Available with low (2500 to 3500 pmol/mg), medium (3500 to 4500 pmol/mg) or high (4500 to 5500 pmol/mg) nominal biotin binding capacities for optimizing assay development. Low dissociation constant to tightly bound ligands. Low nonspecific binding for greater precision and accuracy. Combines large surface area, high sensitivity, physical stability, and fast reaction kinetics Even streptavidin coating for reliable results. SeraMag™ SpeedBeads™ and SeraMag™ StreptavidinCoated Magnetic Particles combine fast reaction kinetics and low nonspecific binding for increased throughput and precision in such immunoassay and molecular biology applications as sample preparation and assay development for genomics and proteomics. Streptavidin Coating Targets Biotinylated Molecules Compounds that are difficult to attach to particle surfaces by conventional means may be amenable to biotinylation. SeraMag™ SpeedBeads™ and SeraMag™ StreptavidinCoated Magnetic Particles provide a high biotinbinding capacity along with a strong affinity for targeted, biotin labeled molecules. Fast Magnetic Response Times and Stable Physical Integrity The core of the particle is made by a free radical emulsion polymerization of styrene and acid monomer. One (SeraMag™) or two (SeraMag™ SpeedBeads™) layers of magnetite are then coated onto this core.
