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Stimuli-triggered multilayer films in response to temperature and ionic strength changes for controlled favipiravir drug release.

Li XuLang HeYinzhao LiTingwei CaiJianhua ZhangZihan ChuXiaochen ShenRaymond CaiHaifeng ShiChunyin Zhu
Published in: Biomedical materials (Bristol, England) (2024)
The block copolymer micelles and natural biopolymers were utilized to form layer-by-layer (LbL) films via electrostatic interaction, which were able to effectively load and controllably release favipiravir, a potential drug for the treatment of coronavirus epidemic. The LbL films demonstrated reversible swelling/shrinking behavior along with the manipulation of temperature, which could also maintain the integrity in the structure and the morphology. Due to dehydration of environmentally responsive building blocks, the drug release rate from the films was decelerated by elevating environmental temperature and ionic strength. In addition, the pulsed release of favipiravir was observed from the multilayer films under the trigger of temperature, which ensured the precise control in the content of the therapeutic reagents at a desired time point. The nanoparticle-based LbL films could be used for on-demand in vitro release of chemotherapeutic reagents.
Keyphrases
  • drug release
  • room temperature
  • drug delivery
  • carbon nanotubes
  • ionic liquid
  • cancer therapy
  • sars cov
  • emergency department
  • climate change
  • human health
  • replacement therapy
  • smoking cessation
  • hyaluronic acid