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Chitosan-Zein Films Decorated with Green Synthesized Silver Nanoparticles Using Bergenia ciliata Extract
Ananda Bahadur Chand1,2, Moses Ashie3, Rabin Dahal3
1Central Department of Chemistry, Tribhuvan University, Kirtipur 44618, Nepal.
Molecules (Basel, Switzerland)
|June 13, 2025
Summary
This study created eco-friendly chitosan-zein films with silver nanoparticles using Bergenia ciliata extract. These nanocomposite films exhibit excellent antimicrobial properties, showing promise for therapeutic uses and active food packaging.
Area of Science:
- Materials Science
- Nanotechnology
- Biomaterials
Background:
- Chitosan and zein are biocompatible polymers with potential in various applications.
- Developing sustainable methods for creating advanced nanomaterials is crucial.
- Silver nanoparticles (AgNPs) possess significant antimicrobial properties.
Purpose of the Study:
- To fabricate chitosan-zein films incorporating silver nanoparticles (AgNPs) using a green synthesis approach.
- To characterize the structural, morphological, and thermal properties of the developed nanocomposite films.
- To evaluate the antimicrobial efficacy of the AgNP-decorated films.
Main Methods:
- Green synthesis of AgNPs using Bergenia ciliata extract.
- Fabrication of chitosan-zein films with embedded AgNPs.
- Characterization using FTIR, XPS, XRD, SEM, and TEM.
- Antimicrobial activity testing.
Main Results:
- Successfully synthesized AgNPs (~40 nm) using plant extract without external agents.
- Uniform distribution of AgNPs within the chitosan-zein matrix confirmed.
- Films exhibited enhanced thermal stability, durability, and significant antimicrobial activity.
- Characterization confirmed the successful formation and integration of AgNPs.
Conclusions:
- A sustainable and green pathway for developing multifunctional nanocomposite films was established.
- The AgNP-decorated chitosan-zein films demonstrate potential for therapeutic applications.
- These findings contribute to the advancement of bio-based materials for active food packaging and biomedical uses.
