Transitioning Room-Temperature Phosphorescence from Solid States to Aqueous Phases via a Cyclic Peptide-Based Supramolecular Scaffold.

Autor: Feng R; Southern University of Science and Technology, Shenzhen Grubbs Institute, CHINA., Yan X; Southern University of Science and Technology, Shenzhen Grubbs Institute, CHINA., Sang Y; Southern University of Science and Technology, Shenzhen Grubbs Institute, CHINA., Liu X; Southern University of Science and Technology, Department of Biomedical Engineering, CHINA., Luo Z; Southern University of Science and Technology, Department of Biomedical Engineering, CHINA., Xie Z; Chinese Academy of Sciences, Institute of High Energy Physics, CHINA., Ke Y; Chinese Academy of Sciences, Institute of High Energy Physics, CHINA., Song Q; Southern University of Science and Technology, Shenzhen Grubbs Institure, 1088 Xueyuan Avenue, Shenzhen, CHINA.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2024 Nov 21, pp. e202421729. Date of Electronic Publication: 2024 Nov 21.
DOI: 10.1002/anie.202421729
Abstrakt: Aqueous room-temperature phosphorescence (RTP) materials have garnered considerable attention for their significant potential across various applications such as bioimaging, sensing, and encryption. However, establishing a universally applicable method for achieving aqueous RTP remains a substantial challenge. Herein, we present a versatile supramolecular strategy to transition RTP from solid states to aqueous phases. By leveraging a cyclic peptide-based supramolecular scaffold, we have developed a noncovalent approach to molecularly disperse diverse organic phosphors within its rigid hydrophobic microdomain in water, yielding a series of aqueous RTP materials. Moreover, high-performance supramolecular phosphorescence resonance energy transfer (PRET) systems have been constructed. Through the facile co-assembly of a fluorescent acceptor with the existing RTP system, these PRET systems exhibit high energy transfer efficiencies (>80%), red-shifted afterglow emission (520-790 nm), ultralarge Stokes shifts (up to 450 nm), and improved photoluminescence quantum yields (6.1-30.7%). This study not only provides a general strategy for constructing aqueous RTP materials from existing phosphors, but also facilitates the creation of PRET systems featuring color-tunable afterglow emission.
(© 2024 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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