Polyelectrolyte capsules for controlled binding/release of fluorescent probe

Nanocapsules containing pyrene, a fluorescent probe, are formed on micelles of a cationic surfactant by layer-by-layer deposition of oppositely charged polyelectrolytes (polyacrylic acid/ polyethyleneimine). Approaches, which allow to evaluate the release time of pyrene from the capsules are develop...

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Bibliographic Details
Published in:Russian chemical bulletin 2016-03, Vol.65 (3), p.675-679
Main Authors: Ibragimova, A. R., Mirgorodskaya, A. B., Zakharova, L. Ya, Konovalov, A. I.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Deactivation
Fluorescent indicators
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Inorganic Chemistry
Micelles
Organic Chemistry
Polyacrylic acid
Polyelectrolytes
Polyethyleneimine
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Summary:Nanocapsules containing pyrene, a fluorescent probe, are formed on micelles of a cationic surfactant by layer-by-layer deposition of oppositely charged polyelectrolytes (polyacrylic acid/ polyethyleneimine). Approaches, which allow to evaluate the release time of pyrene from the capsules are developed. The synthesized capsules make it possible to slow down the deactivation process of the excited pyrene molecule by almost an order of magnitude by adding a quenching compound to the bulk medium and through that, prolong its operation as fluorescent probe.
ISSN:1066-5285
1573-9171
DOI:10.1007/s11172-016-1354-7