Fluoresbrite® Polychromatic Red Microspheres 1.0µm

Fluoresbrite® Polychromatic Red Microspheres will fluoresce in different colors, depending on
the light source and filters used. When viewed under a UV light source, the beads will appear
as vivid orange. Microscopic viewing using a 475-490nm filter shows an extremely bright red
fluorescence, while use of a 545-610nm filter yields a yellow fluorescence with excitation maxima
of 491nm and 512nm and emission maxima at 554nm.

Nominal Reference Values:
1.00µm particles packaged as 2.5% aqueous suspension.
4.55 x 10¹⁰ particles/ml

Fluorescence:

• Vivid orange under UV
• Bright red under 475-490nm filter
• Yellow under 545-610nm filter