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Thrombosis biomarkers: Proteins identify leukaemia patients at risk from asparaginase therapy

Date: Apr 15, 2015

Author: Steve Down

Proteomic analysis of the cerebrospinal fluid of children with acute lymphoblastic leukaemia under asparaginase therapy might be a way to identify those at risk from thrombosis, say US researchers.

Read More thumbnail image: Thrombosis biomarkers Proteins identify leukaemia patients at risk from asparaginase therapy

Sunscreen ratings: Protection factors by mass spec imaging

Date: Apr 15, 2015

Author: Steve Down

The sun protection factor of sunscreens can be estimated in vitro using mass spectrometry by measuring the levels of the filter compounds that have protective activity.

Read More thumbnail image: Sunscreen ratings Protection factors by mass spec imaging

Have you got a light? Protein illumination

Date: Apr 15, 2015

Author: David Bradley

An X-ray crystal structure of the protein KR2, a light-driven transporter for sodium ions, could facilitate the field of optogenetics where neurons and other electrically excitable cells can be controlled using light impulses.

Read More thumbnail image: Have you got a light Protein illumination

Harnessing insulation: Magnetic clue

Date: Apr 15, 2015

Author: David Bradley

A subatomic magnetic phenomenon predicted more than sixty years ago has been measured for the first time. The demonstration of van Vleck magnetism could open the door to harnessing topological insulators - hybrid materials that are both conducting and insulating - and may well lead to new approaches to quantum computing, spintronics applications, and much-improved semiconductors.

Read More thumbnail image: Harnessing insulation Magnetic clue

Driving takes its toll: Emissions database

Date: Apr 15, 2015

Author: David Bradley

Vehicles generate about 28 percent of carbon dioxide emissions from fossil fuels in the USA, a proportion that is rising in many urban areas. Now, researchers have created DARTE (Database of Road Transportation Emissions), a new US wide data inventory to allow more detailed emission studies to be carried out in the context of climate change and other pollution effects.

Read More thumbnail image: Driving takes its toll Emissions database

Green coffee: Mineral deposits by FAAS

Date: Apr 15, 2015

Author: David Bradley

Unroasted, green, coffee beans have become a popular alternative to regular coffee because of purported health benefits so getting a clearer picture of what mineral ions and other components might be present in different infusions is important. Now, a fast and simple method for the analysis of infusions has been developed - high resolution-continuum source flame atomic absorption spectrometry - the technique can provide total concentrations of calcium, copper, iron, magnesium and manganese ions.

Read More thumbnail image: Green coffee Mineral deposits by FAAS

Journal Highlight: Shrunken centroids regularized discriminant analysis as a promising strategy for metabolomics data exploration

Date: Apr 13, 2015

Author: spectroscopyNOW

Shrunken centroids regularized discriminant analysis has been applied to the exploration of a metabolomics dataset in the search for biomarkers.

Read More thumbnail image: Journal Highlight Shrunken centroids regularized discriminant analysis as a promising strategy for metabolomics data exploration

Journal Highlight: A stretchable nanowire UV–Vis–NIR photodetector with high performance

Date: Apr 6, 2015

Author: spectroscopyNOW

A stretchable UV–vis–NIR nanowire photodetector consisting of PbS quantum dot–poly(3-hexylthiopehene) hybrid nanowires has been fabricated.

Read More thumbnail image: Journal Highlight A stretchable nanowire UVVisNIR photodetector with high performance

Journal Highlight: L-Lysine: Exploiting powder X-ray diffraction to complete the set of crystal structures of the 20 directly encoded proteinogenic amino acids

Date: Apr 6, 2015

Author: spectroscopyNOW

Modern powder X-ray diffraction methods have been exploited to determine the crystal structure of L-lysine.

Read More thumbnail image: Journal Highlight L-Lysine Exploiting powder X-ray diffraction to complete the set of crystal structures of the 20 directly encoded proteinogenic amino acids

Journal Highlight: In situ analysis of soybeans and nuts by probe electrospray ionization mass spectrometry

Date: Apr 6, 2015

Author: spectroscopyNOW

Probe electrospray ionization mass spectra of soybeans and several nuts (peanuts, walnuts, cashew nuts, macadamia nuts and almonds) have been recorded in situ using different solid needles as sampling probes.

Read More thumbnail image: Journal Highlight In situ analysis of soybeans and nuts by probe electrospray ionization mass spectrometry
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