Extended release of vitamins from magnetite loaded polyanionic polymeric beads

Abstract

Here we explore a novel approach of increasing the release duration of folic and ascorbic acid from magnetite entrapped into calcium–alginate beads. Synthesis and characterization of magnetite-vitamins complexes are reported. The magnetite–vitamins complexes were characterized by FT-IR, XRD, SEM, BET and DTA-TG. Also calcium–alginate magnetic beads were prepared by dripping a mixture of sodium alginate with magnetite-vitamins complexes into calcium chloride solution. Extended release profile of the two experimental models was evaluated and quantified by UV–vis.