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Carbon Nanotubes on Polymeric Microcapsules: Free‐Standing Structures and Point‐Wise Laser Openings
Author(s) -
Yashchenok Alexey M.,
Bratashov Daniil N.,
Gorin Dmitry A.,
Lomova Maria V.,
Pavlov Anton M.,
Sapelkin Andrei V.,
Shim Bong Sup,
Khomutov Gennady B.,
Kotov Nicholas A.,
Sukhorukov Gleb B.,
Möhwald Helmuth,
Skirtach Andre G.
Publication year - 2010
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201000846
Subject(s) - carbon nanotube , materials science , raman spectroscopy , nanotechnology , laser , nanotube , polyelectrolyte , carbon fibers , carbon nanobud , optical properties of carbon nanotubes , composite number , composite material , polymer , optics , physics
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.