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. 2017 Aug 19;8(8):255. doi: 10.3390/mi8080255

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Sheet materials prepared by microfluidics. (a) Mosaic hydrogels sheets, scale bars are all 500 μm; (b) Micronozzle device patterned hydrogel sheet. Reproduced with permission from [110,112].