Effect of Chelating Process on the Size Controlling of Fe3O4 Magnetic Nanoparticles Synthesized byCoprecipitation Method

Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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NASTARANCANSER01_096

تاریخ نمایه سازی: 26 شهریور 1395

Abstract:

In last decades, the magnetic nanoparticles have been extremely employed in manyapplications such as electronic devices, sealing technology, and biomedical usages like MRIcontrast agent, magnetic targeted drug delivery, and magnetic hyperthermia. On the otherhand, the particle size can be known as a critical property of powders in all applicationsespecially in biomedical ones. In present research, the effects of different chelating agents onthe final size of synthesized Fe3O4 nanoparticles during coprecipitation method wereinvestigated. In order to achieve these aims, the citric, lauric, oxalic, and stearic acids wereutilized in situ as chelating agents. The studies of particles hydrodynamic size were done bydynamic light scattering (DLS) analyses. Moreover, the structural, microstructural, andmagnetic properties of particles were evaluated by X-ray diffraction (XRD), transmissionelectron microscopy (TEM), and vibration sample magnetometer (VSM) techniques. Theresults show that the utilization of chelating agents can be caused to limitation of particlesgrowth and control of their size in nanometric scales. Furthermore, although the stearic acidagent can be led to lower size of particles due to more effective chelating process, theseparticles show relatively lower crystallinity degree and saturation magnetization (Ms)compared to coated particles by citric acid.

Authors

Mohammad Reza Ghazanfari

Department of Materials Science and Engineering, Ferdowsi University of Mashhad, 9177948974, Mashhad, Iran

Mehrdad Kashefi

Department of Materials Science and Engineering, Ferdowsi University of Mashhad, 9177948974, Mashhad, Iran

Seyyedeh Fateme Shams

Department of Materials Science and Engineering, Ferdowsi University of Mashhad, 9177948974, Mashhad, Iran

Mahmoud Reza Jaafari

Biotechnology Research Center, Nanotechnology Research Center, School of Pharmacy, Mashhad University of MedicalSciences, Mashhad, Iran