Studies on the drug loading and release profiles of degradable chitosan-based multilayer films for anticancer treatment

Hyeongdeok Sun, Daheui Choi, Jiwoong Heo, Se Yong Jung, Jinkee Hong

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This study demonstrates the possibility of developing a rapidly degradable chitosan-based multilayer film for controlled drug release. The chitosan (CHI)-based multilayer nanofilms were prepared with three different types of anions, hyaluronic acid (HA), alginic acid (ALG) and tannic acid (TA). Taking advantage of the Layer-by-Layer (LBL) assembly, each multilayer film has different morphology, porosity and thickness depending on their ionic density, molecular structure and the polymer functionality of the building blocks. We loaded drug models such as doxorubicin hydrochloride (DOX), fluorescein isothiocyanate (FITC) and ovalbumin (Ova) into multilayer films and analyzed the drug loading and release profiles in phosphate-buffered saline (PBS) buffer with the same osmolarity and temperature as the human body. Despite the rapid degradation of the multilayer film in a high pH and salt solution, the drug release profile can be controlled by increasing the functional group density, which results in interaction with the drug. In particular, the abundant carboxylate groups in the CHI/HA film increased the loading amount of DOX and decreased rapid drug release. The TA interaction with DOX via electrostatic interaction, hydrogen bonding and hydrophobic interaction showed a sustained drug release profile. These results serve as principles for fabricating a tailored multilayer film for drug delivery application.

Original languageEnglish
Article number593
JournalCancers
Volume12
Issue number3
DOIs
Publication statusPublished - 2020 Mar

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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