Magnetic microcapsules with low permeable polypyrrole skin layer

Daria V. Andreeva, Dmitry A. Gorin, Dmitry G. Shchukin, Gleb B. Sukhorukov

Research output: Contribution to journalArticlepeer-review

73 Citations (Scopus)


The paper describes a perspective approach to significantly decrease permeability of polyelectrolyte multi-layered capsules and, therefore, to make them more efficient for encapsulation of small molecule species. The polyelectrolyte shell modification by a dense polymer (polypyrrole) provides the capsule shell with water-resistant and sufficient barrier properties. However, high brittleness of polypyrrole coatings demands more gentle capsule processing conditions. Magnetite iron oxide nanoparticles were used as a shell constituent to provide the capsules with magnetic properties and, therefore, to propose a mild technological protocol for capsule treating.

Original languageEnglish
Pages (from-to)931-936
Number of pages6
JournalMacromolecular Rapid Communications
Issue number12
Publication statusPublished - 24 Jun 2006
Externally publishedYes


  • Coatings
  • Microencapsulation
  • Nanoparticles
  • Polyelectrolytes
  • Polypyrroles


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