Synthesis of high fluorescent SilicaNanoparticles

two fluorescent dyes before adding to solution 1

Both dyes add into solution 1

solution purged with gas while stirring

Ultrasonic bath to separate organic compounds from SiO2

Ultracentrifugation of the Nanoparticle Solution with 6000 rpm

Filtration of the Nanoparticles from Solution

yellow, high fluorescent SiO2 Nanoparticles in Solution