fig3
From: Biomedical DNA hydrogels
![Biomedical DNA hydrogels](https://image.oaes.cc/bf1be2f6-7e96-4bf7-9e72-52576a2cc288/4610.fig.3.jpg)
Figure 3. Drug delivery applications of (A) DNA hydrogels and (B) patterned hydrogel films. (A) Reprinted with permission from Ref.[48]. Copyright 2017, Royal Society of Chemistry. (B) Reprinted with permission from Ref.[52]. Copyright 2018, American Chemical Society. Biosensing applications of (C) bioimprinted aptamer hydrogels and (D) flexible electrochemical sensors. (C) Reprinted with permission from Ref.[61]. Copyright 2013, American Chemical Society. (D) Reprinted with permission from Ref.[67]. Copyright 2018, Wiley-VCH.