Polystyrene / polymethacrylate particles  

  • are monodisperse particles from polystyrene, substituted polystyrenes, polystyrene-co-polymers, polymethacrylate derivatives or cross-linked polymers,

  • are provided as standard products in the size range of 25 nm to 50 microns,

  • are designed with the surface functionalities NH2, epoxy and COOH for the covalent binding of proteins, antibodies or other molecules,

  • are available with covalently bound proteins (avidin, streptavidin, protein A, albumin) or other biomolecules (chitosan, collagen),

  • can be delivered with adjustable positive Zeta potentials up to +30 mV (surface: NR3+) or adjustable negative Zeta potentials up to –50 mV (COOH or SO3H) on request,

  • can be offered with the nickel(II) chelator nitrilotriacetic acid (NTA) or ready to use with the corresponding nickel complex (Ni-NTA) for the binding of histidine labeled proteins,

  • are provided with different metal dotations (Pd, Pt, Ag, Au),

  • are available with various hydrophilic surfaces (PEG 300, alkyl-OH, acrylate) and hydrophobic surfaces (octyl (C8), octadecyl (C18), octyl/octadecyl (C8/C18)) or a silica surface (SiO2).