Carbon nanotubes on polymeric microcapsules: Freestanding structures and point-wise laser openings

Alexey M. Yashchenok, Daniil N. Bratashov, Dmitry A. Gorin, Maria V. Lomova, Anton M. Pavlov, Andrei V. Sapelkin, Bong Sup Shim, Gennady B. Khomutov, Nicholas A. Kotov, Gleb B. Sukhorukov, Helmuth Möhwald, Andre G. Skirtach

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)


Single-wall carbon nanotubes modified by anionic polyelectrolyte molecules are embedded into the shells of microcapsules. Carbon nanotubes serve as rigid rods in a softer polymeric capsule, which forms a free-standing shell upon treatment with glutaraldehyde and subsequent drying. The embedded carbon nanotubes exhibit a broad absorption in the UV-near-infrared part of the spectrum, and that allows point-wise activation and opening of the microcapsules by laser. Raman signal analysis shows changes of carbon-nanotube-specific lines after high-power laser irradiation, which is characteristic of the formation of disordered carbonlike structures. These polyelectrolyte/carbon nanotube composite capsules represent a novel light-addressable type of microcontainers.

Original languageEnglish
Pages (from-to)3136-3142
Number of pages7
JournalAdvanced Functional Materials
Issue number18
Publication statusPublished - 23 Sep 2010
Externally publishedYes

ASJC Scopus subject areas

  • Biomaterials
  • Electrochemistry
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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