News tagged with ion pump
Molecular simulations explain how enzymatic pumps transport calcium ions within muscle cells
The transport of ions is essential for the routine maintenance of the body. For this reason cells contain specialized enzymes that act as pumps that help ions to move around and pass through boundaries.
Feb 18, 2011 |
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Search results for ion pump
With single laser pulses on single molecules
(PhysOrg.com) -- Physicists at MPQ (Max Planck Institute) succeed in resolving the internal dynamics of individual molecules using UV femtosecond laser pulses.
Feb 07, 2012 |
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Channeling into cell control
A research team from the RIKEN Brain Science Institute in Wako, Japan, has visualized and accurately modeled the molecular changes that open and close the internal membrane channels for calcium ions within ...
Jan 20, 2012 |
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Computer simulations give insights into how carbon dioxide reacts with a sequestering liquid
(PhysOrg.com) -- Worse than toddlers on a sugar high, carbon dioxide molecules just don't like standing still. The tiny molecules, just three atoms, leap from place to place in less than a trillionth of a ...
Jan 18, 2012 |
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Scientists recreate evolution of complexity using 'molecular time travel'
Much of what living cells do is carried out by "molecular machines" – physical complexes of specialized proteins working together to carry out some biological function. How the minute steps of evolution produced these ...
Jan 08, 2012 |
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Navy researchers investigate small-scale autonomous planetary explorers
Robotic exploration to remote regions, to include distant planetary bodies, is often limited by energy requirements to perform, in repetition, even the simplest tasks. With this in mind, researchers at the ...
Jan 03, 2012 |
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Scientists record electrical currents that control male fertility
Performance anxiety? Not for this human sperm.
Dec 29, 2011 |
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Deciphering the mechanism of an ion pump
From an analysis of the sodium-transporting vacuolar ATPases (V-ATPases) of the bacterium Enterococcus hirae, Takeshi Murata of the RIKEN Systems and Structural Biology Center, Yokohama, and colleagues recently ...
Dec 16, 2011 |
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Nanowrinkles, nanofolds yield strange hidden channels
Wrinkles and folds are ubiquitous. They occur in furrowed brows, planetary topology, the surface of the human brain, even the bottom of a gecko's foot. In many cases, they are nature's ingenious way of packing ...
Nanotechnology / Nanomaterials
Nov 23, 2011 |
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Enzymatic synthesis of pyrrolysine, the mysterious 22nd amino acid
With few exceptions, all known proteins are built up from only twenty amino acids. 25 years ago scientists discovered a 21st amino acid, selenocysteine and ten years ago a 22nd, the pyrrolysine. However, how the cell produces ...
Nov 18, 2011 |
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Researchers take first steps toward X-ray superfluorescence
(PhysOrg.com) -- While physicist Robert Dicke is probably most famous for his work on the cosmic microwave background (CMB) – and being "scooped" while attempting to be the first to detect it – he ...
Nov 14, 2011 |
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List of search results for ion pump
