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Exploring Functionalized Magnetic Hydrogel Polyvinyl Alcohol and Chitosan Electrospun Nanofibers
Mónica Guerra1, Fábio F F Garrudo2, Célia Faustino1,3,4
1Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
Gels (Basel, Switzerland)
|December 22, 2023
Summary
Researchers developed magnetized nanofiber systems using polyvinyl alcohol and chitosan loaded with lysozyme (Lys). These novel nanofibers show potential for biological applications, including targeted cancer treatments.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Drug Delivery
Background:
- Nanofibrous materials offer high surface area and reactivity, making them suitable for drug delivery and biomolecule targeting.
- Lysozyme (Lys) is an enzyme with potential therapeutic applications, but its delivery needs optimization.
Purpose of the Study:
- To develop magnetized nanofiber systems loaded with lysozyme (Lys) for enhanced biological applications.
- To functionalize nanofibers with magnetic nanoparticles (IONPs) and boronic acids for targeted delivery.
Main Methods:
- Electrospinning of polyvinyl alcohol (PVA) and PVA/chitosan (CS) nanofibers loaded with Lys.
- Crosslinking with phenylboronic acid (PBA) derivatives and functionalization with IONPs.
- Morphological analysis via SEM, biological activity assessment using Micrococcus lysodeikticus, and in vitro release studies.
Main Results:
- Successfully fabricated magnetized PVA and PVA/CS nanofibers loaded with Lys.
- Demonstrated biological activity of Lys-loaded nanofibers against Micrococcus lysodeikticus.
- Evaluated Lys adsorption, activity, and in vitro release under simulated cancer cell conditions.
- Assessed the viability of Caco-2 cancer cells upon exposure to the developed nanofiber systems.
Conclusions:
- Magnetized nanofiber systems incorporating lysozyme were successfully developed.
- The functionalized nanofibers show promise for controlled release and targeted delivery in biological applications.
- Further investigation is warranted for therapeutic applications, particularly in cancer treatment.

