News tagged with passive diffusion
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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Search results for passive diffusion
Unique approach to materials allows temperature-stable circuits
(Phys.org) -- Sandia National Laboratories researcher Steve Dai jokes that his approach to creating materials whose properties won’t degenerate during temperature swings is a lot like cooking — mixing ...
May 31, 2012 |
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'Nanoslinky': A novel nanofluidic technology for DNA manipulation and measurement
Remember Slinky, the coiled metal spring that “walks” down stairs with just a push, momentum and gravity? Researchers at the National Institute of Standards and Technology (NIST) have developed their ...
Nanotechnology / Bio & Medicine
Mar 21, 2012 |
3.3 / 5 (4) |
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A tale of tails
(PhysOrg.com) -- An international group of astronomers led by Tom Scott at the Instituto de Astrofísica de Andalucía in Granada, Spain, has discovered extraordinarily long one-sided gaseous tails ...
Dec 06, 2011 |
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Interdigitated back-contact silicon solar cells above 23% efficiency
Imec together with its silicon photovoltaic industrial affiliation program partners Schott Solar, Total, Photovoltech, GDF-SUEZ, Solland Solar, Kaneka and Dow Corning, have demonstrated an excellent conversion ...
Dec 02, 2011 |
4 / 5 (3) |
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Are you a next generation user of the internet?
(PhysOrg.com) -- A new survey shows that nearly half of internet users in Britain are ‘Next Generation Users’, who routinely access the internet on the move using portable devices – more than ...
Oct 18, 2011 |
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Scientists learn how horseweed shrugs off herbicide
As everyone knows, the pharmaceutical industry is struggling to deal with bacteria that have become resistant to common antibiotics. Less well known is the similar struggle in agribusiness to deal with weeds ...
Jun 16, 2011 |
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Researchers develop improved method to visualize biologic molecules, reinstate classic model
Princeton researchers have developed a new method to better understand how an embryo's basic molecular makeup helps ensure that the embryo's development occurs reliably every time.
Mar 01, 2011 |
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'Magnetic sponge' could be a new form of cell and drug delivery
(PhysOrg.com) -- Engineers at Duke and Harvard universities have developed a "magnetic sponge" that after implantation into a patient can "squeeze" out drugs, cells, or other agents when passed over by a magnet.
Nanotechnology / Bio & Medicine
Dec 14, 2010 |
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Suicide bombing likely to increase as more militant groups adopt tactic, research shows
“Many state and international counter-terrorism initiatives are based on misconceptions of the underlying reasons behind terrorism and suicide bombing,” says Dr. Paul Gill, who has been selected to receive the ECPR Jean Blondel ...
Other Sciences / Social Sciences
Sep 22, 2010 |
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Road signs and traffic signals on DNA: Physical model describes the distribution of nucleosomes
The DNA genomes of organisms whose cells possess nuclei are packaged in a highly characteristic fashion. Most of the DNA is tightly wrapped around protein particles called nucleosomes, which are connected to each other by ...
Aug 20, 2010 |
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List of search results for passive diffusion
