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| Article 1 to 10 out of 17 concerning Angewandte Chemie
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Coming Soon: Blood Vessels from a Test Tube?
(06/08/2007)
Controlled layered structures from living cells and an extracellular matrix
Our tissues and organs consist of a complex, closely balanced assembly of different types of cells, extracellular matrix, and special signal-carrying molecules. The growth of such structures in the laboratory, perhaps for transplantation into ...
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Better Insight into Brain Anatomical Structures
(05/31/2007)
Manganese oxide nanoparticles as contrast agents for brain magnetic resonance imaging
Magnetic resonance imaging is a very effective method for revealing anatomical details of soft tissues. Contrast agents can help to make these images even clearer and allow physiological processes to be followed in real time. Conventional gadolinium ...
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Fingerprint instead of Blood Sample
(05/21/2007)
Antibody tests on fingerprints to detect drugs and diseases
To this day, fingerprints are just the thing when a perpetrator needs to be arrested or a person needs to be identified. British scientists working with David A. Russell also want to make it possible to use fingerprints to reveal drug and doping ...
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Revealing Photographs of DNA
(05/14/2007)
Ultrasensitive DNA detection with photographic paper
Ultrasensitive genetic detection methods could revolutionize the diagnosis and treatment of diseases. However, all the techniques until now have been far too technically demanding for broad application. Munich researchers led by Thomas Carell have ...
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Gene Lab To Go
(05/02/2007)
Reasonably priced and battery-driven: a pocket PCR device
A huge number of diagnostic techniques are based on PCR (the polymerase chain reaction): the use of PCR allows even the tiniest amounts of genetic material to be duplicated so that it can be analyzed. This should make things such as the rapid and ...
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Progress toward Artificial Photosynthesis?
(03/13/2007)
Direct activation with graphitic carbon nitride makes carbon dioxide accessible for chemical synthesis
Plants can do it: they simply grab carbon dioxide out of the air and covert it into biomass. In this process, known as photosynthesis, the plants use light as their energy source. Chemists would also like to be able to use CO2 as a carbon source for ...
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Origin of life: the search for the first genetic material
(11/22/2006)
Critical Pairing
How did life originate on Earth? Until now, there have only been theories to answer this question. One of the fundamental steps leading to living organisms is the development of molecules that can replicate and multiply themselves - the first ...
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New blood-clotting inhibitor that can be switched off by irradiation
(10/11/2006)
Built-in BlockerDrug and antidote in the same molecule
In cases of serious side effects or overdoses of medications, it can be vital to have a fast-acting antidote on hand. This is especially true of drugs that inhibit blood clotting, which are used to prevent and treat thromboses and embolisms, to ...
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Two-Stage Amplifier Coupling two enzymatic reactions: sensitive detection for immunological ELISA tests
(07/17/2006)
Bioanalytical and diagnostic test methods are often based on the recognition of biomolecules by other biomolecules. However, biochemical events such as these are not directly detectable and must first be converted into physical signals, for example ...
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Remote Control
(06/29/2006)
Microcapsules enter cells and an external flash of light triggers release of their contents
Pharmacologists dream of being able to deliver a drug directly to its target location within a cell. This would make it possible to avoid many of the undesired side effects of medications. The dosage could also be reduced and adjusted more precisely ...
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