News tagged with building blocks
Identical twins reveal mechanisms behind aging
In a recent study led by Uppsala University, the researchers compared the DNA of identical (monozygotic) twins of different age. They could show that structural modifications of the DNA, where large or small DNA segments ...
Feb 02, 2012 |
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Moonlighting enzyme works double shift 24/7
A team of researchers led by Michigan State University has discovered an overachieving plant enzyme that works both the day and night shifts.
Jan 31, 2012 |
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Metabolic errors can spell doom for DNA
Many critical cell functions depend on a class of molecules called purines, which form half of the building blocks of DNA and RNA, and are a major component of the chemicals that store a cell’s energy. ...
Jan 31, 2012 |
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'Worm speak' uses chemicals to communicate
(PhysOrg.com) -- A species of small, transparent roundworms have a highly evolved language in which they combine chemical fragments to create precise molecular messages that control social behavior, reports ...
Jan 26, 2012 |
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Scientists discover new clue to the chemical origins of life
Organic chemists at the University of York have made a significant advance towards establishing the origin of the carbohydrates (sugars) that form the building blocks of life.
Jan 24, 2012 |
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Chemists devise a way to create a five point knotted molecule
(PhysOrg.com) -- Chemists have for a long time been interested in a type of molecule that is literally tied up into a knot. This is where atoms are bonded together to form strands, which are then twisted around ...
Dec 30, 2011 |
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Scientists excited over hints of finding an elusive particle
Scientists are quivering with anticipation - flying halfway around the world for a close-up view of the action and devouring the latest updates from the blogosphere the way some girls track the doings of Justin Bieber.
Dec 12, 2011 |
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Study of switching behavior in differential dual spin valves reveals the role of interlayer couplings
Spin valves are essential building blocks in the magnetic sensors of read heads in hard disk drives. They consist of two magnetic layers separated by a non-magnetic layer and act as valves for electrons depending ...
Dec 12, 2011 |
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Researchers link patterns seen in spider silk, melodies
Using a new mathematical methodology, researchers at MIT have created a scientifically rigorous analogy that shows the similarities between the physical structure of spider silk and the sonic structure of ...
Dec 08, 2011 |
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Chemists become molecular sculptors, synthesizing tiny, molecular traps
(PhysOrg.com) -- Using clever but elegant design, University at Buffalo chemists have synthesized tiny, molecular cages that can be used to capture and purify nanomaterials.
Nanotechnology / Nanomaterials
Dec 05, 2011 |
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Chromosome centromeres are inherited epigenetically
Centromeres are specialised regions of the genome, which can be identified under the microscope as the primary constriction in X-shaped chromosomes. The cell skeleton, which distributes the chromosomes to ...
Nov 03, 2011 |
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Cold chemistry: Icy dust specks could provide interstellar staging ground for complex organic chemical reactions
The creation of the Universe was a messy business, and billions of years after the Big Bang, material still litters the dark space between stars. In these cold interstellar regions, gas and dust specks swirl together, sometimes ...
Oct 31, 2011 |
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Researchers fabricate DNA strands on a reusable chip, fold them into novel nanostructures
In the emerging field of synthetic biology, engineers use biological building blocks, such as snippets of DNA, to construct novel technologies. One of the key challenges in the field is finding a way to quickly and economically ...
Nanotechnology / Bio & Medicine
Oct 31, 2011 |
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The architects of the brain: Scientists decipher the role of calcium signals
German neurobiologists have found that certain receptors for the neurotransmitter glutamate determine the architecture of nerve cells in the developing brain. Individual receptor variants lead to especially long and branched ...
Medicine & Health / Neuroscience
Oct 26, 2011 |
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New technique unravels transport in living brain cells
A new technique has made it possible to study the functioning of motor proteins in living brain cells. Previously, this could previously only be done under artificial conditions outside the cell. Motor proteins transport ...
Oct 20, 2011 |
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