MTOS5UM-10 5μm Tosyl Magnetic Beads 5% Suspension

Product Overview

MTOS5UM-10 Tosyl Magnetic Beads are superparamagnetic microspheres with a nominal particle diameter of 5 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 purification, immunoassays, protein separation and numerous life science applications.

Supplied as a 5% aqueous suspension, the beads provide excellent magnetic responsiveness, high suspension stability and reliable batch-to-batch consistency.

Key Features

• Uniform 5 μm particle size

• Tosyl-functionalized surface

• Superparamagnetic iron oxide core

• Rapid magnetic separation

• Stable covalent biomolecule immobilization

• High antibody and protein coupling efficiency

• Excellent aqueous dispersion stability

• Low nonspecific adsorption

• Consistent batch-to-batch quality

• Suitable for laboratory and industrial applications

Technical Specifications

Applications

• Antibody immobilization

• Protein immobilization

• Enzyme immobilization

• Immunoassays

• Immunoprecipitation

• Affinity purification

• Protein separation

• Cell separation

• Molecular diagnostics

• Biotechnology research

Product Advantages

MTOS5UM-10 combines rapid magnetic separation with a larger bead size that is easy to handle during laboratory workflows. The 5 μm particle size provides a large active surface for biomolecule immobilization while maintaining excellent magnetic recovery efficiency.

The tosyl-functionalized surface forms stable covalent bonds with proteins and antibodies containing suitable amino or sulfhydryl groups, ensuring high coupling efficiency and excellent stability throughout repeated washing and separation procedures.

The superparamagnetic iron oxide core allows fast magnetic collection while preventing permanent aggregation once 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 before use.

• Ensure the beads are fully resuspended before sampling.

• Avoid prolonged exposure to strong magnetic fields during storage.

• Use clean laboratory equipment to avoid 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 5μm Tosyl Magnetic Beads?

The new product code is MTOS5UM-10, and the corresponding previous Part No. is MagTOS5UM-10.

What is the particle size of MTOS5UM-10?

MTOS5UM-10 has a nominal particle diameter of 5 μm.

What is the solid content of MTOS5UM-10?

The standard product is supplied as a 5% aqueous suspension.

What biomolecules can be coupled to these beads?

The tosyl-functionalized surface is designed for the covalent immobilization of antibodies, proteins, enzymes and other biomolecules containing suitable amino or sulfhydryl groups.

What applications are these beads suitable for?

MTOS5UM-10 is widely used for antibody immobilization, protein purification, affinity separation, immunoassays, immunoprecipitation and biotechnology research.

How should MTOS5UM-10 be stored?

Store the product at 2–8°C, avoid freezing, and gently mix the suspension before use to ensure optimal magnetic separation performance.