- Dual-Stimuli Responsive 2D Supramolecular Organic Framework for the Detection of Azoreductase Activity
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A 2D supramolecular organic framework (SOF) based on synthetic macrocycles has been constructed in water by a self-assembly strategy. Two new organic monomers of this SOF, possessing viologen and azobenzene functional groups, form a stimuli-responsive host–guest system upon cooperatively binding with cucurbit[8]uril rings. The reversible formation and dissociation of 2D SOF can be realized by the isomerization of azobenzene under ultraviolet and visible light. The light-responsive property of the SOF is highly reversible and stable for up to four cycles. Moreover, azoreductase produced by Escherichia coli can reduce the N=N double bond of azobenzene entities, resulting in fluorescence recovery of the system. As an excellent and effective fluorescent probe, the SOF can detect azoreductase activity for real-time monitoring of the growth process of Escherichia coli. The dual-stimuli responsive 2D SOF is envisioned to drive the development of responsive devices with complex functions.
- Zhang, Hao,Liang, Feng,Yang, Ying-Wei
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supporting information
p. 198 - 205
(2019/12/12)
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- In Situ Gold Nanoparticle Synthesis Mediated by a Water-Soluble Leaning Pillar[6]arene for Self-Assembly, Detection, and Catalysis
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An anionic water-soluble leaning pillar[6]arene (AWLP6) has been synthesized and utilized as both the reductant and stabilizer for the one-pot synthesis of gold nanoparticles (AWLP6-AuNPs). Interestingly, AWLP6-AuNPs show not only optimal performance in self-assembly and label-free detection of methyl viologen, one of the most widely used herbicides, but also efficient catalytic activity for the hydrogenation of p-nitrophenol.
- Wang, Xin,Wu, Jia-Rui,Liang, Feng,Yang, Ying-Wei
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supporting information
p. 5215 - 5218
(2019/09/03)
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- A biosensor based on self-clickable AIEgen: A signal amplification strategy for ultrasensitive immunoassays
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A signal amplified fluorogenic ELISA based on self-clickable fluorogens with aggregation-induced emission characteristics (AIEgen) as a substrate was developed for ultrasensitive immunoassay.
- Yuan, Youyong,Wu, Wenbo,Xu, Shidang,Liu, Bin
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supporting information
p. 5287 - 5290
(2017/07/10)
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- Dual-Stimuli-Responsive Fluorescent Supramolecular Polymer Based on a Diselenium-Bridged Pillar[5]arene Dimer and an AIE-Active Tetraphenylethylene Guest
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We report a new strategy to construct a multi-stimuli-responsive fluorescent supramolecular polymer by the strong host-guest interactions between a diselenium bond-bridged pillar[5]arene dimer and an AIE-active tetraphenylethylene (TPE)-containing neutral
- Wang, Yan,Lv, Ming-Zhe,Song, Nan,Liu, Zeng-Jie,Wang, Chunyu,Yang, Ying-Wei
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p. 5759 - 5766
(2017/08/14)
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- Investigating the effects of side chain length on the AIE properties of water-soluble TPE derivatives
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The emissive properties of fluorophores in aggregated state are important for the development of bio-sensors or bio-imaging reagents. So three water-soluble TPE derivatives with different lengths of side chains have been synthesized and we investigated the effects of side chains on aggregation-induced emission (AIE) properties in the aggregated states. The results indicate that side chains on the fluorophores play a pivotal role in their emission in aggregated state mediated by heparin or solid state, because the coplanarity of these TPE derivatives was affected by side chains. The rates of radiative decay kf and non-radiative decay knr have been obtained through the quantum yields and lifetime, and a larger k f and smaller knr were present for compound TPE-C4N, suggesting that the aggregated TPE-C4N should posses the most remarkable fluorescent property.
- Dong, Yifan,Wang, Weilun,Zhong, Cewen,Shi, Jianbing,Tong, Bin,Feng, Xiao,Zhi, Junge,Dong, Yuping
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supporting information
p. 1496 - 1500
(2014/03/21)
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- Synthesis of new tetraoxacyclophanes containing benzophenone units
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4,4′-Dihydroxybenzophenone was used as a precursor for synthesis of macrocyclic compounds. Low-temperature crystal structures were determined for 4,4′-diethoxybenzophenone (10), C17H18O3, orthorhombic, Pbcn, a = 7.2891(12), b = 6.2827(10), c = 31.1000(5) A, Z = 4 (one molecule with twofold symmetry), and 1,5,19,23-tetraoxa-12,30-dioxo[5.1.5.1]paracyclophane (6), C34H32O6, triclinic, P(-1), a = 9.1559(12), b = 11.634(2), c = 14.124(2) A, α = 93.745(12), β = 102.966(10), γ = 108.591(12)°, Z = 2, (two independent molecules each with inversion symmetry). The interplanar angles between aromatic rings is 53° for compound 10 and 53°, 49° for the two molecules of 6. IR , Raman and UV spectra were recorded for both compounds. Key words: tetraoxaparacyclophanes, benzophenone, preparation, crystal structure, IR and Raman spectra.
- Kus,Jones
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p. 965 - 977
(2007/10/03)
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