Supramolecular assembly-induced yellow emission of 9,10-distyrylanthracene bridged bis(pillar[5]arene)s

Song, Nan; Chen, Daixiong; Xia, Meng-Chan; Qiu, Xi-Long; Ma, Ke; Xu, Bin; Tian, Wenjing; Yang, Ying‐Wei

doi:10.1039/c4cc08205b

Cited by 119 publications

(42 citation statements)

References 79 publications

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“…The superior structures, facile functionalization, and typical host-guest properties of pillarenes stimulated a tremendous upsurge of interest in artifi cial transmembrane channels, [ 33,34 ] drug nanocarriers, [35][36][37][38][39][40] gas sorption, [ 41,42 ] MOFs, [ 43 ] sensing and detection, [ 44 ] stabilization of nanoparticles, biological applications, [ 45,46 ] etc. [47][48][49][50][51] Herein, benign activation mechanisms have been applied to targeted drug release systems constructed from monodisperse nanoMOFs (NMOFs) and carboxylatopillar [5]arene (CP5)-based stimuli-responsive supramolecular gates for CNS disease therapy for the fi rst time ( Figure 1 ). External heating as an important treatment of physical therapy in modern and traditional medicine has been introduced to regulate drug release from the gated nanocarriers.…”

Section: Introductionmentioning

confidence: 99%

Zn²⁺‐Triggered Drug Release from Biocompatible Zirconium MOFs Equipped with Supramolecular Gates

Tan

Zhou

et al. 2015

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A new theranostic nanoplatform, comprising of monodisperse zirconium metal-organic frameworks (MOFs) as drug carriers and carboxylatopillar[5]arene-based supramolecular switches as gating entities, is constructed, and controlled drug release triggered by bio-friendly Zn(2+) ions (abundant in synaptic vesicles) and auxiliary thermal stimulus is realized. This on-command drug delivery system exhibits large pore sizes for drug encapsulation, excellent biodegradability and biocompatibility, extremely low cytotoxicity and premature drug release, and superior dual-stimuli responsiveness, opening a new avenue in targeted drug delivery and controlled release of therapeutic agents, especially in the treatment of central nervous system diseases.

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Section: Introductionmentioning

confidence: 99%

Zn²⁺‐Triggered Drug Release from Biocompatible Zirconium MOFs Equipped with Supramolecular Gates

Tan

Zhou

et al. 2015

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“…[13] In most cases, the partially functionalized pillar [5]arenes were obtained either by co-oligomacrocyclization of different 1,4-bis(alkoxy)-benzene monomers, [8a,9b,14] or through partial dealkylation followed by substitution. [7f,15] [5]arene.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Pillar[n]arene[5−n]quinines via Partial Oxidation of Pillar[5]arene

Xie

et al. 2015

Chin. J. Chem.

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“…Hitherto, a number of AIE‐active host–guest polymers based on pillararenes have been reported since 2014 for either fundamental study or specific applications. In 2014 and 2015, our research group reported two types of AIE‐active supramolecular polymers successively based on the host–guest recognition of pillararenes . After modifying two representative AIEgens (TPE and DSA) with pillar[5]arene (P5) to give TPE‐bridged P5 tetramer (TPE‐(P5) 4 ) and DSA‐bridged P5 dimer (DSA‐(P5) 2 ) ( Figure a,b), we further fabricated two host–guest systems with enhanced blue and yellow fluorescence, respectively, by constraining the intramolecular motions through supramolecular self‐assembly and polymerization between the AIEgen‐containing host molecules and neutral guest linkers.…”

