Fig. 1
From: Stimuli-responsive DNA-based hydrogels for biosensing applications
Examples of pure DNA hydrogels. A Schematic diagram of branched Y-shaped monomers (YMA and YMB) and linker that hybridize with their “sticky end” segments (black lines) to form nanohydrogel. Reproduced with permission from Ref. [61]. B Schematic diagram of the operation of the catalytic RCA hydrogel. Reproduced with permission from Ref. [65]. C When removing water, the hydrogels act as liquid and adapt to different containers. When reintroducing water, solid-like metaproperties of hydrogels occur. Reproduced with permission from Ref. [8]