Product Overview
MTOS3UM-10 Tosyl Magnetic Beads are superparamagnetic microspheres with a nominal particle diameter of 3 μm and reactive tosyl-functionalized surfaces.
The tosyl groups enable covalent coupling with primary amino or sulfhydryl groups present in antibodies, proteins, enzymes and other biomolecules. This provides stable biomolecule immobilization for affinity separation, immunoassays, protein purification and other life science applications.
The beads are supplied as a 5% aqueous suspension and offer excellent dispersion stability, rapid magnetic separation and consistent performance between production batches.
Key Features
Uniform 3 μm particle size
Tosyl-functionalized surface
Superparamagnetic iron oxide core
Rapid magnetic separation
Stable covalent biomolecule immobilization
High protein and antibody coupling efficiency
Excellent aqueous dispersion stability
Low nonspecific adsorption
Consistent batch-to-batch performance
Suitable for laboratory and industrial applications
Technical Specifications
Parameter | Specification |
|---|
Product Code | MTOS3UM-10 |
Part No. | MagTOS3UM-10 |
Product Name | Tosyl Magnetic Beads |
Particle Size | 3 μm |
Surface Functional Group | Tosyl |
Core Material | Superparamagnetic Iron Oxide |
Solid Content | 5% Suspension |
Dispersion Medium | Deionized Water |
Appearance | Black Aqueous Suspension |
Storage Temperature | 2–8°C |
Available Packages | 10 mL / 20 mL / 100 mL / 1 L |
Applications
Antibody immobilization
Protein immobilization
Enzyme immobilization
Immunoassays
Immunoprecipitation
Affinity purification
Protein separation
Cell separation
Molecular diagnostics
Biotechnology research
Product Advantages
MTOS3UM-10 combines efficient magnetic responsiveness with a larger bead size for convenient handling and rapid magnetic recovery. The 3 μm particle size provides a balanced surface area for biomolecule coupling while maintaining excellent suspension characteristics.
The tosyl-functionalized surface forms stable covalent bonds with suitable amino or sulfhydryl groups on proteins and antibodies, reducing ligand loss during repeated washing and separation procedures.
The superparamagnetic core enables rapid collection using an external magnetic separator without residual magnetization after the magnetic field is removed.
Storage and Handling
Store at 2–8°C.
Do not freeze.
Keep the container tightly sealed.
Gently invert or vortex the suspension before use.
Ensure the beads are completely resuspended before sampling.
Avoid prolonged exposure to strong magnetic fields during storage.
Use clean laboratory equipment to prevent contamination.
Customization Service
SANYU GROUP provides customized Tosyl Magnetic Beads, including:
Customized particle sizes
Customized solid content
Tosyl group density adjustment
Amino surface modification
Carboxyl surface modification
Epoxy surface modification
Streptavidin surface modification
OEM manufacturing
Bulk production
Custom packaging
Frequently Asked Questions
What is the product code of the 3μm Tosyl Magnetic Beads?
The new product code is MTOS3UM-10, and the corresponding previous Part No. is MagTOS3UM-10.
What is the particle size of MTOS3UM-10?
MTOS3UM-10 has a nominal particle diameter of 3 μm.
What is the solid content of MTOS3UM-10?
The standard product is supplied as a 5% aqueous suspension.
What biomolecules can be coupled to these beads?
The tosyl-functionalized surface can be used for the covalent immobilization of antibodies, proteins, enzymes and other biomolecules containing suitable amino or sulfhydryl groups.
What applications are these beads suitable for?
They are suitable for antibody immobilization, protein purification, affinity separation, immunoassays, immunoprecipitation and biotechnology research.
How should MTOS3UM-10 be stored?
Store the product at 2–8°C and do not freeze. Gently mix the suspension before use.
