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Liposomes as blueprints for hollow platinum nanospheres
06-Nov-2006 - Tiny structures made of precious metals are of interest because of their broad spectrum of biomedical, catalytic, and optical applications. Porous nanospheres, for example, are ideal for catalytic applications that require large surfaces but can work at low concentration (and consequently with ...
Gold nanoparticles adhere to only certain faces of crystals of the amino acid cystine
13-Jul-2006 - Gold nanoparticles stand out through their unique optical, electronic, and catalytic properties and are the ideal "building blocks" for nanostructures. Composite materials with a one or two-dimensional arrangement of the gold nanoparticles are especially interesting for the construction of ...
28-Sep-2005 - There is an acute need for technological improvements in the advanced catalysts industry as robust and long-lasting catalysts are the need of the hour. By preventing catalyst deactivation, the new breed of catalysts can improve process efficiency and thereby, run rigs at higher capacities and ...
24-Jun-2005 - Reaxa Limited, the new catalyst technologies company, formally commenced trading following a successful spin-out from Avecia. Reaxa offers new product platforms for "easier, faster and cleaner chemistry" in pharmaceutical and specialty chemical production. Reaxa is a combined venture between the ...
27-May-2005 - W. C. Heraeus, a subsidiary of the globally active precious metals and technology group Heraeus Holding GmbH, has acquired a 60 percent interest in Shenzhen Jinsheng Precious Metals Products Ltd. in China. Based in southern China, the company manufactures gold and silver chemicals that are needed ...
10-Sep-2004 - By the 19th century, platinum was a prized metal for jewelry manufacture. But it has a very high melting point and could not be processed on an industrial scale because the only available method of working it was a complex white-heat process. In 1856, a technological breakthrough developed by the ...
11-Aug-2004 - W. C. Heraeus GmbH & Co. KG, a subsidiary of the globally active precious metals and technology group Heraeus Holding GmbH, became 80% shareholder of Vadnais Technologies Corporation effective by August 1st. With this merger the Medical Components Division of W.C. Heraeus GmbH & Co KG continues ...
01-Jun-2004 - Little rods made of nickel and gold sound like something from a jeweler's shop, but with an average diameter of only about 330 nanometers, the rods in this case are far too small to make fashionable jewelry. Why then have Chad A. Mirkin and his team at Northwestern University in Evanston (USA) ...
Defined patterns of gold nanoparticles in transparent materials - optoelectronic building blocks of the future?
19-Apr-2004 - Small but impressive: nanoparticles are so tiny that they are somewhere between individual atoms and "normal" solid particles. Their optical and electronic properties are correspondingly intriguing. Collaborating Japanese and Chinese researchers have now developed a method by which gold ...
01-Mar-2004 - Catalytic converters in cars consist of tiny platinum particles that have been deposited onto a porous ceramic support. At high temperatures, these particles can sinter, meaning that they fuse together with the support material and undergo chemical reactions. What is going on at the nanoscopic ...
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