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Electron tomography technique leads to 3-D reconstructions at the nanoscale

ScienceDaily.com: Nanotechnology News - Thu, 05/24/2018 - 00:01
Scientists recently found a way to harness the power of TEM to measure the structure of a material at the highest possible resolution -- determining the 3-D position of every individual atom.
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Supertetrahedra Lego for future batteries

NanoWerk.com - Wed, 05/23/2018 - 22:08
New sodium-based all-solid-state batteries could enable future energy storage devices using only the easy-to-access, cheap and earth abundant elements sodium, silicon and phosphorous (Na, Si and P). By shaping them into sodium phosphidosilicates containing large supertetrahedral entities, scientists generated solid electrolytes with very high ionic conductivity.

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Universal pH regulated assembly of DNA nanostructures

NanoWerk.com - Wed, 05/23/2018 - 22:01
Scientists have introduced a new strategy for control through altering pH value. It is based on ethylenediamine, which only supports the assembly of DNA components in a neutral to acidic environment - independent of the base sequences and without metal ions.

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Preserving a painter's legacy with nanomaterials

NanoWerk.com - Wed, 05/23/2018 - 21:55
In an effort to combat the aging process of paintings, researchers are reporting that nanomaterials can provide multiple layers of reinforcement.

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Change the face of nanoparticles and you'll rule chemistry

NanoWerk.com - Wed, 05/23/2018 - 21:54
Depending on the lighting, the surface of appropriately crafted nanoparticles can change its topography. Researchers have shown that the molecular mechanism they have designed makes it possible, by the use of light, to effectively uncover or hide catalyst molecules. The technique they present leads to qualitatively new possibilities to control the course of chemical reactions.

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Researchers squeeze light into nanoscale devices and circuits

NanoWerk.com - Wed, 05/23/2018 - 21:48
Team is first to directly image propagation and dynamics of graphene plasmons at very low temperatures; findings could impact optical communications and signal processing.

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Controlled nano-assembly

ScienceDaily.com: Nanotechnology News - Wed, 05/23/2018 - 21:33
DNA, the carrier of genetic information, has become established as a highly useful building material in nanotechnology. One requirement in many applications is the controlled, switchable assembly of nanostructures. Scientists have now introduced a new strategy for control through altering pH value. It is based on ethylenediamine, which only supports the assembly of DNA components in a neutral to acidic environment -- independent of the base sequences and without metal ions.
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Making massive leaps in electronics at nano-scale

ScienceDaily.com: Nanotechnology News - Wed, 05/23/2018 - 21:33
By chemically attaching nano-particles of the rare earth element, gadolinium, to carbon nanotubes, the researchers have found that the electrical conductivity in the nanotubes can be increased by incorporating the spin properties of the gadolinium which arises from its magnetic nature.
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Understanding light-induced electrical current in atomically thin nanomaterials

ScienceDaily.com: Nanotechnology News - Wed, 05/23/2018 - 21:33
Scientists demonstrated that scanning photocurrent microscopy could provide the optoelectronic information needed to improve the performance of devices for power generation, communications, data storage, and lighting.
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Preserving a painter's legacy with nanomaterials

ScienceDaily.com: Nanotechnology News - Wed, 05/23/2018 - 21:32
Paintings by Vincent van Gogh, Pablo Picasso and Johannes Vermeer have been delighting art lovers for years. But it turns out that these works of art might be their own worst enemy -- the canvases they were painted on can deteriorate over time. In an effort to combat this aging process, one group is reporting that nanomaterials can provide multiple layers of reinforcement. 
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Researchers squeeze light into nanoscale devices and circuits

ScienceDaily.com: Nanotechnology News - Wed, 05/23/2018 - 21:32
Investigators have made a major breakthrough in nanophotonics research, with their invention of a novel 'home-built' cryogenic near-field optical microscope that has enabled them to directly image, for the first time, the propagation and dynamics of graphene plasmons at variable temperatures down to negative 250 degrees Celsius. If researchers can harness this nanolight, they will be able to improve sensing, subwavelength waveguiding, and optical transmission of signals.
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Valves for tiny particles

ScienceDaily.com: Nanotechnology News - Wed, 05/23/2018 - 18:43
Newly-developed nanovalves allow the flow of individual nanoparticles in liquids to be controlled in tiny channels. This is of interest for lab-on-a-chip applications such as in materials science and biomedicine.
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Strain directs spin waves

ScienceDaily.com: Nanotechnology News - Wed, 05/23/2018 - 18:42
Scientists have revealed the relationship between the strain in a magnetic insulator thin film and spin waves. The relationship between magnetoelastic anisotropy and propagation properties of forward volume spin waves in single-crystalline yttrium iron garnet films grown on three garnet substrates was experimentally demonstrated. This facilitates the design of spin wave integrated circuits.
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A chip-scale broadband optical system that can sense molecules in the mid-infrared

NanoWerk.com - Wed, 05/23/2018 - 17:49
This novel system could lead to a spectroscopy lab-on-a-chip for real-time sensing in the microseconds.

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Atomic-scale manufacturing now a reality

NanoWerk.com - Wed, 05/23/2018 - 17:41
Scientists have applied a machine learning technique using artificial intelligence to perfect and automate atomic-scale manufacturing, something which has never been done before.

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Strain directs spin waves

NanoWerk.com - Wed, 05/23/2018 - 17:37
The relationship between magnetoelastic anisotropy and propagation properties of forward volume spin waves in single-crystalline yttrium iron garnet films grown on three garnet substrates was experimentally demonstrated. This facilitates the design of spin wave integrated circuits.

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Beyond the limits of conventional electronics: stable organic molecular nanowires

NanoWerk.com - Wed, 05/23/2018 - 17:32
Researchers have created the first thermally stable organic molecular nanowire devices using a single 4.5-nm-long molecule placed inside electroless gold-plated nanogap electrodes.

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Understanding the generation of light-induced electrical current in atomically thin nanomaterials

NanoWerk.com - Wed, 05/23/2018 - 15:49
Scientists demonstrated that scanning photocurrent microscopy could provide the optoelectronic information needed to improve the performance of devices for power generation, communications, data storage, and lighting.

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Research reveals how order first appears in liquid crystals

NanoWerk.com - Wed, 05/23/2018 - 15:44
Chemists have shown a technique that can identify regions in a liquid crystal system where molecular order begins to emerge just before the system fully transitions from disordered to ordered states.

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Using 3D X-rays to measure particle movement inside lithium ion batteries

NanoWerk.com - Wed, 05/23/2018 - 12:55
Researchers applied a technique using 3D X-ray tomography of an electrode to better understand what is happening on the inside of a lithium ion battery and ultimately build batteries with more storage capacity and longer life.

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