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The purpose of a coloured or fluorescently dyed particle is its visibility with the naked eye or by a detector. By adding a dye to the particle it reduces signal to noise due to the contrast between the particle and its environment. Applications for these particles are countless. By modifying the surface of the particles, antibodies or proteins can be conjugated to their surfaces, making them ideally suited for diagnostic assay development, for instance for lateral flow assay development. We offer coloured and fluorescent dyed microspheres from Thermo Scientific, VDo Biotech and Applied Microspheres.


Polymer microspheres are a major component in commercially available diagnostic tests. To facilitate binding proteins or antibodies to their surfaces, different surface chemistries are available, suitable for all commonly used conjugation protocols. Dyed microspheres are available for visual detection methods and fluorescently dyed microspheres for devices using fluorescence as a method of detection.

Image analysis, flow tracing and biological research, visualization and inspection testing

  • Item no: R0100
  • Product: Dyed and Fluorescent Particles
  • Particle Size: 1 µm
  • Concentration: 1%
  • Composition: Polystyrene
  • Surface Modification: n/a
  • Volume / Quantity: 10 mL
  • Color: FL-RED
  • NIST Traceable: NO
  • (Key) application: Life science and diagnostic research
  • (Sub) application: Image analysis, flow tracing and biological research, visualization and inspection testing
  • Application L1: Visualisation studies
  • Application L2: Fluorescent detection
  • Brand: Thermo Scientific

Additional information

Item no

Particle Size



Surface Modification

Volume/ Quantity


NIST Traceable

Key Application

(Sub) Application

Application L1

Application L2



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