Polymer Microspheres

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  1. Polybead® Carboxylate Blue Dyed Microspheres 6.00μm

    Polybead® Carboxylate Blue Dyed Microspheres 6.00μm

    Starting at: $286.00

    Polysciences is the leading supplier of dyed microspheres to the latex agglutination and membrane-enhanced immunoassay marketplace. Diagnostic manufacturers rely on our precisely controlled particle synthesis to ensure reproducibility in both assay design and performance.

    Learn More
  2. Polybead® Black Dyed Microspheres  0.50µm

    Polybead® Black Dyed Microspheres 0.50µm

    Starting at: $154.00

    Use for applications including:

    • Flow tests
    • Filter tests
    • Diagnostic tests
    • Optical and electronic instrument testing and calibration
    • Packaged as a 2.5% aqueous solution in a convenient dropper bottle.
    Learn More
  3. Polybead® Black Dyed Microspheres 6.00µm

    Polybead® Black Dyed Microspheres 6.00µm

    Starting at: $186.00

    Use for applications including:

    • Flow tests
    • Filter tests
    • Diagnostic tests
    • Optical and electronic instrument testing and calibration

    Packaged as a 2.5% aqueous solution in a convenient dropper bottle.

    Learn More
  4. Polybead® Black Dyed Microspheres 3.00µm

    Polybead® Black Dyed Microspheres 3.00µm

    Starting at: $192.00

    Use for applications including:

    • Flow tests
    • Filter tests
    • Diagnostic tests
    • Optical and electronic instrument testing and calibration

    Packaged as a 2.5% aqueous solution in a convenient dropper bottle.

    Learn More
  5. Polybead® Black Dyed Microspheres 10.00µm

    Polybead® Black Dyed Microspheres 10.00µm

    Starting at: $224.00

    Use for applications including:

    • Flow tests
    • Filter tests
    • Diagnostic tests
    • Optical and electronic instrument testing and calibration

    Packaged as a 2.5% aqueous solution in a convenient dropper bottle.

    Learn More
  6. Fluoresbrite® 273 Carboxylate Microspheres  1.75µm.

    Fluoresbrite® 273 Carboxylate Microspheres 1.75µm.

    Starting at: $147.00

    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.

    Learn More
  7. Fluoresbrite® 763 Carboxylate Microspheres  1.75µm

    Fluoresbrite® 763 Carboxylate Microspheres 1.75µm

    Starting at: $154.00

    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.

    Nominal Reference Values:

    • 1.75µm particles packaged as 2.5% aqueous suspension.
    • 2.5997 x 1010 particles/ml
    • 763nm Excitation
    • 820nm Emission
    Learn More
  8. Fluoresbrite® 641 Carboxylate Microspheres  1.75µm

    Fluoresbrite® 641 Carboxylate Microspheres 1.75µm

    Starting at: $154.00

    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.

    Nominal Reference Values:

    • 1.75µm particles packaged as 2.5% aqueous suspension.
    • 2.5997 x 1010particles/ml
    • 641nm Excitation
    • 662nm Emission
    Learn More
  9. Fluoresbrite® 641 Carboxylate Microspheres 0.50µm

    Fluoresbrite® 641 Carboxylate Microspheres 0.50µm

    Starting at: $154.00

    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.

    Nominal Reference Values:

    • 0.50µm particles packaged as 2.5% aqueous suspension.
    • 3.64 x 1011 particles/ml
    • 641nm Excitation
    • 662nm Emission
    Learn More
  10. Fluoresbrite® 763 Carboxylate Microspheres 0.50µm

    Fluoresbrite® 763 Carboxylate Microspheres 0.50µm

    Starting at: $154.00

    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.

    Nominal Reference Values:

    • 0.50µm particles packaged as 2.5% aqueous suspension.
    • 3.64 x 1011 particles/ml
    • 763nm Excitation
    • 820nm Emission
    Learn More
  11. Fluoresbrite® 273 Carboxylate Microspheres 0.50µm

    Fluoresbrite® 273 Carboxylate Microspheres 0.50µm

    Starting at: $154.00

    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.

