Lipid Nanoparticles: Formulation, Production Methods and Characterization Protocols

Area of Science:

• Nanotechnology
• Materials Science
• Food Science

Background:

• Lipid nanoparticles (LNs) are advanced delivery systems for lipid-soluble bioactive compounds.
• Solid Lipid Nanoparticles (SLNs) and Nanostructured Lipid Carriers (NLCs) show promise for bioactive compound encapsulation.
• Optimal selection of lipid matrices and emulsifiers is critical for LN efficacy.

Purpose of the Study:

• To review the chemical, physical, and structural characteristics of lipids used in LN production over the last 15 years.
• To analyze LN production methods and characterization techniques.
• To identify critical factors for producing stable LNs with high encapsulation and delivery efficiency for food systems.

Main Methods:

• Comprehensive literature review of studies published in the last 15 years.
• Analysis of lipid matrices, emulsifiers, and bioactive compounds in LN formulations.
• Discussion of key characterization techniques including particle size, zeta potential, crystallinity, thermal behavior, morphology, entrapment efficiency, load capacity, and physical stability.

Main Results:

• Detailed examination of lipid properties relevant to LN formulation.
• In-depth analysis of various LN production techniques.
• Discussion of critical parameters influencing LN stability and performance.

Conclusions:

• Careful selection of lipid matrices and emulsifiers is essential for successful LN development.
• Understanding production methods and characterization is key to optimizing LN performance.
• Stable LNs with efficient bioactive compound delivery have significant potential in food applications.