Direct synthesis of magnetite nanoparticles from iron(II) carboxymethylcellulose and their performance as NMR contrast agents - Silva, Delmárcio Gomes da; Toma, Sérgio Hiroshi; Melo, Fernando Menegatti de; Carvalho, Larissa Vieira C; Magalhães, Alviclér; Sabadini, Edvaldo; Santos, Antonio Domingues dos; Araki, Koiti; Toma, Henrique Eisi (Journal of Magnetism and Magnetic Materials, 2016)