News tagged with dna molecules

Channeling our ion past

To understand how the first cells transported ions across their membranes, researchers are studying simple channels used by fungi to kill off bacteria.

dateJun 07, 2012 in Space Exploration
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DNA strands create tiniest Smileys

Harvard University scientists on Wednesday said they had created Smileys, Chinese characters and card-game symbols at scales of billionths of a metre using strands of DNA.

dateMay 30, 2012 in Bio & Medicine
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Nanofluidics sorts DNA for cancer research

(Phys.org) -- Cornell nanotechnology researchers have devised a new tool to study epigenetic changes in DNA that can cause cancer and other diseases: a nanoscale fluidic device that sorts and collects DNA, ...

dateMay 24, 2012 in Bio & Medicine
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DNA tug of war

A mathematical model created by Aalto University (Finland) researcher Timo Ikonen explains for the first time how the DNA chains in our genome are translocated through nanopores that are only a couple of nanometres thick.

dateMay 11, 2012 in General Physics
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Researchers use light to switch on gene expression

Imagine being able to control genetic expression by flipping a light switch. Researchers at North Carolina State University are using light-activated molecules to turn gene expression on and off. Their method enables greater ...

dateMay 10, 2012 in Biotechnology
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