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Acupuncture for vascular dementia: Proteins implicated

Date: Nov 15, 2018

Author: Steve Down

The molecular mechanisms behind the improvement of vascular dementia initiated by acupuncture have been investigated by Chinese scientists who used proteomics to indicate that proteins involved in oxidative stress, apoptosis and synaptic function were affected.

Read More thumbnail image: Acupuncture for vascular dementia Proteins implicated

Journal Highlight: Characterisation and screening of antimicrobial essential oil components against clinically important antibiotic‐resistant bacteria using TLC‐direct bioautography hyphenated with GC‐MS, LC‐MS and NMR

Date: Nov 12, 2018

Author: separationsNOW

Researchers in the UK used various analytical techniques, including gas, liquid and thin-layer chromatography with mass spectrometry and NMR spectroscopy, to identify and characterize antimicrobial components in essential oils.

Read More thumbnail image: Journal Highlight Characterisation and screening of antimicrobial essential oil components against clinically important antibioticresistant bacteria using TLCdirect bioautography hyphenated with GCMS LCMS and NMR

Journal Highlight: Gas chromatography selectivity of new phosphonium‐based dicationic ionic liquid stationary phases

Date: Nov 12, 2018

Author: separationsNOW

Three phosphonium‐based dicationic ionic liquids were synthesized as bis(trifluoromethylsulfonyl) imide salts for use as ionic liquids with unique selectivity for gas chromatography.

Read More thumbnail image: Journal Highlight Gas chromatography selectivity of new phosphoniumbased dicationic ionic liquid stationary phases

Journal Highlight: Quantitative analysis of artificial sweeteners by CE with a dual‐capillary design of molecularly imprinted solid‐phase extractor

Date: Nov 12, 2018

Author: separationsNOW

Korean chemists have developed a molecularly imprinted polymer-based method for extracting sweeteners, sucrose, sucralose and aspartame from soda drinks prior to analysis by capillary electrophoresis.

Read More thumbnail image: Journal Highlight Quantitative analysis of artificial sweeteners by CE with a dualcapillary design of molecularly imprinted solidphase extractor

Journal Highlight: Genotypic and phenotypic characterization of Escherichia coli isolated from mollusks in Brazil and the United States

Date: Nov 12, 2018

Author: separationsNOW

Scientists from Brazil and the US used pulsed‐field gel electrophoresis to investigate the genetic diversity of Escherichia coli isolates from samples of bivalve mollusks such as mussels and oysters.

Read More thumbnail image: Journal Highlight Genotypic and phenotypic characterization of Escherichia coli isolated from mollusks in Brazil and the United States

Under pressure: Creating a pressure-driven flow with electroosmotic flow

Date: Nov 12, 2018

Author: Jon Evans

Scientists in the US have developed a way to generate a pressure-driven flow directly on an ion chromatography microchip by taking advantage of electroosmotic flow.

Read More thumbnail image: Under pressure Creating a pressure-driven flow with electroosmotic flow

Separation solved by cyclodextrin in solvent

Date: Nov 8, 2018

Author: Ryan De Vooght-Johnson

It is important to be able to determine the enantiomeric purity of chiral drugs, but existing chiral HPLC methods are expensive and use large amounts of solvent. Researchers from Alexandria University used a Box-Behnken experimental design to optimise an HPTLC method for separating the enantiomers of three β-blocker drug compounds.

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Journal Highlight: Denaturing high‐performance liquid chromatography and principal component analysis for identification of DNA point mutations in breast cancer and lymphoma samples

Date: Nov 5, 2018

Author: separationsNOW

Principal component analysis has been used to analyze the HPLC chromatograms from 3 different genes acquired under denaturing conditions to identify point mutations.

Read More thumbnail image: Journal Highlight Denaturing highperformance liquid chromatography and principal component analysis for identification of DNA point mutations in breast cancer and lymphoma samples

Journal Highlight: Novel monofunctional and bifunctional boronic acid‐functionalized squarylium dyes as precolumn and on‐column labels for protein analysis by CE-LIF

Date: Nov 5, 2018

Author: separationsNOW

Egyptian chemists have shown that squarylium dyes can be used to label proteins for analysis by capillary electrophoresis with laser‐induced fluorescence.

Read More thumbnail image: Journal Highlight Novel monofunctional and bifunctional boronic acidfunctionalized squarylium dyes as precolumn and oncolumn labels for protein analysis by CE-LIF

Journal Highlight: Contribution of hydroxymethane sulfonate to ambient particulate matter: A potential explanation for high particulate sulfur during severe winter haze in Beijing

Date: Nov 5, 2018

Author: separationsNOW

Researchers from the US and China have shown that ion chromatography methods for measuring ambient particulates in the atmosphere can easily misinterpret hydroxymethane sulfonate as sulfate.

Read More thumbnail image: Journal Highlight Contribution of hydroxymethane sulfonate to ambient particulate matter A potential explanation for high particulate sulfur during severe winter haze in Beijing
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