News tagged with nanostructure
What lies beneath: Mapping hidden nanostructures
The ability to diagnose and predict the properties of materials is vital, particularly in the expanding field of nanotechnology. Electron and atom-probe microscopy can categorize atoms in thin sheets of material, ...
Feb 10, 2012 |
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Blunt nanostructures could make high-efficiency solar cells easier to fabricate
(PhysOrg.com) -- One of the most promising methods for increasing the efficiency of solar cells consists of coating the cells’ surfaces with a thin layer of metal nanoparticles. The nanoparticles scatter ...
Jan 24, 2012 |
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DNA as invisible ink can reversibly hide patterns
(PhysOrg.com) -- While most people know of DNA as the building blocks of life, these large molecules also have potential applications in areas such as biosensing, nanoparticle assembly, and building supramolecular ...
Nanotechnology / Bio & Medicine
Jan 23, 2012 |
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Magnetic actuation enables nanoscale thermal analysis
Polymer nano-films and nano-composites are used in a wide variety of applications from food packaging to sports equipment to automotive and aerospace applications. Thermal analysis is routinely used to analyze ...
Jan 12, 2012 |
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Peering into the interfaces of nanoscale polymeric materials
(PhysOrg.com) -- The development of polymer nanostructures and nanoscale devices for a wide variety of applications could emerge from new information about the interplay between nanoscale interfaces in polymeric ...
Jan 09, 2012 |
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3-D view of 1-D nanostructures
Semiconductor gallium nitride nanowires show great promise in the next generation of nano- and optoelectronic systems. Recently, researchers at the McCormick School of Engineering have found new piezoelectric ...
Jan 06, 2012 |
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Plasmonic nanocrosses that heat up when illuminated can be used to kill cancer
Plasmonic nanoparticles are extremely sensitive to light, and even the tiniest amount can cause these particles to heat up. Scientists are now trying to use plasmonic nanoparticles in cancer therapy whereby ...
Nanotechnology / Bio & Medicine
Dec 23, 2011 |
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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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How to build doughnuts with Lego blocks
Scientists have uncovered how nature minimises energy costs in rings of liquids with an internal nanostructure made of two chemically discordant polymers joined with strong bonds, or di-blocks, deposited on ...
Dec 21, 2011 |
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Monitoring the transformation of silver nanowires into gold nanotubes with in situ transmission X-ray microscopy
(PhysOrg.com) -- A technique for real-time monitoring of the galvanic replacement reaction between silver nanowires and aqueous gold salt solutions using in situ flow-cell transmission X-ray microscopy (TXM) ...
Dec 21, 2011 |
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Scientists create a functional model of the extracellular matrix
Scientists at the National Physical Laboratory (NPL) have created a functional model of the native extracellular matrix that provides structural support to cells to aid growth and proliferation. The model could lead to advances ...
Dec 20, 2011 |
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The extracellular matrix
NPL scientists have created a functional model of the native extracellular matrix which provides structural support to cells to aid growth and proliferation and could lead to advances in regenerative medicine.
Dec 12, 2011 |
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International collaboration reveals magnetization textures in NiPd nanostructures
(PhysOrg.com) -- An international collaboration led by the NIST Center for Nanoscale Science and Technology has used scanning electron microscopy with polarization analysis (SEMPA) to acquire images ...
Dec 08, 2011 |
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Cobblestones fool innate immunity
Coating the surface of an implant such as a new hip or pacemaker with nanosized metallic particles reduces the risk of rejection, and researchers at the University of Gothenburg, Sweden, can now explain why: they fool the ...
Nanotechnology / Bio & Medicine
Nov 29, 2011 |
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Butterfly wings inspire design of water-repellent surface
Researchers mimic the many-layered nanostructure of blue mountain swallowtail wings to make a silicon wafer that traps both air and light.
Nanotechnology / Nanomaterials
Nov 21, 2011 |
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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.
