Product Overview
SANYU GROUP CP70NM Carboxyl Polystyrene Microspheres are monodisperse polymer microspheres with carboxyl (–COOH) functional groups on the particle surface.
CP70NM has a nominal particle diameter of 70 nm (0.07 μm) and is supplied as a 10% solids aqueous dispersion. The surface carboxyl groups provide active sites for biomolecule immobilization and surface modification.
With small particle size, stable dispersion performance and controlled surface functionality, CP70NM is suitable for antibody conjugation, protein immobilization, immunoassay development, biosensor research and other life science applications.
Key Features
Particle size: 70 nm
Surface functional group: Carboxyl (–COOH)
Solid content: 10%
Carboxyl content: 100 mmol/g
Uniform particle size distribution
Stable aqueous dispersion
Suitable for EDC/NHS coupling chemistry
Good biomolecule immobilization capability
Technical Specifications
Parameter | Specification |
|---|
Product Code | CP70NM |
Product Name | Carboxyl Polystyrene Microspheres |
Material | Polystyrene |
Particle Diameter | 70 nm (0.07 μm) |
Functional Group | Carboxyl (–COOH) |
Carboxyl Content | 100 mmol/g |
Solid Content | 10% |
Dispersion Medium | Deionized Water |
Appearance | White aqueous dispersion |
Applications
CP70NM Carboxyl Polystyrene Microspheres can be used in:
Immunoassay development
Lateral flow assay (LFA)
Antibody and protein conjugation
Biomolecule immobilization
Biosensor development
Diagnostic reagent development
Molecular biology research
Nanoparticle surface modification
Surface Functionalization
The carboxyl groups on CP70NM provide reactive sites for covalent coupling.
After activation with EDC or EDC/NHS chemistry, the microspheres can be conjugated with amino-containing molecules such as antibodies, proteins, peptides and other biomolecules.
Advantages of SANYU Carboxyl Polystyrene Microspheres
Small and uniform particle size
Stable aqueous dispersion
Controlled surface functional groups
Reliable batch-to-batch consistency
Suitable for biomolecule coupling applications
Customization available
Storage and Handling
Customization Service
SANYU GROUP provides customization services including:
Customized particle sizes
Customized carboxyl density
Customized solid concentrations
Surface functional modification
Customized packaging
Frequently Asked Questions About CP70NM
What is CP70NM?
CP70NM is a 70 nm carboxyl polystyrene microsphere with surface carboxyl (–COOH) functional groups.
What particle size is CP70NM?
CP70NM has a particle diameter of 70 nm (0.07 μm).
What is the solid content of CP70NM?
CP70NM is supplied as a 10% solids aqueous dispersion.
What functional group is available on CP70NM?
CP70NM contains carboxyl (–COOH) functional groups on the particle surface.
What is the carboxyl content of CP70NM?
The carboxyl content of CP70NM is 100 mmol/g.
Can CP70NM be used for antibody or protein coupling?
Yes. The carboxyl groups can be activated using EDC or EDC/NHS chemistry for antibody, protein and biomolecule conjugation.
What applications are suitable for CP70NM?
CP70NM is suitable for immunoassays, lateral flow assays, biosensors, biomolecule immobilization and nanomaterial surface modification.
Can particle size and surface properties be customized?
Yes. SANYU GROUP provides customized microspheres according to customer requirements.