    Nominal Reference Values:

    • 0.50µm particles packaged as 2.5% aqueous suspension.
    • 3.64 x 1011 particles/ml
    • 273nm Excitation
    • 354nm Emission
    Learn More
  12. Fluoresbrite® YO Carboxylate Microspheres 1.00µm

    Fluoresbrite® YO Carboxylate Microspheres 1.00µm

    Starting at: $263.00

    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 as 2.5% aqueous suspensions. YO has limited water solubility, and some leaching may occur with rigorous washing.

    Learn More
  13. anti-Mouse lgG (H&L) Blue Dyed Microspheres

    anti-Mouse lgG (H&L) Blue Dyed Microspheres

    Starting at: $370.00

    Protein conjugated microspheres are offered as: antibodies, Protein A, and Protein G covalently coupled to fluorescent YG, non-fluorescent, and blue dyed polystyrene microspheres. Antibody conjugated microspheres can be used to detect trace amounts of specific antigens in solution and to deplete them from solution. Microspheres coupled with Protein A and Protein G will bind to the Fc portion of antibodies raised in most mammals.

    Learn More
  14. Fluoresbrite® Carboxylate Color Range Kit II

    Fluoresbrite® Carboxylate Color Range Kit II

    Starting at: $323.00

    Kit contains 1ml each of 0.50µm Fluoresbrite® monodisperse microspheres (2.5% solids in water) containing dyes with these excitation maxima: 273nm, 360nm, 441nm, 529nm, 641nm and 763nm.

    Components of this kit are also available individually.

    Learn More
  15. Fluoresbrite® YG Carboxylate Size Range Kit I

    Fluoresbrite® YG Carboxylate Size Range Kit I

    Starting at: $407.00

    Polysciences’ Size Range Kits allow you to evaluate which fluorescent particle size performs optimally for your specific application. These yellow green (YG) beads are economically packaged in 1ml volumes.

    Kit contains 1ml of Fluoresbrite® monodisperse microspheres (2.5% solids in water) for each of these nominal sizes: 0.10µm, 0.20µm, 0.50µm, 0.75µm and 1.0µm.

    Learn More
  16. Fluoresbrite® YG Carboxylate Size Range Kit II

    Fluoresbrite® YG Carboxylate Size Range Kit II

    Starting at: $437.00

    Polysciences’ Size Range Kits allow you to evaluate which fluorescent particle size performs optimally for your specific application. These yellow green (YG) beads are economically packaged in 1ml volumes.

    Kit contains 1ml of Fluoresbrite® monodisperse microspheres (2.5% solids in water) for each of these nominal sizes: 1.75µm, 2.0µm, 3.0µm, 4.5µm and 6.0µm.

    Learn More
  17. Fluoresbrite® Carboxylate Color Range Kit I

    Fluoresbrite® Carboxylate Color Range Kit I

    Starting at: $595.00

    Kit contains 1ml each of 1.75µm Fluoresbrite® monodisperse microspheres (2.5% solids in water) containing dyes with these excitation maxima: 273nm, 360nm, 441nm, 529nm, 641nm and 763nm.

    Components of this kit are also available individually.

    Learn More
  18. anti-Mouse lgG (H&L) Fluoresbrite® YG Microspheres

    anti-Mouse lgG (H&L) Fluoresbrite® YG Microspheres

    Starting at: $370.00

    Protein conjugated microspheres are offered as: antibodies, Protein A, and Protein G covalently coupled to fluorescent YG, non-fluorescent, and blue dyed polystyrene microspheres. Antibody conjugated microspheres can be used to detect trace amounts of specific antigens in solution and to deplete them from solution. Microspheres coupled with Protein A and Protein G will bind to the Fc portion of antibodies raised in most mammals.

    Learn More
  19. Polybead® Carboxylate Green Dyed Microspheres 0.20μm

    Polybead® Carboxylate Green Dyed Microspheres 0.20μm

    Starting at: $176.00

    Our dyed Polybeads® are packaged in an economical 2.5% aqueous suspension and are available in a variety of sizes and colors.

    Learn More
  20. Polybead® Carboxylate Green Dyed Microspheres 1.00μm

    Polybead® Carboxylate Green Dyed Microspheres 1.00μm

    Starting at: $219.00

    Our dyed Polybeads® are packaged in an economical 2.5% aqueous suspension and are available in a variety of sizes and colors.

