Preparation and characterization of nontoxic magnetic-luminescent nanoprobe

• 作 者: 尹乃强 刘玲 雷洁梅 刘艳松 公茂刚 吴以治 朱立新 许小亮
• 机 构: Department of Physics,University of Science and Technology of China,Center Laboratory,First Affiliat
• 出 处: Chinese Physics B
• 发表日期: 2012年11期
• 关键词: luminescent magnetometer vibrating superiority photoelectron visible cadmium sil

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.

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.