Core shell Ag@SiO 2-Streptavidin-Cy3 nanoparticles were prepared. Ag@SiO 2 nanoparticles were synthesized via a solgel method. Then, Streptavidin-Cy3 was covalently bonded to the Ag@SiO 2 surface. These core-shell nanoparticles were characterized by steady-state fluorescence spectroscopy and fluorescence scanning. In presence of the silver core, a 2.5-time enhancement of Cy3 fluorescence intensity was obtained. This result shows that these nanoparticles can be potentially helpful in surface analysis based on biochip. © 2012 World Scientific Publishing Company.
- Ag@SiO 2
- Surface enhancement
Sui, N., Monnier, V., Yang, Z., Chevolot, Y., Laurenceau, E., Souteyrand, E., & Dugas, V. (2012). Preparation of core-shell silver/silica nanopaticles and their application for enhancement of cyanine 3 fluorescence. International Journal of Nanoscience, 11(4), . https://doi.org/10.1142/S0219581X12400200