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Related Experiment Videos

Delivery Systems for Low Molecular Weight Payloads: Core/Shell Capsules with Composite Coacervate/Polyurea Membranes.

Gregory Dardelle1, Marlène Jacquemond1, Philipp Erni1

  • 1Firmenich SA, Materials Science Department, Corporate Research Division, 1217, Meyrin 2, Geneva, Switzerland.

Advanced Materials (Deerfield Beach, Fla.)
|April 4, 2017
PubMed
Summary

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Researchers developed novel core/shell capsules by combining biopolymers and interfacial polymerization. These capsules offer excellent chemical stability and strong adhesion, inspired by natural underwater glues.

Area of Science:

  • Materials Science
  • Biomaterials Engineering
  • Polymer Chemistry

Background:

  • Biological systems often utilize complex structures for adhesion and protection.
  • Natural underwater glues inspire the development of advanced adhesive materials.
  • Encapsulation technologies are crucial for protecting and delivering sensitive compounds.

Purpose of the Study:

  • To create novel core/shell capsules by integrating biopolymer phase separation and interfacial polymerization.
  • To combine the chemical stability of synthetic polymers with the adhesive properties of protein-based coacervates.
  • To develop a robust encapsulation system for volatile oil droplets.

Main Methods:

  • Formation of composite polyurea/coacervate core/shell capsules.
Keywords:
complex coacervatesencapsulationhybrid materialsinterfacial rheologymicrocapsules

Related Experiment Videos

  • Utilizing associative biopolymer phase separation and interfacial polymerization.
  • In situ synthesis of a polyurea membrane at the coacervate-oil interface.

    • Main Results:

    • Successfully formed composite capsules with distinct core/shell structures.
    • The polyurea layer demonstrated excellent permeability barrier properties against volatile molecules.
    • The coacervate component of the shell significantly enhanced substrate adhesion.

    Conclusions:

    • The developed composite capsules offer a promising platform for controlled release and adhesion applications.
    • This approach effectively merges synthetic polymer stability with biopolymer-inspired adhesion.
    • The findings provide insights into designing advanced functional materials for diverse applications.