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Flavonols and flavonoids: UV spectroscopic analysis

Date: Nov 1, 2016

Author: David Bradley

Various spectroscopic methods, including UV-Vis, infrared, Raman, nuclear magnetic resonance spectroscopy and electrospray ionization mass spectrometry have been used to investigate the relationship between the molecular structure and biological activity of hydroxyflavonol metal complexes. UV-Vis emerges as the most efficient in understanding the interaction of flavonols with DNA.

Read More thumbnail image: Flavonols and flavonoids UV spectroscopic analysis

Journal Highlight: Analysis of electrical discharge plasma in a gas-liquid flow reactor using optical emission spectroscopy and the formation of hydrogen peroxide

Date: Oct 10, 2016

Author: spectroscopyNOW

Optical emission spectroscopy was used to characterize an electrical discharge plasma reactor with a liquid H2O film contacting different carrier gases that produced hydrogen peroxide.

Read More thumbnail image: Journal Highlight Analysis of electrical discharge plasma in a gas-liquid flow reactor using optical emission spectroscopy and the formation of hydrogen peroxide

A star is reborn: Helium flash

Date: Oct 1, 2016

Author: David Bradley

Stellar spectroscopic studies have revealed new details about the life cycle of a distant star and shown for the first time a stellar rebirth after three decades of astronomical observations.

Read More thumbnail image: A star is reborn Helium flash

Journal Highlight: Haploid differentiation in maize kernels based on fluorescence imaging

Date: Sep 6, 2016

Author: spectroscopyNOW

A new fluorescence-based method for inbred haploid differentiation in maize kernels was developed by utilizing the R1-nj colour marker in combination with fluorescence microspectroscopy and imaging.

Read More thumbnail image: Journal Highlight Haploid differentiation in maize kernels based on fluorescence imaging

Algal bioengineers: Nanoparticle fabricators

Date: Sep 1, 2016

Author: David Bradley

UV-Vis, Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy, scanning electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, dynamic light scattering have all been used to investigate metal oxide nanoparticles generated by algae.

Read More thumbnail image: Algal bioengineers Nanoparticle fabricators

Journal Highlight: Spectroscopic methods and their applicability for high-throughput characterization of mammalian cell cultures in automated cell culture systems

Date: Aug 8, 2016

Author: spectroscopyNOW

UV/VIS, fluorescence, Raman, near-infrared, and mid-infrared spectroscopy are presented and evaluated for their applicability in the new field of mammalian cell culture processes in automated cell culture systems.

Read More thumbnail image: Journal Highlight Spectroscopic methods and their applicability for high-throughput characterization of mammalian cell cultures in automated cell culture systems

Extreme ultraviolet: Constructing an experimental database

Date: Aug 1, 2016

Author: David Bradley

The identification of new emission lines from heavy ions is allowing researchers in Japan to build a database of extreme ultraviolet spectra. The data could find use in the development of extreme ultraviolet lithography light sources and other plasma applications.

Read More thumbnail image: Extreme ultraviolet Constructing an experimental database

Journal Highlight: Development of fluorescent gelators and detection of explosives using fibrous xerogel films

Date: Jul 11, 2016

Author: spectroscopyNOW

Fluorescent gelators containing stilbene segments have been synthesized, characterised and used to detect TNT and RDX vapour by fluorescence quenching.

Read More thumbnail image: Journal Highlight Development of fluorescent gelators and detection of explosives using fibrous xerogel films

Blind wine testing: Anthocyanin database enables identification in the laboratory

Date: Jul 1, 2016

Author: Ryan De Vooght-Johnson

See, sniff, sip, swirl. That's how wine connoisseurs are schooled to judge a prize-winning wine, but researchers envisage more scientific criteria. Published in Rapid Communications in Mass Spectrometry, scientists from China and New Zealand worked together to devise a method and complementary database that enable the identification of a vast array of anthocyanins not possible hitherto.

Read More thumbnail image: Blind wine testing Anthocyanin database enables identification in the laboratory

UV or not UV: Nilotinib monitoring becomes affordable and accessible

Date: Jul 1, 2016

Author: Ryan De Vooght-Johnson

Levels of therapeutic drugs, much like our caffeine fixes, constantly peak and dip as newly administered drug is both absorbed and broken down. What’s more, the level of circulating leukaemia-fighting tyrosine kinase inhibitors at its lowest—its trough—correlates strongly with its effectiveness, scientists have found. Accordingly, the monitoring of drug levels some time after administration aids clinicians in fine tuning their molecular armamentarium.

Read More thumbnail image: UV or not UV Nilotinib monitoring becomes affordable and accessible
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