Thermo Fisher Scientific Nonionic Latex Beads, 4% w/v, 5 μm

Invitrogen™ Nonionic Latex Beads, 4% w/v, 5 μm

Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range formed from amorphous polymers such as polystyrene. The arrangement of polystyrene chains results in a highly hydrophobic surface, making these beads ideal for adsorption of materials such as proteins.

These nonionic polystyrene microspheres are produced by dispersion polymerization. Their particle surface is free of charged groups and stabilized by neutral, hydrophilic polymer stabilizers, ensuring stability across a wide pH range and in high salt conditions. The nonionic surface prevents aggregation caused by polyvalent cations.

Microspheres Are Available in Many Sizes and Surface Functionalities

• 25 sizes to choose from — 0.02 μm to 16 μm
• 20 different surface types — ready for conjugation to various materials
• Surfactant-free — ultraclean
• Available in quantities from milliliters to 500 liters

Key Applications of Microspheres

• Instrument calibration (flow cytometry, microscopy, HTS, HCS)
• Flow testing (microfluidics, blood flow, water flow, air flow)
• Cell biology tracers (cell differentiation, cell tracing)
• Immunoassays (agglutination tests, ELISA, particle capture, contrast reagents)

Additional Information

For more details, refer to the IDC Surfactant-free Latex Beads page for technical overviews and bead-coupling protocols.

Custom Microsphere Service

If your desired microsphere is not listed in the stocked catalog, Thermo Fisher Scientific offers custom microsphere production and conjugation services. These services are confidential, ISO 13485:2000 certified, and quality guaranteed.

For Research Use Only.
Not intended for animal or human therapeutic or diagnostic use.

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