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The article analyzes and summarizes the latest achievements in the field of polymer systems for controlled release devices based on hydrogel materials. Possible directions of drug delivery are presented, including the use of granular hydrogels, which work on the principle of drug sorption − release in the body. The research on the synthesis regularities, structure, properties, and prospects for the use of granular hydrogels based on 2-hydroxyethyl methacrylate (HEMA) and its copolymers, in particular with polyvinylpyrrolidone (PVP), as systems for the controlled release of substances, in particular, drugs, is analyzed.
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Semenyuk et al. (2024) studied this question.
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