Colloidal Stability of Iron Oxide Nanoparticles Coated with Different Capping Agents

被引：13
|
作者：
Abu-Noqta, O. A. [1 ,2 ]
Aziz, A. A. [1 ,2 ]
Usman, A. I. [1 ,2 ]
机构：
[1] Univ Sains Malaysia, Sch Phys, George Town 11800, Malaysia
[2] USM, Inst Res Mol Med, George Town 11800, Malaysia
来源：
MATERIALS TODAY-PROCEEDINGS | 2019年 / 17卷
关键词：
Iron oxide; co-precipitation; stability; MAGNETITE NANOPARTICLES; SIZE;
D O I：
10.1016/j.matpr.2019.06.516
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The colloidal stability of iron oxide nanoparticles (IONPs) played an important role in biomedical applications. In this study, IONPs were synthesized through one-pot co-precipitation route in the presence of capping agent. The capping agents used for coating IONPs were tri-sodium citrate, polyvinylpyrrolidone (PVP) and cetyltrimethylammonium bromide (CTAB) to enhance their stability. The prepared IONPs were characterized by various techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and Malvern Zetasizer Nano. It was observed that the IONPs prepared with citrate as a capping agent showed the higher value of zeta potential (zeta = -44mV) compared to IONPs prepared with PVP (zeta = -10mV) and CTAB (zeta = 29.7mV). This revealed that the presence of citrate during IONPs synthesis enhanced the stability of IONPs better than PVP and CTAB. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1072 / 1077
页数：6
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