Artificial light-harvesting nanoparticles based on a tripodal fluorescence sensor mediated by multiple luminescence mechanisms

Abstract

It is highly desirable to precisely control the luminescence properties of organic molecules through the combination of multiple fluorescence mechanisms. In this work, we designed and synthesized a tripodal sensor...

Construction of a supramolecular light-harvesting system based on pillar[5]arene-mediated nanoparticles in water

“…Moreover, the light-harvesting systems found in chloroplasts are intricate supramolecular organizations of chlorophyll and protein molecules. 4 Taking cues from nature, numerous artificial light-harvesting systems (ALHS) assembled by non-covalent interactions have emerged in recent years for different applications, 5–10 such as photocatalysis, 11–18 tunable luminescent materials, 19–30 chemical sensing, 31–33 bioimaging/therapy, 34–36 temperature sensing, 37–41 information encryption 42–44 and latent fingerprint imaging. 45,46 There are three key conditions to achieve efficient Förster resonance energy transfer (FRET) from an energy donor (D) to an acceptor (A): firstly, a substantial overlap between the absorption spectrum of the acceptor and the emission spectrum of the donor is a prerequisite; secondly, the donor must be densely packed while circumventing aggregation-induced fluorescence quenching (ACQ); thirdly, maintaining a high donor-to-acceptor ratio (D/A > 200) ensures that multiple donors are associated with a single acceptor, optimizing energy transfer efficiency.…”