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. 2017 Apr 4;8:182. doi: 10.3389/fphar.2017.00182

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Copyright © 2017 Lin, Chen, Zou, Wang, Wang, Li, Huang, Fu, Zhao, Lin, Xu and Yong.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Laser confocal images of U251 cells treated with different nanoformulations. (I) Blank, (II) free siRNA^FAM, (III) QD-PEI, (IV) QD-PEI-siRNA^FAM, and (V) Lipo-siRNA^FAM for 4 h. Cell nucleus is stained with DAPI (in blue), signals from QD are assigned in red and signals from FAM are assigned in green.