ScienceDaily.com: Nanotechnology News

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Nanotechnology news. From nanoscience to nanotechnology applications such as nanotechnology in medicine, read the latest news from leading research institutes.
Updated: 4 hours 44 min ago

Microscopy advance reveals unexpected role for water in energy storage material

Thu, 05/24/2018 - 19:23
A material with atomically thin layers of water holds promise for energy storage technologies, and researchers have now discovered that the water is performing a different role than anyone anticipated. The finding was possible due to a new atomic force microscopy method that measures the sub-nanoscale deformation rate in the material in response to changes in the material caused by energy storage.
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Silicon breakthrough could make key microwave technology much cheaper and better

Thu, 05/24/2018 - 16:17
Researchers using powerful supercomputers have found a way to generate microwaves with inexpensive silicon, a breakthrough that could dramatically cut costs and improve devices such as sensors in self-driving vehicles.
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Cheap, small carbon nanotubes

Thu, 05/24/2018 - 00:01
Carbon nanotubes are supermaterials that can be stronger than steel and more conductive than copper, but they're rare because, until now, they've been incredibly expensive.
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Electron tomography technique leads to 3-D reconstructions at the nanoscale

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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Controlled nano-assembly

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

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

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

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

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

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

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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Putting the optical microscope under the microscope to achieve atomic accuracy

Wed, 05/23/2018 - 01:00
New work enables optical microscopes to measure these nanometer-scale details with a new level of accuracy.
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A better way to control crystal vibrations

Mon, 05/21/2018 - 23:42
The vibrational motion of an atom in a crystal propagates to neighboring atoms, which leads to wavelike propagation of the vibrations throughout the crystal. The way in which these natural vibrations travel through the crystalline structure determine fundamental properties of the material. Now, researchers have shown that by swapping out just a small fraction of a material's atoms with atoms of a different element, they can control the speed and frequencies of these vibrations.
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Flexible, highly efficient multimodal energy harvesting

Mon, 05/21/2018 - 22:38
A 10-fold increase in the ability to harvest mechanical and thermal energy over standard piezoelectric composites may be possible using a piezoelectric ceramic foam supported by a flexible polymer support, according to researchers.
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Discovery for grouping atoms invokes Pasteur

Mon, 05/21/2018 - 21:18
Scientists have found a new way of joining groups of atoms together into shape-changing molecules -- opening up the possibility of a new area of chemistry and the development of countless new drugs, microelectronics and materials. Discoveries of new ways to make isomers -- molecules made of the same atoms connected together differently -- were last reported in 1961 and before then in 1914. Proof-of-principle and prototype demonstration of this important finding are expected within 30 months.
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Self-healing material a breakthrough for bio-inspired robotics

Mon, 05/21/2018 - 21:17
Many natural organisms have the ability to repair themselves. Now, manufactured machines will be able to mimic this property. Researchers have created a self-healing material that spontaneously repairs itself under extreme mechanical damage.
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Boron nitride nanotubes enhanced for next-gen composites

Mon, 05/21/2018 - 21:17
Researchers discover a way to 'decorate' electrically insulating boron nitride nanotubes with functional groups. That makes them complementary building blocks to conductive carbon nanotubes for future composite and polymer materials.
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Nanoparticles derived from tea leaves destroy lung cancer cells: Quantum dots have great potential

Mon, 05/21/2018 - 17:27
Nanoparticles derived from tea leaves inhibit the growth of lung cancer cells, destroying up to 80 percent of them, new research has shown. The team made the discovery while they were testing out a new method of producing a type of nanoparticle called quantum dots. These are tiny particles which measure less than 10 nanometers. A human hair is 40,000 nanometers thick.
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New technique reveals 3D shape of nanostructure's polariton interaction

Mon, 05/21/2018 - 17:26
Researchers have found a way to reveal the 3D shape of the polariton interaction around a nanostructure. Their technique improves upon the common spectroscopic imaging technique known as scattering-type scanning near-field optical microscopy (s-SNOM).
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Diamond 'spin-off' tech could lead to low-cost medical imaging and drug discovery tools

Fri, 05/18/2018 - 22:10
An international team has discovered how to exploit defects in nanoscale and microscale diamonds and potentially enhance the sensitivity of magnetic resonance imaging and nuclear magnetic resonance systems while eliminating the need for their costly and bulky superconducting magnets.
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