Shear-Thinning and Designable Responsive Supramolecular DNA Hydrogels Based on Chemically Branched DNA
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Yang, Bo
Zhao, Zhihan
Pan, Yufan
Xie, Jiayin
Zhou, Bini
Li, Yujie
Dong, Yuanchen
Liu, Dongsheng
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Abstract
A novel supramolecular DNA hydrogel system was designed based on a directly synthesized chemically branched DNA. For the hydrogel formation, a self-dimer DNA with two sticky ends was designed as the linker to induce the gelation of B-Y. By programing the linker sequence, thermal and metal-ion responsiveness could be introduced into this hydrogel system. This supramolecular DNA hydrogel shows shear-thinning, designable responsiveness, and good biocompatibility, which will simplify the hydrogel composition and preparation process of the supramolecular DNA hydrogel and accelerate its biomedical applications.
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ACS Applied Materials and Interfaces
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