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Fluoresbrite® carboxylate microspheres are fluorescent monodispersed polystyrene microspheres that have carboxylate groups on their surfaces which can be activated for the covalent coupling of proteins. Polysciences’ Fluoresbrite® particles are used worldwide in phagocytosis and neural retrograde transport studies, and as markers for cell bound antigens. These microspheres are packaged in 2.5% aqueous suspensions.

Nominal Reference Values:

• 0.50µm particles packaged as 2.5% aqueous suspension.
• 3.64 x 10¹¹ particles/ml
• Diameter Coefficient of Variation (CV) = 3%
• 441nm Excitation; 486nm Emission