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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 (https://creativecommons.org/licenses/by/4.0/).
(a) Dynamic swelling of nanogels at different pH levels. (b) Effect of gelatin wt%. (c) Effect of AA wt%. (d) Effect of MBA wt% on water absorbency (equilibrium swelling).