News tagged with nanostructures
New nanostructure for batteries keeps going and going
(Phys.org) -- For more than a decade, scientists have tried to improve lithium-based batteries by replacing the graphite in one terminal with silicon, which can store 10 times more charge. But after just a ...
May 11, 2012 |
4.8 / 5 (67) |
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Scientists Create Material More Insulating than the Vacuum
(PhysOrg.com) -- With its complete lack of atoms, a vacuum is often considered to be the best known insulator. For this reason, vacuums are regularly used to reduce heat transfer, such as in the lining of ...
Dec 10, 2009 |
4.6 / 5 (58) |
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Regular Light Bulbs Made Super-Efficient with Ultra-Fast Laser
(PhysOrg.com) -- An ultra-powerful laser can turn regular incandescent light bulbs into power-sippers, say optics researchers at the University of Rochester. The process could make a light as bright as a 100-watt ...
May 29, 2009 |
4.4 / 5 (42) |
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Researchers produce world's first programmable nanoprocessor
Engineers and scientists collaborating at Harvard University and the MITRE Corporation have developed and demonstrated the world's first programmable nanoprocessor.
Feb 09, 2011 |
4.8 / 5 (36) |
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DNA could be backbone of next generation logic chips
(PhysOrg.com) -- In a single day, a solitary grad student at a lab bench can produce more simple logic circuits than the world's entire output of silicon chips in a month.
Nanotechnology / Bio & Medicine
May 11, 2010 |
4.9 / 5 (33) |
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New OLETs emit light more efficiently than equivalent OLEDs
(PhysOrg.com) -- Already, organic light-emitting diodes (OLEDs) are becoming commercialized for light display applications due to their advantages such as low fabrication costs and large-area emission. But ...
Nanotechnology / Nanomaterials
May 31, 2010 |
4.9 / 5 (33) |
8
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Scientists Strive to Replace Silicon with Graphene on Nanocircuitry
(PhysOrg.com) -- Scientists have made a breakthrough toward creating nanocircuitry on graphene, widely regarded as the most promising candidate to replace silicon as the building block of transistors. They ...
Nanotechnology / Nanomaterials
Jun 10, 2010 |
4.8 / 5 (32) |
18
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New super strong alloy discovered
(PhysOrg.com) -- International team of researchers has discovered a new super-strength light alloy and had their key findings published in Nature Communications.
Nanotechnology / Nanomaterials
Sep 08, 2010 |
3.4 / 5 (41) |
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Scientists solve decade-long mystery of nanopillar formations
Scientists at the California Institute of Technology have uncovered the physical mechanism by which arrays of nanoscale pillars can be grown on polymer films with very high precision, in potentially limitless ...
Oct 22, 2009 |
4.9 / 5 (24) |
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Nano-sized light mill drives micro-sized disk (w/ Video)
While those wonderful light sabers in the Star Wars films remain the figment of George Lucas' fertile imagination, light mills - rotary motors driven by light - that can power objects thousands of times greater ...
Jul 05, 2010 |
4.7 / 5 (25) |
8
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Batteries charge quickly and retain capacity, thanks to new 3D nanostructure
The batteries in Illinois professor Paul Braun's lab look like any others, but they pack a surprise inside.
Nanotechnology / Nanomaterials
Mar 20, 2011 |
4.8 / 5 (23) |
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Breakthrough in converting heat waste to electricity
(PhysOrg.com) -- Researchers at Northwestern University have placed nanocrystals of rock salt into lead telluride, creating a material that can harness electricity from heat-generating items such as vehicle exhaust systems, ...
Jan 18, 2011 |
4.7 / 5 (23) |
18
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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) |
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Experimental explanation of supercooling: Why water does not freeze in the clouds (w/ Video)
Supercooling, a state where liquids do not solidify even below their normal freezing point, still puzzles scientists today. A good example of this phenomenon is found everyday in meteorology: clouds in high ...
Apr 21, 2010 |
4.6 / 5 (20) |
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Graphene's shining light could lead to super-fast Internet
Internet connection speeds could be tens of times faster than they currently are, thanks to research by University of Manchester scientists using wonder material graphene.
Nanotechnology / Nanomaterials
Aug 30, 2011 |
4.8 / 5 (19) |
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Nanostructure
A nanostructure is an object of intermediate size between molecular and microscopic (micrometer-sized) structures.
In describing nanostructures it is necessary to differentiate between the number of dimensions on the nanoscale. Nanotextured surfaces have one dimension on the nanoscale, i.e., only the thickness of the surface of an object is between 0.1 and 100 nm. Nanotubes have two dimensions on the nanoscale, i.e., the diameter of the tube is between 0.1 and 100 nm; its length could be much greater. Finally, spherical nanoparticles have three dimensions on the nanoscale, i.e., the particle is between 0.1 and 100 nm in each spatial dimension. The terms nanoparticles and ultrafine particles (UFP) often are used synonymously although UFP can reach into the micrometre range.
For more information about Nanostructure, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
