Ceramics International, ( ISI ), Volume (45), No (5), Year (2019-4) , Pages (6030-6036)

Title : ( Multi-successive-step pH sensitive procedure: Survey of dominant formation mechanism of therapeutic SPIONs )

Authors: Mohammad Reza Ghazanfari , S. Fatemeh Shams , Mahmoud Reza Jaafari , Mehrdad Kashefi Torbati ,

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Abstract

In the present study, multistep formation mechanism and synthesis reaction pathway of therapeutic magnetite nanoplatforms during a modified chemical coprecipitation method were identified. Critical reaction steps were considered through the study of pH variation trend as a function of structural, microstructural, and magnetic properties. Structural, microstructural, and magnetic characteristics were investigated using XRD, FT-IR, DLS, TEM, and VSM techniques. Results demonstrate the synthesis pathway of magnetite nanoparticles significantly depends on reaction pH and could be deduced in four successive transformation steps as follows: -I- initial materials to ferrous hydroxide, -II- ferrous hydroxide to lepidocrocite phase, -III- lepidocrocite to goethite phase, and -IV- goethite to magnetite -or/and maghemite- phase. Moreover, aqueous ferrofluids of synthesized Fe3O4 nanoparticles demonstrate significant heat-generation ability and SAR values upon applying AC magnetic field which confirm their appropriate efficiency to utilize for therapeutic hyperthermia applications.

Keywords

, Magnetite nanoplatforms Chemical synthesis Reaction pathways X, ray diffractometry Intermediate phase
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@article{paperid:1074302,
author = {Ghazanfari, Mohammad Reza and S. Fatemeh Shams and Mahmoud Reza Jaafari and Kashefi Torbati, Mehrdad},
title = {Multi-successive-step pH sensitive procedure: Survey of dominant formation mechanism of therapeutic SPIONs},
journal = {Ceramics International},
year = {2019},
volume = {45},
number = {5},
month = {April},
issn = {0272-8842},
pages = {6030--6036},
numpages = {6},
keywords = {Magnetite nanoplatforms Chemical synthesis Reaction pathways X-ray diffractometry Intermediate phase},
}

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%0 Journal Article
%T Multi-successive-step pH sensitive procedure: Survey of dominant formation mechanism of therapeutic SPIONs
%A Ghazanfari, Mohammad Reza
%A S. Fatemeh Shams
%A Mahmoud Reza Jaafari
%A Kashefi Torbati, Mehrdad
%J Ceramics International
%@ 0272-8842
%D 2019

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