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Magnetic Silica Beads with Streptavidin

MD01001 - Magnetic Silica Beads coated with Streptavidin, 1μm bead size, 2ml


Starting at: $845.00

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Magnetic silica beads coated with streptavidin efficiently bind to biotinylated molecules, such as peptides, proteins, antibodies, sugars, and lectins. These beads are suitable for many applications based on the strong Streptavidin-Biotin, including purification of proteins and peptides or nucleic acids, immunoprecipitation, immunoassays, protein interaction studies, phage display, and cell isolation. They are particularly useful as a solid support phase in immunoassays. Magnetic beads have quick washing steps, shortened incubation time, and easy implementation into automated processes.

Binding of molecules onto Magnetic Silica Beads coated with streptavidin is based on the strong non-covalent interaction between streptavidin and biotin (Ka = 1015 M-1). These beads are coated with recombinant streptavidin (53 kDa) with shortened N- and C-terminus for improved solubility and accessibility of the sites. Albumin binding sites are eliminated for optimal specificity.


  • Streptavidin covalently bound to surface, bonds strongly to biotin
  • Used as solid support phase in immunoassays
  • Quick and easy washing steps; shortened incubation times
  • Suitable for high-throughput and automated applications
  • Concentration of 10mg/ml (beads/ml)


  • Immunoassays
  • Purification of biotinylated molecules and other molecules 
  • Immunoprecipitation, protein interaction studies, phage display, cell isolation, etc.


  • Magnetic Silica Beads coated with Streptavidin, 1μm bead size, 2ml


Previously listed as catalog# PR-MAG00031-01