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Related Concept Videos

Radical Chain-Growth Polymerization: Overview01:10

Radical Chain-Growth Polymerization: Overview

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Chain-growth or addition polymerization is successive addition reactions of monomers with a polymer chain. In radical chain-growth polymerization, the reaction proceeds via a free-radical intermediate. The free radical is formed from radical initiators, which spontaneously generate free radicals by homolytic fission. Organic peroxides (such as dibenzoyl peroxide, as shown in Figure 1) or azo compounds are popular radical initiators. A low concentration ratio of radical initiator to monomer is...
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Radical Chain-Growth Polymerization: Mechanism01:09

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The radical chain-growth polymerization mechanism consists of three steps: initiation, propagation, and termination of polymerization. The polymerization initiates when a free radical generated from the radical initiator adds to the unsaturated bond in the monomer. The unpaired electron of the free radical and one π electron in the unsaturated bond creates a σ bond between the free radical and the monomer. As a result, the other π electron in the unsaturated bond converts this...
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Updated: Jun 30, 2025

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
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Copper Nanodrugs by Atom Transfer Radical Polymerization.

Peng Chen1, Ziyan Song1, Xuxia Yao2

  • 1MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.

Angewandte Chemie (International Ed. in English)
|March 15, 2024
PubMed
Summary

Copper nanoparticles, initially used for polymerization, show potent anti-tumor effects. This study demonstrates their effective use as copper nanodrugs in chemotherapy, targeting tumors with enhanced accumulation and prolonged circulation.

Keywords:
anti-tumoratom transfer radical polymerizationcopper complexminiemulsion polymerizationnanodrugs

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Oncology

Background:

  • Copper catalysts are crucial for atom transfer radical polymerization (ATRP).
  • Developing novel drug delivery systems for cancer treatment is a priority.
  • Nanoparticles offer unique properties for targeted therapies.

Purpose of the Study:

  • To explore copper catalysts used in ATRP as potential anti-tumor agents.
  • To develop a method for preparing copper-containing nanoparticles for chemotherapy.
  • To evaluate the anti-tumor efficacy of these novel copper nanodrugs.

Main Methods:

  • In situ preparation of copper-containing nanoparticles via copper-catalyzed activator generated by electron transfer (AGET) ATRP in water.
  • Characterization of nanoparticle morphology (uniform spheres).
  • Administration of nanoparticles to tumor-bearing mice for in vivo anti-tumor evaluation.

Main Results:

  • Copper nanoparticles exhibited uniform spherical morphology.
  • The nanodrugs demonstrated prolonged blood circulation time in vivo.
  • Enhanced accumulation of nanoparticles was observed at tumor sites.
  • Potent anti-tumor activity was achieved through chemotherapy.

Conclusions:

  • Copper catalysts from ATRP can be repurposed as effective anti-tumor agents.
  • A novel strategy for precise, large-scale preparation of copper nanodrugs was established.
  • The developed copper nanodrugs show promise for enhanced cancer chemotherapy.