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Journal Highlight: The thermal stability of graphene in air investigated by Raman spectroscopy

Date: Aug 5, 2013

Author: spectroscopyNOW

The thermal stability in air of graphene synthesized by either chemical vapor deposition or mechanical cleavage is studied, which will be useful for guiding future electronics process and chemical decoration of graphene.

Read More thumbnail image: Journal Highlight The thermal stability of graphene in air investigated by Raman spectroscopy

Nanotech enhancement: Gold rush

Date: Aug 1, 2013

Author: David Bradley

It is possible to tune gold nanoparticles with peptides for surface-enhanced Raman spectroscopy (SERS) in such a way as to side step the problematic stages inherent to other approaches to nanoplasmonic structures for analyte detection, according to Italian researchers.

Read More thumbnail image: Nanotech enhancement Gold rush

Journal Highlight: Nanoscale chemical imaging using tip-enhanced Raman spectroscopy: A critical review

Date: Jul 2, 2013

Author: spectroscopyNOW

This review focuses on the prerequisites for the efficient coupling of light to the tip as well as the shortcomings and pitfalls that have to be considered for tip-enhanced Raman spectroscopy imaging, for its application to nanoscale analysis.

Read More thumbnail image: Journal Highlight Nanoscale chemical imaging using tip-enhanced Raman spectroscopy A critical review

Portable infection: SERS detection

Date: Jul 1, 2013

Author: David Bradley

The optical technique of surface-enhanced Raman scattering (SERS) has been used to detect signs of infection in tissue samples before patients even show symptoms of viral disease. The system could be further developed into a portable lab-on-a-chip (LoC) devices for use in the clinic with potential for applications in the developing world.

Read More thumbnail image: Portable infection SERS detection

Journal Highlight: In vivo probing of the temperature responses of intracellular biomolecules in yeast cells by label-free Raman microspectroscopy

Date: Jun 3, 2013

Author: spectroscopyNOW

The in vivo probing, achieved with label-free Raman microspectroscopy, of the temperature responses of major intracellular components such as lipids and proteins in living fission yeast cells is presented.

Read More thumbnail image: Journal Highlight In vivo probing of the temperature responses of intracellular biomolecules in yeast cells by label-free Raman microspectroscopy

Algorithmic Raman: Improved breast diagnostics

Date: Jun 1, 2013

Author: David Bradley

A newly developed, single-step algorithm for processing Raman spectra can reveal the presence of microcalcifications in breast tissue that are often associated with breast cancer lesions and so improve the precision of diagnosis of the disease itself at the early stages without multiple biopsies of suspicious lumps.

Read More thumbnail image: Algorithmic Raman Improved breast diagnostics

TNT, meet graphene: Explosive sensor

Date: May 1, 2013

Author: David Bradley

Another chemical pie in which graphene has its lacy carbon fingers is in the form of a sensitive and selective detection system for the common explosive trinitrotoluene (TNT). Silver nanoparticles functionalised with p-aminothiophenol (PATP) and supported on graphene sheets allow the straightforward surface-ehanced Raman spectroscopic SERS) detection of the explosive.

Read More thumbnail image: TNT meet graphene Explosive sensor

Journal Highlight: Graphene: A platform for surface-enhanced Raman spectroscopy

Date: Apr 29, 2013

Author: spectroscopyNOW

The multi-role of graphene played in SERS is overviewed, including as a Raman probe, a substrate, an additive, and a building block for a flat surface for SERS.

Read More thumbnail image: Journal Highlight Graphene A platform for surface-enhanced Raman spectroscopy

Journal Highlight: Trace level detection and identification of nitro-based explosives by surface-enhanced Raman spectroscopy

Date: Apr 1, 2013

Author: spectroscopyNOW

Surface-enhanced Raman spectroscopy has been used to detect and identify traces of pentaerythritol tetranitrate (PETN), ethylene glycol dinitrate (EGDN), cyclotrimethylene-trinitramine (RDX) and trinitrotoluene (TNT) using commercially available substrates.

Read More thumbnail image: Journal Highlight Trace level detection and identification of nitro-based explosives by surface-enhanced Raman spectroscopy

Unearthing water's deep structure: Raman revelations

Date: Apr 1, 2013

Author:

Raman X-ray scattering has been used by a German-Finnish-French collaboration to investigate the behaviour of water subjected to the kinds of high pressures and temperatures it experiences deep within the Earth.

Read More thumbnail image: Unearthing waters deep structure Raman revelations
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