Fig. 6
From: Developing hydrogels for gene therapy and tissue engineering
Hydrogel design for therapeutic gene release. A Nanomaterials loaded with genes and combined with hydrogels. (Reproduced with permission from Ref. [14], Copyright 2021, Elsevier). B Microspheres loaded with genes and combined with hydrogels. (Reproduced with permission from Ref. [177], Copyright 2017, Royal Society of Chemistry)