Fig. 3From: Co-immobilization of laccase and TEMPO onto amino-functionalized magnetic Fe3O4 nanoparticles and its application in acid fuchsin decolorizationVSM images of magnetic Fe3O4 nanoparticles (a) and amino-functionalized Fe3O4 nanoparticles (b). The hysteresis loop of the both nanoparticles revealed a ferromagnetic behavior and the remanence and coercive force was near to zeroBack to article page