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Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News provides the latest news on nanotechnology, nanoscience, nanoelectronics, science and technology. Updated Daily.


Zero field switching (ZFS) effect in a nanomagnetic device

Fri, 16 Mar 2018 17:32:25 EDT

An unexpected phenomenon known as zero field switching (ZFS) could lead to smaller, lower-power memory and computing devices than presently possible. The image shows a layering of platinum (Pt), tungsten (W), and a cobalt-iron-boron magnet (CoFeB) sandwiched at the ends by gold (Au) electrodes on a silicon (Si) surface. The gray arrows depict the overall direction of electric current injected into the structure at the back of the gold (Au) contact and coming out the front gold contact pad.

Plasmons triggered in nanotube quantum wells

Fri, 16 Mar 2018 10:24:59 EDT

A novel quantum effect observed in a carbon nanotube film could lead to the development of unique lasers and other optoelectronic devices, according to scientists at Rice University and Tokyo Metropolitan University.

Imaging technique pulls plasmon data together

Fri, 16 Mar 2018 09:50:03 EDT

Rice University scientists have developed a novel technique to view a field of plasmonic nanoparticles simultaneously to learn how their differences change their reactivity.

Star-shaped nanoparticles that release their drug payload only after entering cells

Fri, 16 Mar 2018 09:49:34 EDT

A*STAR researchers have developed nanoscale drug delivery particles that can sense their surroundings, and release their payload only after entering a cell, a discovery that could make many existing medicines more effective.

Graphene oxide nanosheets could help bring lithium-metal batteries to market

Thu, 15 Mar 2018 17:43:36 EDT

Lithium-metal batteries—which can hold up to 10 times more charge than the lithium-ion batteries that currently power our phones, laptops and cars—haven't been commercialized because of a fatal flaw: as these batteries charge and discharge, lithium is deposited unevenly on the electrodes. This buildup cuts the lives of these batteries too short to make them viable, and more importantly, can cause the batteries to short-circuit and catch fire.

Graphene finds new application as non-toxic, anti-static hair dye

Thu, 15 Mar 2018 13:17:31 EDT

It's an issue that has plagued the beauty industry for more than a century: Dying hair too often can irreparably damage your silky strands.

Boron can form a purely honeycomb, graphene-like 2-D structure

Wed, 14 Mar 2018 10:35:23 EDT

Borophene is known to have triangular lattice with holes, while a honeycomb lattice of boron was predicted to be energetically unstable. However, a research team led by Prof. K. H. Wu at Institute of Physics, Chinese Academy of Sciences, successfully fabricated a pure graphene-like borophene by using an Al(111) surface as the substrate and molecular beam epitaxy in ultrahigh vacuum, providing an ideal platform for artificial boron-based materials with intriguing electronic properties such as Dirac states and superconductivity behavior.

Graphene flakes for future transistors

Wed, 14 Mar 2018 10:35:12 EDT

Graphene nanoflakes are promising for possible applications in the field of nanoelectronics, and the subject of a study recently published in Nano Letters. These hexagonal nanostructures exhibit quantum effects for modulating current flow. Thanks to their intrinsic magnetic properties, they could also represent a significant step forward in the field of spintronics. The study, conducted via computer analysis and simulations, was led by Massimo Capone.

Scientist develops hybrid nano-probe that can detect live cancer cells

Wed, 14 Mar 2018 08:27:57 EDT

Fabien Pinaud's big vision for treating cancer homes in on the smallest of targets.

Revolutionary new filter can improve drinking water quality

Wed, 14 Mar 2018 08:24:33 EDT

A world-first graphene-based filter that can remove more than 99 percent of the natural organic matter in treated drinking water is being scaled up for possible use in conventional plants.

For nanomedicine, cell sex matters

Wed, 14 Mar 2018 08:00:04 EDT

Important biological differences between men and women exist - right down to the cellular level. Investigators from Brigham and Women's Hospital and colleagues at Stanford University, McGill University and University of California, Berkeley wanted to determine if differences between male versus female cells may influence how well cells uptake nanoparticles - a key vehicle for imaging and targeted drug delivery applications. The team demonstrated that cell sex considerably influenced cellular uptake of nanoparticles and found that cells from men and women responded differently to reprogramming techniques used to enhance the ability of the cells to differentiate into a greater variety of cell types. Their results, published this week in ACS Nano, may help researchers more safely and effectively produce nanomedicines that take sex into account.

Nanospears deliver genetic material to cells with pinpoint accuracy

Wed, 14 Mar 2018 08:00:01 EDT

UCLA scientists have developed a new method that utilizes microscopic splinter-like structures called "nanospears" for the targeted delivery of biomolecules such as genes straight to patient cells. These magnetically guided nanostructures could enable gene therapies that are safer, faster and more cost-effective.

'Quantum dot' lighting technology takes forward leap thanks to new superacid treatment

Tue, 13 Mar 2018 08:14:51 EDT

A "superacid" much stronger than automobile battery acid has enabled a key advance toward a new generation of LED lighting that's safer, less expensive and more user friendly.

Magnetism has the pull to transform our digital lives

Tue, 13 Mar 2018 08:13:55 EDT

Digital memory and security could be transformed according to new research, which has for the first time showed that antiferromagnets can be easily controlled and read by switching the direction of ordinary electrical currents at super-fast speed.

How to build a better railway—in (almost) every cell in your body

Mon, 12 Mar 2018 17:45:18 EDT

New work from the University of Warwick shows how a microscopic 'railway' system in our cells can optimise its structure to better suit bodies' needs.

