News tagged with dna molecules
Related topics: dna sequences , molecules , genetic information
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.
Nanotechnology / Bio & Medicine
39 minutes ago |
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Researchers demonstrate possible primitive mechanism of chemical info self-replication
(Phys.org) -- When scientists think about the replication of information in chemistry, they usually have in mind something akin to what happens in living organisms when DNA gets copied: a double-stranded molecule ...
May 25, 2012 |
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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, ...
Nanotechnology / Bio & Medicine
May 24, 2012 |
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Research uncovers new exception to decades-old rule about RNA splicing
There are always exceptions to a rule, even one that has prevailed for more than three decades, as demonstrated by a Cold Spring Harbor Laboratory (CSHL) study on RNA splicing, a cellular editing process. The rule-flaunting ...
May 17, 2012 |
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When the soil holds not enough phosphorus: Scientists describe new transporter in cells of plant roots
Plants cannot survive without phosphorus. It forms the backbone of many crucial molecules (such as DNA) and is a key player in energy transfer reactions. Low availability of phosphorus is a major environmental ...
May 15, 2012 |
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New research could mean faster computers and better mobile phones
Graphene and carbon nanotubes could improve the electronics used in computers and mobile phones, reveals new research from the University of Gothenburg, Sweden.
Nanotechnology / Nanomaterials
May 14, 2012 |
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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.
May 11, 2012 |
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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 ...
May 10, 2012 |
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Molecule necessary for DNA repairs also halts them
(Phys.org) -- Repairing DNA breaks can save a cell’s life—but shutting off the repair machinery can be just as critical. How cells accomplish this feat was unknown. However, new research by Johns Hopkins scientists, ...
May 07, 2012 |
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A needle in a haystack: How does a broken DNA molecule get repaired?
Scientists from the Kavli Institute of Nanoscience at Delft University of Technology have discovered a key element in the mechanism of DNA repair. When the DNA double helix breaks, the broken end goes searching for the similar ...
May 03, 2012 |
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Molecular alternatives to DNA, RNA offer new insight into life's origins
Living systems owe their existence to a pair of information-carrying molecules: DNA and RNA. These fundamental chemical forms possess two features essential for life: they display heredity—meaning they can encode and ...
Apr 19, 2012 |
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Researchers create molecular Braille to identify DNA molecules
Researchers at UCLA and New York University have developed a method to detect sequence differences in individual DNA molecules by taking nanoscopic pictures of the molecules themselves.
Nanotechnology / Bio & Medicine
Mar 28, 2012 |
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Tiny reader makes fast, cheap DNA sequencing feasible
Researchers have devised a nanoscale sensor to electronically read the sequence of a single DNA molecule, a technique that is fast and inexpensive and could make DNA sequencing widely available.
Nanotechnology / Bio & Medicine
Mar 26, 2012 |
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To get the full story you need to know the motifs
Genome sequencing alone provides researchers with only limited information on the organism works because it neither reveals how the system is regulated nor does it indicate the role of each specific DNA sequence or RNA transcript. ...
Mar 26, 2012 |
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A double ring ceremony prepares telomerase RNA to wed its protein partner
Few molecules are more interesting than DNA—except of course RNA. After two decades of research, that "other macromolecule" is no longer considered a mere messenger between glamorous DNA and protein-synthesizing ...
Mar 25, 2012 |
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