Magnetic Nanoparticles; Synthesis, Characterization and Application as Contrast Agent in Magnetic Resonance Imaging (MRI)

被引：1

作者：

Yadav, Ravi S. ^{[1
]}

Sharma, Vinay ^{[2
]}

Kuanr, Bijoy K. ^{[1
]}

机构：

[1] Jawaharlal Nehru Univ, Special Ctr Nanosci, New Delhi 67, India

[2] Univ Delhi, Dept Elect Sci, Delhi 110007, India

来源：

ADVANCED SCIENCE LETTERS | 2014年 / 20卷 / 7-9期

关键词：

Nanoparticle; X-Ray Diffraction; Transmission Electron Microscopy; Contrast Agent; GOLD NANOPARTICLES;

D O I：

10.1166/asl.2014.5562

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Nanocrystalline magnetic nanoparticles (NPs) of Fe3O4 and Ag coated Fe3O4 were synthesized. Samples were synthesized from precursor solutions having pH values of 10. Structural properties were determined using X-ray diffraction (XRD), transmission electron microscopy (TEM), and magnetic characterization was done using vibrating sample magnetometer (VSM). Confirms the fcc spinel structures were confirmed for Fe3O4. TEM images confirms the Ag coating on Fe3O4 NPs. The saturation magnetization of Fe304 NPs and Fe3O4@Ag NPs were observed as 80 and 34 emu/g at 1.5 T, respectively from the VSM results. Dextran coated magnetic NPs were used on mice as contrast agent for magnetic resonance imaging (MRI).

引用

页码：1548 / 1550

页数：3

共 7 条

[1] Gold nanoparticles are taken up by human cells but do not cause acute cytotoxicity [J].