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Journal Highlight: Fluorescence based platform to discriminate protein using carbon quantum dots

Date: Jun 12, 2019

Author: spectroscopyNOW

A theoretical and experimental study based on carbon quantum dots and metallic ions has been devised for distinguishing proteins by their fluorescence patterns and supported by pattern recognition using linear discriminant analysis.

Read More thumbnail image: Journal Highlight Fluorescence based platform to discriminate protein using carbon quantum dots

Quenching TNT: UV detector

Date: Jun 1, 2019

Author: David Bradley

Ultraviolet-visible (UV-Vis) spectroscopy and fluorescence spectroscopy have been used to test the mettle of two novel fluorescent anthracene-decorated cyclotri- and cyclotetra-phosphazenes in detecting nitroaromatic compounds. Critically, the fluorescence intensities of both compounds are demonstrated to be quenched selectively only by the explosive compound 2,4,6-trinitrotoluene.

Read More thumbnail image: Quenching TNT UV detector

Journal Highlight: Luminescence properties of novel Eu3+‐doped tantalate NaCaTiTaO6 red‐emitting phosphors for solid‐state lighting

Date: May 9, 2019

Author: spectroscopyNOW

Novel tantalate red‐emitting phosphors NaCa1‐xEuxTiTaO6 have been synthesised and characterised as substitute red phosphors for white light‐emitting diodes.

Read More thumbnail image: Journal Highlight Luminescence properties of novel Eu3doped tantalate NaCaTiTaO6 redemitting phosphors for solidstate lighting

Chaos on a grand scale: Extreme ultraviolet

Date: May 1, 2019

Author: David Bradley

Simulations of laser-plasma coupling mechanisms has been opened up by a new three-dimensional particle-in-cell (PIC) tool. Data from extreme-ultraviolet spectroscopy in tests can be underpinned by this new tool and simulation.

Read More thumbnail image: Chaos on a grand scale Extreme ultraviolet

Journal Highlight: Optical characterisation of zinc pyrithione

Date: Apr 11, 2019

Author: spectroscopyNOW

Fluorescence‐lifetime imaging microscopy has been applied to the high‐contrast mapping of the distribution of the shampoo anti-dandruff additive zinc pyrithione on the scalp.

Read More thumbnail image: Journal Highlight Optical characterisation of zinc pyrithione

UV nanowire: NIST boost

Date: Apr 1, 2019

Author: David Bradley

A new, improved shell design for nanowires developed by researchers at the National Institute of Standards and Technology (NIST) gives them an ultraviolet light-emitting diode (LED) that is five times the intensity of comparable LEDs with a conventional shell design.

Read More thumbnail image: UV nanowire NIST boost

Journal Highlight: Detection and quantification of multiple RNA sequences using emerging ultrasensitive fluorescent in situ hybridization techniques

Date: Mar 14, 2019

Author: spectroscopyNOW

Detailed protocols have been described for using the RNAscope and BaseScope to detect RNA transcripts in neuronal tissue, including the extraction of quantitative data from hybridized tissue sections.

Read More thumbnail image: Journal Highlight Detection and quantification of multiple RNA sequences using emerging ultrasensitive fluorescent in situ hybridization techniques

Pure ultraviolet: Graphene emission

Date: Mar 1, 2019

Author: David Bradley

 It is possible to generate near-pure ultraviolet emission from layers of graphene nanosheets, according to a team in China. They explain that near unity charge separation efficiency is key to the pure UV emission in their system.

Read More thumbnail image: Pure ultraviolet Graphene emission

Journal Highlight: Van der Waals effects on structure and optical properties in organic photovoltaics

Date: Feb 14, 2019

Author: spectroscopyNOW

The effects of dispersion forces on the molecular structure and optical properties of the polymer-derivatised fullerene dimer P3HT/PCBM have been examined using Kohn‐Sham DFT and TDDFT calculations.

Read More thumbnail image: Journal Highlight Van der Waals effects on structure and optical properties in organic photovoltaics

Going with the flow: UV control

Date: Feb 1, 2019

Author: David Bradley

Ultraviolet light can be used to control fluid flow as demonstrated by a US team who irradiated gold or titanium dioxide nanoparticles in the presence of larger polystyrene particles and found they could gather those particles at the light spot to form a well-packed colloidal crystal.

Read More thumbnail image: Going with the flow UV control
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