Section: Aie‐active Supramolecular Nanocomplexes/polymersmentioning

confidence: 99%

Section: Aie‐active Supramolecular Nanocomplexes/polymersmentioning

confidence: 99%

Manipulating Aggregation‐Induced Emission with Supramolecular Macrocycles

Lou

Yang

2018

Advanced Optical Materials

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host and guest bears excellent selectivity. [5] On the other hand, the noncovalent interactions are sensitive to various influential elements in the surrounding environment, including light irradiation, [6] redox reactions, [7] pH variations, [8] competitive factors, [9] and chemical or biological interfering. [10,11] Owing to the highly desired characteristics of host-guest systems comprising of supramolecular macrocycles and their guests, the dynamic nature of their molecular activities, the reversibility between assembly and disassembly, the particular intermolecular recognition and the responsiveness toward external stimuli, supramolecular host-guest systems become outstanding candidates as building blocks in the construction of nanoscaled smart materials with controllable properties, which are substantial in the research ranges of nanotechnology and materials science. Up till today, a number of host compounds, such as crown ethers, [12,13] cyclodextrins (CDs), [14] calixarenes, [15] cucurbit[n]urils (CB[n]s), [16][17][18] and pillararenes, [19,20] on account of their developed synthetic procedures, relatively high yieldings, numerous modification possibilities and tunability, [21,22] along with their well-explored host-guest properties, [5] have been utilized to construct stimuliresponsive smart materials to serve as either supramolecular recognizing agents or the major building blocks for reversible artificial complexes. [1,23,24] An important use of macrocyclic compounds to create functional smart materials lies in the construction of controllable fluorescent systems. [25] In the literature, one can find considerable examples of fluorescent systems manipulated by supramolecular macrocycles through their distinctive inclusion complexation activities. [26][27][28][29] The concept of aggregation-induced emission (AIE) was first proposed by Tang and co-workers in 2001, [30] demonstrating an unprecedented fluorescent phenomenon, which bears luminescent features in sharp contrast to the traditional aggregation-caused quenching (ACQ) that is typical for conventional organic fluorophores. While the ACQ effect stands as a major hindrance for the solidation of luminescent materials since luminophores with planar molecular structures undergo fluorescence quenching in aggregated state, dye molecules possessing unplanar conformations, on the contrary, are able to exhibit stronger emission upon aggregation according to the restriction of intramolecular motions (RIM) or rotations (RIR), which suppresses nonradiative relaxation and actuates the energy release through radiative pathway. [31,32] Two essential elements of smart materials are their capabilities of responding to external stimuli and the specific recognition toward different targets, which renders supramolecular macrocycles an ideal type of building blocks for materials construction. Aggregation-induced emission (AIE) has been intensively investigated for two decades not only for the realization of solid-state fluorescent materials, but also for the fabrication...

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Supramolecular assembly-induced yellow emission of 9,10-distyrylanthracene bridged bis(pillar[5]arene)s

Abstract: 9,10-Distyrylanthracene has been introduced to bridge two pillarenes to form a dimeric host, which can assemble into a linear supramolecular polymer upon cooperatively binding to a neutral guest linker, exhibiting yellow fluorescence emission in solution and solid states.

Cited by 119 publications

References 79 publications

Zn²⁺‐Triggered Drug Release from Biocompatible Zirconium MOFs Equipped with Supramolecular Gates

Zn²⁺‐Triggered Drug Release from Biocompatible Zirconium MOFs Equipped with Supramolecular Gates

Synthesis of Pillar[n]arene[5−n]quinines via Partial Oxidation of Pillar[5]arene

Manipulating Aggregation‐Induced Emission with Supramolecular Macrocycles

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Supramolecular assembly-induced yellow emission of 9,10-distyrylanthracene bridged bis(pillar[5]arene)s

Abstract: 9,10-Distyrylanthracene has been introduced to bridge two pillarenes to form a dimeric host, which can assemble into a linear supramolecular polymer upon cooperatively binding to a neutral guest linker, exhibiting yellow fluorescence emission in solution and solid states.

Cited by 119 publications

References 79 publications

Zn2+‐Triggered Drug Release from Biocompatible Zirconium MOFs Equipped with Supramolecular Gates

Zn2+‐Triggered Drug Release from Biocompatible Zirconium MOFs Equipped with Supramolecular Gates

Synthesis of Pillar[n]arene[5−n]quinines via Partial Oxidation of Pillar[5]arene

Manipulating Aggregation‐Induced Emission with Supramolecular Macrocycles

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Product

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Zn²⁺‐Triggered Drug Release from Biocompatible Zirconium MOFs Equipped with Supramolecular Gates

Zn²⁺‐Triggered Drug Release from Biocompatible Zirconium MOFs Equipped with Supramolecular Gates