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Hydrophobically-modified chitosan nanoliposomes for intestinal drug delivery

  • Mohammed Gulrez Zariwala
  • , Harshada Bendre
  • , Anatoliy Markiv
  • , Sebastien Farnaud
  • , Derek Renshaw
  • , Kevin M G Taylor
  • , Satyanarayana Somavarapu
    • University of Westminster
    • King's College London
    • University College London

    Research output: Contribution to journalArticlepeer-review

    166 Downloads (Pure)

    Abstract

    A novel chitosan derivative, O-palmitoyl chitosan (OPC) was synthesized from chitosan and palmitoyl chloride using methane-sulfonic acid as a solvent. The success of synthesis was confirmed by Fourier transform infra-red (FT-IR) spectroscopy and proton NMR spectroscopy (H-NMR). Liposomes encapsulating ferrous sulphate as a model hydrophilic drug for intestinal delivery were prepared with or without OPC inclusion (Lipo-Fe and OPC-Lipo-Fe). Entrapment of iron was significantly higher in OPC containing liposomes compared to controls. Quantitative iron absorption from the OPC liposomes was significantly higher (1.5-fold P< 0.05) than free ferrous sulphate controls. Qualitative uptake analysis by confocal imaging using coumarin-6 dye loaded liposomes also indicated higher cellular uptake and internalization of the OPC-containing liposomes. These findings suggest that addition of OPC during liposome preparation creates robust vesicles that have improved mucoadhesive and absorption enhancing properties. The chitosan derivative OPC therefore provides a novel alternative for formulation of delivery vehicles targeting intestinal absorption.
    Original languageEnglish
    Pages (from-to)5837-5848
    Number of pages12
    JournalInternational Journal of Nanomedicine
    Volume13
    DOIs
    Publication statusPublished - 27 Sept 2018

    Bibliographical note

    This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.

    Keywords

    • Liposomes
    • Ferrous sulphate
    • Caco-2
    • Gut delivery
    • Intestinal absorption

    ASJC Scopus subject areas

    • Pharmacology, Toxicology and Pharmaceutics(all)

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