News tagged with silica

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An improved method for coating gold nanorods

Researchers have fine-tuned a technique for coating gold nanorods with silica shells, allowing engineers to create large quantities of the nanorods and giving them more control over the thickness of the shell. ...

Mar 18, 2015
5 / 5 (2) 0

Image: Optical bench of LISA Pathfinder

An intimate view of a key part of the payload of ESA's LISA Pathfinder satellite, which will be the 'stillest' ever flown in space – in fact, the distant-orbiting spacecraft is set to become the single ...

Mar 12, 2015
3.5 / 5 (2) 0

Anti-counterfeit polymers work like fingerprints

(Phys.org)—When it comes to tagging items to prove their authenticity, the goal is to stay ahead of counterfeit technology. The best tags are unique, complex, easy to read, and difficult to reproduce. ...

Feb 16, 2015 report
4.4 / 5 (15) 0

Data-storage for eternity

Scrolls thousands of years old provide us with a glimpse into long-forgotten cultures and the knowledge of our ancestors. In this digital era, in contrast, a large part of our knowledge is located on servers ...

Feb 12, 2015
4.7 / 5 (3) 0

Coating noble metal nanoparticles with silica

A straightforward and effective process for coating silver, gold and platinum nanoparticles with functionalized silica shells at room temperature has been developed by A*STAR . Crucially, unlike conventional ...

Feb 04, 2015
1 / 5 (1) 1