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Related Experiment Videos

Pharmaceutical particle engineering via spray drying.

Reinhard Vehring1

  • 1Particle Engineering, Pearl Therapeutics Inc, Redwood City, CA 94063, USA. rvehring@pearltherapeutics.com

Pharmaceutical Research
|November 28, 2007
PubMed
Summary
This summary is machine-generated.

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Recent advancements in spray drying enable precise particle engineering for improved drug stability and efficacy. This shift from empirical methods to an engineering approach allows for the design of functional microparticles with nanoscale substructures.

Area of Science:

  • Pharmaceutical Technology
  • Materials Science
  • Chemical Engineering

Background:

  • The last decade has seen a significant shift in particle engineering from empirical formulation to a more scientific, engineering-based approach.
  • A deeper understanding of particle formation mechanisms during spray drying has enabled the design of microparticles with nanoscale substructures.

Purpose of the Study:

  • To review recent developments in particle engineering using spray drying.
  • To provide a theoretical framework and concepts for particle design calculations.
  • To discuss pharmaceutical applications and underlying formation mechanisms.

Main Methods:

  • Review of experimental research on parameters influencing particle formation in spray drying.
  • Presentation of a classification system based on dimensionless numbers to predict particle morphology.

Related Experiment Videos

  • Discussion of various pharmaceutical applications and their design concepts.

    • Main Results:

    • Engineered microparticles with nanoscale substructures can be designed, enhancing the stability and efficacy of particulate dosage forms.
    • A classification system using dimensionless numbers aids in predicting particle morphology based on excipient properties and process parameters.
    • Spray drying facilitates the creation of low-density particles, composite particles, microencapsulation, and glass stabilization.

    Conclusions:

    • The engineering approach to spray drying has advanced particle design, leading to improved drug delivery systems.
    • Understanding particle formation mechanisms is crucial for optimizing spray drying processes for specific pharmaceutical applications.
    • Spray drying is a versatile technique for engineering particles with tailored functionalities for enhanced drug stability and efficacy.