    Learn More
  21. Polybead® Carboxylate Orange Dyed Microspheres 0.20μm

    Polybead® Carboxylate Orange Dyed Microspheres 0.20μm

    Starting at: $176.00

    Our dyed Polybeads® are packaged in an economical 2.5% aqueous suspension and are available in a variety of sizes and colors.

    Learn More
  22. Polybead® Carboxylate Orange Dyed Microspheres 1.00μm

    Polybead® Carboxylate Orange Dyed Microspheres 1.00μm

    Starting at: $209.00

    Our dyed Polybeads® are packaged in an economical 2.5% aqueous suspension and are available in a variety of sizes and colors.

    Learn More
  23. Polybead® Carboxylate Red Dyed Microspheres  0.50μm

    Polybead® Carboxylate Red Dyed Microspheres 0.50μm

    Starting at: $192.00

    Polysciences is the leading supplier of dyed microspheres to the latex agglutination and membrane-enhanced immunoassay marketplace. Diagnostic manufacturers rely on our precisely controlled particle synthesis to ensure reproducibility in both assay design and performance.

    Learn More
  24. Polybead® Carboxylate Red Dyed Microspheres 0.30μm

    Polybead® Carboxylate Red Dyed Microspheres 0.30μm

    Starting at: $224.00

    Polysciences is the leading supplier of dyed microspheres to the latex agglutination and membrane-enhanced immunoassay marketplace. Diagnostic manufacturers rely on our precisely controlled particle synthesis to ensure reproducibility in both assay design and performance. Our dyed Polybeads™ are packaged in an economical 2.5% aqueous suspension.

    Learn More
  25. Polybead® Carboxylate Red Dyed Microspheres  1.00μm

    Polybead® Carboxylate Red Dyed Microspheres 1.00μm

    Starting at: $229.00

    Polysciences is the leading supplier of dyed microspheres to the latex agglutination and membrane-enhanced immunoassay marketplace. Diagnostic manufacturers rely on our precisely controlled particle synthesis to ensure reproducibility in both assay design and performance.

    Learn More
  26. Polybead® Carboxylate Red Dyed Microspheres  3.00μm

    Polybead® Carboxylate Red Dyed Microspheres 3.00μm

    Starting at: $263.00

    Polysciences is the leading supplier of dyed microspheres to the latex agglutination and membrane-enhanced immunoassay marketplace. Diagnostic manufacturers rely on our precisely controlled particle synthesis to ensure reproducibility in both assay design and performance. Our dyed Polybeads® are packaged in an economical 2.5% aqueous suspension.

    Learn More
  27. Polybead® Carboxylate Red Dyed Microspheres 6.00μm

    Polybead® Carboxylate Red Dyed Microspheres 6.00μm

    Starting at: $286.00

    Polysciences is the leading supplier of dyed microspheres to the latex agglutination and membrane-enhanced immunoassay marketplace. Diagnostic manufacturers rely on our precisely controlled particle synthesis to ensure reproducibility in both assay design and performance.

    Learn More
  28. Polybead® Carboxylate Yellow Dyed Microspheres  0.50μm

    Polybead® Carboxylate Yellow Dyed Microspheres 0.50μm

    Starting at: $192.00

    Polysciences is the leading supplier of dyed microspheres to the latex agglutination and membrane-enhanced immunoassay marketplace. Diagnostic manufacturers rely on our precisely controlled particle synthesis to ensure reproducibility in both assay design and performance.

    Our dyed Polybeads® are packaged in an economical 2.5% aqueous suspension and are available in a variety of sizes and colors.

    Learn More
  29. Polybead® Carboxylate Yellow Dyed Microspheres 1.00μm

    Polybead® Carboxylate Yellow Dyed Microspheres 1.00μm

    Starting at: $229.00

    Polysciences is the leading supplier of dyed microspheres to the latex agglutination and membrane-enhanced immunoassay marketplace. Diagnostic manufacturers rely on our precisely controlled particle synthesis to ensure reproducibility in both assay design and performance.

    Our dyed Polybeads® are packaged in an economical 2.5% aqueous suspension and are available in a variety of sizes and colors.

