Chitosan/Alginate Polyelectrolyte Magnetic Gel Nanoarchitectonics with Tunable Mechanical Properties for Magnetic Hyperthermia and Sustained Release of 5-Fluorouracil.

ABSTRACT: Chitosan-based hydrogels hold promise as drug delivery systems for cancer therapy, but the poor mechanical properties often limit the biological application, requiring chemical cross-linking to improve sustained drug release. Besides, the addition of stimulus-responsiveness to chitosan requires chemical modifications that can further affect the gel properties. To overcome these challenges, in this work, a novel chitosan/alginate polyelectrolyte magnetic gel with tunable mechanical properties is developed by pH-triggered self-assembly. The gels could be prepared by a slow/fast pH decrease and blended with magnetic nanoparticles. Manganese-doped ferrite nanoparticles (∼10 nm) with suitable magnetic properties (>70 Am²/kg) and high magnetic hyperthermia heating efficiency (ILP > 3

SUBMITTER: Veloso SRS 

PROVIDER: S-EPMC12616591 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature