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. 2014 May 30;7(6):4297–4320. doi: 10.3390/ma7064297

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© 2014 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 license (http://creativecommons.org/licenses/by/3.0/).

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(a) Optical system developed by Kumeria et al. using RIfS-NAA platforms based on optical rugate filters to detect different levels of glucose (adapted from [2]). (b) Characteristic drug release profile of indomethacin from RIfS-NAA platforms under flow conditions (adapted from [62]).