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. 2016 Oct 4;6:34695. doi: 10.1038/srep34695

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Copyright © 2016, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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(a,b) Optical images of uniformly distributed cells and cell aggregates in microcapsules (bar = 100 μm). (c) The mass transfer properties of microcapsules with different spatial distributions of cells. FITC was chosen as a model molecule because it is similar in size to the majority of autoinducers. FITC freely diffused in both types of microcapsules and achieved equilibrium in less than 15 minutes. Error bars represent the standard deviation of five replicates.