CD Bioparticles offers a range of Plain Polystyrene Particles in various diameters ranging from 25 nm to 750 µm. Our experienced chemists control the synthesis to provide accurate monodisperse size distributions. Polystyrene particles are slightly negatively charged due to surface charges, which are derived from fragments of the initiator used to start the polymerization reaction. By convention, these are considered to be plain or neutral particles as they are not specifically functionalized. These monodisperse polystyrene particles, also known as latex microspheres, are used in a wide range of immunodiagnostic assays, as dimensional standards for device calibration, cell biology applications, etc. https://www.cd-bioparticles.co....m/products/plain-pol