Sera-Mag Streptavidin-Coated Magnetic Beads and SpeedBeads by GE Healthcare

Manufacturer GE Healthcare  |  Available Worldwide
Streptavidin-coated magnetic beads for biotinylated target molecules, fast and reliable proteomic analysis.


Sera-Mag Streptavidin-Coated Magnetic Beads and SpeedBeads by GE Healthcare product image
Sera-Mag Streptavidin-Coated Magnetic Beads and SpeedBeads
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  • Sera-Mag Streptavidin-Coated Magnetic Beads and SpeedBeads exhibit high affinity and sensitivity for biotinylated target molecules, along with fast reaction kinetics, increasing throughput and precision for genomic and proteomic applications.
  • 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 to optimize assay development
  • Low dissociation constant ensures tight ligand binding
  • Low non-specific binding for greater precision and accuracy
  • Combines large surface area, high sensitivity, physical stability, and fast reaction kinetics
  • Even streptavidin coating for reliable results
  • The uniform, nominal 1 μm diameter provides high surface area and excellent lot-to-lot reproducibility.
  • Sera-Mag SpeedBeads and Sera-Mag Streptavidin-Coated Magnetic Particles combine fast reaction kinetics and low non-specific binding for increased throughput and precision in immunoassay and molecular biology applications such as sample preparation and assay development for genomics and proteomics.
  • Compounds that are difficult to attach to particle surfaces by conventional means may be amenable to biotinylation. Sera-Mag SpeedBeads and Sera-Mag Streptavidin-Coated Magnetic Particles provide a high biotin-binding capacity along with a strong affinity for targeted, biotin-labeled molecules.
  • The entire range of Sera-Mag encapsulated magnetic particles are characterized by high binding capacity, excellent stability, low nonspecific binding, high sensitivity, very slow settling rates, and fast reaction kinetics.
  • The core of each particle is made by a free radical emulsion polymerization of styrene and acid monomer. One (Sera-Mag) or two (Sera-Mag SpeedBeads) layers of magnetite are then coated onto this core, while the surface is modified to minimize non-specific binding of proteins. Due to the extra magnetite layer, SpeedBeads respond twice as fast to a magnetic field as the original Sera-Mag particles.
  • Magnetic particles may need further processing before they are ready to use for your particular application. Therefore, we can provide personalized magnetic bead solutions that fit seamlessly into your workflows, often saving you time and money in the process. We aim to provide product that is ready to use with little or no need for further modification. This allows you to focus on the science that matters. To learn more, please visit our custom manufacturing services page.