Featuring high binding capacity!
Actual values reported on label.
- Plain & fluorescent (YG) 
 - 1μm, 2μm, 6μm 
 - 1ml and 5ml bulk sizes available 
 - Custom coating available 
 - Competitively priced 
 - Faster and more convenient 
 
Polysciences" streptavidin coated beads can be used in conjunction with a biotinylated ligand, antibody, DNA or RNA to form a bridge to the microsphere, providing the simple addition of a solid support. The streptavidin-biotin bond strength approaches that of a covalent bond, with an association constant (Ka 10^15 Mol-1) in an aqueous solution. This makes the bond not only essentially irreversible, but also supplies an interaction of high affinitiy and specificity. 
 Nominal Reference Value:
- 2μm particles packaged as 1.25% solids in aqueous suspension.