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Preparation of multifunctional polymeric micelles for antiviral treatment

Macromolecular Research, ISSN: 1598-5032, Vol: 18, Issue: 8, Page: 747-752
2010
  • 13
    Citations
  • 0
    Usage
  • 22
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    13
    • Citation Indexes
      13
  • Captures
    22

Article Description

In this study, a poly(L-lactic acid)-Z-b-poly(ethylene glycol) (PLLA-b-PEG) diblock copolymer modified with a sialic acid derivative (methyl-b-neuraminic acid: mNA) was prepared for the development and application of a therapeutic nanosystem with multifunctionality. The terminal carboxyl group of PEG was coupled with mNA via N,N'-dicyclohexyl carbodiimide (DCC)-and N-hydroxysuccinimide (NHS)-mediated amide formation. Polymeric micelles were formed using the diafilteration method at pH 7.4, which resulted in a micelle self-assembly with the PLLA block at the core and PEG-mNA block on the shell. An anionic charge was formed on the surface of the micelle at physiological pH (∼pH 7.4) due to mNA. Amantadine (AMT), a model drug for antiviral treatment, was loaded into the micellar core. These micelles were expected to exhibit multiple therapeutic activity that originated from the antiviral activity of mNA on the shell and the sustained release of AMT from the micellar core.

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