کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
175410 | 458909 | 2016 | 9 صفحه PDF | دانلود رایگان |
• The complexation of stilbazolium dyes with water soluble carboxylato-pillar[5]arene was investigated.
• The first stilbazolium-based FRET system is described.
• FRET modulation of the ditopic stilbazolium dyad upon complexation with carboxylato-pillar[5]arene was observed.
• Intramolecular FRET modulation by supramolecular complexation was achieved.
In this paper we introduce a new approach towards the modulation of fluorescence resonance energy transfer (FRET). Two stilbazolium dyes (A, D) exhibiting opposite fluorescence responses upon complexation with anionic, water soluble carboxylato-pillar[5]arene (WP5) were covalently linked via click chemistry, yielding a FRET-capable ditopic indicator (G). The pseudorotaxane formation of G with WP5 in pure water induced fluorescence enhancement combined with the modulation of the FRET process due to the interaction of the macrocycle with the two fluorophore units.
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Journal: Dyes and Pigments - Volume 133, October 2016, Pages 415–423