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Home Carboxyl Polystyrene Microspheres 4μm Red Carboxyl Microspheres
4μm Red Carboxyl Microspheres
4μm Red Carboxyl Microspheres
CAR4UM-10  4um Red Carboxyl Microspheres with 4% solids are designed for lateral flow immunoassay and colloidal gold reagent development, offering uniform size and reliable coupling performance
  • CAR4UM-10

  • SHBC

  • 2%

  • 4µm

  • 10ml,20ml,50ml ,500ml,1000ml

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Product Overview of CAR4UM-10 Red Carboxyl Microspheres

SHBC CAR4UM-10 Red Carboxyl Microspheres are functional polymer latex microspheres developed for immunochromatography assay research, gold immunoassay reagent development, lateral flow diagnostic applications and IVD manufacturing.

CAR4UM-10 features a controlled particle size of 4μm with a 2% solid content, providing excellent dispersion stability, strong visible red signal and reliable surface functionality.

The microsphere surface is modified with abundant carboxyl groups (-COOH), enabling efficient coupling with antibodies, antigens, proteins and other biological molecules through chemical activation methods.

CAR4UM-10 is suitable for diagnostic reagent manufacturers, biotechnology companies and research institutions requiring stable and scalable microsphere materials for commercial immunochromatographic reagent production.

Key Features of 4μm Red Carboxyl Microspheres

Uniform 4μm Particle Size

CAR4UM-10 is produced using controlled polymerization technology to achieve uniform particle size distribution.

The 4μm particle size provides:

  • Strong visual detection capability

  • Stable signal intensity

  • Good particle handling performance

  • Reliable assay reproducibility

Large particle size microspheres can provide enhanced optical visibility for specific diagnostic assay designs.

Functional Carboxyl Surface Modification

CAR4UM-10 microspheres contain reactive carboxyl functional groups on the particle surface.

The carboxyl groups enable covalent coupling with biomolecules through EDC/NHS activation chemistry.

Suitable coupling molecules include:

  • Antibodies

  • Antigens

  • Proteins

  • Peptides

  • Other biological recognition molecules

This surface chemistry provides flexibility for developing different immunochromatographic platforms.

Stable Red Color Performance

CAR4UM-10 provides clear and stable red color visualization for rapid detection applications.

Key advantages include:

  • High color visibility

  • Stable optical properties

  • Uniform particle appearance

  • Good dispersion stability

These characteristics make CAR4UM-10 suitable for visible diagnostic detection systems.

Designed for IVD Reagent Production

CAR4UM-10 supports customers from research development to commercial manufacturing.

Applications include:

  • Immunochromatography reagent development

  • Lateral flow test strip production

  • Diagnostic kit manufacturing

  • Biological detection research

Technical Specifications of CAR4UM-10

Parameter

Specification

Product Name

Red Carboxyl Microspheres

Product Code

CAR4UM-10

Particle Size

4μm

Solid Content

2%

Material

Functional Polymer Latex Microspheres

Surface Functional Group

Carboxyl (-COOH)

Color

Red

Application

Immunochromatography / Gold Immunoassay

Coupling Method

EDC/NHS Activation

Supply Type

Research & Bulk Production

Applications in Immunochromatography and Gold Immunoassay

CAR4UM-10 Red Carboxyl Microspheres are widely used in:

Lateral Flow Immunochromatographic Assays

Applications include:

  • Rapid diagnostic test strips

  • Point-of-care testing products

  • Antigen detection assays

  • Antibody detection assays

Gold Immunochromatographic Reagent Development

CAR4UM-10 can be used as a functional labeling material for:

  • Diagnostic reagent research

  • Immunological detection platforms

  • Biological assay optimization

Antibody and Protein Coupling Applications

The carboxyl-functionalized surface enables stable immobilization of:

  • Monoclonal antibodies

  • Polyclonal antibodies

  • Antigens

  • Recombinant proteins

for diagnostic assay development.

Advantages of CAR4UM-10 for IVD Reagent Development

Enhanced Signal Visibility

Compared with smaller latex particles, 4μm microspheres provide stronger visual recognition due to their larger particle size.

Benefits include:

  • Improved visible signal

  • Easy observation

  • Stable labeling performance

Reliable Manufacturing Performance

CAR4UM-10 provides:

  • Uniform particle distribution

  • Stable surface chemistry

  • Consistent batch performance

  • Reliable coupling efficiency

Supporting diagnostic companies requiring reproducible production results.

Suitable for Scale-Up Production

CAR4UM-10 supports:

Research Development

For:

  • Assay screening

  • Coupling optimization

  • Prototype testing

Pilot Production

For:

  • Process validation

  • Performance evaluation

Commercial Manufacturing

For:

  • Large-scale diagnostic reagent production

  • Long-term raw material supply

Bulk Manufacturing and Supply Capability

SHBC provides professional production capability for functional latex microspheres.

CAR4UM-10 supports:

  • Research orders

  • Pilot batches

  • Bulk production supply

With controlled manufacturing processes, SHBC helps customers maintain stable microsphere supply for commercial IVD products.

Customization Options for Functional Latex Microspheres

SHBC provides customized microsphere solutions based on customer application requirements.

Available customization options:

  • Particle size adjustment

  • Surface functional modification

  • Solid content adjustment

  • Color customization

  • Packaging customization

Technical support is available for different immunochromatography platforms.

Quality Control and Batch Consistency

Each batch of CAR4UM-10 microspheres undergoes strict quality evaluation.

Quality control includes:

  • Particle size analysis

  • Surface chemistry testing

  • Dispersion stability evaluation

  • Appearance inspection

  • Batch consistency verification

These controls ensure reliable performance for research and industrial applications.

Frequently Asked Questions About CAR4UM-10 Microspheres

What are CAR4UM-10 Red Carboxyl Microspheres used for?

CAR4UM-10 Red Carboxyl Microspheres are used for immunochromatography assay development, gold immunoassay reagent research, lateral flow testing and IVD manufacturing.

What is the particle size of CAR4UM-10?

CAR4UM-10 has a particle size of 4μm with controlled particle distribution for stable diagnostic applications.

What is the solid content of CAR4UM-10?

The solid content of CAR4UM-10 Red Carboxyl Microspheres is 2%.

Can CAR4UM-10 microspheres be coupled with antibodies?

Yes. The carboxyl groups on CAR4UM-10 surfaces enable antibody and protein coupling through EDC/NHS activation chemistry.

Are CAR4UM-10 microspheres suitable for bulk IVD production?

Yes. CAR4UM-10 is designed for both research applications and large-scale manufacturing requirements of diagnostic reagent companies.

Conclusion

SHBC CAR4UM-10 4μm Red Carboxyl Microspheres provide a reliable functional material solution for immunochromatography, gold immunoassay reagent development and IVD diagnostic manufacturing.

With uniform particle size, strong red signal visibility, functional carboxyl surface chemistry and scalable production capability, CAR4UM-10 helps diagnostic companies improve assay consistency and accelerate product commercialization.

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