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. 2018 Sep 21;25(1):1740–1745. doi: 10.1080/10717544.2018.1510065

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© 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 5. — Analysis of gene transfection efficiency in MDA-MB-231 cells by combined PEI. The adherent cells are transfected by negative control, 0.5 μg 25 kDa PEI +1 μg pGFP, 50 μg 1.8 kDa PEI +1 μg pGFP, 0.5 μg 25 kDa PEI +1 μg pGFP +50 μg 1.8 kDa PEI, 1 μg 25 kDa PEI +1 μg pGFP and 1 μg 25 kDa PEI +1 μg pGFP +50 μg 1.8 kDa PEI. Flow cytometry is utilized to quantify the corresponding efficiency. (mean ± SD, n = 3, *p < .05 versus control, 0.5 μg 25 kDa PEI and 50 μg 1.8 kDa PEI groups, #p < .05 versus control, 1 μg 25 kDa PEI and 50 μg 1.8 kDa PEI groups).