Abstract

In this study, some copper catalysts used for atom transfer radical polymerization (ATRP) were explored as efficient anti‐tumor agents. The aqueous solution of copper‐containing nanoparticles with uniform spheric morphology was in situ prepared through a copper‐catalyzed activator generated by electron transfer (AGET) ATRP in water. Nanoparticles were then directly injected into tumor‐bearing mice for antitumor chemotherapy. The copper nanodrugs had prolonged blood circulation time and enhanced accumulation at tumor sites, thus showing potent antitumor activity. This work provides a novel strategy for precise and large‐scale preparation of copper nanodrugs with high antitumor activity.

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