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(a) Examples of photoisomerizable groups for reversible light-responsive nanomaterials. Reproduced from [65], with permission from © The Royal Society of Chemistry 2017. (b) Synthesis of PNc and UV light drug release. (c) Synthesis and photoisomerization process of PNSC amphiphilic copolymer. Reproduced from [70], with permission from © 2020 Mena-Giraldo, Perez-Buitrago, Londono-Berrío, Ortiz-Trujillo, Hoyos-Palacio, and Orozco under CC BY 4.0.
