Product Overview
MTOS20UM-10 Tosyl Magnetic Beads are superparamagnetic microspheres with a nominal particle diameter of 20 μm and reactive tosyl-functionalized surfaces.
The tosyl surface enables efficient covalent coupling with primary amino or sulfhydryl groups on antibodies, proteins, enzymes and other biomolecules. These beads are ideal for affinity purification, immunoassays, protein separation, immunoprecipitation and biotechnology applications.
Supplied as a 5% aqueous suspension, MTOS20UM-10 provides excellent magnetic responsiveness, high suspension stability and reliable batch-to-batch consistency.
Key Features
Uniform 20 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
Parameter | Specification |
|---|
Product Code | MTOS20UM-10 |
Part No. | MagTOS20UM-10 |
Product Name | Tosyl Magnetic Beads |
Particle Size | 20 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
MTOS20UM-10 combines strong magnetic responsiveness with a larger particle size for easy handling and rapid magnetic recovery. The 20 μm particle size offers excellent mechanical stability and sufficient surface area for efficient biomolecule immobilization.
The tosyl-functionalized surface forms stable covalent bonds with biomolecules containing primary amino or sulfhydryl groups, providing high coupling efficiency and excellent stability during repeated washing and separation processes.
Its superparamagnetic iron oxide core enables fast magnetic collection while preventing permanent aggregation after removal of the external magnetic field.
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 20μm Tosyl Magnetic Beads?
The new product code is MTOS20UM-10, and the corresponding previous Part No. is MagTOS20UM-10.
What is the particle size of MTOS20UM-10?
MTOS20UM-10 has a nominal particle diameter of 20 μm.
What is the solid content of MTOS20UM-10?
The standard product is supplied as a 5% aqueous suspension.
What biomolecules can be coupled to these beads?
The tosyl-functionalized surface is suitable for the covalent immobilization of antibodies, proteins, enzymes and other biomolecules containing primary amino or sulfhydryl groups.
What applications are these beads suitable for?
MTOS20UM-10 is widely used for antibody immobilization, protein purification, affinity separation, immunoassays, immunoprecipitation and biotechnology research.
How should MTOS20UM-10 be stored?
Store the product at 2–8°C, avoid freezing, and gently mix the suspension thoroughly before use to maintain optimal dispersion and magnetic separation performance.
