220nm Standard Polystyrene Microspheres SPS220-10 5%

220nm Standard Polystyrene Microspheres SPS220-10

SHBC SPS220-10 Standard Polystyrene Microspheres are plain polystyrene particles with a nominal diameter of 220 nm and a solid content of 5%.

The spherical particles are suitable for particle characterization, microscopy, light-scattering research, filtration studies, colloid analysis and physical adsorption applications.

Product Overview

SPS220-10 provides a consistent nanoscale particle system for laboratory research, analytical method development and industrial testing.

The nominal diameter is 220 nm, equivalent to 0.22 μm. Its concentrated 5% solids format supports flexible dilution, repeated experiments and larger-volume research projects.

Technical Specifications

Key Advantages

• Nominal diameter of 220 nm

• Regular spherical morphology

• Controlled particle size distribution

• Concentrated 5% solids dispersion

• Easy dilution to working concentrations

• Suitable for multiple analytical methods

• Good suspension performance

• Reliable batch-to-batch supply

• Flexible packaging volumes

• OEM and customized production available

Applications of 220nm Polystyrene Microspheres

Particle Size Analysis

SPS220-10 can be used as a model particle for particle-size measurement, comparative testing and analytical method development.

Dynamic Light Scattering

The controlled particle diameter supports DLS method optimization, hydrodynamic-size measurement, dispersion evaluation and aggregation studies.

Electron Microscopy

The spherical particles can be used in SEM and TEM sample preparation, nanoscale imaging and morphology research.

Atomic Force Microscopy

SPS220-10 can support AFM imaging, surface characterization and nanoscale measurement studies.

Laser Light-Scattering Research

The particles provide a defined polymer system for optical scattering, particle detection and instrument-response studies.

Filtration and Membrane Evaluation

The 0.22 μm particles are suitable for studying membrane retention, filtration efficiency, particle penetration and separation performance.

Colloid and Dispersion Research

SPS220-10 can be used to investigate suspension stability, particle aggregation, surface interactions and colloidal behavior.

Particle Counter Research

The microspheres may support particle-detection, counting-method and instrument-performance studies.

Physical Adsorption Studies

The plain polystyrene surface can be evaluated for passive adsorption of antibodies, antigens, proteins, peptides and other biomolecules.

Immunoassay Development

SPS220-10 may be evaluated as a polymer particle platform for latex agglutination, particle-based assays and preliminary immunoreagent development.

Why Choose 220nm Polystyrene Microspheres?

The 220 nm diameter provides a practical nanoscale model for optical, membrane, colloidal and biological research.

Spherical polystyrene particles provide more consistent geometry than irregular powders, helping reduce particle-shape effects during comparative testing.

Typical research areas include:

• Nanoparticle characterization

• Particle-size measurement

• Dispersion stability

• Aggregation studies

• Optical scattering

• Surface adsorption

• Membrane filtration

• Microscopy imaging

Benefits of 5% Solid Content

SPS220-10 is supplied at 5% solids for flexible laboratory and development use.

The concentrated format allows users to prepare different working concentrations while supporting repeated experiments, assay development, pilot studies and bulk research requirements.

Standard Plain Polystyrene Surface

SPS220-10 has a standard non-functionalized polystyrene surface without added carboxyl or amino groups.

The hydrophobic surface is suitable for general particle research and passive biomolecule adsorption.

For controlled covalent coupling, SHBC can also supply carboxyl, amino and other functionalized polystyrene microspheres.

Standard Microspheres or Certified Size Standards?

SPS220-10 is positioned as a standard plain polystyrene microsphere for research and method development.

It should only be described as a certified or traceable particle-size standard when the required certification documents are supplied for the specific product and batch.

Customers requiring instrument calibration should confirm the required particle-size tolerance, CV, measurement method and traceability documentation before ordering.

Why Choose SHBC?

Shanghai SanYu Biotechnology Co., Ltd. manufactures standard and functional microspheres for scientific research, diagnostic development and industrial applications.

SHBC supply advantages include:

• Multiple particle sizes available

• Standard and functional surfaces

• Laboratory sample supply

• Pilot-scale production

• Bulk manufacturing capability

• Customized solid content

• Flexible packaging volumes

• OEM and private-label services

• Technical product-selection support

Customized Microsphere Supply

SHBC can customize polystyrene microspheres according to project requirements.

Customization options include:

• Customized particle diameter

• Customized solid content

• Customized dispersion medium

• Carboxyl surface modification

• Amino surface modification

• Fluorescent labeling

• Colored particles

• Customized packaging volume

• OEM labeling

• Bulk production

Storage and Handling

Keep the container tightly closed and store according to the product label, COA and SDS.

Gently mix or briefly sonicate the suspension before use. Avoid freezing, drying, direct sunlight, high temperatures and contamination.

Use clean laboratory tools to reduce particle contamination and aggregation.

Frequently Asked Questions

What is SPS220-10?

SPS220-10 is a standard plain polystyrene microsphere dispersion with a nominal diameter of 220 nm and a solid content of 5%.

What is 220nm in micrometers?

A diameter of 220 nm is equivalent to 0.22 μm.

What is the particle surface?

SPS220-10 has a standard non-functionalized polystyrene surface without added carboxyl or amino groups.

What are 220nm polystyrene microspheres used for?

Typical applications include particle analysis, DLS research, microscopy, light scattering, filtration evaluation, colloid studies and physical adsorption research.

Can SPS220-10 be diluted?

Yes. The 5% dispersion can be diluted to the required working concentration using a compatible dispersion medium.

Can the microspheres adsorb proteins?

Plain polystyrene surfaces can be evaluated for passive adsorption of proteins, antibodies, antigens and other biomolecules.

Are functionalized versions available?

Yes. SHBC can provide carboxyl, amino, fluorescent, colored and other customized polystyrene microspheres.

Can SPS220-10 be used for 0.22 μm membrane studies?

The particles may be evaluated in membrane-retention and filtration-efficiency research. Users should confirm the test method, membrane properties and required particle-size tolerance.

Is SPS220-10 a certified calibration standard?

The product should only be described as certified or traceable when corresponding documentation is supplied for the specific product and batch.

Are bulk quantities available?

Yes. SHBC supports sample evaluation, pilot projects, customized packaging and bulk production.

Request SPS220-10 Samples and Quotations

Contact Shanghai SanYu Biotechnology Co., Ltd. for SPS220-10 samples, technical specifications, customized packaging and bulk quotations.

SHBC supplies standard polystyrene microspheres for research laboratories, instrument developers, filtration companies, diagnostic developers and industrial research projects.

For Research Use Only.