Carboxyl-Sulfate Microspheres

Polysciences’ Carboxyl-Sulfate Microspheres are monodisperse, surfactant-free polystyrene beads engineered with both carboxyl and sulfate surface charge groups, supplied as 2.5% solids (w/v) aqueous suspensions. These beads offer consistent particle count (e.g. ~4.55×10¹⁰ particles/mL for 1.00 µm) and precise mean diameters, making them ideal for diagnostic assays, immunoassays, and surface binding applications.