raman spectrometer testing sample

Surface Enhanced Raman Spectroscopy (SERS)

Surface enhanced Raman spectroscopy is a surface treatment technology that enhances the Raman scattering efficiency in which molecules are absorbed on a nanostructure surface such as plasmonic-magnetic silica nanotubes or Au/Ag based nano-treated surface. The enhancement factor can be as much as 103-1012, which means the limit of detection, may be down to single molecules.

SERS is a “hot” technology with groundbreaking cancer detection and screening in biomedical applications, low concentration monitoring of water quality control in environment pollution protection, target component discovery of additive or contaminants in the food industry and forensic science as well detecting illegal drugs contained in suspicious samples.

Products

TAP

Silver P-SERS substrates

i-Raman® Prime

High throughput, Highly Sensitive, High Resolution Raman System

TacticID® N Plus – BWT-840000994

Handheld Analyzer for Narcotics Identification

i-Raman® EX

1064nm Fiber Optic Raman System

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Application Notes

This app note discusses the modes of operation and library capabilities for the TacticID product family, including an A mode for advanced users to customize their individual library spectra for spectral search range and hit quality index (HQI) threshold
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Surface enhanced Raman spectroscopy (SERS) has attracted significant attention in recent years due to rising interest in trace level detection in the field for applications such as environmental safety, food safety, and homeland security. The development of SERS technology is being driven by a need to overcome the technical barrier of the lower detection limit with Raman spectroscopy as well as the need for trace level detection of explosive compounds, chemical residuals, and biomedical diagnostics.
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In recent research published in Scientific Reports, B&W Tek’s NanoRam® handheld Raman spectrometer was utilized in a study on programmable SERS active substrates for chemical and biosensing applications using amorphous/crystalline hybrid silicon nanomaterial. The study investigated the ability to create a Raman active nanomaterial from an inactive Raman bulk material with successful results.
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Quality control in the food industry is a key issue that requires rapid, efficient and selective methods that could discriminate the products, detect fraudulent or accidental adulterations, and identify the content of some biomarkers within a particular process of storage conditions. For this, Raman spectroscopy in conjunction with the optical properties of metallic nanostructures is a powerful technique that can be implemented in food analysis.
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The emergence of counterfeit prescription drugs has become a concern for the pharmaceutical industry. Counterfeit drugs are fraudulently manufactured and/or mislabeled to appear genuine. Due to the prevalence of these potentially dangerous counterfeits, it is necessary to develop a technique that can quickly confirm the identity of a suspected fake drug.
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This app note discusses the modes of operation and library capabilities for the TacticID product family, including an A mode for advanced users to customize their individual library spectra for spectral search range and hit quality index (HQI) threshold
Read the full application note
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