250nm Standard Polystyrene Microspheres SPS250-10 5%

250nm Standard Polystyrene Microspheres SPS250-10

SHBC SPS250-10 Standard Polystyrene Microspheres are uniform plain polystyrene particles with a nominal diameter of 250 nm and a solid content of 5%.

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

Product Overview

SPS250-10 provides a consistent nanoscale particle system for laboratory research, analytical method development and industrial testing.

The nominal particle diameter is 250 nm, equivalent to 0.25 μm. The concentrated 5% solids dispersion supports flexible dilution, repeated experiments and larger-volume projects.

Technical Specifications

Key Advantages

• Uniform 250 nm particle size

• Regular spherical morphology

• Controlled particle size distribution

• Concentrated 5% solids dispersion

• Stable suspension performance

• Easy dilution to working concentrations

• Suitable for analytical and biological research

• Reliable batch production

• Flexible packaging options

• OEM and customized supply available

Applications of 250nm Polystyrene Microspheres

Particle Size Analysis

SPS250-10 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, aggregation studies and dispersion evaluation.

Electron Microscopy

The spherical particles can support SEM and TEM sample preparation, nanoscale imaging and particle morphology research.

Light-Scattering Research

SPS250-10 provides a defined polymer particle system for laser light scattering, optical response studies and particle-detection research.

Filtration and Membrane Evaluation

The 0.25 μm particles can be used to study membrane retention, filtration efficiency, particle penetration and separation performance.

Colloid and Dispersion Studies

SPS250-10 is suitable for investigating suspension stability, particle aggregation, surface interactions and colloidal behavior.

Physical Adsorption Research

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

Latex Agglutination Assays

SPS250-10 may be evaluated as a particle platform for latex agglutination, diagnostic reagent development and particle-based immunoassays.

Microfluidic Research

The particles can support microfluidic flow visualization, particle transport, channel testing and separation-method development.

Nanomaterial Research

Uniform 250 nm particles provide a reproducible model for nanoparticle dispersion, recovery, surface interaction and characterization studies.

Why Choose 250nm Polystyrene Microspheres?

The 250 nm diameter provides a practical particle size for optical, colloidal, membrane and biological research.

Compared with irregular powders, spherical polystyrene particles provide more consistent geometry for comparative testing.

Typical research areas include:

• Particle characterization

• Dispersion stability

• Aggregation behavior

• Optical scattering

• Protein adsorption

• Membrane filtration

• Particle transport

• Microscopy imaging

Benefits of 5% Solid Content

SPS250-10 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

SPS250-10 has a standard non-functionalized polystyrene surface without added carboxyl or amino groups.

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

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

Standard Microspheres or Certified Size Standards?

SPS250-10 is designed 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 corresponding certification documents are supplied for the specific product and batch.

Customers requiring instrument calibration should confirm particle-size tolerance, CV, measurement method and 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 SPS250-10?

SPS250-10 is a standard plain polystyrene microsphere dispersion with a nominal diameter of 250 nm and a solid content of 5%.

What is 250nm in micrometers?

A diameter of 250 nm is equivalent to 0.25 μm.

What is the particle surface?

SPS250-10 has a standard non-functionalized polystyrene surface without added carboxyl or amino groups.

What are 250nm polystyrene microspheres used for?

Typical applications include particle analysis, DLS research, microscopy, light scattering, filtration studies, colloid research, protein adsorption and immunoassay development.

Can SPS250-10 be diluted?

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

Can the particles adsorb proteins?

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

Can SPS250-10 be used in latex agglutination assays?

The particles may be evaluated as a carrier for passive biomolecule adsorption and latex agglutination assay development. Users should optimize coating and reaction conditions for their specific reagent system.

Are functionalized versions available?

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

Is SPS250-10 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 SPS250-10 Samples and Quotations

Contact Shanghai SanYu Biotechnology Co., Ltd. for SPS250-10 samples, technical specifications, customized packaging and bulk quotations.

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

For Research Use Only.