Dissipative Particle Dynamics Study on Aggregation of MPEG-PAE-PLA Block Polymer Micelles Loading Doxorubicine

Authors

  • Chufen Yang,

    1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
    2. Faculty of Chemical Engineering & Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
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  • Yao Sun,

    1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
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  • Lijuan Zhang

    Corresponding author
    1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
    • School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China, Tel.: 0086-020-87112046; Fax: 0086-020-87112046
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Abstract

To guide the molecular design of the pH-sensitive triblock amphiphilic polymer MPEG-PAE-PLA and the formula design of its doxorubicine (DOX)-loaded micelles, dissipative particle dynamics (DPD) simulations are employed to investigate the aggregation behaviors of the DOX-loaded micelles. The simulation results showed that the aggregate morphologies of micelles and DOX distribution are influenced by degree of polymerization of blocks, and the proposed structure of polymer is MPEG44-PAE3-PLA4. With different contents of polymer or DOX, different aggregate morphologies of the micelles, like microsphere, spindle/column, reticulation or lamella are observed. To prepare the micro-spherical DOX-loaded micelles, the polymer content is proposed as 10%–15%, and the DOX content less than 10%.

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