COOH

Magnetic and fluorescent silica particles (sicastar®-M-CT-greenF and -redF) are available with carboxylic acid groups (COOH) on the particle surface for the covalent binding of proteins, antibodies or other molecules. The magnetic silica particles are available with red fluorescence (sicastar®-M-CT-redF, excitation: 569 nm, emission: 585 nm) and with green fluorescence (sicastar®-M-CT-greenF, excitation: 485 nm, emission: 510 nm). They consist of cluster-typed aggregates in the size range of 3 – 10 µm with a mean diameter of 6 microns.
The particles are delivered in aqueous suspension without any surfactants.