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Prune protection: NMR looks at pectins

Date: Nov 15, 2013

Author: David Bradley

Prunes, the dried carcass of the plum are infamous for their interaction with the gastrointestinal tract. Now, carbon-13 NMR spectroscopy has been used in studies of gastroprotective compounds, pectins, found in prunes. The compounds are rhamnogalacturonans with type I arabinogalactans as side chains and insights into their structures and physiological effects could offer new insights into understanding gastric protection.

Read More thumbnail image: Prune protection NMR looks at pectins

Journal Highlight: Hydrothermal upgrading of algae paste: Application of 31P-NMR

Date: Nov 4, 2013

Author: spectroscopyNOW

The fate of derivatized (2-chloro-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane) hydroxyl groups during hydrothermal upgrading of algae was studied by 31P NMR to understand the transformation of algal biomass into biocrude.

Read More thumbnail image: Journal Highlight Hydrothermal upgrading of algae paste Application of 31P-NMR

Natural synthetic: Analgesic unearthed

Date: Nov 1, 2013

Author: David Bradley

The African pin cushion plant produces large quantities of analgesic compounds...now NMR has demonstrated that one of the primary components is chemically identical to the well-known, synthetic opioid painkiller Tramadol.

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New NMR cancer model: Tracking progress

Date: Oct 15, 2013

Author: David Bradley

A new modelling technique for real-time tracking of metabolic reactions in tumours has been developed by UK researchers. The system based on a simplified computer model of nuclear magnetic resonance spectra could allow oncologists to assess how well their prescribed treatment, whether chemotherapy, radiotherapy or an immunological treatment is progressing without surgical intervention nor the need for regular biopsies.

Read More thumbnail image: New NMR cancer model Tracking progress

Plant dynamics: NMR offers cellular clues

Date: Oct 1, 2013

Author: David Bradley

Researchers in the USA have used dynamic nuclear polarization (DNP) nuclear magnetic resonance (NMR) spectroscopy on what they describe as a super-sensitive instrument to locate precisely where a protein binds to plant cell walls, reveal a process that loosens the cell walls and thus explains how plants can grow. The research might ultimately lead to more abundant biomass crop yields for renewable energy.

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Journal Highlight: Use of diffusion-ordered NMR spectroscopy and HPLC–UV–SPE–NMR to identify undeclared synthetic drugs in medicines illegally sold as phytotherapies

Date: Sep 30, 2013

Author: spectroscopyNOW

The advantages and limitations of DOSY and HPLC–UV–SPE–NMR for identifying the components of a formula illegally marketed in Brazil as a herbal medicine have been examined.

Read More thumbnail image: Journal Highlight Use of diffusion-ordered NMR spectroscopy and HPLCUVSPENMR to identify undeclared synthetic drugs in medicines illegally sold as phytotherapies

Meteoric rise: NMR reflections

Date: Sep 15, 2013

Author: David Bradley

Solid-state NMR spectroscopy and other techniques have been used to make an inventory of the insoluble organic molecules found in the Sutter's Mill meteorite that may reflect the chemical resources available to the early Earth. Details of the NMR and gas chromatography-mass spectrometric analyses released upon hydrothermal treatment of a sample from the meteorite are reported in the journal Proceedings of the National Academy of Sciences this month.

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Journal Highlight: 1H NMR metabolite fingerprinting as a new tool for body fluid identification in forensic science

Date: Sep 2, 2013

Author: spectroscopyNOW

1H NMR spectroscopy coupled with mathematical strategies has been proposed for the first time as a fast and non-destructive tool for body fluid trace identification in forensic science.

Read More thumbnail image: Journal Highlight 1H NMR metabolite fingerprinting as a new tool for body fluid identification in forensic science

Pernicious problem: B12 stacks up

Date: Sep 1, 2013

Author: David Bradley

Vitamin B12, also known as the antipernicious anaemia factor, is an essential nutrient for humans. Now, British scientists have pinned down the mechanism and route of its biosynthesis using electron paramagnetic resonance EPR) and other techniques in what has often been referred to as the "Mount Everest of biosynthetic problems".

Read More thumbnail image: Pernicious problem B12 stacks up

Colon cancer calculated: Metabolic profiling

Date: Aug 15, 2013

Author: David Bradley

Nuclear magnetic resonance (NMR) spectroscopy can be used to obtain a metabolic fingerprint of cancer of the bowel and so determine how far advanced the disease is, according to UK researchers.

Read More thumbnail image: Colon cancer calculated Metabolic profiling
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