Color-tunable single-fluorophore supramolecular system with assembly-encoded emission

Wang, Qian; Zhang, Qi; Zhang, Qiwei; Li, Xin; Zhao, Cai-Xin; Xu, Tianyi; Qu, Da‐Hui; Tian, He

doi:10.1038/s41467-019-13994-6

Cited by 247 publications

(112 citation statements)

References 59 publications

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“…have been developed by the self-assembly of building blocks. Diverse noncovalent interactions include hydrogen-bonding, 12,13 π-π stacking, 14,15 van der Waals interactions, 16,17 electrostatic interactions, 18 hydrophobic effects, 19,20 host-guest interactions 21,22 and dynamic covalent bonds. [23][24][25] Precisely tuned precursor molecules organize into desired ensembles with distinct physicochemical properties via the "bottom-up" approaches.…”

Section: Introductionmentioning

confidence: 99%

“…36,37,47 Generally, there has been a family of supramolecular toolboxes whose fundamentals have been well established, such as hydrogen bonds, host-guest interactions, metal coordination, hydrophilic/hydrophobic force, and Columbic force. [12][13][14][15][16][17][18][19][20][21][22][23][24][25] The reversibility of noncovalent interactions enables the dynamic modulation of intermolecular interactions by external stimuli, including light, temperature, pH, chemical redox, and microenvironments. 48,49 The related studies about macromolecular adhesives and coatings have emerged over the past two decades, which have been well summarized in several outstanding reviews.…”

Section: Introductionmentioning

confidence: 99%

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Supramolecular adhesive materials from small‐molecule self‐assembly

et al. 2020

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Developing high-performance adhesive materials not only aims at industrial and social requirements but also bears the fundamental importance of understanding the chemical factors of biological adhesion to develop biomimetic adhesive materials. Owing to the wide development of supramolecular chemistry, numerous supramolecular tools are exploited and proved to be reliable in the replacement of traditional covalent materials by reversible noncovalent or dynamic covalent materials. Taking advantage of these readyto-use supramolecular toolboxes, supramolecular adhesive materials are rising and promising toward "smart" adhesives, that is, enabling responsiveness, reversibility, and recyclability. Compared with polymeric adhesive materials, low-molecular-weight adhesives feature chemically precise structure, easier engineering by molecular design, and hence higher reproducibility. However, it remains highly challenging to make high-performance adhesive materials by low-molecular-weight feedstocks. This review will focus on the recent advancement in the construction of supramolecular adhesive materials by smallmolecule self-assembly. The design guidelines and consideration on the molecular scale will be discussed and summarized on how to enhance the strength of adhesives. Meanwhile, owing to the dynamic nature of supramolecular self-assembly, several "smart" functions of such materials will be presented, such as stimuli-responsiveness and adaptiveness. Finally, current challenges and future perspectives of this emerging field will be proposed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Supramolecular adhesive materials from small‐molecule self‐assembly

et al. 2020

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“…Accordingly, a change of the luminescence properties upon aggregation can be used for visualizing material aggregation and self-assembly with different forms. Aggregation-induced emission (AIE) [4][5][6][7][8][9][10][11], referring to some type of organic luminophores that can reveal bright luminescence in aggregated or solid states by the suppression of the nonradiative decay, plays an important role in many fields of application, like displays and lighting [4][5][6][7][8][9][10][11], in information technology [12][13][14][15], and molecular probing [16][17][18]. However, water is largely required for the preparation of AIE aggregates (e.g., adding water into THF for preparing most of AIE aggregates [4][5][6][7][8][9][10][11][19][20][21] or conversely adding THF into water for aggregating some water-soluble AIEgens [22,23]).…”

Section: Introductionmentioning

confidence: 99%

Visualizing Material Processing via Photoexcitation-Controlled Organic-Phase Aggregation-Induced Emission

Yue

Baryshnikov

et al. 2021

Research

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Aggregation-induced emission (AIE) has been much employed for visualizing material aggregation and self-assembly. However, water is generally required for the preparation of the AIE aggregates, the operation of which limits numerous material processing behaviors. Employing hexathiobenzene-based small molecules, monopolymers, and block copolymers as different material prototypes, we herein achieve AIE in pure organic phases by applying a nonequilibrium strategy, photoexcitation-controlled aggregation. This strategy enabled a dynamic change of molecular conformation rather than chemical structure upon irradiation, leading to a continuous aggregation-dependent luminescent enhancement (up to ~200-fold increase of the luminescent quantum yield) in organic solvents. Accompanied by the materialization of the nonequilibrium strategy, photoconvertible self-assemblies with a steady-state characteristic can be achieved upon organic solvent processing. The visual monitoring with the luminescence change covered the whole solution-to-film transition, as well as the in situ photoprocessing of the solid-state materials.

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“…Nevertheless, these systems either require tedious organic syntheses or possess complicated chemical compositions. Recently, single-fluorophore-based emissive materials have shown the potential to allow fluorescence manipulation in a rather simple manner, especially when aggregation-induced emission (AIE)-active fluorophores are used [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Controlling Molecular Aggregation-Induced Emission by Controlled Polymerization

Bao

2021

Molecules

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In last twenty years, the significant development of AIE materials has been witnessed. A number of small molecules, polymers and composites with AIE activity have been synthesized, with some of these exhibiting great potential in optoelectronics and biomedical applications. Compared to AIE small molecules, macromolecular systems—especially well-defined AIE polymers—have been studied relatively less. Controlled polymerization methods provide the efficient synthesis of well-defined AIE polymers with varied monomers, tunable chain lengths and narrow dispersity. In particular, the preparation of single-fluorophore polymers through AIE molecule-initiated polymerization enables the systematic investigation of the structure–property relationships of AIE polymeric systems. Here, the main polymerization techniques involved in these polymers are summarized and the key parameters that affect their photophysical properties are analyzed. The author endeavored to collect meaningful information from the descriptions of AIE polymer systems in the literature, to find connections by comparing different representative examples, and hopes eventually to provide a set of general guidelines for AIE polymer design, along with personal perspectives on the direction of future research.

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Color-tunable single-fluorophore supramolecular system with assembly-encoded emission

Cited by 247 publications

References 59 publications

Supramolecular adhesive materials from small‐molecule self‐assembly

Supramolecular adhesive materials from small‐molecule self‐assembly

Visualizing Material Processing via Photoexcitation-Controlled Organic-Phase Aggregation-Induced Emission

Controlling Molecular Aggregation-Induced Emission by Controlled Polymerization

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