International Journal of Nano Dimension (Int. J. Nano Dimens.) One-pot synthesis and characterization of biopolymer – Iron Oxide nanocomposite Volume 2 (2011) Issue 2, December 2011, Special Issue, NNTC 2011 2024 03 01 One-pot synthesis and characterization of biopolymer – Iron Oxide nanocomposite 10.7508/ijnd.2011.02.002 EN A. Jegan. Department of Chemistry, Sona College of Technology, Salem, India. A. Ramasubbu Post graduate and Research department of Chemistry, Government Arts College, Coimbatore, India. S. Saravanan Department of Chemistry, Sona College of Technology, Salem, India. S. Vasanthkumar Director, School of Science and Humanities and Head of Department of Chemistry and Director i/c of School of Nano Sciences and technology, Karunya University, Coimbatore -641114. India. Journal Article 2024 03 01 The magnetite (Fe3O4) – agar nanocomposite was prepared by co-precipitation of Fe (III) and Fe (II) ions for the first time. The obtained samples were characterized by x-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy and transmission electron microscopy. FT-IR results confirm the formation of Fe3O4 nanoparticles in agar matrix. The XRD results revealed the presence of magnetite nanoparticles. The SEM results confirm that the magnetite nanoparticles are dispersed in the agar matrix. TEM micrograph clearly illustrates that the magnetite nanoparticles sizes varies from 50 – 200 nm.