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. 2018 Aug 10;18:809. doi: 10.1186/s12885-018-4704-z

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 5 — Characterization of gossypolone-liposomes (Gn-lip). a TEM image (left), size distribution (upper right), and Zeta-potential (lower right) of blank liposomes. b TEM image (left), size distribution (upper right), and Zeta-potential (lower right) of Gn-loaded liposomes. c MTT-based cytotoxicity assay of free Gn, encapsulated Gn (Gn-lip), and the liposomes with the same concentrations of vehicle in Gn-lip using selected colon cancer cell lines (n = 3). Gn-lip and Gn showed similar cell viability profiles; while the liposomes alone did not show evident cytotoxicity within the investigated concentrations