    Learn More
  30. Polybead® Carboxylate Yellow Dyed Microspheres  3.00μm

    Polybead® Carboxylate Yellow Dyed Microspheres 3.00μm

    Starting at: $263.00

    Polysciences is the leading supplier of dyed microspheres to the latex agglutination and membrane-enhanced immunoassay marketplace. Diagnostic manufacturers rely on our precisely controlled particle synthesis to ensure reproducibility in both assay design and performance.

    Learn More
  31. Polybead® Carboxylate Yellow Dyed Microspheres  6.00μm

    Polybead® Carboxylate Yellow Dyed Microspheres 6.00μm

    Starting at: $286.00

    Polysciences is the leading supplier of dyed microspheres to the latex agglutination and membrane-enhanced immunoassay marketplace. Diagnostic manufacturers rely on our precisely controlled particle synthesis to ensure reproducibility in both assay design and performance.

    Learn More
  32. anti-Mouse lgG (H&L) Microspheres

    anti-Mouse lgG (H&L) Microspheres

    Starting at: $370.00

    Protein conjugated microspheres are offered as: antibodies, Protein A, and Protein G covalently coupled to fluorescent YG, non-fluorescent, and blue dyed polystyrene microspheres. Antibody conjugated microspheres can be used to detect and deplete trace amounts of specific antigens in solution. Microspheres coupled with Protein A and Protein G will bind to the Fc portion of antibodies raised in most mammals.

    Learn More
  33. Polyballs - Polystyrene, 1/4” Diameter, Etched Surface

    Polyballs - Polystyrene, 1/4” Diameter, Etched Surface

    Starting at: $134.00

    Highly uniform 1/4" polystyrene spheres with an etched surface. The surface roughness of 100-120µm promotes better adherence of proteins, etc. for biological applications.

    Density = ~1.05 g/cc

    Learn More
  34. Microdispers-200

    Microdispers-200

    Starting at: $151.00

    These particles require far less added dispersant than traditional PTFE particles to form stable dispersions.

    Microdispers particles are useful for many applications including coatings, gloss reducers, and coating additives that impact water pickup or surface energy.

    With good powder flow properties, these particles are easily compounded in a number of thermoplastic matrices with appropriate heat/shear mixing.

    Learn More
  35. Microdispers-3000

    Microdispers-3000

    Starting at: $151.00

    These particles require far less added dispersant than traditional PTFE particles to form stable dispersions.

    Microdispers particles are useful for many applications including coatings, gloss reducers, and coating additives that impact water pickup or surface energy.

    With good powder flow properties, these particles are easily compounded in a number of thermoplastic matrices with appropriate heat/shear mixing.

    Mean Particle Size: 3000nm (<10% of particle size distribution is above 10μm)

    Surfactant Demand: Lower than traditional PTFE particles

    Surface Area: 2m2/g (BET surface area measurement)

    Learn More
  36. Microdispers-8000

    Microdispers-8000

    Starting at: $151.00

    Polytetrafluoroethylene (PTFE) particles provided in dry powder form. These particles require far less added dispersant than traditional PTFE particles to form stable dispersions.

    Learn More
  37. DispersEZ-300

    DispersEZ-300

    Starting at: $263.00

    A novel patented class of polytetrafluoroethylene particles, our unique DispersEZ particles have chemically treated surfaces to orient stabilizing polar moieties (both hydroxyl and carboxylic acid groups) to the exterior of the bead. These molecules, which are chemically grafted to the PTFE surface, allow the particles to disperse easily in both aqueous and solvent media without the need for added surfactants or stabilizers that can interfere with desired properties.

    Learn More
  38. Polybead® Poly(methyl methacrylate) Microspheres - Broad Distribution

    Polybead® Poly(methyl methacrylate) Microspheres - Broad Distribution

    Starting at: $135.00

    Poly(methyl methacrylate) or PMMA is less hydrophobic than polystyrene and should show reduced nonspecific protein and peptide binding. The density of these beads, 1.19 g/cc, is considerably higher than that of polystyrene beads, making them easier to concentrate by centrifugation. The beads are not free of surfactant and contain surface carboxylic acid groups at higher concentration than the standard Polybead Polystyrene Carboxylate Microspheres.

