Peng et al. (2012) studied an Mn-ferrite (MnFe2O4)-decorated GO nanocomposite for biomedical applications. They observed that the magnetic property of the ferrites can be effectively used as an ideal hyperthermia and contrast MRI agent. The nanocomposite when PEGylated showed excellent biocompatibility [136]. Recently, Liu et al. (2013) synthesized a hydroxyapatite-GO nanocomposite as biocompatible prosthetic. They found that the (300) and (002) plane hydroxyapatite nanorods in the graphene matrix played a crucial role in maintaining the composite’s mechanical properties. Given its superior mechanical property, the authors suggested the nanocomposite’s potential in composite and biomedical industries [136].