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Tree metabolite identification combats beetle devastation

Date: Feb 1, 2018

Author: Ryan De Vooght-Johnson

The emerald ash borer is an invasive beetle that is currently destroying vast numbers of ash trees in North America. Scientists from Trent University, Peterborough and RB Consulting (both Ontario, Canada) used LC-MS to compare the metabolites from ash trees attacked by the insect with those from unaffected trees, thus providing a convenient method of early detection.

Read More thumbnail image: Tree metabolite identification combats beetle devastation

X-ray toys: Toxic contaminants

Date: Feb 1, 2018

Author: David Bradley

X-ray fluorescence (XRF) spectrometry has been used by British scientists to analyse the presence of elements within individual plastic toys. The study reveals worrying levels of bromine, cadmium, lead, and other chronically toxic elements that might leach from broken toys chewed or inadvertently swallowed by a child.

Read More thumbnail image: X-ray toys Toxic contaminants

Journal Highlight: Raman-based technique for measuring thermal conductivity of graphene and related materials

Date: Jan 29, 2018

Author: spectroscopyNOW

A Raman spectroscopic method of measuring thermal conductivity of thin films has been described and the results achieved for graphene and other two-dimensional materials have been reviewed.

Read More thumbnail image: Journal Highlight Raman-based technique for measuring thermal conductivity of graphene and related materials

Journal Highlight: Feasibility of near infrared transmittance spectroscopy to predict fatty acid composition of commercial processed meat

Date: Jan 29, 2018

Author: spectroscopyNOW

Near infrared transmittance spectroscopy can be considered as a reliable method for predicting the main groups of fatty acids in processed meat products, whereas predictions of individual fatty acid are less reliable.

Read More thumbnail image: Journal Highlight Feasibility of near infrared transmittance spectroscopy to predict fatty acid composition of commercial processed meat

Journal Highlight: A review of NMR methods used in the study of the structure and dynamics of ionic liquids

Date: Jan 29, 2018

Author: spectroscopyNOW

This mini-review presents a brief research summary of the applications of NMR spectroscopy to the structure and dynamics of pure ionic liquids and their mixtures with lithium salts.

Read More thumbnail image: Journal Highlight A review of NMR methods used in the study of the structure and dynamics of ionic liquids

Journal Highlight: Metallic fumes at indoor military shooting ranges: Lead, copper, nickel, and zinc in different fractions of airborne particulate matter

Date: Jan 29, 2018

Author: spectroscopyNOW

Levels of lead, copper, nickel and zinc in particulate matter at indoor military shooting ranges have been measured by ICP-OES and ICP-MS.

Read More thumbnail image: Journal Highlight Metallic fumes at indoor military shooting ranges Lead copper nickel and zinc in different fractions of airborne particulate matter

Journal Highlight: Multiplex quantitative SILAC for analysis of archaeal proteomes: a case study of oxidative stress responses

Date: Jan 22, 2018

Author: spectroscopyNOW

SILAC has been used for the quantitative comparison of archaeal proteomes using Haloferax volcanii as a model to demonstrate its value as a method that holds promise for unravelling gene function.

Read More thumbnail image: Journal Highlight Multiplex quantitative SILAC for analysis of archaeal proteomes a case study of oxidative stress responses

Journal Highlight: Real world MRI experience with nonconditional and conditional cardiac rhythm devices after MagnaSafe

Date: Jan 22, 2018

Author: spectroscopyNOW

The recent MagnaSafe Registry of nonthoracic MRI with nonconditional cardiac implantable electronic devices has been independently validated and extended to thoracic MRIs, arguing against replacing nonconditional with conditional devices when MRI is performed in a carefully controlled environment.

Read More thumbnail image: Journal Highlight Real world MRI experience with nonconditional and conditional cardiac rhythm devices after MagnaSafe

Network premiere for fumarase-insufficient cells

Date: Jan 16, 2018

Author: Ryan De Vooght-Johnson

Fumarase is an important enzyme, and work with rats suggested that low levels may affect amino acid levels and possibly be associated with hypertension. Scientists in China have examined the metabolites of human cells that had been genetically altered to be deficient in fumarase, comparing them to the metabolites from control cells using GC-MS and chemometric methods, such as pathway analysis.

Read More thumbnail image: Network premiere for fumarase-insufficient cells

Alternative tobacco products: Dokha is not as safe as people might think

Date: Jan 15, 2018

Author: Steve Down

A comprehensive analysis of Dokha tobacco, an increasing popular alternative smoking product, has identified harmful amounts of toxic metals in the ash and a number of toxic organic compounds in the smoke, including carcinogens and irritants.

Read More thumbnail image: Alternative tobacco products Dokha is not as safe as people might think
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