Magnetic particles in the size range of 100 nm to 100 µm are suitable for the separation at permanent magnets. They are available with different matrix materials:

• dextran

• crosslinked dextran

• silica-fortified dextran

• bionized nanoferrite ( 100 nm)

• polystyrene

• poly(lactic acid) (PLA)

• silica

• chitosan

• poly(ethylene imine)

• Iron oxide particles

Smaller magnetic particles with diameters of 20 nm to 100 nm require a separation in a high gradient magnetic field or via size exclusion chromatography. They are available with biocompatible polysaccharide coatings:

• dextran

• crosslinked dextran  

• bionized nanoferrite (80 nm)    

Please choose a matrix material for your special selection of functional groups /coatings and diameters of the particles.