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| Article 1 to 10 out of 77 concerning Angewandte Chemie
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Biomass as a source of raw materials
(19 May 2009)
New process for obtaining alkanes from bio-oil
For the protection of the environment, and because of the limited amount of fossil fuels available, renewable resources, such as specially cultivated plants, wood scraps, and other plant waste, are becoming the focus of considerable attention. ...
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Progress toward artificial tissue?
(19 May 2009)
Soft and tough like biological tissue: DNA-wrapped carbon nanotubes
For modern implants and the growth of artificial tissue and organs, it is important to generate materials with characteristics that closely emulate nature. However, the tissue in our bodies has a combination of traits that are very hard to recreate ...
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4-in-1
(12 May 2009)
Targeted gene suppression in cancer cells
Diagnosis and treatment in one go: Korean researchers led by Tae Gwan Park and Jinwoo Cheon have developed the basis for a four-in-one agent that can detect, target, and disable tumor cells while also making them macroscopically and microscopically ...
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Synthesis with a template
(05 May 2009)
Carbon-free fullerene analogue
The discovery of a soccer-ball-shaped molecule made of 60 carbon atoms was a minor revolution in chemistry: Fullerenes are spherical, highly symmetrical molecules made of carbon atoms, and are the third form of carbon after diamond and graphite. ...
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New ways to use biomass
(25 Sep 2008)
Tungsten carbide as catalyst for cost-effective conversion of cellulose into industrially useful carbon compounds
Alternatives to fossil fuels and natural gas as carbon sources and fuel are in demand. Biomass could play a more significant part in the future. Researchers in the USA and China have now developed a new catalyst that directly converts cellulose, the ...
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Power from formic acid
(09 May 2008)
Room temperature is warm enough: hydrogen for fuel cells from formic acid
One of the central challenges of our time is the supply of enough environmentally friendly and resource-efficient energy to our society. In this context, hydrogen technology has taken on increased importance. Björn Loges, Albert Boddien, Henrik ...
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Nano Dandelions
(05 Sep 2007)
Bundles of cysteine-lead nanowires spread into highly oriented structures
Under an electron microscope they look like dandelions. In the journal Angewandte Chemie, Xiao-Fang Shen and Xiu-Ping Yan explain their nanoscopic bouquets: They consist of spread-out bundles of nanowires made of lead and the amino acid l-cysteine. ...
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Natural Insecticide Re-Created in the Lab
(24 Aug 2007)
Success after 22 years of research: synthesis of azadirachtin
Twenty-two years of dedicated research has finally resulted in success: In the journal Angewandte Chemie, a British team headed by Steven V. Ley at the University of Cambridge reports the first synthesis of azadirachtin, a natural compound that ...
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Nanoreactors for Reaction Cascades
(21 Aug 2007)
Nanoscopic bubbles with plastic membrane and built-in enzymes for multistep one-pot reactions
Living cells are highly complex synthetic machines: Numerous multistep reactions run simultaneously side by side and with unbelievable efficiency and specificity. For these mainly enzymatic reactions to work so well collectively, nature makes use of ...
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From Microscopy to Nanoscopy
(14 Aug 2007)
Photoswitchable rhodamine amides for high-resolution optical 3D far-field microscopy
Layer-by-layer light microscopic nanoscale images of cells and without having to prepare thin sections? A team led by Stefan Hell and Mariano Bossi at the Max Planck Intstitute for Biophysical Chemistry in Göttingen is now leading the way with a ...
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