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Preparation and Characterization of SDF-1α-Chitosan-Dextran Sulfate Nanoparticles
Published on: January 22, 2015
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Chitosan-pectin hybrid nanoparticles prepared by coating and blending techniques
A Rampino1, M Borgogna1, B Bellich2
1Dept. of Life Sciences, University of Trieste, Via Giorgieri 5, 34127 Trieste, Italy.
Summary
Chitosan nanoparticles combined with pectins were prepared using coating and blending methods. Results show pectin type and ratio influence nanoparticle size and charge, with potential for protein loading and confirmed biocompatibility.
Area of Science:
- Materials Science
- Biotechnology
- Polymer Chemistry
Background:
- Chitosan nanoparticles (NPs) are promising drug delivery vehicles.
- Pectins, as mucoadhesive biopolymers, can enhance NP properties.
- Understanding chitosan-pectin interactions is crucial for optimizing NP formulation.
Purpose of the Study:
- To investigate the preparation of chitosan nanoparticles combined with apple and citrus pectins.
- To compare coating and blending techniques for chitosan-pectin NP fabrication.
- To evaluate the effect of pectin type, ratio, and protein loading on NP characteristics.
Main Methods:
- Chitosan nanoparticle preparation via coating and blending with pectins (apple, citrus) and tripolyphosphate cross-linker.
- Particle size and zeta potential measurements.
- Fourier-transform infrared (FT-IR) and differential scanning calorimetry (DSC) for characterization.
- Chorioallantoic membrane assay for biocompatibility assessment.
Main Results:
- Coated NP size increased with pectin content, ranging from 200-260nm (citrus pectin) to 330-450nm (apple pectin).
- Optimal mucoadhesion indicated by a minimum Z-potential of -35mV at a 4:1 pectin:NP ratio.
- Blended NP size depended on chitosan, pectin, and tripolyphosphate ratios.
- Protein loading altered electrostatic interactions; FT-IR and DSC confirmed biopolymer interactions.
- Chorioallantoic membrane assay confirmed material biocompatibility.
Conclusions:
- Chitosan-pectin nanoparticle characteristics are tunable by pectin type, ratio, and preparation method.
- These NPs demonstrate potential for controlled delivery, especially with protein loading.
- The developed chitosan-pectin nanoparticles are biocompatible and safe for potential applications.
