Defect induced photoluminescence and ferromagnetic properties of bio-compatible SWCNT/Ni hybrid bundles

► The motivation of the present work is the realization of magnetic, luminescent and biocompatible structured nanostructures for possible biomedical applications.We could attain this goal. ► Moreover, a detailed mechanism is discussed in the manuscript for the observed interesting magnetic properties. ► The mechanism is verified using various experimental tools. ► A defect induced photoluminescence was observed and it is explained here in the manuscript with a detailed mechanism. ► Biocompatibility of the resultant structures is verified using standard assays. Such a novel and hybrid structure was not investigated so far in the literature according to the best of our knowledge.