Cheap, small carbon nanotubes

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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Controlled nano-assembly

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

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

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

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

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

Researchers from ETH Zurich have developed tiny valves that enable individual nanoparticles in liquids to be separated and sorted. The valves can be used for a very broad range of tiny particles, including individual metal and semiconductor nanoparticles, virus particles, liposomes and larger biomolecules such as antibodies.

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Valves for tiny particles

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

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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Strain directs spin waves

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.

Continue reading » · Written on: 05-23-18 · No Comments »