they are becoming a reality -- at least for moving very tiny objects.

Gently unfolding proteins to watch them refold

(PhysOrg.com) -- How does a protein chain fold into the same 3-D shape each time and not something disfunctional or dangerous? A new study shows that the first fold is critical. The finding by Susan Marqusee and Carlos Bustamante ...

Micro-ear lets scientists eavesdrop on the micro-world

(PhysOrg.com) -- Acting as a microscope for sound, a new device called a micro-ear could make objects on the micro-scale audible. The device could enable scientists to listen to the sounds that cells and bacteria make as ...

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