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. 2021 Sep 27;9:744657. doi: 10.3389/fbioe.2021.744657

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Copyright © 2021 Xie, Liu, Chen, He, Zhang and Chen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) The chemical structure of PEG^5k-CA₈ G3 lysine dendrimer (Xiao et al., 2009). (B) Schematic representation of the disulfide cross-linked micelles formed by the oxidization of thiolated PEG^5k-Cys₄-L₈-CA₈ after self-assemble (Li et al., 2011). Abbreviation: PEG, polyethylene glycol; CA, cholic acid; Cys, cysteine; L, lysine.