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Related Experiment Video

Updated: Mar 30, 2026

Preparation of Multifunctional Silk-Based Microcapsules Loaded with DNA Plasmids Encoding RNA Aptamers and Riboswitches
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Encapsulation of Volatile Compounds in Silk Microparticles.

Roberto Elia1, Jin Guo1, Stephanie Budijono2

  • 1Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155.

Journal of Coatings Technology and Research
|November 17, 2015
PubMed
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Researchers developed natural silk protein microparticles to encapsulate fragrant oils. These biocompatible particles offer controlled release for applications in cosmetics and fragrances.

Area of Science:

  • Biomaterials Science
  • Materials Chemistry
  • Food Science

Background:

  • Microencapsulation is crucial for stabilizing and delivering active compounds like fragrant oils in various industries.
  • Current methods often involve chemical agents or harsh conditions, limiting applications for natural products.

Purpose of the Study:

  • To develop an all-natural, biocompatible microparticle system for encapsulating fragrant oils.
  • To utilize silk protein and ambient processing for creating a sustainable encapsulation matrix.
  • To control the release profile of encapsulated oils through tailored coatings.

Main Methods:

  • Fabrication of silk protein microparticles using polyvinyl alcohol-silk emulsions under ambient conditions.
  • Loading of fragrant oils via direct immersion into the silk microparticles.
Keywords:
coatingscontrolled releaseemulsionmicroencapsulationsilk fibroinstabilization

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  • Coating of oil-loaded microparticles with alternating layers of silk and polyethylene oxide.
  • Characterization of particle morphology, size, oil loading, release rates, and silk-oil interactions using thermal analysis.

    • Main Results:

    • Successfully created all-natural, biocompatible silk protein microparticles capable of encapsulating fragrant oils.
    • Demonstrated that silk coatings can be tuned to modify oil retention and release rates.
    • Characterized the physical and chemical properties of the silk-oil microparticles and their coatings.

    Conclusions:

    • Silk protein microparticles provide a viable, natural matrix for fragrant oil encapsulation.
    • The developed system allows for controlled adsorption and release of oils.
    • Potential applications include cosmetics, fragrances, and other industries requiring controlled delivery of oils.