News tagged with nanoparticles
'Dark plasmons' transmit energy
Microscopic channels of gold nanoparticles have the ability to transmit electromagnetic energy that starts as light and propagates via "dark plasmons," according to researchers at Rice University.
17 hours ago |
5 / 5 (5) |
0
|
Australians risking skin cancer to avoid nanoparticles
More than three in five Australians are concerned enough about the health implications of nanoparticles in sunscreens to want to know more about their impact. And while the initial scientific information released suggests ...
Nanotechnology / Bio & Medicine
Feb 09, 2012 |
5 / 5 (1) |
0
PolyU scientist finds novel use of African mushroom in cancer research
A young scientist from The Hong Kong Polytechnic University (PolyU)'s Food Safety and Technology Research Centre (FSTRC) has successfully prepared highly stable selenium nanoparticles by using the polysaccharide-protein ...
Feb 07, 2012 |
5 / 5 (1) |
0
Nanoparticles used to increase thermal properties of transformer oil
Rice University scientists have created a nano-infused oil that could greatly enhance the ability of devices as large as electrical transformers and as small as microelectronic components to shed excess heat.
Nanotechnology / Nanomaterials
Feb 01, 2012 |
4.8 / 5 (4) |
2
|
Disappearing gold a boon for nanolattices
(PhysOrg.com) -- When gold vanishes from a very important location, it usually means trouble. At the nanoscale, however, it could provide more knowledge about certain types of materials. A recent discovery ...
Jan 30, 2012 |
5 / 5 (4) |
0
|
Chaos puts a path on nanoparticles
At just over seven feet tall, Shaquille O’Neal is easy to spot in crowd. But the individual virus structures that give him, and us, a cold aren’t so easy to see.
Jan 27, 2012 |
4.7 / 5 (10) |
1
MSU technology spin-out company to market portable biohazard detection
A new company formed around Michigan State University nanotechnology promises to move speedy detection of deadly pathogens and toxins from the laboratory directly to the field.
Chemistry / Analytical Chemistry
Jan 27, 2012 |
5 / 5 (1) |
0
Hacking the SEM: Crystal phase detection for nanoscale samples
(PhysOrg.com) -- Custom modifications of equipment are an honored tradition of the research lab. In a recent paper, two materials scientists at the National Institute of Standards and Technology describe how ...
Jan 25, 2012 |
5 / 5 (2) |
0
|
Nano form of titanium dioxide can be toxic to marine organisms
The Bren School-based authors of a study published Jan. 20 in the journal PLoS ONE have observed toxicity to marine organisms resulting from exposure to a nanoparticle that had not previously been shown to be toxic under ...
Nanotechnology / Bio & Medicine
Jan 24, 2012 |
5 / 5 (2) |
0
|
Vaccines to boost immunity where it counts, not just near shot site
Researchers at Duke University Medical Center have created synthetic nanoparticles that target lymph nodes and greatly boost vaccine responses, said lead author Ashley St. John, Ph.D., a researcher at Duke-NUS Graduate Medical ...
Nanotechnology / Bio & Medicine
Jan 22, 2012 |
3.7 / 5 (3) |
0
|
PRINTed nanoparticles deliver multiple punches to treat prostate cancer
Using technologies common to the semiconductor industry, a team of investigators at the University of North Carolina at Chapel Hill and Liquidia Technologies has created a polymer nanoparticle that can encapsulate large loads ...
Nanotechnology / Bio & Medicine
Jan 21, 2012 |
5 / 5 (2) |
0
|
Bismuth nanoparticles provide high fidelity images of breast tumors
By combining a nanoparticle that is readily visible in X-ray computed tomography (CT) scans with a molecule that targets tumor lymph vessels and other tumor tissues, a research team from the University of California, San ...
Nanotechnology / Bio & Medicine
Jan 20, 2012 |
5 / 5 (1) |
0
Overcoming cancer drug resistance with nanoparticles
One of the ways in which cancer cells evade anticancer therapy is by producing a protein that pumps drugs out of the cell before these compounds can exert their cell-killing effects. A research team at Northwestern University ...
Nanotechnology / Bio & Medicine
Jan 20, 2012 |
5 / 5 (2) |
0
|
Biocompatible quantum dot images tumors in live animals
Quantum dots, small semiconductor nanoparticles that fluoresce brightly with sharply defined colors, have tremendous promise as biomedical imaging agents except for one problem—most are made from potentially hazardous ...
Nanotechnology / Bio & Medicine
Jan 20, 2012 |
4 / 5 (4) |
0
|
Researchers refine nanoparticles for more accurate delivery of cancer drugs
A new class of nanoparticles, synthesized by a UC Davis research team to prevent premature drug release, holds promise for greater accuracy and effectiveness in delivering cancer drugs to tumors. The work is published online ...
Nanotechnology / Bio & Medicine
Jan 19, 2012 |
5 / 5 (1) |
0
|
Nanoparticle
In nanotechnology, a particle is defined as a small object that behaves as a whole unit in terms of its transport and properties. It is further classified according to size: In terms of diameter, fine particles cover a range between 100 and 2500 nanometers, while ultrafine particles, on the other hand, are sized between 1 and 100 nanometers. Similarly to ultrafine particles, nanoparticles are sized between 1 and 100 nanometers, though the size limitation can be restricted to two dimensions. Nanoparticles may or may not exhibit size-related properties that differ significantly from those observed in fine particles or bulk materials .
Nanoclusters have at least one dimension between 1 and 10 nanometers and a narrow size distribution. Nanopowders are agglomerates of ultrafine particles, nanoparticles, or nanoclusters. Nanometer sized single crystals, or single-domain ultrafine particles, are often referred to as nanocrystals. Nanoparticle research is currently an area of intense scientific research, due to a wide variety of potential applications in biomedical, optical, and electronic fields. The National Nanotechnology Initiative has led to generous public funding for nanoparticle research in the United States.
For more information about Nanoparticle, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
