Recent advances toward emerging nanozymes with aggregation-induced emission DOI Creative Commons
Xin Li, Zhao Wang, Jing He

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

AIE luminogens (AIEgens) are a class of unique fluorescent molecules that exhibit significantly enhanced luminescence properties and excellent photostability in the aggregated state. Recently, it has been found some AIEgens can produce reactive oxygen species, which means they may have potential enzyme-like activities thus termed "AIEzymes". Consequently, discovery design novel with emerged as new exciting research direction. Additionally, enhance catalytic efficiency traditional nanozymes by direct combination, thereby endowing multifunctionality. In this regard, aggregation-induced emission (AIE) properties, represents win-win integration, not only take full advantage low cost stability nanozymes, but also incorporate biocompatibility fluorescence AIEgens. These synergistic compounds bring about opportunities for various applications, making AIEzymes interest biomedical research, food analysis, environmental monitoring, especially imaging-guided diagnostics. This review will provide an overview latest strategies achievements rational preparation AIEzymes, well current trends, future challenges prospective solutions. We expect work encourage motivate more people to study explore further promote their applications fields.

Language: Английский

Aggregation induced emission dynamic chiral europium(III) complexes with excellent circularly polarized luminescence and smart sensors DOI Creative Commons
Yun‐Lan Li, Hai‐Ling Wang, Zhong‐Hong Zhu

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: April 4, 2024

Abstract The synthesis of dynamic chiral lanthanide complex emitters has always been difficult. Herein, we report three pairs Eu III ( R/S -Eu-R-1 , R = Et/Me; -Eu-Et-2 ) with aggregation-induced emission. In the molecular state, these complexes have almost no obvious emission, while in aggregate they greatly enhance emission through restriction intramolecular rotation and vibration. asymmetry factor circularly polarized luminescence brightness are as high 0.64 5 D 0 → 7 F 1 2429 M −1 cm -Eu-Et-1 achieving a rare double improvement. -Eu-Et-1/2 exhibit excellent sensing properties for low concentrations Cu II ions, their detection limits 2.55 4.44 nM, respectively. Dynamic constructed by using ligands rotor structures or vibration units, an approach that opens door construction luminescent materials.

Language: Английский

Citations

45
Photocatalysis Meets Confinement: An Emerging Opportunity for Photoinduced Organic Transformations DOI

Yanke Hao,

Yu‐Lin Lu, Zhiwei Jiao

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(15)

Published: Jan. 19, 2024

Abstract The self‐assembled metal‐organic cages (MOCs) have been evolved as a paradigm of enzyme‐mimic catalysts since they are able to synergize multifunctionalities inherent in metal and organic components constitute microenvironments characteristic enzymatic spatial confinement versatile host–guest interactions, thus facilitating unconventional transformations via unique driving‐forces such weak noncovalent binding electron/energy transfer. Recently, MOC‐based photoreactors emerged burgeoning platform supramolecular photocatalysis, displaying anomalous reactivities selectivities distinct from bulk solution. This perspective recaps two decades journey the photoinduced radical reactions by using photoactive (PMOCs) artificial reactors, outlining how cage‐confined photocatalysis was stoichiometric photoreactions photocatalytic turnover, high‐energy UV‐irradiation sustainable visible‐light photoactivation, simple multi‐level chemo‐ stereoselectivities. We will focus on PMOCs that merge structural functional biomimicry into single‐cage behave multi‐role photoreactors, emphasizing their potentials tackling current challenges through single‐electron transfer (SET) or energy (EnT) pathways simple, green while feasible manner.

Language: Английский

Citations

27
Hetero- and Homointerlocked Metal–Organic Cages DOI
Yingguo Li, Hong Jiang, Wenqiang Zhang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(5), P. 3147 - 3159

Published: Jan. 27, 2024

Interlocked molecular assemblies constitute a captivating ensemble of chemical topologies, comprising two or more separate components that exhibit remarkably intricate structures. The interlocked are typically identical, and heterointerlocked systems comprise structurally distinct remain unexplored. Here, we demonstrate metal-templated synthesis can be exploited to afford not only homointerlocked cage but also cage. Treatment carboxylated 2,9-dimethyl-1,10-phenanthroline (dmp) Cu(I) bis-dmp linker with Ni

Language: Английский

Citations

19
Modifying Enzymatic Substrate Binding within a Metal–Organic Capsule for Supramolecular Catalysis DOI
Yang Yang,

Xu Jing,

Youpeng Shi

et al.

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(18), P. 10136 - 10148

Published: April 27, 2023

Supramolecular catalysis is established to modify reaction kinetics by substrate encapsulation, but manipulating the thermodynamics of electron-transfer reactions remains unexplored. Herein, we reported a new microenvironment-shielding approach induce an anodic shift in redox potentials hydrazine substrates, reminiscent enzymatic activation for N–N bond cleavage within metal–organic capsule H1. Equipped with catalytic active cobalt sites and substrate-binding amide groups, H1 encapsulated hydrazines form substrate-involving clathration intermediate, triggering reduction when electrons were acquired from electron donors. Compared free hydrazines, conceptual molecular confined microenvironment decreases Gibbs energy (up −70 kJ mol–1), which relevant initial reaction. Kinetic experiments demonstrate Michaelis–Menten mechanism, involves formation pre-equilibrium substrate-binding, followed cleavage. Then, distal N released as NH3 product squeezed. Integrating fluorescein into enabled photoreduction N2H4 rate ca. 1530 nmol min–1 ammonia, comparable that natural MoFe proteins; thus, provides attractive manifold toward mimicking activation.

