Green fabrication of biologically active magnetic core-shell Fe3O4/Au nanoparticles and their potential anticancer effect

Izadiyan, Zara and Shameli, Kamyar and Miyake, Mikio and Teow, Sin Yeang * and Peh, Suat Cheng * and Shaza Eva M, and Siti Husnaa, M T (2019) Green fabrication of biologically active magnetic core-shell Fe3O4/Au nanoparticles and their potential anticancer effect. Materials Science and Engineering: C, 96. pp. 51-57. ISSN 09284931

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Official URL: http://doi.org/10.1016/j.msec.2018.11.008

Abstract

Core-shell Fe3O4/Au nanostructures were constructed using an advanced method of two-step synthesis from Juglans regia (walnut) green husk extract. Several complementary methods were applied to investigate structural and magnetic properties of the samples. X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), electron diffraction, optical, thermogravimetric analysis (TGA), and vibrating sample magnetometer (VSM) were used for nanoparticle characterizations. As shown by HR-TEM, the mean diameter of core-shell Fe3O4/Au nanoparticles synthesized using co-precipitation method was 6.08 ± 1.06 nm. This study shows that the physical and structural properties of core-shell Fe3O4/Au nanoparticles possess intrinsic properties of gold and magnetite. VSM revealed that the core-shell Fe3O4/Au have high saturation magnetization and low coercivity due to the magnetic properties. The core-shell nanoparticles show the inhibitory concentration (IC)50 of 235 μg/ml against a colorectal cancer cell line, HT-29. When tested against non-cancer cells, IC50 was not achieved even up to 500 μg/ml. This study highlights the magnetic properties and anticancer action of core-shell Fe3O4/Au nanoparticles. This compound can be ideal candidate for cancer treatment and other biomedical applications.

Item Type: Article
Uncontrolled Keywords: Core-shell; Fe3O4/Au nanoparticles; Magnetic; Juglans regia; Green husk; Anticancer assay
Subjects: R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)
Divisions: Others > Non Sunway Academics
Sunway University > School of Healthcare and Medical Sciences
Sunway University > School of Healthcare and Medical Sciences > Department of Medical Sciences
Depositing User: Dr Janaki Sinnasamy
Related URLs:
Date Deposited: 27 Nov 2019 08:29
Last Modified: 27 Nov 2019 08:29
URI: http://eprints.sunway.edu.my/id/eprint/1147

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