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Thermo Scientific™ Fluoro-Max Dyed Blue Aqueous Fluorescent Particles

Achieve improved sensitivity and detectability in analytical methods with internally dyed microspheres that feature bright, high-contrast colors.

Manufacturer:  Thermo Scientific™ B500B

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Catalog No. 09-980-497

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Achieve improved sensitivity and detectability in analytical methods with Thermo Scientific™ Fluoro-Max Blue Aqueous Fluorescent Particles, internally dyed microsphere suspensions that feature bright, high-contrast colors.

Fluoro-max fluorescent particles emit bright and distinct colors when illuminated by the light of shorter wavelengths than the emission wavelength. This improves their contrast and visibility relative to background materials. These internally dyed polymer particles utilize the exclusive Firefli™ process to incorporate the dye throughout the polymer matrix to produce bright fluorescent colors, minimize photo bleaching and prevent dye leaching into aqueous media.
  • Made of polystyrene (PS)
  • Density of 1.05 g/cm3 and a refractive index of 1.59 @ 589nm (25°C).
  • Packaged as 1% solids
  • Can be detected with an epifluorescence microscope, confocal microscope, fluorometer, fluorescence spectrophotometer or fluorescence activated cell sorter
  • Can also be detected using mineral light or black light (UV)

Spectral information is approximate and for reference only. The spectral properties of the dyes are dependent on their concentration and physical environment.The exact excitation and emission maxima may vary depending on the size and composition of the particles.

Recommended for:

  • Filter testing
  • Flow tracing
  • Biological research


0.50 μm
1% solids
0.50 μm
Package Insert Sheet
1.59 at 589nm (25°C)
Firefli Fluorescent Blue (365,388,412/ 445,445,473)
Trace amounts of surfactant to inhibit agglomeration and promote stability
Dyed polystyrene microspheres in water
0.5 μm
90 mL
Product stable for a minimum of 24 months
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