Red fluorescent magnetic bionized nanoferrite particles (BNF-red)

• combine separation and detection purposes,

• have a red fluorescence (excitation: 547 nm, emission: 573 nm),

• are thermally blocked at room temperature and show specific interaction with alternating magnetic fields,

• are prepared via the core-shell method with a core of 75-80% (w/w) magnetite and a shell of crosslinked dextran (BNF-Dextran-red) or crosslinked hydroxyethyl starch (BNF-Starch-red),

• are available with a particle diameter of 100 nm and can be separated with conventional permanent magnets,  

• are available with a plain surface or with amino groups on the surface for the covalent binding of proteins, antibodies or other molecules.