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Coaxial nanofibers to help achieve tunable and enhanced simultaneous magnetic-luminescent bifunctionality

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Abstract

A new nanostructure of CoFe2O4@Y2O3:5 %Tb3+ magnetic-luminescent bifunctional coaxial nanofibers has been successfully fabricated via electrospinning technology using a homemade coaxial spinneret. The morphologies, structures, magnetic and luminescent properties of the final products were investigated in detail by X-ray diffractometry, scanning electron microscopy, transmission electron microscopy, vibrating sample magnetometry, and fluorescence spectroscopy. The results show the CoFe2O4@Y2O3:5 %Tb3+ magnetic-luminescent bifunctional coaxial nanofibers simultaneously possess superior magnetic and luminescent properties due to isolating Y2O3:5 %Tb3+ luminescence center from CoFe2O4 magnetic nanofibers. Furthermore, the luminescent intensity and color of the coaxial nanofibers can be tuned via adjusting the concentrations of rare earth ions. The bifunctional magnetic-luminescent CoFe2O4@Y2O3:5 %Tb3+ coaxial nanofibers have potential applications in biomedical area, such as drug-delivery systems, cell labeling and separation, enhancement for magnetic resonance imaging, and subsequent optical identification. More importantly, the design conception and construction technology are of universal significance to fabricate other bifunctional coaxial nanofibers.

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (NSFC 50972020, 51072026), Specialized Research Fund for the Doctoral Program of Higher Education (20102216110002, 20112216120003), the Science and Technology Development Planning Project of Jilin Province (Grant Nos. 20130101001JC, 20070402), the Science and Technology Research Project of the Education Department of Jilin Province during the eleventh five-year plan period (Under Grant No. 2010JYT01).

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Authors and Affiliations

  1. Key Laboratory of Applied Chemistry and Nanotechnology, Universities of Jilin Province, Changchun University of Science and Technology, Changchun, 130022, China

    Fei Bi, Xiangting Dong, Jinxian Wang & Guixia Liu

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  1. Fei Bi
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  2. Xiangting Dong
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  3. Jinxian Wang
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  4. Guixia Liu
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Correspondence to Xiangting Dong.

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Bi, F., Dong, X., Wang, J. et al. Coaxial nanofibers to help achieve tunable and enhanced simultaneous magnetic-luminescent bifunctionality. J Mater Sci 50, 1679–1687 (2015). https://doi.org/10.1007/s10853-014-8729-7

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  • DOI: https://doi.org/10.1007/s10853-014-8729-7

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