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Tartalom átvétel ScienceDaily: Nanotechnology News
Nanotechnology news. From nanoscience to nanotechnology applications such as nanotechnology in medicine, read the latest news from leading research institutes.
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Energy harvesting: Nanogenerators grow strong enough to power small conventional electronic devices

k, 11/09/2010 - 17:00
Researchers have reached a significant milestone in their development of nanometer-scale generators that harvest mechanical energy from the environment using an array of tiny nanowires: the ability to power conventional electronic devices such as liquid-crystal displays.

Easy fabrication of non-reflecting and self-cleaning silicon and plastic surfaces

k, 11/09/2010 - 11:00
Scientists specializing in microfabrication and microfludics have developed a new and rapid method for fabrication of non-reflecting and self-cleaning surfaces. Surface properties are based on the nanostructured surface.

Nanoparticles' journey from lungs into body chronicled: Insights into pulmonary drug delivery, air pollution control

k, 11/09/2010 - 05:00
Using a novel, real-time imaging system, scientists have tracked a group of near-infrared fluorescent nanoparticles from the airspaces of the lungs, into the body and out again, providing a description of the characteristics and behavior of these minute particles which could be used in developing therapeutic agents to treat pulmonary disease, as well as offering a greater understanding of the health effects of air pollution.

New propulsion method developed for metallic micro- and nano-objects

h, 11/08/2010 - 02:00
A new propulsion method for metallic micro- and nano-objects has been developed. The process is based on the novel concept of bipolar electrochemistry: under the influence of an electric field, one end of a metallic object grows while the other end dissolves. Thanks to this permanent self-regeneration, objects can move at speeds of the order of a hundred micrometers per second. This work could find applications in fields ranging from nanomedicine to micromechanics.

'Nano-drug' hits brain-tumor target: Unique triggering device delivers antitumor drugs

v, 11/07/2010 - 01:00
Employing new drug-engineering technology that is part of an advanced science called nanomedicine, a research team has created a "nanobioconjugate" drug that may be given by intravenous injection and carried in the blood to target the brain tumor. It is engineered to specifically permeate the tumor cell wall, entering endosomes, mobile compartments within cells.

Nanoshells provide golden 'touch' in killing breast tumors

szo, 11/06/2010 - 01:00
Using tiny gold "nanoshells" to deliver just a little heat to breast tumor cells already treated with radiation boosts the killing potential of the treatment -- not just shrinking the tumor but killing the cancer stem cells, said researchers.

Colonic navigation: Nanotechnology helps deliver drugs to intestinal target

p, 11/05/2010 - 16:00
Nanoparticles help smuggle drugs into the gut, according to a new study. There are several drugs that would have more beneficial therapeutic effects if they could be targeted at absorption by the lower intestine.

New approaches needed to gauge safety of nanotech-based pesticides, researchers urge

sze, 11/03/2010 - 19:00
Nanotechnology is about to emerge in the world of pesticides and pest control, and a range of new approaches are needed to understand the implications for public health, ensure that this is done safely, maximize the potential benefits and prevent possible risks, researchers say in a new report.

Cancer drug linked to quantum dots increases drug uptake, reduces inflammation

sze, 11/03/2010 - 13:00
Researchers have developed a novel technology using quantum dots that is expected to have major implications for research and treatment of tuberculosis, as well as other inflammatory lung diseases.

Meta-flex: Your new brand for invisibility clothing

sze, 11/03/2010 - 05:00
Flexible smart materials that can manipulate light to shield objects from view have been much-theorized but now researchers in Scotland have made a practical breakthrough that brings the possibility of an invisibility cardigan -- or any other item of invisibility clothing -- one step closer.

Radically simple technique developed to grow conducting polymer thin films

k, 11/02/2010 - 19:00
Oil and water don't mix, but add in some nanofibers and all bets are off. A team of chemists and engineers has developed a new method for coating large surfaces with nanofiber thin films that are both transparent and electrically conductive. Their method involves the vigorous agitation of water, dense oil, and polymer nanofibers. After this solution is sufficiently agitated it spreads over virtually any surface, creating a thin film.

Pivoting hooks of graphene’s chemical cousin could revolutionize work of electron microscopes

k, 11/02/2010 - 10:00
The single layer material graphene was the subject of a Nobel prize this year, and now scientists have found molecular hooks on the surface of its close chemical cousin, graphene oxide, that could provide massive benefits to researchers using transmission electron microscopes. These hooks could even be used in building molecular scale mechanisms.

Microreactor speeds nanotech particle production by 500 times

h, 11/01/2010 - 22:00
Engineers have discovered a new method to speed the production rate of nanoparticles by 500 times, an advance that could play an important role in making nanotechnology products more commercially practical.

Triple-mode transistors show potential: Researchers introduce graphene-based amplifiers

h, 11/01/2010 - 19:00
Research that capitalizes on the wide-ranging capabilities of graphene could lead to circuit applications that are far more compact and versatile than what is now feasible with silicon-based technologies.