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. 2017 Aug 23;12:504. doi: 10.1186/s11671-017-2256-9

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© The Author(s). 2017

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.

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Fig. 5 — In vitro release profiles of different curcumin formulations in PBS (pH 7.4). a Curcumin solution, in which curcumin was dissolved in PBS containing 0.1% Tween 80 (pH 7.4). b Cur-LPs with varied micro-environmental pH of 2.5, 5.0, and 7.4, respectively. The data is presented as mean ± sd (n = 3)