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Surface Enhanced Raman Scattering Based On Nanomaterials As Substrate

IP Title

Summary

Raman scattering is the inelastic scattering of photons, and the device described here aims to provide a substrate for Raman scattering detection. The substrate comprises various nanostructures, and metal nanoparticles are arranged on top of the nanostructures. The arrangement of nanoparticles on a nano-based substrate increases the surface area and may yield higher sensitivity, compared to the use of a conventional substrate. This is due to the fact that the size and dimensionality of nanoscale materials give rise to unique properties associated with surface and quantum effects. The nanostructures may be nanowires, nanorods, nanochains, nanoribbons, nanotubes, nanocables, nanowhiskers, nanobelts, or nanosheets.

Technology Application

•Ultrasensitive SERS can be used to detect chemicals, biomaterials and environmental substances
•The technology is relevant to biochips and lab-on-a-chip applications for characterizing specific DNA fragments without using fluorescent or radioactive labels

Application Date

21/04/2008

ID No.

12/106,751

Country/Region

Hong Kong

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