Novel ZnO/MgO/Fe2O3 composite optomagnetic nanoparticles

被引：7

作者：

Kaminska, I. ^{[1
]}

Sikora, B. ^{[1
]}

Fronc, K. ^{[1
]}

Dziawa, P. ^{[1
]}

Sobczak, K. ^{[1
]}

Minikayev, R. ^{[1
]}

Paszkowicz, W. ^{[1
]}

Elbaum, D. ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2013年 / 25卷 / 19期

关键词：

RADIOFREQUENCY-INDUCED HYPERTHERMIA; MAGNETIC NANOPARTICLES;

D O I：

10.1088/0953-8984/25/19/194105

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A facile sol-gel synthesis of novel ZnO/MgO/Fe2O3 nanoparticles (NPs) is reported and their performance is compared to that of ZnO/MgO. Powder x-ray diffraction (XRD) patterns reveal the crystal structure of the prepared samples. The average particle size of the sample was found to be 4.8 nm. The optical properties were determined by UV-vis absorption and fluorescence measurements. The NPs are stable in biologically relevant solutions (phosphate buffered saline (PBS), 20 mM, pH = 7.0) contrary to ZnO/MgO NPs which degrade in the presence of inorganic phosphate. Superparamagnetic properties were determined with a superconducting quantum interference device (SQUID). Biocompatible and stable in PBS ZnO/MgO/Fe2O3 core/shell composite nanocrystals show luminescent and magnetic properties confined to a single NP at room temperature (19-24 degrees C), which may render the material to be potentially useful for biomedical applications.

引用

页数：7

共 30 条

[1]

[Anonymous], NANOMATERIALS LIFE S

[2]

[Anonymous], 5 INT C BIOINF BIOM

[3]

[Anonymous], J MAT RES

[4] Magnetic Fe doped ZnO nanofibers obtained by electrospinning [J].