Nanoencapsulation

Nanoencapsulation entraps an active ingredient within a protective shell or matrix, creating a particle size or component (shell or heterogenous phase) that is less than 100 nm or 1 µm.

Southwest Research Institute (SwRI) uses multiple nanoencapsulation techniques to produce nanosized particles and capsules to address the performance needs of many applications.

Techniques & Capabilities

SwRI staff are experienced with a wide variety of nanoencapsulation techniques, including:

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An image showing less than 200 nm nanocapsules

<200 nm nanoparticles

  • Micelles
  • Solid lipid nanoparticles (SLN)
  • Lipid nanoparticle systems (LNP)
  • Liposomes, colloidosomes & polymersomes
  • Phase inversion/precipitation
  • Solvent evaporation
  • Polyelectrolyte complexes
  • Layer-by-layer (LBL) deposition
  • Controlled precipitation
  • Surfactant-free particle formation
  • Templating/absorption – clays, zeolites & porous templates
  • Molecular encapsulation/complexation (cyclodextrins)
  • Top-down & bottom-up preparation techniques

For additional information, please contact James Oxley at +1 210 522 2913 and Joseph Persyn at +1 210 522 2691 or visit Microencapsulation Techniques.

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