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Review
. 2022 Apr 6;10(14):2338-2356.
doi: 10.1039/d1tb02323c.

Recent advances of zwitterionic-based topological polymers for biomedical applications

Miao Zhang  1 , Peng Yu  1 , Jing Xie  1 , Jianshu Li  1   2   3
Affiliations
Review

Recent advances of zwitterionic-based topological polymers for biomedical applications

Miao Zhang et al. J Mater Chem B. .

Abstract

Zwitterionic polymers, comprising hydrophilic anionic and cationic groups with the same total number of positive and negative charges on the same monomer residue, have received increasing attention due to their distinctive physico-chemical properties, including high hydration, good biocompatibility, good antifouling and good antibacterial properties, and thus show great potential as a novel type of biomedical material. Unique topological polymers with block, star, dendritic, comb, brush and cyclic structures not only meet the requirements of material structure accuracy but also provide a theoretical research template for the development of materials science. Topological structures can facilitate polymers with precise and adjustable structures, hydrodynamic size, lower viscosity, more active sites, less intermolecular entanglement, and increased colloidal stability, which can effectively achieve drug encapsulation, improve the drug-loading efficiency, achieve faster internalization, and reduce the in vitro cytotoxicity. Therefore, the synthesis of topological polymers with precise structures has become an inevitable requirement for the development of materials and their biomedical applications. The article mainly reviews the properties and application of zwitterionic polymers and their derivatives with different topological structures. In particular, the recent progress of these polymers in drug delivery, antitumor properties, biomedical diagnosis and antifouling coatings are described and introduced. Finally, the current problems in these applications are discussed, and the potential research prospects of zwitterionic-based topological polymers in current research are put forward.

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