News tagged with nanorods
Bright lights of purity: Researchers discover why pure quantum dots and nanorods shine brighter
To the lengthy list of serendipitous discoveries – gravity, penicillin, the New World – add this: Scientists with the Lawrence Berkeley National Laboratory (Berkeley Lab) have discovered why a promising ...
Nanotechnology / Nanomaterials
Jan 30, 2012 |
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New pretreatment process delivers biocompatible, stable gold nanorods for tumor treatment
(PhysOrg.com) -- Gold isn’t just lovely in jewelry; it has long been used as medicine. Modern medicine is particularly focused on nanoscopic gold, which can be used as a contrast agent and in the treatment ...
Nanotechnology / Bio & Medicine
Dec 13, 2011 |
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Tagging tumors with gold: Scientists use gold nanorods to flag brain tumors
"It's not brain surgery" is a phrase often uttered to dismiss a job's difficulty, but when the task actually is removing a brain tumor, even the slightest mistake could have serious health consequences. To ...
Nanotechnology / Bio & Medicine
Oct 12, 2011 |
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Nanorods made of fullerenes improve performance of polymer solar cells
The biggest obstacle to making use of solar energy has been the excessively high price of solar cells made of inorganic semiconductors. In contrast, solar cells based on semiconducting polymers are affordable, ...
Nanotechnology / Nanomaterials
Sep 16, 2011 |
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Nano-LEDs emit full visible spectrum of light
(PhysOrg.com) -- Physicists from Taiwan have designed and fabricated nano-sized light-emitting diodes (LEDs) that emit light spanning the entire visible spectrum. Although the tiny full-color LEDs aren't intended ...
Jun 17, 2011 |
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High efficiency infrared photodetectors using gold nanorods
Toyohashi Tech researchers develop an innovative infrared photodetector exploiting ‘plasmon resonance’ at the surface of gold nanorods. This technology shows potential as the basis for the development ...
Mar 25, 2011 |
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Nanorods could greatly improve visual display of information (w/ Video)
Chemists at the University of California, Riverside have developed tiny, nanoscale-size rods of iron oxide particles in the lab that respond to an external magnetic field in a way that could dramatically improve ...
Nanotechnology / Nanomaterials
Mar 14, 2011 |
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In Brief: Ultrafast transparency in a plasmonic nanorod
Users from the University of North Florida and King's College London collaborated with Argonne scientists in the Nanophotonics Group to show that closely spaced plasmonic gold nanorods produce an ultrafast ...
Jan 25, 2011 |
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A forest of nanorods: Amazing nanostructures created by glancing-angle deposition
Just as landscape photographs shot in low-angle light dramatically accentuate subtle swales and mounds, depositing metal vapors at glancing angles turns a rough surface into amazing nanostructures with a vast range of potential ...
Oct 20, 2010 |
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To Attack H1N1, Other Flu Viruses, Gold Nanorods Deliver Potent Payload
(PhysOrg.com) -- Future pandemics of seasonal flu, H1N1 and other drug-resistant viruses may be thwarted by a potent, immune-boosting payload that is effectively delivered to cells by gold nanorods, report ...
Nanotechnology / Bio & Medicine
May 24, 2010 |
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Light-Driven Nanorod Could Roll on Water
(PhysOrg.com) -- In a recent study, researchers have examined the possibility of rolling a nanorod on the surface of water. On the macroscale, perhaps the closest analogy might be the sport of logrolling, ...
Dec 18, 2009 |
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No small measure: Origins of nanorod diameter discovered
(PhysOrg.com) -- A new study answers a key question at the very heart of nanotechnology: Why are nanorods so small?
Mar 19, 2009 |
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Slimmer Nanorods Good Fit for Next-Gen 3-D Computer Chips
Researchers at Rensselaer Polytechnic Institute have developed a new technique for growing slimmer copper nanorods, a key step for advancing integrated 3-D chip technology.
Mar 17, 2009 |
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Nanorod
In nanotechnology, nanorods are one morphology of nanoscale objects. Each of their dimensions range from 1–100 nm. They may be synthesized from metals or semiconducting materials. Standard aspect ratios (length divided by width) are 3-5. Nanorods are produced by direct chemical synthesis. A combination of ligands act as shape control agents and bond to different facets of the nanorod with different strengths. This allows different faces of the nanorod to grow at different rates, producing an elongated object.
The applications of nanorods are diverse, ranging from display technologies (the reflectivity of the rods can be changed by changing their orientation with an applied electric field) to microelectromechanical systems (MEMS).
Nanorods based on semiconducting materials have also been investigated for application as energy harvesting and light emitting devices. In 2006, Ramanathan et. al. demonstrated1 electric-field mediated tunable photoluminescence from ZnO nanorods, with potential for application as novel sources of near-ultraviolet radiation.
For more information about Nanorod, read the full article at
Wikipedia.
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