Polymer nanoparticle shows ability to locate and treat breast tumors

Mon, 12 Mar 2018 17:33:08 EDT

One major problem in treating cancer is identifying the location of small tumors and treating them before they metastasize.

Method to grow large single-crystal graphene could advance scalable 2-D materials

Mon, 12 Mar 2018 12:00:10 EDT

A new method to produce large, monolayer single-crystal-like graphene films more than a foot long relies on harnessing a "survival of the fittest" competition among crystals. The novel technique, developed by a team led by the Department of Energy's Oak Ridge National Laboratory, may open new opportunities for growing the high-quality two-dimensional materials necessary for long-awaited practical applications.

'Sweet spot' in sweet material for hydrogen storage

Mon, 12 Mar 2018 09:26:45 EDT

Rice University engineers have zeroed in on the optimal architecture for storing hydrogen in "white graphene" nanomaterials—a design like a Lilliputian skyscraper with "floors" of boron nitride sitting one atop another and held precisely 5.2 angstroms apart by boron nitride pillars.

Flat gallium joins roster of new 2-D materials

Fri, 09 Mar 2018 15:24:46 EDT

Scientists at Rice University and the Indian Institute of Science, Bangalore, have discovered a method to make atomically flat gallium that shows promise for nanoscale electronics.

Abright idea for on-demand nanopatterns

Fri, 09 Mar 2018 09:00:01 EDT

Focused electron beams can simultaneously synthesize optically active nanocrystals and pattern them into intricate surface arrays

Flower-shaped gold nanocrystals as photothermal agents against tumor cells

Fri, 09 Mar 2018 08:26:20 EDT

Gold nanoflowers grown in starfruit juice are promising agents for photothermal cancer therapy. When injected into a tumor and irradiated with near-infrared laser light, the nanoflowers heat up and kill the cancer cells around them.

Nanostructures made of previously impossible material

Fri, 09 Mar 2018 07:20:02 EDT

Materials scientists often seek to change the physical properties of a material by adding a certain proportion of an additional element; however, it isn't always possible to incorporate the desired quantity into the crystal structure of the material. At TU Wien, a new method has been developed to produce previously unattainable mixtures of germanium and other atoms. This results in new materials with significantly altered properties.

Simulation and experiment help researchers study next-generation semiconductors

Fri, 09 Mar 2018 07:20:01 EDT

Semiconductors, a class of materials that can function as both electrical conductor and insulator depending on the circumstances, are fundamental to modern electronics. Silicon is the most widely used semiconductor, but in recent years, researchers have studied a greater range of materials, including molecules that can be tailored to serve specific electronic needs.

Researchers develop a new class of two-dimensional materials

Fri, 09 Mar 2018 02:24:33 EDT

A research team led by UCLA scientists and engineers has developed a method to make new kinds of artificial "superlattices"—materials comprised of alternating layers of ultra-thin "two-dimensional" sheets, which are only one or a few atoms thick. Unlike current state-of-the art superlattices, in which alternating layers have similar atomic structures, and thus similar electronic properties, these alternating layers can have radically different structures, properties and functions, something not previously available.

Researchers sew atomic lattices seamlessly together

Thu, 08 Mar 2018 14:00:12 EDT

Joining different kinds of materials can lead to all kinds of breakthroughs. It's an essential skill that allowed humans to make everything from skyscrapers (by reinforcing concrete with steel) to solar cells (by layering materials to herd electrons).

Big steps toward control of production of tiny building blocks

Thu, 08 Mar 2018 09:51:15 EDT

Nanoparticles, superstrong and flexible structures such as carbon nanotubes that are measured in billionths of a meter—a diameter thousands of times thinner than a human hair—are used in everything from microchips to sporting goods to pharmaceutical products. But large-scale production of high-quality particles faces challenges ranging from improving the selectivity of the synthesis that creates them and the quality of the synthesized material to the development of economical and reliable synthesis processes.

Energy harvester collects energy from sunlight and raindrops

Thu, 08 Mar 2018 09:40:02 EDT

By attaching a transparent nanogenerator to a silicon solar cell, researchers have designed a device that harvests solar energy in sunny conditions and the mechanical energy of falling raindrops in rainy conditions. The dual functionality may provide a way to harvest energy with greater consistency in the midst of constantly changing weather conditions.

Researchers invent nano-drops that improve nearsightedness and farsightedness

Thu, 08 Mar 2018 07:29:03 EDT

A revolutionary, cutting-edge technology, developed by researchers at Bar-Ilan University's Institute of Nanotechnology and Advanced Materials (BINA), has the potential to provide a new alternative to eyeglasses, contact lenses, and laser correction for refractive errors.

Researcher makes bold move by releasing nanotech 'recipe'

Wed, 07 Mar 2018 17:04:43 EDT

In a rare move, a Houston Methodist researcher is sharing his recipe for a new, more affordable way to make nanoparticles. This will empower any laboratory in the world to easily create similar nanoparticles and could lead to a whole new way of delivering biotherapeutic drugs and do it more quickly.

Super sniffer: Dog's nose inspires new gas sensor materials

Wed, 07 Mar 2018 12:45:35 EDT

It is well known that dogs have a better sense of smell than humans. For years, researchers have been trying to develop an artificial detector that is just as good as a canine's nose. Now, one group reports in ACS Nano that they were able to mimic a dog's sniffer with graphene-based nanoscrolls.