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MS160/Tosyl & MS300/Tosyl

MS160/Tosyl & MS300/Tosyl

Magnosphere™ MS160/Tosyl & MS300/Tosyl are magnetic particles especially for high purity bioseparation. The surface of these particles are coated with hydrophilic polymer for reducing non-specific binding and are activated with p-toluene sulfonyl (tosyl) group. The Tosyl group enables to immobilize ligands such as antibody without using coupling reagents. The activated Tosyl group is eliminated though a coupling reaction, the surface of the particles became hydrophilic to reduce non-specific binding.
Uniform particle size and superparamagnetic property of the Magnosphere™ MS160/Tosyl & MS300/Tosyl provide good magnetic separation and re-suspension response.

Features and specifications

● Uniform particle diameter
● Superparamagnetic
● High-speed magnetic response
● Low non-specific binding

  MS160/Tosyl MS300/Tosyl
Particle size 1.5 µm 3 µm
Surface carboxyl density 150 nmol/mg beads approx. 80 nmol/mg beads approx.
Ligand coupling Covalent coupling Covalent coupling
Application Immunoassay Immunoassay

Application data (Chemiluminescence enzyme immunoassay)

Chemiluminescence enzyme immunoassay (CLEIA) for prostate specific antigen (PSA) with MS160/Tosyl

Chemiluminescence enzyme immunoassay (CLEIA) for prostate specific antigen (PSA) with MS300/Tosyl

Products List

Code No. Product Surface Diameter
Function Density
Particle Contents
J-MS-S160T MS160/Tosyl Hydrophilic 1.5 150 1 4 Proclin 950
J-MS-S300T MS300/Tosyl Hydrophilic 3 80 1 4 Proclin 950

Magnosphere is a trademark of JSR corporation.


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