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Updated: Jan 26, 2026
08:44
Assembly and Characterization of Polyelectrolyte Complex Micelles
Published on: March 2, 2020
11.5K
Quaternized curdlan/pectin polyelectrolyte complexes as biocompatible nanovehicles for curcumin.
Li-Xia Wu1, Ze-Ru Qiao1, Wu-Dan Cai1
1School of Food & Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
Food Chemistry
|April 23, 2019
Summary
Positively charged quaternized curdlan and negatively charged pectin formed nanoparticles for curcumin encapsulation. These curcumin-loaded nanoparticles showed enhanced solubility and antioxidant activity, with pH-dependent controlled release.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Drug Delivery
Background:
- Developing novel nanocarriers for enhanced drug delivery is crucial.
- Polyelectrolyte complex nanoparticles offer tunable properties for encapsulation.
Purpose of the Study:
- To fabricate polyelectrolyte complex nanoparticles (PEC NPs) using quaternized curdlan (Qcurd) and pectin.
- To encapsulate curcumin within these PEC NPs and evaluate its properties.
Main Methods:
- Fabrication of PEC NPs via electrostatic complexation between Qcurd and pectin.
- Encapsulation of curcumin using hydrogen bonding.
- Characterization of nanoparticle size, morphology, and dispersibility.
- Assessment of encapsulation efficiency, loading content, and in vitro release kinetics.
Main Results:
- Spherical nanoscale PEC NPs (average size 68 nm) with good aqueous dispersibility were successfully prepared.
- Curcumin encapsulation achieved ~82% efficiency and 13% loading content.
- Curcumin-loaded PEC NPs demonstrated pH-dependent release, enhanced water solubility, and superior antioxidant capacity compared to free curcumin.
Conclusions:
- Qcurd/pectin PEC NPs are effective carriers for curcumin delivery.
- The developed nanoparticles offer improved solubility and antioxidant properties for curcumin.
- The findings suggest potential applications in drug delivery and nutraceuticals.
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