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Journal Highlight: A database of Raman spectra of precious gemstones and minerals used as cut gems obtained using portable sequentially shifted excitation Raman spectrometer

Date: Nov 26, 2018

Author: spectroscopyNOW

Raman spectra of 42 minerals such as chrysoberyl, diamond, emerald, garnet, ruby and topaz that are used as gemstones in gemmology or works of art have been recorded using a portable sequentially shifted excitation Raman spectrometer.

Read More thumbnail image: Journal Highlight A database of Raman spectra of precious gemstones and minerals used as cut gems obtained using portable sequentially shifted excitation Raman spectrometer

Coloured eggshells: Raman traces dinosaur egg pigmentation

Date: Nov 1, 2018

Author: David Bradley

Raman spectroscopy has been used to demonstrated that adding pigment to eggs evolved only once and in the dinosaurs and the process is the same as used by the many thousands of bird species we see around the world today.

Read More thumbnail image: Coloured eggshells Raman traces dinosaur egg pigmentation

Journal Highlight: PIP2‐induced tau filaments probed by tip‐enhanced Raman spectroscopy

Date: Oct 29, 2018

Author: spectroscopyNOW

Tip‐enhanced Raman spectroscopy has been used for the first nanoscale structural characterization of Tau protein fragment/phospholipid aggregates, which may be implicated in deleterious mechanisms on neural membranes in Alzheimer's disease.

Read More thumbnail image: Journal Highlight PIP2induced tau filaments probed by tipenhanced Raman spectroscopy

Journal Highlight: Discrimination between infant and adult bloodstains using micro‐Raman spectroscopy: A preliminary study

Date: Oct 1, 2018

Author: spectroscopyNOW

Micro‐Raman spectroscopy with high‐resolution analysis has been used to discriminate between bloodstains from infants and adults based on signals from haemoglobin.

Read More thumbnail image: Journal Highlight Discrimination between infant and adult bloodstains using microRaman spectroscopy A preliminary study

Carbon dioxide to fuel: SERS reveals all

Date: Oct 1, 2018

Author: David Bradley

Surface-enhanced Raman spectroscopy reveals how carbon dioxide is activated chemically at the electrode-electrolyte interface offering a solution to a 150-year old puzzle and potentially leading the way to a rational approach to converting the greenhouse gas into renewable energy storage materials.

Read More thumbnail image: Carbon dioxide to fuel SERS reveals all

Journal Highlight: Three‐dimensional Raman tomographic microspectroscopy: A novel imaging technique

Date: Sep 3, 2018

Author: spectroscopyNOW

Nondestructive 3D Raman tomographic imaging experiments have been conducted on terrestrial and extraterrestrial samples to provide spatial distributions of chemical constituents from the interior of the samples with high spatial and depth resolution.

Read More thumbnail image: Journal Highlight Threedimensional Raman tomographic microspectroscopy A novel imaging technique

Nano-actuator: SERS benefits

Date: Sep 1, 2018

Author: David Bradley

Surface-enhanced Raman spectroscopy (SERS) and related techniques could benefit from the development of a novel nanoactuator system, where conformation of biomolecule can be tuned by electric field and probed using optical properties of gold nanoparticle.

Read More thumbnail image: Nano-actuator SERS benefits

The big antifreeze: Raman thaws out the science

Date: Aug 1, 2018

Author: David Bradley

Simulated Raman spectroscopy has provided new insights into how antifreeze proteins, which have been known about for decades, actually work to keep alive animals such as fish and insects despite many living in temperatures that would otherwise frees their bodily fluids.

Read More thumbnail image: The big antifreeze Raman thaws out the science

Journal Highlight: Exploring street art paintings by microspatially offset Raman spectroscopy

Date: Jul 30, 2018

Author: spectroscopyNOW

Microspatially offset Raman spectroscopy has been used to identify the chemical composition of subsurface layers in real, street art murals.

Read More thumbnail image: Journal Highlight Exploring street art paintings by microspatially offset Raman spectroscopy

Journal Highlight: SERS detection of food contaminants by means of portable Raman instruments

Date: Jul 2, 2018

Author: spectroscopyNOW

In this review, a selection of the SERS substrates that are expected to be more suitable for portable instruments has been presented and the current range of portable Raman instruments in the SERS detection of food contaminants has been discussed.

Read More thumbnail image: Journal Highlight SERS detection of food contaminants by means of portable Raman instruments
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