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Painless microneedle patch could replace needles

It's only a matter of time before drugs are administered via patches with painless microneedles instead of unpleasant injections. But designers need to balance the need for flexible, comfortable-to-wear material with effective microneedle penetration of the skin.

Posted: Dec 12th, 2016

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Electron highway inside crystal

Physicists have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used.

Posted: Dec 8th, 2016

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A nano-roundabout for light

Just like in normal road traffic, crossings are indispensable in optical signal processing. In order to avoid collisions, a clear traffic rule is required. A new method has now been developed by researchers to provide such a rule for light signals.

Posted: Dec 8th, 2016

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Chemical trickery corrals 'hyperactive' metal-oxide cluster

After decades of eluding researchers because of chemical instability, key metal-oxide clusters have been isolated in water, a significant advance for growing the clusters with the impeccable control over atoms that's required to manufacture small features in electronic circuits.

Posted: Dec 8th, 2016

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Researchers peer into atom-sized tunnels in hunt for better battery

Battery researchers seeking improved electrode materials have focused on 'tunneled' structures that make it easier for charge-carrying ions to move in and out of the electrode. Now a team has used a special electron microscope with atomic-level resolution to show that certain large ions can hold the tunnels open so that the charge-carrying ions can enter and exit the electrode easily and quickly.

Posted: Dec 8th, 2016

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