Magnetic heating of water dispersible and size-controlled superparamagnetic cobalt iron oxide nanoparticles

被引：2

作者：

Duong, Hong Diu Thi ^{[1
]}

Yoon, Sang-Hyeok ^{[1
]}

Nguyen, Dung The ^{[2
]}

Kim, Kyo-Seon ^{[1
]}

机构：

[1] Kangwon Natl Univ, Dept Chem Engn, Chunchon 200701, South Korea

[2] Univ Ulsan, Chem Ind Res Inst, Core Res Inst, Ulsan 44776, South Korea

来源：

POWDER TECHNOLOGY | 2023年 / 427卷

关键词：

Cobalt ferrite nanoparticles; Controlled synthesis; Ligand exchange; Surface coating; Magnetic heating; Hyperthermia treatment; COFE2O4; NANOPARTICLES; FERRITE NANOPARTICLES; SPIN; FUNCTIONALIZATION; COPRECIPITATION;

D O I：

10.1016/j.powtec.2023.118720

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Magnetic nanoparticles have been of great interest for various biomedical applications due to their controllability in the distance. Monodisperse superparamagnetic CoFe2O4 (CFO) nanoparticles were synthesized by solvothermal method with oleic acid. The oleic acid ligands are exchanged with citric acid to obtain waterdispersible citric acid-coated CA (CFO-CA) nanoparticles. The M-H curve recorded at room temperature shows the superparamagnetic nature of CFO nanoparticles for both oleic- and citric-coated samples. The magnetic heating performance of CFO-CA shows an exciting dependence on the particle size and surface functionality. The hyperthermia efficiency of CFO-CA nanoparticles increases with increasing magnetic field strength and nanoparticle concentration. A specific absorption ratio value of 152.7 W/g obtained in this study is comparable to other investigations, demonstrating a great potential of CFO-CA nanoparticles for hyperthermia-based treatments. This controlled synthesis process can be applied to various functional biomedical nanoparticles to prepare nanoparticles with designed surface moieties for further potential applications.

引用

页数：9

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