PolyMicrospheres specializes in the research, development, and manufacturing of highly uniform polymer microspheres for clinical diagnostic applications. The company also develops microsphere- and nanoparticle-based drug delivery systems for the pharmaceutical, medical device, and healthcare industries.With state-of-the-art facilities and advanced polymerization and microencapsulation technologies, PolyMicrospheres develops and manufactures a comprehensive portfolio of microspheres and drug delivery systems with a wide range of particle sizes and surface chemistries.Since its founding in 1990, PolyMicrospheres has focused on two core areas:the development and precision manufacturing of highly uniform microspheres for immunodiagnostic assays, and the design and development of microsphere-based drug delivery systems for the controlled release of pharmaceutical compounds over periods ranging from weeks to months.

■ Product Portfolio

Vicbio Biotechnology Co., Ltd. provides the full range of polymicrospheres products, covering a wide array of particle sizes and surface chemical properties. We offer the industry's broadest product line: Carboxyl Microspheres (10 series with over 150 products, including the SpaceLink series with spacer arms, specialty carboxyl series with steric hindrance effects, lipophilic series, and low-density series), Bare Surface Microspheres, Ready-to-Use Chloromethyl and Epoxy Microspheres, Magnetic Particles, Fluorescent/Stained Microspheres, and Microbeads.

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1. Standard Carboxylated Microspheres

An ideal choice for most applications. This category includes over 100 products, each particle size optimized with a carboxyl group density of 50–300 µEq/g.

2. Specialty Carboxylated Microspheres

The Msp series, featuring steric stabilization, minimizes non-specific binding. The OmniBind lipophilic series enhances conformational compatibility. The low-density series reduces sedimentation, while the SpaceLink series, equipped with spacer arms, is designed for coupling with large ligands.

3. Pre-Activated Microspheres

Ready-to-use chloromethyl or epoxy-activated microspheres that allow one-step covalent coupling with amino groups, simplifying conjugation workflows.

4. Plain Surface Microspheres

More than 50 products with uniform surface morphology, providing optimal performance for passive adsorption applications.

5. Specialty Plain Surface Microspheres

Includes the OmniBind lipophilic series, lightweight hydrophilic series, and low-density series, designed to meet specialized assay and material performance requirements.

■ Product List