News tagged with cell surface
Plasmonic device converts light into electricity
(PhysOrg.com) -- While the most common device for converting light into electricity may be photovoltaic (PV) solar cells, a variety of other devices can perform the same light-to-electricity conversion, such ...
Nov 09, 2011 |
4.6 / 5 (13) |
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Folding light: Wrinkles and twists boost power from solar panels
Taking their cue from the humble leaf, researchers have used microscopic folds on the surface of photovoltaic material to significantly increase the power output of flexible, low-cost solar cells.
Apr 27, 2012 |
4.9 / 5 (15) |
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DNA nanorobot triggers targeted therapeutic responses
Researchers at the Wyss Institute for Biologically Inspired Engineering at Harvard University have developed a robotic device made from DNA that could potentially seek out specific cell targets within a complex ...
Nanotechnology / Bio & Medicine
Feb 16, 2012 |
5 / 5 (9) |
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New technique makes it easier to etch semiconductors
Creating semiconductor structures for high-end optoelectronic devices just got easier, thanks to University of Illinois researchers.
Dec 22, 2011 |
3.6 / 5 (5) |
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New glass stamp may make cheaper, more precise biosensors
Advances in microchip technology may someday enable clinicians to perform tests for hundreds of diseases -- sifting out specific molecules, such as early stage cancer cells -- from just one drop of blood. ...
Oct 19, 2011 |
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Trapping a rainbow: Researchers slow broadband light waves with nanoplasmonic structures
A team of electrical engineers and chemists at Lehigh University have experimentally verified the "rainbow" trapping effect, demonstrating that plasmonic structures can slow down light waves over a broad range of wavelengths.
Mar 14, 2011 |
4.5 / 5 (2) |
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Many cancer cells found to have an 'eat me' signal
Researchers at the Stanford University School of Medicine have discovered that many cancer cells carry the seeds of their own destruction — a protein on the cell surface that signals circulating immune cells to engulf ...
Dec 22, 2010 |
4.6 / 5 (8) |
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Engineering researchers simplify process to make world's tiniest wires
(PhysOrg.com) -- Surface tension isn't a very powerful force, but it matters for small things — water bugs, paint, and, it turns out, nanowires.
Jul 21, 2010 |
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For platinum catalysts, smaller may be better
When it comes to metal catalysts, the platinum standard is, well, platinum! However, at about $2,000 an ounce, platinum is more expensive than gold. The high cost of the raw material presents major challenges ...
Nanotechnology / Nanomaterials
Jun 28, 2010 |
4.2 / 5 (5) |
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Water may not run uphill, but it practically flies off new surface
(PhysOrg.com) -- Engineering researchers have crafted a flat surface that refuses to get wet. Water droplets skitter across it like ball bearings tossed on ice. The inspiration? Not wax. Not glass. Not even Teflon.
Feb 24, 2010 |
4.8 / 5 (30) |
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Going platinum: New catalyst could boost cleaner fuel use
(PhysOrg.com) -- Material scientists at Washington University in St. Louis have developed a technique for a bimetallic fuel cell catalyst that is efficient, robust and two to five times more effective than ...
Nanotechnology / Nanomaterials
May 14, 2009 |
4.1 / 5 (24) |
5
Scorpion venom with nanoparticles slows spread of brain cancer
By combining nanoparticles with a scorpion venom compound already being investigated for treating brain cancer, University of Washington researchers found they could cut the spread of cancerous cells by 98 ...
Nanotechnology / Bio & Medicine
Apr 16, 2009 |
4.6 / 5 (10) |
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Parasite breaks its own DNA to avoid detection
The parasite Trypanosoma brucei, which causes African sleeping sickness, is like a thief donning a disguise. Every time the host's immune cells get close to destroying the parasite, it escapes detection by rearranging its DN ...
Apr 15, 2009 |
5 / 5 (6) |
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Ancient diatoms lead to new technology for solar energy
Engineers at Oregon State University have discovered a way to use an ancient life form to create one of the newest technologies for solar energy, in systems that may be surprisingly simple to build compared to existing silicon-based ...
Nanotechnology / Nanomaterials
Apr 08, 2009 |
4.5 / 5 (13) |
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Self-cleaning, low-reflectivity treatment boosts efficiency for photovoltaic cells
Using two different types of chemical etching to create features at both the micron and nanometer size scales, researchers at the Georgia Institute of Technology have developed a surface treatment that boosts ...
Nanotechnology / Nanomaterials
Mar 24, 2009 |
4.4 / 5 (17) |
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Receptor (biochemistry)
In biochemistry, a receptor is a protein molecule, embedded in either the plasma membrane or cytoplasm of a cell, to which a mobile signaling (or "signal") molecule may attach. A molecule which binds to a receptor is called a "ligand," and may be a peptide (such as a neurotransmitter), a hormone, a pharmaceutical drug, or a toxin, and when such binding occurs, the receptor undergoes a conformational change which ordinarily initiates a cellular response. However, some ligands merely block receptors without inducing any response (e.g. antagonists). Ligand-induced changes in receptors result in physiological changes which constitute the biological activity of the ligands.
For more information about Receptor (biochemistry), read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
