Your Trusted Microsphere Manufacturer for Diagnostic Innovation

Products

SHBC provides colored microspheres, fluorescent microspheres, magnetic beads, silica microspheres, chromatography packing microspheres and biological reagents for diagnostic assay development, nucleic acid extraction, protein purification and separation applications.

Home Carboxyl Polystyrene Microspheres CP7UM-10 7μm Carboxyl Polystyrene Microspheres 10% Solids for Biomolecule Coupling
CP7UM-10 7μm Carboxyl Polystyrene Microspheres 10% Solids for Biomolecule Coupling
CP7UM-10 7μm Carboxyl Polystyrene Microspheres 10% Solids for Biomolecule Coupling
CP7UM-10 7μm Carboxyl Polystyrene Microspheres 10% Solids for Biomolecule Coupling
CP7UM-10 7μm Carboxyl Polystyrene Microspheres 10% Solids for Biomolecule Coupling

CP7UM-10 is a 7μm carboxyl polystyrene microsphere dispersion with 10% solids and 200 μmol/g carboxyl groups for biomolecule coupling and particle-based research applications.

  • CP7UM-10

  • 10%

  • 7 μm

  • 10ml,20ml,50ml,100ml,1000ml

Inquire

Product Overview

SANYU GROUP CP7UM-10 Carboxyl Polystyrene Microspheres are monodisperse polymer microspheres with carboxyl (–COOH) functional groups on the particle surface.

CP7UM-10 has a nominal particle diameter of 7 μm and is supplied as a 10% solids aqueous dispersion. The surface carboxyl groups provide active sites for biomolecule immobilization and surface modification.

With uniform micron-scale particle size distribution, stable dispersion performance and high surface carboxyl density, CP7UM-10 is suitable for biomolecule coupling, immunoassay development, particle-based analysis and various life science research applications.

Key Features

  • Particle size: 7 μm

  • Surface functional group: Carboxyl (–COOH)

  • Solid content: 10%

  • Carboxyl content: 200 μmol/g

  • Particle number: Approx. 1×10¹⁰ particles/g

  • Uniform micron-scale particle size

  • Stable aqueous dispersion

  • Suitable for EDC/NHS coupling chemistry

  • High surface functional group density

Technical Specifications

Parameter

Specification

Product Code

CP7UM-10

Product Name

Carboxyl Polystyrene Microspheres

Material

Polystyrene

Particle Diameter

7 μm

Functional Group

Carboxyl (–COOH)

Carboxyl Content

200 μmol/g

Solid Content

10%

Particle Number

Approx. 1×10¹⁰ particles/g

Dispersion Medium

Deionized Water

Appearance

White aqueous dispersion

Applications

CP7UM-10 Carboxyl Polystyrene Microspheres can be used in:

  • Immunoassay development

  • Antibody and protein conjugation

  • Biomolecule immobilization

  • Particle-based assay development

  • Flow cytometry research

  • Microsphere calibration applications

  • Biological detection research

  • Laboratory analysis applications

Surface Functionalization

The carboxyl groups on CP7UM-10 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.

The high surface carboxyl content of CP7UM-10 provides sufficient active sites for biomolecule immobilization and surface modification, making it suitable for developing functionalized microspheres for biological applications.

Advantages of SANYU Carboxyl Polystyrene Microspheres

  • Uniform micron-scale particle size

  • Stable aqueous dispersion

  • High surface carboxyl density

  • Reliable batch-to-batch consistency

  • Suitable for biological coupling applications

  • Custom particle size and surface modification available

Storage and Handling

  • Store according to product specifications.

  • Avoid direct sunlight.

  • Keep container tightly closed.

  • Mix gently before use.

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 CP7UM-10

What is CP7UM-10?

CP7UM-10 is a 7 μm carboxyl polystyrene microsphere with surface carboxyl (–COOH) functional groups.

What particle size is CP7UM-10?

CP7UM-10 has a particle diameter of 7 μm.

What is the solid content of CP7UM-10?

CP7UM-10 is supplied as a 10% solids aqueous dispersion.

What functional group is available on CP7UM-10?

CP7UM-10 contains carboxyl (–COOH) functional groups on the particle surface.

What is the carboxyl content of CP7UM-10?

The carboxyl content of CP7UM-10 is 200 μmol/g.

How many particles are contained in CP7UM-10?

CP7UM-10 contains approximately 1×10¹⁰ particles per gram.

Can CP7UM-10 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 CP7UM-10?

CP7UM-10 is suitable for immunoassays, biomolecule immobilization, particle-based assays, calibration applications and biological research.

Can particle size and surface properties be customized?

Yes. SANYU GROUP provides customized microspheres according to customer requirements.

Related Blogs

  • How Silica Magnetic Beads Work for DNA and RNA Extraction
    How Silica Magnetic Beads Work: Quick AnswerSilica magnetic beads extract DNA and RNA through a reversible bind–wash–elute process.First, a lysis buffer breaks open cells, viruses or other biological materials and releases nucleic acids into solution. A binding buffer containing salts—and often alco
  • Top 10 Silica Magnetic Bead Manufacturers and Suppliers 2026
    Overview of the Silica Magnetic Bead MarketSilica magnetic beads are functional magnetic particles used to extract and purify DNA or RNA from biological, clinical, food, environmental and research samples.A typical bead contains a magnetic core and a silica or silica-like outer surface. Under suitab
  • How to Choose Silica Magnetic Beads for DNA and RNA Extraction
    How to Choose Silica Magnetic Beads: Quick AnswerChoose silica magnetic beads according to the complete extraction workflow—not according to particle diameter or catalog price alone.The correct bead must match:The target nucleic acid;The sample matrix;The expected nucleic acid concentration;The requ
  • Top 10 Microsphere Manufacturers for Lateral Flow Assays Serving Europe in 2026
    Quick Answer: Top 10 Microsphere Manufacturers Serving EuropeThe top 10 microsphere manufacturers and specialist particle suppliers serving European lateral flow assay developers in 2026 are:Merck EstaporSHBCBangs LaboratoriesPolysciencesThermo Fisher ScientificJSR Life SciencesMagsphereSpherotechmi