Non-Functionalized Polystyrene

polystyrene beads

We offer uniform polystyrene latex microspheres that may be used as-is for standards or markers, or coated with proteins via adsorption for use in diagnostic tests and assays. See TechNote 204, Adsorption to Microspheres. Our spheres are synthesized via emulsion polymerization, and are available in diameters from ~20nm-90µm, with typical size CVs of 5-10%. For applications that require highly stringent CVs (e.g. 2-5%), call for product availability. Most products are supplied as a 10% solids suspension (100mg/mL) in de-ionized water with surfactant and sodium azide.


Many proteins may be easily and stably absorbed to hydrophobic, non-functionalized microspheres. Divinylbenzene (DVB) confers additional solvent and heat resistance to our crosslinked spheres. Unless noted otherwise, PS and PS/DVB microspheres are available as ~10% solids (w/w) aqueous suspensions in these standard amounts: 0.5g, 1.0g, 1.5g, and 5.0g.

*Please note: If you are NOT ordering via website, please specify a lot number if multiple lots are available.
Catalog Number Catalog Code Nominal Diameter

Specification Range

Product Data Sheet
PS02001             PS02N 0.025µm 0.015 - 0.035µm PDS 732.pdf
PS02002 PS02N 0.050µm 0.040 - 0.060µm PDS 732.pdf
PS02003 PS02N 0.075µm 0.065 - 0.085µm PDS 732.pdf
PS02004 PS02N 0.100µm 0.090 - 0.110µm PDS 732.pdf
PS02005 PS02N 0.125µm 0.115 - 0.135µm PDS 732.pdf
PS02006 PS02N 0.150µm 0.140 - 0.160µm PDS 732.pdf
PS02007 PS02N 0.175µm 0.165 - 1.185µm PDS 732.pdf
PS02008 PS02N 0.200µm 0.190 - 0.210µm PDS 732.pdf
PS02009 PS02N 0.300µm 0.270 - 0.330µm PDS 732.pdf
PS02010 PS02N 0.400µm 0.370 - 0.430µm PDS 732.pdf
PS03001 PS03N 0.500µm 0.470 - 0.530µm PDS 732.pdf
PS03002 PS03N 0.600µm 0.570 - 0.630µm PDS 732.pdf
PS03003 PS03N 0.700µm 0.670 - 0.730µm PDS 732.pdf
PS03004 PS03N 0.800µm 0.770 - 0.830µm PDS 732.pdf
PS03005 PS03N 0.900µm 0.870 - 0.930µm PDS 732.pdf
PS04001 PS04N 1.00µm 0.95 - 1.05µm PDS 732.pdf
PS05001 PS05N 2.00µm 1.80 - 2.20µm PDS 732.pdf
PS05002 PS05N 3.00µm 2.80 - 3.20µm PDS 732.pdf
PS05003 PS05N 4.00µm 3.80 - 4.20µm PDS 732.pdf
PS06001 PS06N 5.00µm 4.80 - 5.20µm PDS 732.pdf
PS06002 PS06N 5.50µm 5.30 - 5.70µm PDS 732.pdf
PS06003 PS06N 6.00µm 5.80 - 6.20µm PDS 732.pdf
PS06004 PS06N 7.00µm 6.80 - 7.20µm PDS 732.pdf
PS06005 PS06N 7.50µm 7.30 - 7.70µm PDS 732.pdf
PS07001 PS07N 10.00µm 9.50 - 10.50µm PDS 732.pdf
PS07002 PS07N 15.00µm 14.50 - 15.50µm PDS 732.pdf
PS07003    PS07N 20.00µm 19.00 - 21.00µm PDS 732.pdf
PS08001 PS08N >25.µm >25.00µm PDS 732.pdf


Joubert, M, Hokom, M, Eakin, C, Zhou, L, Deshpande, M, Baker,M, …Jawa, J (2012) Highly Aggregated Antibody Therapeutics Can Enhance the in Vitro Innate and Late-stage T-cell Immune Responses J Biol Chem 287:25266