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Preparation and Characterization of Individual and Multi-drug Loaded Physically Entrapped Polymeric Micelles
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Continuous processing of paclitaxel polymeric micelles.

Anand Gupta1, Antonio P Costa1, Xiaoming Xu2

  • 1Department of Pharmaceutical Sciences, UConn, Storrs, CT 06269, United States.

International Journal of Pharmaceutics
|August 1, 2021
PubMed
Summary
This summary is machine-generated.

A novel continuous processing platform for polymeric micelles was developed, ensuring consistent quality attributes like size and polydispersity. This method produces paclitaxel-loaded micelles comparable to commercial standards.

Keywords:
Coaxial turbulent jetContinuous processingEthanol injectionPaclitaxel-loaded polymeric micellesPolymer molecular weightPolymeric micelles

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Area of Science:

  • Polymer chemistry and materials science
  • Nanotechnology and drug delivery
  • Chemical engineering and process development

Background:

  • Batch processing of polymeric micelles often leads to variations in critical quality attributes such as size and polydispersity.
  • Precise control over micelle characteristics is crucial for effective drug delivery applications.
  • Existing methods may lack the scalability and consistency required for pharmaceutical manufacturing.

Purpose of the Study:

  • To develop and validate a continuous processing platform for polymeric micelles.
  • To establish critical relationships between material attributes, process parameters, and micelle quality attributes.
  • To demonstrate the production of high-quality paclitaxel-loaded polymeric micelles equivalent to commercial products.

Main Methods:

  • Utilized coaxial turbulent jet in co-flow technology for continuous precipitation.
  • Employed multiple designs of experiments to investigate relationships between variables.
  • Adapted dynamic light scattering to determine critical micelle concentration and aggregation number.

Main Results:

  • Achieved precise control over particle size (15-70 nm) and low polydispersity in a continuous flow process.
  • Identified key relationships between block copolymer design, process parameters (concentration, flow rates, temperature), and micelle attributes.
  • Demonstrated the production of paclitaxel polymeric micelles equivalent to Genexol PM in quality and performance.

Conclusions:

  • The developed continuous platform eliminates batch-to-batch variation, offering superior control over polymeric micelle production.
  • Understanding the interplay between material and process parameters is key to optimizing micelle characteristics.
  • This continuous manufacturing approach holds significant promise for scalable and consistent production of nanomedicines.