Thermo Fisher Scientific Carboxyl Latex Beads, 4% w/v, 0.06 μm

Invitrogen™ Carboxyl Latex Beads, 4% w/v, 0.06 μm

Microspheres (also called latex beads or latex particles) are spherical particles in the colloidal size range that are formed from an amorphous polymer such as polystyrene. Because of the way that the polystyrene chains arrange themselves in the bead, the surface is highly hydrophobic, making these ideal materials for adsorption of proteins and other biomolecules.

The carboxyl latex consists of carboxyl charge-stabilized hydrophobic polystyrene microspheres. Only carboxyl groups are present on the particle surface. These particles are the carboxyl analog of sulfate latexes. Due to the relatively high pKa of the carboxyl group, they are not suitable for acidic media. IDC carboxyl latexes are available in various sizes and surface charge densities and can be used for physical adsorption or covalent coupling of antigens, antibodies, or other biomolecules.

Microspheres Are Available in Many Sizes and Surface Functionalities

• 25 sizes available (0.02 μm to 16 μm)
• 20 different surface functionalities for versatile conjugation
• Surfactant-free for ultraclean performance
• Available in quantities from milliliters to 500 liters

Key Applications

• 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

Read a technical overview and find details about high-activity, super-active, and specialty beads, as well as bead-coupling protocols on the IDC Surfactant-free Latex Beads page.

Custom Microsphere Service

If the desired microsphere is not listed in our stocked catalog, we offer custom microsphere production. Our ISO 13485:2000 certified service ensures efficient, confidential, and high-quality conjugation.

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

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