3 years ago

Polarity Conversion of Conjugated Polymer for Lysosome Escaping

Polarity Conversion of Conjugated Polymer for Lysosome Escaping
Fengting Lv, Lingyun Zhou, Libing Liu, Shu Wang
Polymers are mostly trapped in lysosomes when they enter cells and are then expelled, otherwise they were designed to be degradable to small molecules or to sabotage lysosomes. Therefore, they have reached the limit of the unique functionalities as a whole. Different from other escaping strategies, we introduced the polarity exchanging approach to rigid-backboned conjugated polymer for controlled penetrating through endosome or lysosome membranes. With the aid of pH-sensitive cleavage of water-soluble side chain, the rigid conjugated polymer turns highly hydrophobic after it is internalized into lysosomes and then accomplishes escaping. Thus, polarity exchange of CPs could become a new strategy for their application on chemotherapeutics.

Publisher URL: http://dx.doi.org/10.1021/acsami.7b10105

DOI: 10.1021/acsami.7b10105

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