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. 2014 Jun 19;12:23. doi: 10.1186/1477-3155-12-23

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Copyright © 2014 Ma et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. 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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Cumulative release profile of siRNA from chitosan hydrogel/siRNA. The formulated hydrogel was degraded either in PBS alone (marked as PBS) or PBS contained lysozyme (marked as LYS). Fluorescence intensity was measured for samples collected from various time points and background level from blank well was subtracted. The accumulative release profiles were calculated based on concentrations obtained. Data was presented as mean ± SD (n = 3).