Efficient light harvesting in self-assembled organic luminescent nanotubes†‡ † Dedicated to Prof. Uday Maitra on the occasion of his 65th birthday.‡ Electronic supplementary information (ESI) available. See DOI: https://doi.org/10.1039/d3sc00375b

ABSTRACT: Luminescent organic nanotubes derived from the co-assembly of cyanostilbene (CS) based cationic supramolecular polymers and bio-polyanion heparin, a known anticoagulant, have been utilized as highly efficient FRET (fluorescence resonance energy transfer) donors in aqueous media resulting in amplified acceptor emission in the orange-red and near-infrared (NIR). Energy transfer efficiencies higher than 80% and an ultra-high antenna effect of 150 were achieved even at high donor/acceptor ratios (500 : 1–100 : 1) translating to emission quenching of several hundred donors by one acceptor. Utilizing the temperature responsiveness of the FRET process, these systems were employed as ratiometric emission thermometers in the temperature range 20–90 °C. Moreover, the energy transfer was very effecti

SUBMITTER: Bhaumik S 

PROVIDER: S-EPMC10132123 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature