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Lab on a bubble: SERS on spheres

Date: Dec 1, 2011

Author: David Bradley

A new class of materials for surface-enhanced Raman spectroscopy (SERS) consisting of hollow, buoyant silica microspheres coated with gold nanoparticles has been developed. These new materials allow for a novel type of molecular assay designated as a lab-on-a-bubble (LoB).

Read More thumbnail image: Lab on a bubble SERS on spheres

Forensic science: CSI Raman

Date: Nov 1, 2011

Author: David Bradley

Raman spectroscopy and an advanced statistical analysis have now been added to the arsenal of techniques available to law enforcement scientists allowing them to quickly and accurately identify traces of vaginal fluid at a crime scene.

Read More thumbnail image: Forensic science CSI Raman

Journal Highlight: Characterization of oil-producing microalgae using Raman spectroscopy

Date: Oct 31, 2011

Author:

The current status of Raman spectroscopy applications on algae is reviewed, with particular attention to identifying and selecting oil-rich algal strains for the potential mass production of commercial biofuels and for utilization in the food industry.

Read More thumbnail image: Journal Highlight Characterization of oil-producing microalgae using Raman spectroscopy

Journal Highlight: Investigation concerning the applicability of Raman spectroscopy for prospective inline monitoring of electrode processing for lithium ion batteries

Date: Oct 3, 2011

Author:

A portable and cost-effective Raman spectrometer was tested for the inline monitoring of electrode processing using tape-cast LCO foils as examples.

Read More thumbnail image: Journal Highlight Investigation concerning the applicability of Raman spectroscopy for prospective inline monitoring of electrode processing for lithium ion batteries

Serendipitous tuning: Well-stacked graphene

Date: Oct 1, 2011

Author: David Bradley

An accidental discovery at the University of California, Riverside, might allow materials scientists to control the way sheets of the carbon allotrope stack together and so allow them to tune the electrical properties of the material. Raman spectroscopy was used to reveal the stacking order and so may have played a crucial role in the development of graphene nanoelectronics devices of the future.

Read More thumbnail image: Serendipitous tuning Well-stacked graphene

Journal Highlight: Raman spectroscopy of the polymorphic forms and liquid state of cocoa butter

Date: Sep 6, 2011

Author:

Raman spectroscopy was used to characterize the polymorphs and liquid state of cocoa butter, clearly demonstrating that the different functional groups studied could be characterized independently, allowing for the understanding of their role in cocoa butter polymorphism.

Read More thumbnail image: Journal Highlight Raman spectroscopy of the polymorphic forms and liquid state of cocoa butter

Rocky road to confusion: Raman tricks geochemists

Date: Sep 1, 2011

Author: David Bradley

Raman spectroscopy has become an increasingly useful tool in the geosciences partly because it is non-destructive and requires minimal sample preparation, but also because it can be carried out on site with various irreplaceable geological samples. Unfortunately, Raman can confuse, especially when substances such as haematite and disordered carbonaceous materials are present in the same sample.

Read More thumbnail image: Rocky road to confusion Raman tricks geochemists

Journal Highlight: Tunable optical setup with high flexibility for spectrally resolved coherent anti-Stokes Raman scattering microscopy

Date: Aug 8, 2011

Author:

A simplified setup for coherent anti-Stokes Raman scattering microscopy allows for recording images with 30 cm-1 excitation band-width for probing Raman bands between 500 and 900 cm-1 with minimal requirements for alignment.

Read More thumbnail image: Journal Highlight Tunable optical setup with high flexibility for spectrally resolved coherent anti-Stokes Raman scattering microscopy

SNPs at a snip: SERS spots singles

Date: Aug 1, 2011

Author: David Bradley

Surface enhanced Raman spectroscopy can be used to detect single nucleotide substitutions (the all-important SNPs of genetic variance and personalised medicine) in DNA without the need for labels or indeed any chemical modification of the oligonucleotides.

Read More thumbnail image: SNPs at a snip SERS spots singles

Journal Highlight: Revealing the invisible: using SERS to identify minute remnants of color in Winslow Homer's colorless skies

Date: Jul 4, 2011

Author:

SERS spectra were recorded directly on single particles of red lake pigments from an important historical watercolor by the American master Winslow Homer that suffered some degree of fading to reveal accurate colorant identification.

Read More thumbnail image: Journal Highlight Revealing the invisible using SERS to identify minute remnants of color in Winslow Homers colorless skies
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