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a) Schematic presentation of controlled insulin release from polymeric nanogel triggered by the presence of glucose. Reproduced with permission.[ 208 ] Copyright 2015, Royal Society of Chemistry. b) Poly‐N‐isopropyl acrylamide‐based nanogel as double‐stimuli‐responsive (temperature and pH) drug carrier. Reproduced under the terms of a Creative Commons Attribution 4.0 International License.[ 209 ] Copyright 2019, The Authors. Published by Springer Nature.
