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Synthesis of Cellulose Nanoparticles from Ionic Liquid Solutions for Biomedical Applications
Marta G Fuster1, Imane Moulefera1, M Noelia Muñoz1
1Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30071 Murcia, Spain.
Polymers
|January 21, 2023
Summary
Optimized cellulose nanoparticle synthesis using ionic liquids yields a biocompatible material. These nanoparticles show no cytotoxicity, making them promising for drug delivery applications.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Chemical Engineering
Background:
- Cellulose is a biocompatible biopolymer with potential for biomedical applications.
- Ionic liquids offer unique solvent properties for biopolymer processing.
- Developing efficient methods for cellulose nanoparticle synthesis is crucial for drug delivery.
Purpose of the Study:
- To optimize the synthesis of cellulose nanoparticles using the ionic liquid 1-ethyl-3-methylimidazolium acetate.
- To characterize the synthesized cellulose nanoparticles for biomedical suitability.
- To evaluate the cytotoxicity of the cellulose nanoparticles.
Main Methods:
- Optimization of synthesis conditions based on Dynamic Light Scattering (DLS) and Phase Analysis Light Scattering (PALS) for hydrodynamic diameter and polydispersity index.
- Characterization using Fourier Transform Infrared Spectroscopy (FTIR-ATR), Field Emission Scanning Electron Microscopy (FESEM), and Thermogravimetric Analysis (TGA/DTA).
- Cell viability assays performed on HeLa (cancer) and EA.hy926 (healthy) cell lines.
Main Results:
- Optimized synthesis produced cellulose nanoparticles with suitable characteristics for biomedical use.
- Characterization confirmed the structure and properties of the cellulose nanoparticles.
- Cell viability studies demonstrated no significant cytotoxicity in the tested concentration range.
Conclusions:
- The optimized method provides a promising route to biocompatible cellulose nanoparticles from ionic liquids.
- The synthesized nanoparticles are non-cytotoxic and suitable for further investigation in drug delivery.
- This work lays the foundation for future applications in targeted and controlled drug release systems.
