Surface Enhanced Raman
Nanoparticle enhanced Raman sensors
What is SERS?
Raman Spectroscopy is a powerful technique that is used to identify a wide range of chemical and biological species. Applications range from detection of narcotics, chemical pollutants, analysis of food stuffs to the development of new pharmaceuticals.
Surface Enhanced Raman uses the plasmonic properties of nanostructured metals to boost the sensitivity of Raman spectroscopy to enable detection of ppm and ppb levels. Nanostructured gold and silver both offer enhanced Raman signals. In spite of the success of SERS there is still a need for cheap, reliable and sensitive point of use diagnostics.
Applications of SERS
Surface Enhanced Raman Sensors
Nikalyte has developed SERS technology combining state of the art sensitivity with low cost and flexibility.
Using Nikalyte’s signature vacuum nanoparticle deposition technique we have demonstrated ppb level detection sensitivity for analytes including caffeine, Heroin, Fentanyl and Amphetamine. Unlike nanoparticles synthesized chemically our vacuum nanoparticles are ultra-pure and both hydrocarbon and ligand free. The bare nanoparticles have more free bonds at the surface to bind with the target analyte, thus enhancing detection sensitivity.
The line of sight deposition process enables uniform nanoparticle coating of both textured and planar substrates. Deposition also occurs at room temperature thus enabling a wide choice of substrates including filter paper, plastic and glass.
You can now try out Nikalyte’s SERS substrates in your own lab. Visit our online portal to order your substrates from as little at £5 per substrate
Raman detection of Narcotics
Nikalyte gold SERs substrates show high sensitivity and high specificity for the detection of narcotics such as Fentanyl, Heroin, MDMA, Methamphetamine and Amphetamine.
Fundamental Raman Research
Nanoparticle size control
Prepare crystalline nanoparticles of different sizes using the NL50. Gold nanoparticles are a perfect candidate for SERS due to their combination of well documented optical properties, biocompatability and long term stability to oxidation. The NL50 is ideally suited to the research and development of nanoparticle SERS, where researchers can explore the effects of nanoparticle properties on the sensor performance.