Frontpage » Tag » nano

News tagged with nano

'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.

Nanotechnology / Nanophysics

created Feb 09, 2012 | popularity 4.8 / 5 (9) | comments 1 | with audio podcast

New kind of solar cell could capture significantly more energy than current cells

New solar cells could increase the maximum efficiency of solar panels by over 25%, according to scientists from the University of Cambridge.

Nanotechnology / Nanophysics

created Feb 08, 2012 | popularity 4.5 / 5 (12) | comments 14 | with audio podcast

Self-assembling nanorods: Researchers obtain 1-, 2- and 3-D nanorod arrays and networks

(PhysOrg.com) -- A relatively fast, easy and inexpensive technique for inducing nanorods - rod-shaped semiconductor nanocrystals - to self-assemble into one-, two- and even three-dimensional macroscopic structures ...

Nanotechnology / Nanomaterials

created Feb 01, 2012 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Engineers build first sub-10-nm carbon nanotube transistor

(PhysOrg.com) -- Engineers have built the first carbon nanotube (CNT) transistor with a channel length below 10 nm, a size that is considered a requirement for computing technology in the next decade. Not ...

Nanotechnology / Nanophysics

created Feb 01, 2012 | popularity 4.9 / 5 (31) | comments 30 | with audio podcast feature

Perfect nanotubes shine brightest

A painstaking study by Rice University has brought a wealth of new information about single-walled carbon nanotubes through analysis of their fluorescence.

Nanotechnology / Nanomaterials

created Jan 31, 2012 | popularity 4.6 / 5 (5) | comments 0 | with audio podcast

Nanotube-based terahertz polarizer nears perfection

(PhysOrg.com) -- Researchers at Rice University are using carbon nanotubes as the critical component of a robust terahertz polarizer that could accelerate the development of new security and communication ...

Nanotechnology / Nanophysics

created Jan 30, 2012 | popularity 4.7 / 5 (10) | comments 1 | with audio podcast

Biochip measures glucose in saliva, not blood

For the 26 million Americans with diabetes, drawing blood is the most prevalent way to check glucose levels. It is invasive and at least minimally painful. Researchers at Brown University are working on a ...

Nanotechnology / Nanophysics

created Jan 23, 2012 | popularity 4.5 / 5 (4) | comments 0 | with audio podcast

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

created Jan 21, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

In solar cells, tweaking the tiniest of parts yields big jump in efficiency

(PhysOrg.com) -- By tweaking the smallest of parts, a trio of University at Buffalo engineers is hoping to dramatically increase the amount of sunlight that solar cells convert into electricity.

Nanotechnology / Nanophysics

created Jan 20, 2012 | popularity 4.6 / 5 (11) | comments 27 | with audio podcast

Scientists design solar cells that exceed the conventional light-trapping limit

(PhysOrg.com) -- The best performing solar cells are those that are thick enough to absorb light from the entire solar spectrum, while the cheapest solar cells are thin ones, since they require less, and potentially ...

Nanotechnology / Nanophysics

created Jan 20, 2012 | popularity 4.7 / 5 (36) | comments 27 | with audio podcast feature

British team devises method for separating carbon nanotubes cheaply

(PhysOrg.com) -- When single walled carbon nanotubes (SWCNTs) are made, they come out in both metallic and semiconducting material form. Unfortunately, different applications require one or the other of these ...

Nanotechnology / Nanomaterials

created Jan 19, 2012 | popularity 5 / 5 (8) | comments 1 | with audio podcast report

New 'smart' nanotherapeutics can deliver drugs directly to the pancreas

A research collaboration between the Wyss Institute for Biologically Inspired Engineering at Harvard University and Children's Hospital Boston has developed "smart" injectable nanotherapeutics that can be programmed to selectively ...

Medicine & Health / Research

created Jan 12, 2012 | popularity not rated yet | comments 0 | with audio podcast

Optical nanoantennas enable efficient multipurpose particle manipulation

University of Illinois researchers have shown that by tuning the properties of laser light illuminating arrays of metal nanoantennas, these nano-scale structures allow for dexterous optical tweezing as well ...

Physics / General Physics

created Jan 12, 2012 | popularity 4.5 / 5 (2) | comments 1 | with audio podcast

Experiments prove nanoscale metallic conductivity in ferroelectrics

(PhysOrg.com) -- The prospect of electronics at the nanoscale may be even more promising with the first observation of metallic conductance in ferroelectric nanodomains by researchers at Oak Ridge National ...

Nanotechnology / Nanophysics

created Jan 09, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

The art of molecular carpet-weaving: 2-D networks from boron acids

Stable two-dimensional networks of organic molecules are important components in various nanotechnology processes. However, producing these networks, which are only one atom thick, in high quality and with ...

Nanotechnology / Nanophysics

created Dec 29, 2011 | popularity 4.7 / 5 (3) | comments 1 | with audio podcast

Nanotechnology

Nanotechnology (sometimes shortened to "nanotech") is the study of manipulating matter on an atomic and molecular scale. Generally, nanotechnology deals with developing materials, devices, or other structures possessing at least one dimension sized from 1 to 100 nanometres. Quantum mechanical effects are important at this quantum-realm scale.

Nanotechnology is very diverse, ranging from extensions of conventional device physics to completely new approaches based upon molecular self-assembly, from developing new materials with dimensions on the nanoscale to investigating whether we can directly control matter on the atomic scale. Nanotechnology entails the application of fields of science as diverse as surface science, organic chemistry, molecular biology, semiconductor physics, microfabrication, etc.

There is much debate on the future implications of nanotechnology. Nanotechnology may be able to create many new materials and devices with a vast range of applications, such as in medicine, electronics, biomaterials and energy production. On the other hand, nanotechnology raises many of the same issues as any new technology, including concerns about the toxicity and environmental impact of nanomaterials, and their potential effects on global economics, as well as speculation about various doomsday scenarios. These concerns have led to a debate among advocacy groups and governments on whether special regulation of nanotechnology is warranted.

For more information about Nanotechnology, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.