The present invention relates to the fields of biotechnology and molecular biology. The magnetic nanomaterial comprises magnetic nanoparticles of homogeneous size, shape, and magnetic orientation that comprises a magnetic core ferromagnetic at room temperature andor operating temperatures, and a non-magnetic matrix encapsulating the magnetic core. Thus, the metallic Interstitial silicon density element is removed or reduced to thereby form a gettered region. The calculation of the estimate is based at least in part on the bit rate available on the network and an encoding bit rate of the content stream.