Our fluorescently labelled and functionalized silicon dioxide particles (SiO2-Fluo) are prepared by incorporation of blue, green, orange, and red fluorescent dyes and come with either carboxyl or amino functions covalently coupled to the particle surfaces.
Our established, optimized sol-gel process allows for the manufacture of particles with favorable properties, such as
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• high monodispersity (CV < 5 %),
• spherical shape,
• brilliant and bright fluorescence,
• minimized dye leaching into the surrounding media (aqueous as well as organic), and
• high load of functional groups.

The applied dyes are homogeneously distributed throughout the particle volume.
The products are available as 2,5 % w/v aqueous suspensions. Upon request, dry powders are possible as well (separate prices and lead times).