    Learn More
  39. Polybead® Poly(methyl methacrylate) Microspheres with Anionic Surfactant

    Polybead® Poly(methyl methacrylate) Microspheres with Anionic Surfactant

    Starting at: $286.00

    Poly(methyl methacrylate) or PMMA is less hydrophobic than polystyrene and should show reduced nonspecific protein and peptide binding. The density of these beads, 1.19 g/cc, is considerably higher than that of polystyrene beads, making them easier to concentrate by centrifugation. The beads are not free of surfactant and contain surface carboxylic acid groups at higher concentration than the standard Polybead Polystyrene Carboxylate Microspheres.

    Learn More
  40. Phenolic Beads, Hollow

    Phenolic Beads, Hollow

    Starting at: $192.00

    In many uses of liquid resins, it is desirable to reduce the weight of the finished product. One way to reduce the weight below the original resin weight is to incorporate a suitable additive. Hollow phenolic microspheres are excellent for use in a variety of industrial applications. They are lightweight, chemically inert, and mechanically strong. They can be excellent adhesives, gap filling formulations, sandable putties, syntactic foams, and molded and laminated structures that must be lightweight and strong. About 30% by weight will make most resins unpourable. Filling casting are quite machinable; turns casting brown.

    Learn More
  41. Poly(ethyl methacrylate) Beads (PEMA Beads)

    Poly(ethyl methacrylate) Beads (PEMA Beads)

    Starting at: $135.00

    Tough methacrylate resin.

    Particle size (D50): 140-220µm

    Learn More
  42. Poly(tetrafluoroethylene)_(Teflon™ 7A)

    Poly(tetrafluoroethylene)_(Teflon™ 7A)

    Starting at: $139.00

    Inert polymer.

    Nominal diameter: 35µm

    Learn More
  43. Poly(styrene/divinyl benzene), 98:2

    Poly(styrene/divinyl benzene), 98:2

    Starting at: $219.00

    Beads for preparation of crosslinked poly(chloromethylstyrene) Merrifield resins and other functionalized beads.

    98:2 200-400 mesh

    Learn More
  44. Polypropylene, Chromatographic Grade

    Polypropylene, Chromatographic Grade

    Starting at: $126.00

    Widely used polyolefin. Soluble in: chlorinated hydrocarbons, aromatic hydrocarbons, isoamyl acetate.

    Chromatographic grade 25-85µm

    Learn More
  45. Polybead® Poly(methyl methacrylate) Microspheres - Monodisperse

    Polybead® Poly(methyl methacrylate) Microspheres - Monodisperse

    Starting at: $229.00

    Poly(methyl methacrylate) or PMMA is less hydrophobic than polystyrene and should show reduced nonspecific protein and peptide binding. The density of these beads, 1.19 g/cc, is considerably higher than that of polystyrene beads, making them easier to concentrate by centrifugation. The beads are not free of surfactant and contain surface carboxylic acid groups at higher concentration than the standard Polybead Polystyrene Carboxylate Microspheres.

    Learn More
  46. Polybead® Crosslinked Melamine Particles

    Polybead® Crosslinked Melamine Particles

    Starting at: $413.00

    These melamine particles are crosslinked by acid-catalyzed reaction with formaldehyde. The particles have a much higher density (1.51 g/cc) than polystyrene, are hydrophilic with amine and methylolamine groups, and, being crosslinked, are not noticeably swelled by organic solvents. The particles can be lyophilized and then redispersed in water. The particles are supplied as a suspension of 2.5% solids in water.

    ~1.00µm

    Learn More
  47. Fluoresbrite® YG Carboxylate Microspheres 0.75µm

    Fluoresbrite® YG Carboxylate Microspheres 0.75µm

    Starting at: $229.00

    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 as 2.5% aqueous suspensions.

    Learn More
  48. Fluoresbrite® YG Carboxylate Microspheres 0.20µm

    Fluoresbrite® YG Carboxylate Microspheres 0.20µm

    Starting at: $229.00

    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 as 2.5% aqueous suspensions.

    Learn More
  49. Fluoresbrite® YG Carboxylate Microspheres 0.10µm

    Fluoresbrite® YG Carboxylate Microspheres 0.10µm

    Starting at: $229.00

    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 as 2.5% aqueous suspensions.

    Learn More
  50. Fluoresbrite® YG Carboxylate Microspheres 0.30μm

    Fluoresbrite® YG Carboxylate Microspheres 0.30μm

    Starting at: $229.00

    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 as 2.5% aqueous suspensions.

    Learn More
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