Pioglitazone-Loaded PLGA Nanoparticles: Towards the Most Reliable Synthesis Method

Area of Science:

• Nanotechnology
• Materials Science
• Pharmacology

Background:

• Pioglitazone (PGZ) shows benefits for atherosclerosis and type 2 diabetes.
• Controlled drug release is crucial for PGZ efficacy and safety.
• Poly(lactic-co-glycolic acid) nanoparticles (PLGA NPs) are promising for drug delivery but lack reliable synthesis.

Purpose of the Study:

• To optimize formulation parameters for producing PGZ-loaded PLGA NPs.
• To compare single emulsification-solvent evaporation and nanoprecipitation methods for NP synthesis.
• To identify the most reliable and reproducible method for PGZ-loaded PLGA NP production.

Main Methods:

• Rational optimization of critical formulation parameters for PGZ-loaded PLGA NPs.
• Evaluation of single emulsification-solvent evaporation and nanoprecipitation techniques.
• Analysis of nanoparticle characteristics: size, PDI, zeta potential, DL%, EE%, and stability.

Main Results:

• The nanoprecipitation method yielded higher entrapment efficiency and enhanced storage stability.
• Optimized PGZ-NPs exhibited suitable particle size and demonstrated very slow drug release in PBS.
• Nanoprecipitation was identified as the simplest, most rapid, and most reliable synthetic pathway.

Conclusions:

• Nanoprecipitation is a superior method for synthesizing PGZ-loaded PLGA NPs.
• The developed formulation ensures controlled and sustained drug release.
• This study provides a reliable synthetic strategy for advanced nanocarrier development.