News tagged with pore
Nanopores make sterile filtration more reliable
Irregular pores, low flow rates: The plastic membrane filters used in sterile filtration do not always ensure that conditions are really sterile. Filter membranes of aluminum oxide are more reliable - the ...
Nanotechnology / Nanomaterials
Jul 01, 2010 |
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Nuclear pores call on different assembly mechanisms at different cell cycle stages
Nuclear pores are the primary gatekeepers mediating communication between a cell's nucleus and its cytoplasm. Recently these large multiprotein transport channels have also been shown to play an essential ...
Jun 10, 2010 |
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Aiming to boost electronics performance, researchers capture images of sub-nano pore structures for the first time
(PhysOrg.com) -- Moore's law marches on: In the quest for faster and cheaper computers, scientists have imaged pore structures in insulation material at sub-nanometer scale for the first time. Understanding ...
Jun 08, 2010 |
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Breaking Up Can Be Hard
Laura Townsend '10 eases a soggy lump of concrete out from what looks like a gigantic pizza oven. "Come on, whoa! -- This bad boy is going to fall apart," she says as she inspects the pebbly mass and then ...
May 05, 2010 |
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Nuclear pore complexes harbor new class of gene regulators
Nuclear pore complexes are best known as the communication channels that regulate the passage of all molecules to and from a cell's nucleus. Researchers at the Salk Institute for Biological Studies, however, ...
Feb 04, 2010 |
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Pores finding reveals targets for cancer and degenerative disease
Walter and Eliza Hall Institute scientists have identified a key step in the biological process of programmed cell death, also called apoptosis.
Dec 18, 2009 |
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Newly identified enzymes help plants sense elevated CO2 and could lead to water-wise crops
Biologists have identified plant enzymes that may help to engineer plants that take advantage of elevated carbon dioxide to use water more efficiently. The finding could help to engineer crops that take advantage of rising ...
Dec 13, 2009 |
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Long-Term Effects of Carbon Dioxide on Plants Studied
(PhysOrg.com) -- Long-term, open-top chamber studies of how rising carbon dioxide (CO2) could affect crops, forests, and pastures reveal a wide range of impacts, according to Agricultural Research Service ...
Dec 09, 2009 |
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Biologists reveal structure of cell nucleus 'gatekeeper'
(PhysOrg.com) -- Biologists led by associate professor Thomas Schwartz (MIT) have worked out a rudimentary architectural plan for the nuclear pore complex (NPC), the gatekeeper of the cell's nucleus.
Oct 27, 2009 |
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Come on in: Nuclear barrier less restrictive than expected in new cells
When it comes to the two basic types of cells, prokaryotes and eukaryotes, compartmentalization is everything. Prokaryotes are evolutionarily ancient cells that only have a membrane surrounding their outer boundary, while ...
Oct 06, 2009 |
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'Promiscuous' protein interactions found in the nuclear pore complex
(PhysOrg.com) -- The NPC is the only way in or out of a cell's nucleus. It plays a key role in cellular metabolism and signaling, and any malfunction in these pores can have lethal consequences. Now new research reveals further ...
Sep 29, 2009 |
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Solving the Nuclear Pore Puzzle
(PhysOrg.com) -- Computational biochemist Frank Alber compares determining the architecture of a macromolecular machine to solving a jigsaw puzzle.
Aug 19, 2009 |
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New research supports model for nuclear pore complex
(PhysOrg.com) -- To protect their DNA, cells in higher organisms are very choosy about what they allow in and out of their nuclei, where the genes reside. Guarding access is the job of transport machines called nuclear pore ...
Aug 18, 2009 |
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Research suggests core nuclear pore elements shared by all eukaryotes
(PhysOrg.com) -- For perhaps 1.8 billion years after life first emerged on Earth, a sort of evolutionary writer’s block stalled the development of organisms more complicated than single cells. Then, a burst of experimental ...
Jul 13, 2009 |
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Research identifies 3-D structure of key nuclear pore building block
The genome of complex organisms is stashed away inside each cell's nucleus, a little like a sovereign shielded from the threatening world outside. The genome cannot govern from its protective chamber, however, without knowing ...
Jun 07, 2009 |
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