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Constructing Stiffness Tunable DNA Hydrogels Based on DNA Modules with Adjustable Rigidity
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DOI：10.1021/acs.nanolett.4c01870.png)
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Abstract
En 中文
DNA hydrogel represents a potent material for crafting biological scaffolds, but the toolbox to systematically regulate the mechanical property is still limited. Herein, we have provided a strategy to tune the stiffness of DNA hydrogel through manipulating the rigidity of DNA modules. By introducing building blocks with higher molecular rigidity and proper connecting fashion, DNA hydrogel stiffness could be systematically elevated. These hydrogels showed excellent dynamic properties and biocompatibility, thus exhibiting great potential in three-dimensional (3D) cell culture. This study has offered a systematic method to explore the structure-property relationship, which may contribute to the development of more intelligent and personalized biomedical platforms.
Keywords:
DNA supramolecular hydrogel
DNA nanotechnology
stiffness-tunable
self-assembly
3D cell culture