Three–step cascaded artificial light–harvesting systems with tunable efficiency based on metallacycles

Zhang, Dengqing; Li, Man; Jiang, Bei; Liu, Senkun; Yang, Jie; Yang, Xiang; Ma, Ke; Yuan, Xiaojuan; Yi, Tao

doi:10.1016/j.jcis.2023.08.184

Cited by 10 publications

(4 citation statements)

References 65 publications

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“…(1) The current selection of energy acceptors is very narrow, and many examples use ESY and NiR as the first and secondary acceptor, however, in order to meet the needs of a wider range of applications, more matching acceptors need to be developed and found. (2) Most of the examples described in this perspective are two-step FRET systems, and there is only one example of a three-step FRET system 108 . The construction of a threestep FRET system is more challenging and is also one of the directions for future efforts.…”

Section: Discussionmentioning

confidence: 99%

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Multi-step FRET systems based on discrete supramolecular assemblies

Chen,

Xiao,

Monflier

et al. 2024

Commun Chem

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Fluorescence resonance energy transfer (FRET) from the excited state of the donor to the ground state of the acceptor is one of the most important fluorescence mechanisms and has wide applications in light-harvesting systems, light-mediated therapy, bioimaging, optoelectronic devices, and information security fields. The phenomenon of sequential energy transfer in natural photosynthetic systems provides great inspiration for scientists to make full use of light energy. In recent years, discrete supramolecular assemblies (DSAs) have been successively constructed to incorporate donor and multiple acceptors, and to achieve multi-step FRET between them. This perspective describes recent advances in the fabrication and application of DSAs with multi-step FRET. These DSAs are categorized based on the non-covalent scaffolds, such as amphiphilic nanoparticles, host-guest assemblies, metal-coordination scaffolds, and biomolecular scaffolds. This perspective will also outline opportunities and future challenges in this research area.

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Section: Discussionmentioning

confidence: 99%

“…In a follow-up work, they further developed a three-step FRET system based on metallacycles (Fig. 4e) 108 .…”

Section: Multi-step Fret Systems Constructed By Metalcoordination Sca...mentioning

confidence: 99%

Multi-step FRET systems based on discrete supramolecular assemblies

Chen,

Xiao,

Monflier

et al. 2024

Commun Chem

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“…This limitation hinders the ability to detect and optimize the assembly process through manipulation of the same sample . Förster resonance energy transfer (FRET), , a nonradiative energy transfer process through dipole–dipole interaction between donor and acceptor, has been established as an ideal method for real-time monitoring of the processes and dynamics associated with supramolecular self-assembly, − which has widespread applications in fields like fluorescent probes, , chemosensors, , imaging agents, − photodynamic therapy, , and artificial light-harvesting systems (LHSs). − For instance, Rebek et al successfully utilized FRET to characterize the dynamic features of supramolecular capsules on the basis of hydrogen bonds. − Yang presented the real-time monitoring of coordination-driven self-assembly dynamics through FRET. − Recently, we have constructed two efficient FRET systems on the basis of heterotopic bisnanohoops and double helicates for achieving multiple color-tunable emissions, including white light LED devices, respectively.…”

Section: Introductionmentioning

confidence: 99%

“… 53 Förster resonance energy transfer (FRET), 54 , 55 a nonradiative energy transfer process through dipole–dipole interaction between donor and acceptor, has been established as an ideal method for real-time monitoring of the processes and dynamics associated with supramolecular self-assembly, 56 − 62 which has widespread applications in fields like fluorescent probes, 63 , 64 chemosensors, 65 , 66 imaging agents, 67 − 69 photodynamic therapy, 70 , 71 and artificial light-harvesting systems (LHSs). 72 − 75 For instance, Rebek et al successfully utilized FRET to characterize the dynamic features of supramolecular capsules on the basis of hydrogen bonds. 56 − 58 Yang presented the real-time monitoring of coordination-driven self-assembly dynamics through FRET.…”

Section: Introductionmentioning

confidence: 99%

Monitoring Hierarchical Assembly of Ring-in-Ring and Russian Doll Complexes Based on Carbon Nanoring by Förster Resonance Energy Transfer

Guo,

Liu,

et al. 2024

JACS Au

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We presented the construction of the ring-in-ring and Russian doll complexes on the basis of triptycene-derived carbon nanoring (TP-[12]CPP), which not only acts as a host for pillar[5]arene (P5A) but also serves as an energy donor for building Forster resonance energy transfer (FRET) systems. We also demonstrated that their hierarchical assembly processes could be efficiently monitored in real time using FRET. NMR, UV−vis and fluorescence, and mass spectroscopy analyses confirmed the successful encapsulation of the guests P5A/P5A-An by TP-[12]CPP, facilitated by C−H•••π and •••π interactions, resulting in the formation of a distinct ring-in-ring complex with a binding constant of K a = 2.23 × 10 4 M −1 . The encapsulated P5A/P5A-An can further reverse its role to be a host for binding energy acceptors to form Russian doll complexes, as evidenced by the occurrence of FRET and mass spectroscopy analyses. The apparent binding constant of the Russian doll complexes was up to 3.6 × 10 4 M −1 , thereby suggesting an enhanced synergistic effect. Importantly, the Russian doll complexes exhibited both intriguing one-step and sequential FRET dependent on the subcomponent P5A/P5A-An during hierarchical assembly, reminiscent of the structure and energy transfer of the light-harvesting system presented in purple bacteria.

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Comprehensive Study of Artificial Light‐Harvesting Systems with a Multi‐Step Sequential Energy Transfer Mechanism

Wu,

Wang,

et al. 2024

Advanced Science

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Artificial light‐harvesting systems (LHSs) with a multi‐step sequential energy transfer mechanism significantly enhance light energy utilization. Nonetheless, most of these systems exhibit an overall energy transfer efficiency below 80%. Moreover, due to challenges in molecularly aligning multiple donor/acceptor chromophores, systems featuring ≥3‐step sequential energy transfer are rarely reported. Here, a series of artificial LHSs is introduced featuring up to 4‐step energy transfer mechanism, constructed using a cyclic peptide‐based supramolecular scaffold. These LHSs showed remarkably high energy transfer efficiencies (≥90%) and satisfactory fluorescence quantum yields (ranging from 17.6% to 58.4%). Furthermore, the structural robustness of the supramolecular scaffold enables a comprehensive study of these systems, elucidating the associated energy transfer pathways, and identifying additional energy transfer processes beyond the targeted sequential energy transfer. Overall, this comprehensive investigation not only enhances the understanding of these LHSs, but also underscores the versatility of cyclic peptide‐based supramolecular scaffolds in advancing energy harvesting technologies.

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Three–step cascaded artificial light–harvesting systems with tunable efficiency based on metallacycles

Cited by 10 publications

References 65 publications

Multi-step FRET systems based on discrete supramolecular assemblies

Multi-step FRET systems based on discrete supramolecular assemblies

Monitoring Hierarchical Assembly of Ring-in-Ring and Russian Doll Complexes Based on Carbon Nanoring by Förster Resonance Energy Transfer

Comprehensive Study of Artificial Light‐Harvesting Systems with a Multi‐Step Sequential Energy Transfer Mechanism

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