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Journal Highlight: Wide‐range tuning and enhancement of organic long‐persistent luminescence using emitter dopants

Date: Sep 10, 2018

Author: spectroscopyNOW

The characteristics of emissions from organic long‐persistent luminescent systems have been improved by the addition of doping emitter molecules, enabling the development of a wide range of organic glow‐in‐the‐dark paints.

Read More thumbnail image: Journal Highlight Widerange tuning and enhancement of organic longpersistent luminescence using emitter dopants

Safe UV: Savages Staph on syringes

Date: Sep 1, 2018

Author: David Bradley

 A narrow band of ultraviolet, considered safe for human skin has been shown to be very effective at killing drug-resistant pathogens. Delivered through fibre optics, this wavelength of UV could be useful in warding off infections caused by skin piercing and other medical devices.

Read More thumbnail image: Safe UV Savages Staph on syringes

Journal Highlight: Reversible switching between phosphorescence and fluorescence in a unimolecular system controlled by external stimuli

Date: Aug 6, 2018

Author: spectroscopyNOW

A dual‐emissive hexathiobenzene‐based molecule has been reported with significant aggregation‐induced phosphorescence characteristics and reversible switching among blue, green, and yellow phosphorescence that will help to develop smart materials and intelligent optoelectronic devices.

Read More thumbnail image: Journal Highlight Reversible switching between phosphorescence and fluorescence in a unimolecular system controlled by external stimuli

Tethered DNA nanorods: UV lines them up

Date: Aug 1, 2018

Author: David Bradley

A combination of ultraviolet-visible (UV-Vis) spectroscopy and small-angle X-ray scattering have been used to investigate how DNA "linker" strands can coax nano-sized rods to line up in a manner unlike any other spontaneous arrangement of rod-shaped objects.

Read More thumbnail image: Tethered DNA nanorods UV lines them up

Journal Highlight: Breaking the axial diffraction limit: A guide to axial super‐resolution fluorescence microscopy

Date: Jul 9, 2018

Author: spectroscopyNOW

A comprehensive summary of the principles, development, characteristics and applications of existing techniques for improving the axial resolution in axial super-resolution fluorescence microscopy has been presented.

Read More thumbnail image: Journal Highlight Breaking the axial diffraction limit A guide to axial superresolution fluorescence microscopy

Ultraviolet in stereo: Photoelectric effect

Date: Jul 1, 2018

Author: David Bradley

Ultraviolet can assist understanding the photoelectric effect whereby a photon incident on a material causes the ejection of an electron from that material. Researchers in Swizterland have now used attosecond laser pulses to measure the time evolution of this effect in molecules and so can deduce the exact location of such photoionization events.

Read More thumbnail image: Ultraviolet in stereo Photoelectric effect

Journal Highlight: Synthesis of antimony trioxide crystals with various morphologies and their UV‐Vis‐NIR reflectance performance

Date: Jun 11, 2018

Author: spectroscopyNOW

Antimony trioxide crystals with various morphologies have been synthesized and characterized and the UV‐Vis‐NIR reflectance performances of the different shaped crystals were evaluated.

Read More thumbnail image: Journal Highlight Synthesis of antimony trioxide crystals with various morphologies and their UVVisNIR reflectance performance

Unravelling spider silk: UV technique weaves the clues

Date: Jun 1, 2018

Author: David Bradley

Scientists at RIKEN in Japan have used far-UV circular dichroism spectroscopy and other techniques to reveal the underlying mechanism of spider silk formation. The research could help materials scientists weave biomimetic versions of this natural material which is both stronger and more flexible weight-for weight than steel.

Read More thumbnail image: Unravelling spider silk UV technique weaves the clues

Journal Highlight: Surface molecular imprinting polymers based on ZnO quantum dots as fluorescence sensor detection of diethylhexyl phthalate with high sensitivity and selectivity

Date: May 7, 2018

Author: spectroscopyNOW

Molecularly imprinted polymers with zinc oxide quantum dots have been prepared for the selective fluorescence detection of diethylhexyl phthalate in environmental samples.

Read More thumbnail image: Journal Highlight Surface molecular imprinting polymers based on ZnO quantum dots as fluorescence sensor detection of diethylhexyl phthalate with high sensitivity and selectivity

Earthly delights: Ultraviolet quantum dots

Date: May 1, 2018

Author: David Bradley

Can scientists use earthworms to make quantum dots? That is a question answered in the positive by researchers from Iran who have used ultraviolet-visible spectroscopy and photoluminescence analysis to confirm the unique absorption and luminescence properties of their products.

Read More thumbnail image: Earthly delights Ultraviolet quantum dots
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