Project Description

Polystyrene Fluorescent Microspheres

EPRUI supplies polystyrene fluorescent microspheres with high fluorescence intensity, stable performance and narrow particle size distribution. Colored polystyrene microspheres are also available.

Our polystyrene fluorescent microspheres can be used for a wide range of applications including medical diagnosis, blood flow determination, tracing, in vivo imaging, calibration of imaging and flow cytometry instruments. Our dyes are incorporated throughout the bead and not just on the surface, so they are relatively immune to photobleaching and other environmental factors. Dyes leak will not happen even after high-speed centrifugation. Carboxylated microbeads have a high density of homogeneous distribution of carboxylic acids on the surface, which makes carbodiimide (EDAC) and other water-soluble imine reagents covalently coupled protein and other amino-containing biomolecules easy to pass.

Features

  1. Dye molecules are incorporated throughout the bead making fluorescent signals more stable.
  2. 10% of dye concentration making sure high fluorescence intensity and brightness.
  3. Highly uniform particle size (CV<5%).Small batch difference and good repeatability.
  4. Customization of different functional groups and particle size (20nm-100um) is accepted.

Green Fluorescent Microspheres

ModelAPSAppearanceFunctional GroupsDensityRefractive IndexExcitation WavelengthEmission WavelengthConcentration
EPRUI-GF-100C100nmHighlight Green Fluorescence-COOH1.05g/cm3[email protected](25℃)488nm525nm1%
EPRUI-GF-200C200nm
EPRUI-GF-300C300nm
EPRUI-GF-400C400nm
EPRUI-GF-500C500nm

Storage: 2-8℃, Avoid Light.

Red Fluorescent Microspheres

ModelAPSAppearanceFunctional GroupsDensity
(g/cm3)
Refractive IndexExcitation WavelengthEmission WavelengthConcentration
EPRUI-RF-100C100nmHighlight Red Fluorescence-COOH1.05[email protected] (25℃)535nm610nm1%
EPRUI-RF-200C200nm
EPRUI-RF-300C300nm
EPRUI-RF-400C400nm
EPRUI-RF-500C500nm

Storage: 2-8℃, Avoid Light.

Rare Earth Fluorescent Microspheres or Time Resolved Fluorescent Microspheres

ModelAPSAppearanceFunctional GroupsDensity
(g/cm3)
Refractive IndexExcitation WavelengthEmission WavelengthConcentration
EPRUI-REF-80C80nmRare Earth Fluorescence
Or Time Resolved Fluorescence
-COOH1.05[email protected] (25℃)488nm525nm1%
EPRUI-REF-100C100nm
EPRUI-REF-160C160nm
EPRUI-REF-200C200nm
EPRUI-REF-300C300nm
EPRUI-REF-400C400nm

Storage: 2-8℃, Avoid Light.

Applications

  1. Medical Diagnosis
  2. Flow Cytometry Calibration
  3. Blood Flow Determination & Tracing
  4. Imaging Calibration
  5. In vivo Imaging

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