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New way to repair nerves: Using exosomes to hijack cell-to-cell communication

Biomedical engineers report a new way to induce human mesenchymal stem cells to differentiate into neuron-like cells: treating them with exosomes from rat-derived progenitor cells. In combination with synthetic nanoparticles now in development, researchers hope to make synthetic exosomes, inducing neuron growth without neural progenitor cells.

Posted: Sep 15th, 2015

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Understanding Nature's most striking colors

Researchers show how natural materials like plant cellulose can self-assemble into surfaces with stunning optical properties - including shiny iridescence and colors that change depending on the humidity.

Posted: Sep 15th, 2015

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One step closer to a new kind of computer

An international group of physicists recently presented results of experiments testing a new phenomenon. The results may assist scientists in the creation of an essentially new kind of electronics - Mott transition, or the transition of an insulator to a conductor.

Posted: Sep 15th, 2015

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Tracking slow nanolight in natural hyperbolic metamaterial slabs

Scientists have imaged how light moves inside an exotic class of matter known as hyperbolic materials. They observed, for the first time, ultraslow pulse propagation and backward propagating waves in deep subwavelength-scale thick slabs of boron nitride - a natural hyperbolic material for infrared light.

Posted: Sep 15th, 2015

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Pillared graphene gains strength

Researchers discovered that putting nanotube pillars between sheets of graphene could create hybrid structures with a unique balance of strength, toughness and ductility throughout all three dimensions.

Posted: Sep 15th, 2015

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Observing nano-bio interactions in real time

Researchers have developed a technique to observe, in real time, how individual blood components interact and modify advanced nanoparticle therapeutics. The method helps guide the design of future nanoparticles to interact in concert with human blood components, thus avoiding unwanted side effects.

Posted: Sep 15th, 2015

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New efficiency record for solar hydrogen production is 14 percent

An international team has succeeded in considerably increasing the efficiency for direct solar water splitting with a tandem solar cell whose surfaces have been selectively modified. The new record value is 14 percent and thus tops the previous record of 12.4 percent, broken now for the first time in 17 years.

Posted: Sep 15th, 2015

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Building the electron superhighway

Scientists have invented a new way to view and create what they are calling 'an electron superhighway' in an organic semiconductor. This approach promises to allow electrons to flow faster and farther - aiding the hunt for flexible electronics, organic solar cells, and other low-cost alternatives to silicon.

Posted: Sep 14th, 2015

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