Frontispiece: Supramolecular Assemblies with Aggregation‐Induced Emission Properties for Sensing and Detection

Dai, Dihua; Yang, Jie; Yang, Ying‐Wei

doi:10.1002/chem.202280862

Cited by 7 publications

(9 citation statements)

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“…Generally, AIEgens are not emissive in the solution because the free-rotation of phenyl groups deactivates the photoluminescence intensity, whereas such AIEgens can increase the photoluminescence intensity drastically in the solid state owing to the restriction of intramolecular motion. Thus, over the last two decades, many papers have been published based on the AIEgen containing materials for solar cells, [36][37][38] organic light emitting diodes (OLEDs), [39][40][41][42] sensing applications, [43][44][45][46][47] photocatalysis, [48] and biomedical fields. [49][50][51] On the contrary, very limited papers were published based on the AIEgen-decorated porphyrins for fluorescence bioimaging, photodynamic therapy (PDT), photocatalytic hydrogen F I G U R E 1 Structures of AIEgens attached to porphyrin macrocycle evolution (PHE), solid state photoluminescence, electrochemiluminescence (ECL), and self-assembled studies.…”

Section: Introductionmentioning

confidence: 99%

An overview on AIEgen‐decorated porphyrins: Current status and applications

2023

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One of the major obstacles of porphyrins is the aggregation-caused quenching (ACQ) of photoluminescence due to the strong intermolecular π-π interaction of the planar porphyrin core in the solid state. However, ACQ leads to the nonradiative deactivation of the photoexcited states which results in short-lived charge-separated states and thus low photoluminescence and singlet quantum yields. This phenomenon would limit the utilization of porphyrins in near-infrared fluorescent bioimaging, photodynamic therapy, photocatalytic hydrogen evolution, electrochemiluminescence, and chiroptical applications. Hence, to address the ACQ property of porphyrins and enhance the performance of the above applications, a limited number of AIEgen-decorated porphyrins have been designed, synthesized, and tested for their applications. It has been found that the introduction of AIEgens, such as tetraphenylethylene, diphenylacrylonitrile, (3,6-bis-(1-methyl-4-vinylpyridinium)-carbazole diiodide, and iridium motif into the porphyrin core, transformed the porphyrins from ACQ to aggregation-induced emission (AIE) in their solid state due to the reduced strong intermolecular π-π stacking of porphyrins. Consequently, such porphyrins containing AIE features are employed as potential candidates in the above-mentioned applications. In this review, we summarize the AIEgen-decorated porphyrins which have been published to date, and also discuss the benefits of converting porphyrins from ACQ to AIE for enhanced performance within each application. As far as we know, there is no review that summarizes the structures and applications of AIEgen-decorated porphyrins to date. Therefore, we presume that this review would be helpful to design more efficient AIEgen-decorated porphyrins for a wide range of applications in the future.

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Section: Introductionmentioning

confidence: 99%

An overview on AIEgen‐decorated porphyrins: Current status and applications

2023

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“…Supramolecular polymers are reversible, degradable, selfhealing, easy to process and renewable, and have broad application prospects in biodegradable materials, biomedical materials, supramolecular self-healing materials, biomedical applications and so on. 3,8,[38][39][40][41][42][43][44][45][46][47] For example, Yang and coworkers reported water-dispersible fluorescent nanoparticles of hydrogen-bonded supramolecular polymers by the miniemulsion method, which could be fine-tuned by efficient excitation energy transfer in co-assemblies of the energy donor and acceptor fluorophore-based monomers and have been successfully applied in cellular imaging and fluorescent inks. 48 Zhou and coworkers prepared a dandelion-like supramolecular polymer through non-covalent host-guest coupling with a novel hierarchical self-assembly behavior, which display great potentials to construct aqueous light-harvesting system.…”

Section: Introductionmentioning

confidence: 99%

Construction of aggregation-induced emission photosensitizers based on supramolecular polymers for enhanced photocatalytic oxidative coupling of amines

Zhang,

Ma,

Liu

et al. 2023

Polym. Chem.

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“…[62] Yang et al reviewed different AIE-active supramolecular assemblies for sensing and detecting different analytes, which encompass studies associated with AIEgen-based visualization. [63] Nevertheless, it is still lacking a comprehensive review to summarize the recent progress in this emerging area. Herein, we provide coverage of the recent developments of AIEgens applied in the visualization of dynamic processes associated with the supramolecular assembly.…”

Section: Introductionmentioning

confidence: 99%

Visualization of supramolecular assembly by aggregation‐induced emission

et al. 2022

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Supramolecular architectures are constructed by the self‐assembly of small building blocks via the use of metal‐ligand coordination, π–π stacking interactions, hydrogen bonding, host‐guest interactions, and other noncovalent driving forces, which confer unique dynamic reversibility and stimulus responsiveness to the supramolecular materials and also lead to the demand of expensive and complex equipment for the characterization of supramolecular assembly processes. Fortunately, the self‐assembly processes bring the monomeric chromophores together, offering possibilities to establish ties between the supramolecular assembly and aggregation‐induced emission (AIE) techniques. Compared to conventional luminescent molecules, AIE luminogens (AIEgens) exhibit significant fluorescence enhancement upon the restriction of molecular motions, thus displaying the advantages of signal amplification and low background noises. Given the above, the real‐time, sensitive, and in situ visualization of the formation of self‐assemblies and their stimuli responsiveness based on AIE becomes accessible. Here, we review recent works that encompass the visualization of supramolecular assembly‐related behaviors by means of AIE characteristics of chromophores. The organization of this review will be by different types of supramolecular architectures, including metallacycles/cages, micelles/vesicles, supramolecular polymers, and supramolecular gels. An overview of future opportunities and challenges for the real‐time monitoring of supramolecular assembly by AIE is also provided.

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Frontispiece: Supramolecular Assemblies with Aggregation‐Induced Emission Properties for Sensing and Detection

Cited by 7 publications

References 0 publications

An overview on AIEgen‐decorated porphyrins: Current status and applications

An overview on AIEgen‐decorated porphyrins: Current status and applications

Construction of aggregation-induced emission photosensitizers based on supramolecular polymers for enhanced photocatalytic oxidative coupling of amines

Visualization of supramolecular assembly by aggregation‐induced emission

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