Language: Английский

Citations

31
Construction of Covalent Organic Cages with Aggregation‐Induced Emission Characteristics from Metallacages for Mimicking Light‐Harvesting Antenna DOI
Yi Qin,

Qing‐Hui Ling,

Yu‐Te Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(36)

Published: July 15, 2023

A series of covalent organic cages built from fluorophores capable aggregation-induced emission (AIE) were elegantly prepared through the reduction preorganized M2 (LA )3 (LB )2 -type metallacages, simultaneously taking advantage synthetic accessibility and well-defined shapes sizes good chemical stability as well bright AIE fluorophores. Moreover, could be further post-synthetically modified into an amide-functionalized cage with a higher quantum yield. Furthermore, these presented proved to energy donors used construct light-harvesting systems employing Nile Red acceptor. These displayed efficient transfer relatively high antenna effect, which enabled their use photocatalysts for dehalogenation reaction. This research provides new avenue development luminescent photocatalysis.

Language: Английский

Citations

24
54 K Spin Transition Temperature Shift in a Fe6L4 Octahedral Cage Induced by Optimal Fitted Multiple Guests DOI
Fan Yin, Jian Yang, Li‐Peng Zhou

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(11), P. 7811 - 7821

Published: March 7, 2024

Spin-crossover (SCO) coordination cages are at the forefront of research for their potential in crafting next-generation molecular devices. However, due to scarcity SCO hosts and own limited cavities, interplay between host multiple guests binding has remained elusive. In this contribution, we present a family pseudo-octahedral (M6L4, M = ZnII, CoII, FeII, NiII) assembled from tritopic tridentate ligand L with metal ions. The utilization FeII ion leads successful creation Fe6L4-type cage. Host–guest studies these M6L4 reveal capacity encapsulate four adamantine-based guests. Notably, spin transition temperature T1/2 Fe6L4 is dependent on encapsulated. inclusion adamantine yields an unprecedented shift 54 K, record guest-mediated date. This drastic ascribed synergistic effect coupled optimal fit within host. Through straightforward thermodynamic cycle, affinities high-spin (HS) low-spin (LS) states separated apparent constant. result indicates that LS state stronger affinity than HS state. Exploring thermodynamics host–guest complexes allows us examine cavity. study reveals can be manipulated by encapsulation guests, cage ideal candidate determining guest fit.

Language: Английский

Citations

13
Multiple photofluorochromic luminogens via catalyst-free alkene oxidative cleavage photoreaction for dynamic 4D codes encryption DOI Creative Commons

Lin Lu,

Bo Wu, Xinyuan He

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: May 31, 2024

Abstract Controllable photofluorochromic systems with high contrast and multicolor in both solutions solid states are ideal candidates for the development of dynamic artificial intelligence. However, it is still challenging to realize multiple photochromism within one single molecule, not mention good controllability. Herein, we report an aggregation-induced emission luminogen TPE-2MO2NT that undergoes oxidation cleavage upon light irradiation accompanied by tunable from orange blue time-dependence. The photocleavage mechanism revealed self-generation reactive oxidants driving catalyst-free oxidative process. A comprehensive analysis other comparative molecules demonstrates molecular scaffold can be easily modified extended. Further, microenvironmental controllability photoreaction polymer matrices enables fabrication fluorescence images 4D information codes, providing strategies advanced controllable encryption.

Language: Английский

Citations

10
Bifunctional Copper Metal–Organic Framework Catalyst for Late-Stage Functionalization of Alkenes DOI
Lu Dong, Hu Chen, Xiaoli Tan

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 4198 - 4207

Published: Feb. 24, 2025

Language: Английский

Citations

1
Metallacage-crosslinked free-standing supramolecular networks via photo-induced copolymerization for photocatalytic water decontamination DOI Creative Commons
Rongrong Li, Haixin Zhang,

Yali Hou

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 19, 2025

The development of polymer materials for water decontamination makes a significant contribution to environmental protection and public health. Herein, we report the preparation metallacage-crosslinked free-standing supramolecular networks by photo-induced copolymerization acrylate metallacages butyl methacrylate decontamination. integration into endows good capability generating singlet oxygen via photosensitization, making them serve as type that can effectively eliminate diverse organic pollutants bacterial contaminants. This study not only provides mild effective strategy metallacage-cored but also explores their applications photocatalytic dye degradation killing, which will promote future metallacage-based applications. is important authors

Language: Английский

Citations

1
Porous Organic Cages with Aggregation‐Induced Emission Property for Anti‐counterfeiting Ink Bioimaging DOI Creative Commons
Anli Yang, Yifan Guo, Yanji Zhang

et al.

Energy & environment materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 12, 2025

The application of aggregation‐induced emission (AIE) materials in biological imaging holds multiple significances, including improving detection sensitivity and specificity, optimizing the process, expanding scope application, promoting advancements biomedical research. In this work, propeller ligand was constructed through McMurry coupling reaction Suzuki by using dimethoxybenzophenone as starting material. Then, an imine condensation carried out chloroform solution, a 3:2 molar ratio precursor to tri(2‐aminoethyl) amine synthesize C 3 symmetric porous organic cage B . structures compounds were determined nuclear magnetic resonance spectroscopy (NMR), electrospray ionization mass spectrometry (ESI‐MS) Fourier transform infrared (FT‐IR). optical investigation results reveal that L–B demonstrate remarkable properties tetrahydrofuran/water mixed solvent system, along with pronounced response tetrahydrofuran vapor stimuli. Consequently, Furthermore, given its unique cage‐like structure, high quantum yield, outstanding AIE behavior, promise for applications cell imaging.

Language: Английский

Citations

0