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Core-shell poly(d,l-lactide-co-glycolide)/poly(ethyl 2-cyanoacrylate) microparticles with doxorubicin to reduce initial burst release

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Abstract

Monodispersed microparticles with a poly(d,l-lactide-co-glycolide) (PLGA) core and a poly(ethyl 2-cyanoacrylate) (PE2CA) shell were prepared by Shirasu porous glass (SPG) membrane emulsification to reduce the initial burst release of doxorubicin (DOX). Solution mixtures with different weight ratios of PLGA polymer and E2CA monomer were permeated under pressure through an SPG membrane with 1.9 ώm pore size into a continuous water phase with sodium lauryl sulfate as a surfactant. Core-shell structured microparticles were formed by the mechanism of anionic interfacial polymerization of E2CA and precipitation of both polymers. The average diameter of the resulting microparticles with various PLGA:E2CA ratios ranged from 1.42 to 2.73 ώm. The morphology and core-shell structure of the microparticles were observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The DOX release profiles revealed that the microparticles with an equivalent PLGA:E2CA weight ratio of 1:1 exhibited the optimal condition to reduce the initial burst of DOX. The initial release rate of DOX was dependent on the PLGA:E2CA ratio, and was minimized at a 1:1 ratio.

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Author notes

  1. Jung Hyun Kim

    Present address: Nanosphere Process & Technology Laboratory, Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 120-749, Korea

Authors and Affiliations

  1. Nanosphere Process & Technology Laboratory, Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 120-749, Korea

    Sang-Hyuk Lee & Hyon-Ho Baek

  2. Department of Biomedical Engineering, Washington University in St. Louis, One Brookings Drive, 63130-4899, St. Louis, MO

    Sung-Wook Choi

Authors
  1. Sang-Hyuk Lee
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  2. Hyon-Ho Baek
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  3. Jung Hyun Kim
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  4. Sung-Wook Choi
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Lee, SH., Baek, HH., Kim, J.H. et al. Core-shell poly(d,l-lactide-co-glycolide)/poly(ethyl 2-cyanoacrylate) microparticles with doxorubicin to reduce initial burst release. Macromol. Res. 17, 1010–1014 (2009). https://doi.org/10.1007/BF03218649

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  • DOI: https://doi.org/10.1007/BF03218649

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