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Parameter Optimization Of Injectable Polycaprolactone Microspheres Containing Curcumin Using Response Surface

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    Optimizing polycaprolactone formulations for drug delivery systems is key. Formulation variables significantly impact particle size and encapsulation efficiency, leading to improved drug delivery characteristics.

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    Area of Science:

    • Pharmaceutical Sciences
    • Materials Science
    • Biomedical Engineering

    Background:

    • Particulate drug delivery systems require specific physical characteristics for optimal pharmacokinetic performance.
    • Particle dimension, drug loading, encapsulation efficiency, and in vitro release kinetics are critical determinants of system efficacy.

    Purpose of the Study:

    • To investigate the influence of formulation variables on the physical characteristics of polycaprolactone nanoparticles.
    • To optimize formulation parameters for achieving small particle size and high encapsulation efficiency.

    Main Methods:

    • Systematic evaluation of formulation variables including polycaprolactone amount, stirring speed, and surfactant amount.
    • Analysis of the main and interaction effects of these variables on particle dimension, drug loading, encapsulation efficiency, and in vitro release.

    Main Results:

    • Polycaprolactone amount and stirring speed significantly affected particle characteristics and drug loading.
    • Surfactant amount did not show a significant impact on the evaluated parameters.
    • An optimized formulation was identified, yielding small particle sizes and high encapsulation efficiency.

    Conclusions:

    • Formulation parameters, particularly polycaprolactone concentration and stirring speed, are crucial for controlling nanoparticle properties.
    • The optimized formulation demonstrated successful validation, aligning experimental outcomes with theoretical predictions for enhanced drug delivery.