PS Microspheres

Product Description

Polystyrene (PS) microspheres are spherical colloidal particles synthesized from amorphous polystyrene polymers using advanced polymerization techniques. These methods result in microspheres with a highly uniform particle size, low coefficient of variation (CV%), and excellent dispersibility.

As a professional supplier of plastics and related services, Alfa Chemistry offers a comprehensive range of high-quality PS microspheres. Our PS microspheres feature an anionic surface structure, ensuring long-term colloidal stability and resistance to flocculation, even in the presence of multivalent ions. Using SEM, TEM, and DLS, each batch is rigorously characterized and quality-controlled to ensure consistent performance.

• Materials: PS, ultrapure water
• Functionalization options: Carboxyl (-COOH), amino (-NH2), aldehyde (-CHO), epoxy, or chloromethyl (-CH₂Cl) groups
• Packaging options: 10 mL, 100 mL, 1,000 mL

Product Specifications

Catalog	Product	Particle Size	Content	Size Uniformity
PL-PS-A064	PS Microsphere	25 nm	50 mg/ml	<3.0%
PL-PS-A065	PS Microsphere	50 nm	50 mg/ml	<3.0%
PL-PS-A066	PS Microsphere	100 nm	50 mg/ml	<3.0%
PL-PS-A067	PS Microsphere	150 nm	50 mg/ml	<3.0%
PL-PS-A068	PS Microsphere	200 nm	50 mg/ml	<3.0%
PL-PS-A069	PS Microsphere	250 nm	50 mg/ml	<3.0%
PL-PS-A070	PS Microsphere	300 nm	50 mg/ml	<3.0%
PL-PS-A071	PS Microsphere	350 nm	50 mg/ml	<3.0%
PL-PS-A072	PS Microsphere	450 nm	50 mg/ml	<3.0%
PL-PS-A073	PS Microsphere	500 nm	50 mg/ml	<3.0%
PL-PS-A074	PS Microsphere	600 nm	50 mg/ml	<3.0%
PL-PS-A075	PS Microsphere	700 nm	50 mg/ml	<3.0%
PL-PS-A076	PS Microsphere	800 nm	50 mg/ml	<3.0%
PL-PS-A077	PS Microsphere	900 nm	50 mg/ml	<3.0%
PL-PS-A078	PS Microsphere	1 μm	50 mg/ml	<3.0%
PL-PS-A079	PS Microsphere	2 μm	50 mg/ml	<3.0%
PL-PS-A080	PS Microsphere	3 μm	50 mg/ml	<3.0%
PL-PS-A081	PS Microsphere	4 μm	50 mg/ml	<3.0%
PL-PS-A082	PS Microsphere	5 μm	50 mg/ml	<3.0%
PL-PS-A083	PS Microsphere	6 μm	50 mg/ml	<3.0%
PL-PS-A084	PS Microsphere	8 μm	50 mg/ml	<3.0%
PL-PS-A085	PS Microsphere	10 μm	50 mg/ml	<3.0%
PL-PS-A086	PS Microsphere	15 μm	50 mg/ml	<3.0%
PL-PS-A087	PS Microsphere	20 μm	50 mg/ml	<3.0%
PL-PS-A088	PS Microsphere	25 μm	50 mg/ml	<3.0%
PL-PS-A089	PS Microsphere	30 μm	50 mg/ml	<3.0%
PL-PS-A090	PS Microsphere	50 μm	50 mg/ml	<3.0%
PL-PS-A091	PS Microsphere	80 μm	50 mg/ml	<3.0%
PL-PS-A092	PS Microsphere	100 μm	50 mg/ml	<3.0%

Key Features and Benefits

• Exceptional Stability and Longevity: Formulated with only a minimal amount of surfactant, our microspheres boast outstanding system stability and an impressive shelf life of up to 5 years, ensuring long-term usability and reliability.
• High Monodispersity and Reproducibility: A defining characteristic is their superior particle size uniformity, with a typical coefficient of variation (CV%) of less than 3%. This translates to minimal batch-to-batch variation and excellent reproducibility in your research and manufacturing processes.
• High Specific Surface Area and Adsorption: Their large specific surface area significantly enhances their adsorption properties, making them highly effective for applications requiring efficient binding, capture, or separation.
• Excellent Material Affinity and Biocompatibility: These crucial properties make our microspheres well-suited for sensitive applications in biological and medical fields, ensuring compatibility with diverse substances and biological systems.

Application Areas

PS microspheres are widely used across multiple industries and research disciplines, including:

• Metrology & Calibration: As size standards in microscopy, flow cytometry, and particle sizing instruments.
• Biomedical Research: In immunoassays, cell sorting, and diagnostic reagent development.
• Microfluidics & Bioengineering: For modeling fluid behavior in confined systems and as carriers for biomolecules.
• Optics & Electronics: In photonic crystal fabrication and as dielectric fillers or spacers.
• Filtration & Self-Assembly: Ideal for membrane testing, colloidal crystal formation, and ordered packing studies.

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