NMR Knowledge Base / Ezine
Chemical directors
Date: Jun 15, 2009
Author: David Bradley
The activation of aromatic carbon-hydrogen bonds is a complicated business, but NMR spectroscopy has now provided new insights into a new approach with wide potential in synthetic organic chemistry.
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Toxic fungal triangle
Date: Jun 1, 2009
Author: David Bradley
Proton NMR spectroscopy has been used to identify the lethal toxic culprit in a spate of recent food poisoning incidents among Japanese people eating mushrooms including the species Russula subnigricans.
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Chemical law and disorder in the wild
Date: May 15, 2009
Author: David Bradley
An international team has used solid state NMR to determine the structure of the chlorophyll molecules in green bacteria that are responsible for harvesting light energy.
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Direct detection of alkylphosphonic acids in environmental matrices by proton coupled phosphorus NMR
Date: May 8, 2009
Author:
A simple, convenient, and direct one-dimensional (1D) 31P NMR technique is demonstrated first time for the detection of alkyl- phosphonic acids (marker of nerve agents) in the environmental samples.
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Recycling carbon dioxide
Date: May 1, 2009
Author: David Bradley
A research team in Singapore has developed an alternative to simply burying carbon dioxide captured from sources such as coal-fired power stations. Their experiments used NMR spectroscopy to track the catalytic conversion of carbon dioxide into methanol under very mild reaction conditions.
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Teasing out NMR with a stripline
Date: Apr 15, 2009
Author: David Bradley
A high-resolution NMR flow probe for microfluidic systems based on a new type of stripline detector chip has been developed by researchers in The Netherlands. The tool could be useful in direct monitoring of chemical reactions performed in so-called lab-on-a-chip devices.
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Naturally synthetic capsules
Date: Apr 1, 2009
Author: David Bradley
Synthetic capsules made from natural building blocks have been studied with NMR spectroscopy. The block copolymer capsules made from protein and sugar components mimic the behaviour of cells and might be useful as microreactors or as drug-delivery agents.
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The spicy disciplinarian
Date: Mar 15, 2009
Author: David Bradley
Solid state NMR has been used to explain why curcumin, one of the phyisiologically active components of the yellow spice turmeric has wound healing and other medicinal properties.
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Automatic phase correction of 2D NMR spectra by a whitening method
Date: Mar 6, 2009
Author:
A new method for the automatic phase correction of multidimensional NMR spectra is described. It is based on the whitening concept formulated as the 'maximization of the number of white pixels into a bitmap that corresponds to the spectrum'.
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Plug and play molecular logic
Date: Mar 1, 2009
Author: David Bradley
A "plug and play" approach to building molecular logic units has been developed by chemists in the UK and Thailand. The team used various spectroscopic techniques, including fluorescence and NMR to monitor their logical constructions.
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