Preparation and characterization of nontoxic magnetic-luminescent nanoprobe

doi:10.1088/1674-1056/21/11/116101

Abstract A novel nontoxic, magnetic, and luminescent nanoprobe is prepared by using complex nanoparticles, which are composed of Fe₃O₄ nanoparticles and Mn-doped ZnS quantum dots (QDs). The nanocomposite probe can provide visible optical and magnetic resonance images simultaneously. Compared with the previously toxic cadmium and mercury based QDs, the superiority of the Mn-doped ZnS QDs is little virulence. The structure and the properties of the particles are characterized by energy dispersive X-ray analysis spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, photoluminescence spectroscopy, and vibrating sample magnetometer.

Keywords: optical property magnetic property nanostructure

Received: 04 May 2012
Revised: 08 June 2012
Accepted manuscript online:

PACS:	61.05.C-	(X-ray diffraction and scattering)
	78.55.-m	(Photoluminescence, properties and materials)
	75.75.-c	(Magnetic properties of nanostructures)
	68.37.Lp	(Transmission electron microscopy (TEM))

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51272246 and 81172082).

Corresponding Authors: Zhu Li-Xin, Xu Xiao-Liang
E-mail: lx-zhu@163.com; xlxu@ustc.edu.cn

Cite this article:

Yin Nai-Qiang (尹乃强), Liu Ling (刘玲), Lei Jie-Mei (雷洁梅), Liu Yan-Song (刘艳松), Gong Mao-Gang (公茂刚), Wu Yi-Zhi (吴以治), Zhu Li-Xin (朱立新), Xu Xiao-Liang (许小亮 ) Preparation and characterization of nontoxic magnetic-luminescent nanoprobe 2012 Chin. Phys. B 21 116101

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