| mesoporous silica particles | CD Bioparticles offers a comprehensive list of basic, coated, functional and conjugated silica particles with uniform size and shapes. Our silica particles in the size range of 10 nm to 1.5 µm are monodisperse and nonporous particles with a density of 2.0 g/cm³, while particles between 3 and 20 µm are porous particles with a density of 1.8 g/cm³. Basic silica particles have a hydrophilic surface with terminal Si-OH bonds, which are highly stable in organic solvents and aqueous buffers. By precisely surface engineering, silica particles are either functionalized with active groups such as carboxyl, amine and NHS, or conjugated with a variety of biological ligands and fluorophores. |