Tosyl-Activated Magnetic Microspheres, 1-3 µm (CAT#: STEM-BC-3095-ZJF)

These tosyl-functionalized magnetic microspheres are designed for direct covalent immobilization of biomolecules. They use monodisperse polymer particles with embedded magnetite. The magnetic structure provides fast response during separation and washing. A hydrophilic surface improves suspension stability and particle redispersion. Tosyl groups on the particle surface react with amino-containing antibodies and other molecules. The functional groups can be used without a separate surface-activation step. High coupling capacity supports development of sensitive chemiluminescent reagents. The particles can also be used for immunoprecipitation, nucleic-acid extraction, selective capture, screening, and nucleic-acid hybridization.

Model: Tosyl Magnetic Microspheres
Matrix: Polymer and Fe3O4
Surface type: Hydrophilic
Particle sizes: 1 and 3 µm
Surface functional group: Tosyl
Coupling targets: Amino-containing antibodies and biomolecules
Activation requirement: No separate activation stated
Applications: Chemiluminescent assays, immunoprecipitation, nucleic-acid extraction, selective capture, screening, and hybridization

Direct covalent biomolecule coupling
No preliminary activation required
Rapid magnetic response
High coupling capacity
Hydrophilic particle surface
Stable suspension and redispersion
Monodisperse particle structure
Reproducible assay results

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