Nanostructure
hideA 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.
News tagged with nanostructures
Nanoimaging in 3-D
Dec 01, 2009 |
4.9 / 5 (12) |
0
(PhysOrg.com) -- As technology shrinks ever smaller, interest in objects and devices on the nanoscale becomes more apparent. However, visualizing these objects in three dimensions comes with special challenges. ...
Search results for nanostructures
3-D system based on optical fiber could provide new options for photovoltaics
Nanotechnology / Nanomaterials
Nov 02, 2009 |
4.4 / 5 (10) |
0
Converting sunlight to electricity might no longer mean large panels of photovoltaic cells atop flat surfaces like roofs.
First metallic nanoparticles resistant to extreme heat
Nanotechnology / Nanomaterials
Nov 30, 2009 |
4.8 / 5 (4) |
0
A University of Pittsburgh team overcame a major hurdle plaguing the development of nanomaterials such as those that could lead to more efficient catalysts used to produce hydrogen and render car exhaust less toxic. The researchers ...
Air Force Center of Excellence awarded in nanostructures and improved cognition
Nanotechnology / Nanomaterials
Dec 01, 2009 |
not rated yet |
0
The Georgia Institute of Technology has been awarded a U.S. Air Force Center of Excellence to design nanostructures for energy harvesting and adaptive materials, and to develop tools to optimize critical cognitive ...
Highlight: Damping of acoustic vibrations in gold nanoparticles
Nov 19, 2009 |
4 / 5 (2) |
0
Vibrations in nanostructures offer applications in molecular-scale biological sensing and ultrasensitive mass detection. To approach single-atom sensing, it is necessary to reduce the dimensions of the structures ...
All decked out: Networks of chitin filaments are integral components of diatom silica shells
Dec 01, 2009 |
5 / 5 (1) |
0
(PhysOrg.com) -- A whole microcosm of various bizarrely shaped life forms opens up when you look at diatoms, the primary component of ocean plankton, under a microscope. The regularly structured silica shells of these tiny ...
Understanding mechanical properties of silicon nanowires paves way for nanodevices
Nanotechnology / Nanomaterials
Nov 11, 2009 |
3.3 / 5 (3) |
0
Silicon nanowires are attracting significant attention from the electronics industry due to the drive for ever-smaller electronic devices, from cell phones to computers. The operation of these future devices, ...
Nanostructured Integrated Circuit Detects Type and Severity of Cancer
Nanotechnology / Bio & Medicine
Nov 03, 2009 |
5 / 5 (3) |
0
(PhysOrg.com) -- A team of investigators from the University of Toronto have used nanomaterials to develop an inexpensive microchip sensitive enough to quickly determine the type and severity of a patient's cancer so that ...
New nano color sorters from Molecular Foundry
Nov 12, 2009 |
4.3 / 5 (4) |
0
Berkeley Lab researchers have engineered a new class of bowtie-shaped devices that capture, filter and steer light at the nanoscale. These "nano-colorsorter" devices act as antennae to focus and sort light ...
Commercialization of new solar technology to boost solar efficiency
Nov 09, 2009 |
4 / 5 (9) |
1
A pioneer in solar power in the 1990s before it became "sexy," University of Houston Professor Alex Freundlich recently entered into a collaborative research agreement with U.K.-based start-up QuantaSol for the development ...
Imaging a catalyst one atom at a time
Nanotechnology / Nanomaterials
Nov 09, 2009 |
5 / 5 (3) |
2
(PhysOrg.com) -- The catalytic processes that facilitate the production of many chemicals and fuels could become much more environmentally friendly thanks to a breakthrough achieved by researchers from Lehigh ...
List of search results for nanostructures
