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CU researchers solve mystery of how DNA strands separate
07-02-2007 · EurekAlert!Cornell researchers have answered a fundamental question about how two strands of DNA separate to start a process called replication, in which genes copy themselves. The research examined the role of an enzyme called a helicase, which plays a major role in separating DNA strands.
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Keywords: researchers, solve, mystery, dna, strands, separate, researcher, strand
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- Controlling the movement of water through nanotube membranes
02-13-2007 · EurekAlert!
By fusing wet and dry nanotechnologies, researchers at Rensselaer Polytechnic Institute have found a way to control the flow of water through carbon nanotube membranes with an unprecedented level of precision. The research, which will be described in the March 14, 2007 issue of the journal Nano Letters, could inspire technologies designed to transform salt water into pure drinking water almost instantly, or to immediately separate a specific strand of DNA from the biological jumble.
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- Microfluidic chip helps solve cellular mating puzzle
02-21-2007 · EurekAlert!
Using a biochemical version of a computer chip they invented, a team of researchers has solved a long-standing mystery related to the mating habits of yeast cells.
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- University of Alberta space research to solve aurora mystery
01-10-2007 · EurekAlert!
On Feb. a15, NASA will launch the largest number of scientific satellites ever sent into orbit aboard a single rocket. A handful of Alberta scientists will be at Kennedy Space Center watching and waiting. For Dr. Ian Mann and Dr. John Samson, researchers in the Department of Physics at the University of Alberta, the real fun will begin when the satellites start taking measurements in the eye of space storms above observatories spread across North America.
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- The solution to a 7-decade mystery is crystal-clear to FSU chemist
10-19-2007 · EurekAlert!
A Florida State University researcher has helped solve a scientific mystery that stumped chemists for nearly seven decades. In so doing, his team's findings may lead to the development of more-powerful computer memories and lasers.
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- Scientists solve mystery of how malaria hijacks red blood cells
01-15-2007 · EurekAlert!
Northwestern University researchers have uncovered how malaria parasites break into red blood cells and how to block the invading parasites with a commonly prescribed high-blood pressure medication. This opens the door for important new drugs to which the parasites are much less likely to become resistant. Malaria is surging worldwide because of drug resistance and the lack of an effective vaccine. Jamaica, which had eradicated the disease for 50 years, recently reported an outbreak.
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- Chromosome glue repairs damaged DNA
07-13-2007 · EurekAlert!
When a strand of DNA breaks in the body's cells, it normally does not take long until it has been repaired. Now researchers at the Swedish medical university Karolinska Institutet have discovered a new mechanism that helps to explain how the cell performs these repairs. The results are presented in Science.
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- 'Junk' DNA now looks like powerful regulator, Stanford researcher finds
04-23-2007 · EurekAlert!
Large swaths of garbled human DNA once dismissed as junk appear to contain some valuable sections, according to a new study by researchers at the Stanford University School of Medicine and the University of California-Santa Cruz. The scientists propose that this redeemed DNA plays a role in controlling when genes turn on and off.
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- UVa-led team uncovers important secret in gene replication
06-13-2007 · EurekAlert!
A team of researchers led by University of Virginia Health System geneticists has uncovered a major secret in the mystery of how the DNA helix replicates itself time after time. It turns out that it is not just the sequence of the bases -- building blocks -- in the DNA, but also how loosely or tightly the chromatin -- the material that makes up chromosomes -- is packed at different points of the chromosome that is critical.
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- New, invisible nano-fibers conduct electricity, repel dirt
06-28-2007 · EurekAlert!
Tiny plastic fibers could be the key to some diverse technologies in the future -- including self-cleaning surfaces, transparent electronics, and biomedical tools that manipulate strands of DNA. Researchers created surfaces that, seen with the eye, look as flat and transparent as a sheet of glass. But seen up close, the surfaces are actually carpeted with tiny fibers.
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- Video shows buckyballs form by 'shrink wrapping'
10-26-2007 · EurekAlert!
The birth secret of buckyballs -- hollow spheres of carbon no wider than a strand of DNA -- has been caught on tape by researchers at Sandia National Laboratory and Rice University. An electron microscope video and computer simulations show that "shrink-wrapping" is the key; buckyballs start life as distorted, unstable sheets of graphite, shedding loosely connected threads and chains until only the perfectly spherical buckyballs remain.
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