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Systematic nano Raman

Date: Jul 1, 2009

Author: David Bradley

Scientists in Israel and the US have demonstrated systematic differences in the Raman spectra of individual molecules adsorbed on small as opposed to large nanoparticles. The discovery has the potential to open up a new approach to single molecule studies.

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Nano cancer killers

Date: Jun 1, 2009

Author: David Bradley

Carbon nanotubes can allow Raman spectroscopy to be used as a technique for real-time detecting, tracking, and, with laser assistance, even killing cancer cells, according to researchers in the US.

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Biochemical correlation of Raman spectra of normal, benign and malignant breast tissues: A spectral deconvolution study

Date: Jun 1, 2009

Author:

Spectral features and biochemical changes in normal, fibroadenoma and infiltrating ductal carcinoma of breast tissues measured using Raman spectra have been correlated using spectroscopic models developed earlier.

Read More thumbnail image: Biochemical correlation of Raman spectra of normal benign and malignant breast tissues A spectral deconvolution study

Spectral measurements of large particles by flow cytometry

Date: May 4, 2009

Author:

A commercial large particle analyzer has been adapted to measure fluorescence and Raman spectra of individual particles at high speeds, enabling new applications in biological and chemical analyses.

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ELISA meet SERRS

Date: May 1, 2009

Author: David Bradley

Surface-enhanced resonance Raman scattering could be used to quickly spot the telltale signs of prostate cancer at the molecular level, according to a British team. This is the first use of a well-known ELISA colorimetric substrate as a SERRS marker.

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Reference database of Raman spectra of pharmaceutical excipients

Date: Apr 6, 2009

Author:

A collection of Raman spectra of 43 widely used pharmaceutical excipients is presented, which can serve as a reference for the interpretation of Raman spectra during drug analysis.

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Sensitive SERS beats ELISA

Date: Apr 1, 2009

Author: David Bradley

Scientists in South Korea have developed a new magnetic approach to immunoassay detection of important biological marker compounds and antigens using surface-enhanced Raman spectroscopy (SERS) of hollow gold nanospheres. The technique is not only much faster than standard assays but up to 1000 times more sensitive.

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Disease recognition by infrared and Raman spectroscopy

Date: Mar 2, 2009

Author:

Infrared and Raman spectroscopy are emerging biophotonic tools to recognize various diseases. This review gives an overview of the experimental techniques, data-classification algorithms and applications to assess soft tissues, hard tissues and body fluids.

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Sperm assessment

Date: Mar 1, 2009

Author: David Bradley

Raman spectroscopy could enable fertility researchers and IVF clinicians to assess individual sperm. The process involves capturing an individual sperm cell between two highly focused beams of laser light with Raman pinning down features of the trapped wriggler's DNA.

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Surface-enhanced Raman scattering spectroscopy via gold nanostars

Date: Feb 2, 2009

Author:

The SERS activities of star-shaped gold nanoparticles tested using 2-mercaptopyridine and crystal violet probing molecules were stronger than that of spherical gold nanoparticles if similar size.

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