Composite organic-inorganic nanoparticles (COINs) with chemically encoded optical signatures.

Su, Xing; Zhang, Jingwu; Sun, Lei; Koo, Tae-Woong; Chan, Selena; Sundararajan, Narayan; Yamakawa, Mineo; Berlin, Andrew A · Nano Lett · 2005

basic_science · Level V

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Abstract

To obtain a coding system for multiplex detection, we have developed a method to synthesize a new type of nanomaterial called composite organic-inorganic nanoparticles (COINs). The method allows the incorporation of a broad range of organic compounds into COINs to produce surface enhanced Raman scattering (SERS)-like spectra that are richer in variety than fluorescence-based signatures. Preliminary data suggest that COINs can be used as Raman tags for multiplex and ultrasensitive detection of biomolecules.

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