CARBOXYL POLYSTYRENE MICROSPHERE SUPPLIER
Carboxyl Polystyrene Microspheres for Immunoassay & Diagnostic Applications
Plain Microspheres
For antibody and protein conjugation.
Colored Microspheres
Red, blue, and custom colors for visual assays.
Fluorescent Microspheres
Red, green, and blue fluorescence for sensitive detection.
0.2–100 μm | CV < 3% | Customizable | OEM/ODM
KEY BENIFITS
Advantages of carboxyl polystyrene microspheres
Wide Size Range
Multiple particle sizes available. 0.2–100 µm, to meet various experimental needs.
Carboxyl Functional Group
Carboxyl-functionalized surface. Allows direct conjugation of antibodies / proteins.
High Monodispersity
CV < 3%, Consistent Batches.
Batch-to-Batch Consistency
Suitable for industrial production and diagnostic reagents.
Lateral Flow / Immunoassay Ready
For direct use in rapid diagnostic kits or assay development.
Customizable
Particle size, concentration, and surface modification can be customized as needed.
PRODUCT SPECIFICATIONS
Technical specifications of carboxyl polystyrene microspheres
| Product Series | Particle Size Range | Surface Functionality | Solvent / Concentration | Packaging |
| Carboxyl Polystyrene Microspheres | 0.2–100 μm | Carboxyl (-COOH) | DI Water / 50 mg/mL | 1 mL, 5 mL, 50 mL |
| Optional Functionalized Microspheres | Customizable | Amino (-NH₂), Streptavidin, Epoxy, and Other Functional Groups | Available Upon Request | Custom Packaging Available |
Why choose SHBC as your carboxyl polystyrene microspheres manufacturer?
Our company focuses on providing high-quality product suppliers for various industries.
B2B customers can shop with confidence:
Bulk supply, laboratory-grade quality
International Standards:
ISO 9001, ROHS/REACH Compliance
Customization Options:
Particle size, concentration, and surface chemistry can be customized
Fast Delivery:
We can handle both small-batch trials and large-scale production.
Looking for a reliable carboxyl polystyrene microspheres supplier?
Partner with a trusted manufacturer of high-quality carboxyl polystyrene microspheres for diagnostic, research, and industrial applications. Whether you need standard products or application-specific solutions, our team is ready to help you find the right microspheres for your project.
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1. What is the particle size range of your Carboxyl Polystyrene Microspheres?
Our Carboxyl Polystyrene Microspheres are available in particle sizes ranging from 0.2 μm to 100 μm. Custom particle sizes can also be developed for specific application requirements.
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2. Can antibodies be directly conjugated to the microspheres?
Yes. The carboxyl (-COOH) groups on the particle surface allow efficient covalent coupling of antibodies, proteins, peptides, and other biomolecules through standard EDC/NHS activation chemistry.
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3. Are custom particle sizes and concentrations available?
Yes. We offer customization services for particle size, concentration, buffer system, surface modification, and packaging to meet specific research, diagnostic, and industrial requirements.
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4. Are these microspheres suitable for lateral flow assays?
Yes. Carboxyl Polystyrene Microspheres are widely used in lateral flow immunoassays (LFIA), immunochromatographic tests, and rapid diagnostic kits due to their excellent surface functionality and uniform particle size distribution.
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5. What surface functional groups are available besides carboxyl?
In addition to carboxyl (-COOH), we can provide amino (-NH₂), streptavidin, epoxy, and other customized functional groups depending on your application requirements.
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6. What is the standard concentration and suspension medium?
The standard product is supplied at 50 mg/mL suspended in deionized (DI) water. Alternative concentrations and buffer systems are available upon request.
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7. What applications are Carboxyl Polystyrene Microspheres commonly used for?
These microspheres are commonly used in immunoassays, molecular diagnostics, lateral flow tests, cell separation, bioconjugation, calibration standards, and life science research applications.
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8. How uniform are the microspheres?
Our microspheres are manufactured using advanced polymerization technology to ensure excellent monodispersity, narrow particle size distribution, and high batch-to-batch consistency.
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9. What packaging options are available?
Standard packaging options include 1 mL, 5 mL, and 50 mL. Larger volumes and customized packaging can be provided for bulk orders.
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10. Can you provide OEM or custom development services?
Yes. We offer OEM and custom development services, including particle size optimization, surface functionalization, concentration adjustment, and application-specific formulations.