ATP responsive DNA nanogels grown on biocompatible branches for anticancer drug delivery.

Zhao, Meihui; Zhang, Yu; Yuan, Shirui; Xu, Xiang; Wu, Ziheng; Wu, Zhenghong; Qi, Xiaole · Soft Matter · 2019

basic_science · Level V

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Abstract

We developed biocompatible ATP responsive DNA nanogels, by grafting DNA strands on carboxymethyl chitosan polymer chains, and then hybridizing with ATP aptamers to form core-shell nanogels. The DNA duplex structure could embed DOX in the G-C sequences, and realize simultaneous sol-gel transition and DOX release when suffering enrich ATP in tumor cells.

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