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Highly selective fluorescent chemosensor for Zn2+ derived from inorganic-organic hybrid magnetic core/shell Fe3O4@SiO2 nanoparticles

Yujiao Wang, Xiaohong Peng, Jinmin Shi, Xiaoliang Tang, Jie Jiang and Weisheng Liu*

Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China

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Nanoscale Research Letters 2012, 7:86  doi:10.1186/1556-276X-7-86

Published: 25 January 2012

Additional files

Additional file 1:

Characterization and properties of DTH-Fe3O4@SiO2. Figure S1, XRD patterns of Fe3O4 core; Figure S2, TGA curves of Fe3O4@SiO2 (a) and DTH-Fe3O4@SiO2 (b); Figure S3, selectivity of DTH-Fe3O4@SiO2 for Zn2+ in the presence of other metal ions in ethanol; and Table S1, the loading of DTH-APTES in the Fe3O4@SiO2 NPs as estimated by different methods.

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