Practical preparation procedures for docetaxel-loaded nanoparticles using polylactic acid-co-glycolic acid

Area of Science:

• Biomaterials Science
• Nanotechnology
• Pharmaceutical Sciences

Background:

• Polylactic-co-glycolic acid (PLGA) nanoparticles are extensively researched for drug delivery due to their biodegradability and biocompatibility.
• This study aimed to develop an alternative preparation method for a commercial formulation using PLGA nanoparticles.
• Various fabrication parameters were optimized to enhance nanoparticle performance.

Purpose of the Study:

• To optimize the preparation of docetaxel-loaded PLGA nanoparticles.
• To compare the influence of different surfactants on drug encapsulation and release.
• To establish an alternative manufacturing process for a commercial drug formulation.

Main Methods:

• Docetaxel-loaded PLGA nanoparticles were synthesized using a single emulsion and solvent evaporation technique.
• Nanoparticle characterization involved scanning electron microscopy, dynamic light scattering, X-ray photoelectron spectroscopy, and high-performance liquid chromatography.
• Optimization of parameters included sonication time, power, drug loading, and surfactant type (polyvinyl alcohol, TPGS, Poloxamer 188).

Main Results:

• Optimal conditions (5-min sonication, 130 W power, 10 mg drug loading) yielded nanoparticles with over 90% encapsulation efficiency.
• In vitro release studies over 28 days showed differential drug release rates based on surfactant: Poloxamer 188 (40.07%) and TPGS (20.83%) exhibited slower release than polyvinyl alcohol (51.5%).
• X-ray photoelectron spectroscopy indicated the presence of residual drug on the nanoparticle surface.

Conclusions:

• The selection of surfactant is a critical factor in achieving controlled docetaxel release from PLGA nanoparticles.
• The developed nanoparticle formulation demonstrates potential for alternative preparation of commercial drug products.
• Further investigation into surface drug residuals may be warranted.