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Solid Lipid Nanoparticles SLNs for Intracellular Targeting Applications
Published on: November 17, 2015
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Preparation and characterization of citral-loaded solid lipid nanoparticles
Huaixiang Tian1, Zhuoyan Lu1, Danfeng Li1
1School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China.
Food Chemistry
|January 14, 2018
Summary
Citral-loaded solid lipid nanoparticles (SLNs) enhance citral stability. Encapsulating citral within SLNs significantly improved its chemical stability in acidic conditions compared to controls.
Area of Science:
- Materials Science
- Nanotechnology
- Pharmaceutical Sciences
Background:
- Citral is a valuable compound with potential applications, but its chemical stability, particularly in acidic environments, poses a challenge.
- Solid lipid nanoparticles (SLNs) offer a promising delivery system for improving the stability and bioavailability of active compounds.
Purpose of the Study:
- To prepare and characterize citral-loaded solid lipid nanoparticles (citral-SLNs) using glyceryl monostearate (GMS) and a Tween 80/Span 80 surfactant mixture.
- To evaluate the chemical stability of citral encapsulated within SLNs under acidic conditions.
Main Methods:
- High-pressure homogenization was employed for the preparation of citral-SLNs.
- Characterization involved dynamic light scattering (DLS), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and thermal gravimetric analysis (TGA).
- Chemical stability was assessed using solid-phase microextraction gas chromatography (SPME-GC).
Main Results:
- Citral-SLNs were successfully prepared and characterized, revealing their microstructure and properties.
- After 12 days, 67.0% of citral remained encapsulated in the citral-SLN suspensions.
- In contrast, only 8.22% of citral remained in the control (unencapsulated) samples under similar conditions.
Conclusions:
- Encapsulation of citral within solid lipid nanoparticles significantly enhances its chemical stability.
- Citral-SLNs demonstrate improved stability in acidic surroundings, suggesting their potential for enhanced delivery and efficacy.
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