News tagged with cell surface
Novel holographic antenna designs and uses
Holographic antennas first studied around 40 years ago are again a hot topic given the potential of holographic images for a variety of applications. EU researchers developed novel prototype devices based ...
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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 |
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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 |
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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 |
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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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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 |
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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 |
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Researchers develop a path to liquid solar cells that can be printed onto surfaces
Scientists at USC have developed a potential pathway to cheap, stable solar cells made from nanocrystals so small they can exist as a liquid ink and be painted or printed onto clear surfaces.
Nanotechnology / Nanomaterials
Apr 25, 2012 |
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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 |
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'Bed-of-nails' breast implant deters cancer cells
One in eight women in the United States will develop breast cancer. Of those, many will undergo surgery to remove the tumor and will require some kind of breast reconstruction afterward, often involving implants. ...
Nanotechnology / Bio & Medicine
Mar 23, 2012 |
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New plastics 'bleed' when cut or scratched — and then heal like human skin
A new genre of plastics that mimic the human skin's ability to heal scratches and cuts offers the promise of endowing cell phones, laptops, cars and other products with self-repairing surfaces, scientists reported today. ...
Mar 26, 2012 |
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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 |
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Nanotechnology researchers develop new strategy to deliver chemotherapy to prostate cancer cells
Honing chemotherapy delivery to cancer cells is a challenge for many researchers. Getting the cancer cells to take the chemotherapy "bait" is a greater challenge. But perhaps such a challenge has not been met with greater ...
Nanotechnology / Bio & Medicine
Jan 09, 2012 |
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Quantum dots provide quantitative profile of pancreatic cancer biomarkers on single cells
(Phys.org) -- With the aid of a novel set of lipid-coated, targeted quantum dots, researchers at Johns Hopkins University have developed a method for quantifying multiple specific biomarkers on the surfaces of individual ...
Nanotechnology / Bio & Medicine
Apr 06, 2012 |
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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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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.
