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Related Experiment Videos

Preparation of solid lipid nanoparticles using a membrane contactor.

Catherine Charcosset1, Assma El-Harati, Hatem Fessi

  • 1Laboratoire d'Automatique et de Génie des Procédés, UMR CNRS 5007, UCBLyon 1, ESCPE-Lyon, 43 Bd du 11 Novembre 1918, 69 622 Villeurbanne Cedex, France. charcosset@lagep.univ-lyon1.fr

Journal of Controlled Release : Official Journal of the Controlled Release Society
|September 20, 2005
PubMed
Summary

A novel membrane contactor process efficiently produces solid lipid nanoparticles (SLN) with controlled sizes between 70-215 nm. This method offers advantages in ease of use, size control, and scalability for pharmaceutical and cosmetic applications.

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Area of Science:

  • Nanotechnology
  • Materials Science
  • Chemical Engineering

Background:

  • Solid lipid nanoparticles (SLN) emerged in the 1990s as alternatives to liposomes and emulsions for pharmaceutical and cosmetic uses.
  • Traditional SLN preparation methods face challenges in scalability and precise size control.

Purpose of the Study:

  • To investigate a new membrane contactor process for preparing solid lipid nanoparticles (SLN).
  • To evaluate the influence of key process parameters on SLN size and lipid phase flux.

Main Methods:

  • Utilized a membrane contactor system to form SLN by pressing a molten lipid phase through membrane pores into a circulating aqueous phase.
  • Investigated parameters including temperatures, cross-flow velocity, pressure, and membrane pore size.
  • Determined mean SLN size and lipid phase flux.

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Main Results:

  • The membrane contactor process successfully produced SLN with a mean size ranging from 70 to 215 nm.
  • Achieved a lipid phase flux between 0.15 and 0.35 m³/h m².
  • Demonstrated that SLN size can be controlled by adjusting process parameters.

Conclusions:

  • The membrane contactor offers a facile and scalable method for SLN preparation.
  • This process allows for precise control over SLN size through parameter optimization.
  • The technology shows significant potential for industrial application in cosmetic and pharmaceutical fields.