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. 2022 Feb 1;14:402–415. doi: 10.1016/j.bioactmat.2022.01.028

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© 2022 The Authors

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig. 1 — Preparation and characterization of the VP-loaded TGMS hydrogel. (a) Schematic illustration of VP-TGMS hydrogel self-assembly and enzyme-responsive VP release for treating CVDs. (b) Scanning electron microscopy (SEM) of the Blank-TGMS and VP-TGMS hydrogels. Scale bars: 10 μm. (c) Photographs showing the injectable behavior of the Blank-TGMS and VP-TGMS hydrogels. (d) Strain-dependent oscillatory measurements of the VP-TGMS hydrogel. (e) Step–strain measurements of the VP-TGMS hydrogel by rheology analysis. (f) Swelling ratio of the VP-TGMS hydrogel in PBS at determined time points.