Boosted Circularly Polarized Luminescence of a Chiral Metallacage Through Co‐Assembly in Confined Microfluidic Environments DOI
Jianjian Zhao, Kai Zeng, Wei‐Tao Dou

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 35(3)

Published: Sept. 20, 2024

Abstract Chiral metallacages, with their precisely distributed luminescent and chiral units inherent adaptive chirality, represent an ideal framework for developing circularly polarized luminescence (CPL)‐active materials. Despite potential, enhancing the dissymmetry factor ( g lum ) of metallacage‐based materials remains a significant challenge. In this study, useful approach is proposed by co‐assembling donor metallacage Δ 4 / Λ ‐Zn A achiral acceptor Nile red (NiR), achieving efficient energy chirality transfer resulting in enhanced CPL these co‐assemblies. More importantly, microfluidic laminar flow utilized, known providing stable driving forces confined spaces, to achieve marked improvement values co‐assemblies within polymethyl methacrylate (PMMA) films. Computational fluid dynamics (CFD) simulations small‐angle X‐ray scattering (SAXS) experiments confirm that films containing /NiR, prepared via chips, display well‐defined distributions metallacages NiR due controllable assembly process facilitated flow. This work pioneers new methodology significantly enhance materials, opening avenues field photonics.

Language: Английский

Construction of Waste Paper-Chitosan-Based Membranes with pH-Tunable Surface Charge for Efficient Separation of Oil-in-Water Emulsion and Dye DOI

Siyao Tian,

Chang Liu,

Haoyi Hu

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(29), P. 10854 - 10868

Published: July 5, 2024

Developing a cost-effective, versatile, biodegradable, and biobased membrane is crucial for the sustainable treatment of complex wastewater. In this work, multifunctional was fabricated from polydopamine-modified waste paper (WP@PDA) hydrothermal carbonized chitosan (HTCC), through simple vacuum filtration. This demonstrated high efficiency in separating oil-in-water emulsions allowed situ dye removal under controllable pH conditions. The results showed that as-prepared WP@PDA/HTCC exhibited superhydrophilic, oil-resistant, pH-tunable surface charge features. With weight ratio WP@PDA HTCC 6:2, it displayed optimal mechanical properties structural stability aqueous environments. As expected, achieved outstanding performance different at 0.05 bar followed by satisfactory flux approximately 2400 L m–2 h–1 bar–1 separation around 99.5%. Furthermore, abundant functional groups on also endowed with capability both cationic anionic dyes. It can efficiently eliminate methyl orange (MO) methylene blue (MEB) dye-contaminated wastewater mainly electrostatic interactions. Even after filtering 1550 MO 1650 MEB simulated using membrane, its efficiencies toward dyes remained above 90.0%. Interestingly, WP@PDA/HTCC-1 presented bidirectional controlled behaviors mixture suitable solution due to feature. Most importantly, excellent reusability resistance against harsh chemical corrosions without losing properties. Therefore, could be promising material treatment.

Language: Английский

Citations

7
Multipocket Cage Enables the Binding of High-Order Bulky and Drug Guests Uncovered by MS Methodology DOI

Yin‐Hui Huang,

Yu‐Lin Lu, Zhong‐Min Cao

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(31), P. 21677 - 21688

Published: July 23, 2024

Achieving high guest loading and multiguest-binding capacity holds crucial significance for advancement in separation, catalysis, drug delivery with synthetic receptors; however, it remains a challenging bottleneck characterization of high-stoichiometry guest-binding events. Herein, we describe large-sized coordination cage (MOC-70-Zn

Language: Английский

Citations

6
Selective Aliphatic Aldimine Formation and Stabilization by a Hydrophobic Capsule in Water DOI
Ya Gao, Yu‐Jie Zhu, Ming‐Kai Zhao

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Imines and enamines are useful intermediates in biochemical aldol-type reactions since their acid/base characteristics accessible near neutrality. However, the generation of aldimines water is a challenge as equilibrium favors components alkyl amines aldehydes. Here, we report generation, recognition, protection accomplished by water-soluble capsule. The capsule provides well-defined hydrophobic cavity isolating from medium dry seam Se-N chalcogen bonds instead wet hydrogen water. A series diverse formed situ trapped rapidly (within 45 min at mM concentrations) D2O with more than 90% yields. encapsulated stable for least one month under ambient conditions. aliphatic selectively even though they less aromatic imines solution. can be released containers competitive guests such adamantane.

Language: Английский

Citations

0
Modifying Parallel Excitations into One Framework for C(sp3)─H Bond Activation with Energy Combined More Than Two Photons DOI Creative Commons

Qingbo Shen,

Jiali Chen,

Xu Jing

et al.

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

Published: July 25, 2024

Natural photosynthesis enzymes utilize energies of several photons for challenging oxidation water, whereas artificial photo-catalysis typically involves only single-photon excitation. Herein, a multiphoton excitation strategy is reported that combines parallel photo-excitations with photoinduced electron transfer process the activation C(sp

Language: Английский

Citations

2
Modulating the Aggregation States of a Pd6L4 Cage for Selectivity Flipping during the Stereo‐Divergent Semi‐Hydrogenation of Alkynes DOI
Wei Zhong,

Xu Jing,

Zhao Song

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

Abstract An enzyme‐mimicking catalytic system has been established using a singular palladium‐based octahedral cage as the supramolecular reactor, deftly unlocking off‐on‐off selectivity in semi‐hydrogenation of alkynes. Water serves critical regulator, modulating catalyst states, reaction rates, and endpoints. The choice solvent influences activity host–guest binding types homogeneous heterogeneous catalysis, effectively modifying steps involved Z → E isomerization during Kinetic inhibition experiments indicate that mimics activation characteristics enzymes towards substrates, enabling selective transformations within confined environment. utility this switchable cage‐confined catalysis demonstrated synthesis modification complex biologically active molecules with controllable / selectivity. This work sheds light on design control artificial counterparts enzymes, offering fundamental insights into factors influencing biological macromolecules.

Language: Английский

Citations

2
Stereochemical Control of Redox CoII/CoIII-Cages with Switchable Cotton Effects Based on Labile-Static States DOI
Yu‐Lin Lu,

Kai Wu,

Yin‐Hui Huang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(29), P. 20414 - 20424

Published: July 10, 2024

The structural dynamics of artificial assemblies, in aspects such as molecular recognition and transformation, provide us with a blueprint to achieve bioinspired applications. Here, we describe the assembly redox-switchable chiral metal-organic cages Λ

Language: Английский

Citations

1
Modulating the Aggregation States of a Pd6L4 Cage for Selectivity Flipping during the Stereo‐Divergent Semi‐Hydrogenation of Alkynes DOI Open Access
Wei Zhong, Jing Xu, Song Zhao

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

Abstract An enzyme‐mimicking catalytic system has been established using a singular palladium‐based octahedral cage as the supramolecular reactor, deftly unlocking off‐on‐off selectivity in semi‐hydrogenation of alkynes. Water serves critical regulator, modulating catalyst states, reaction rates, and endpoints. The choice solvent influences activity host–guest binding types homogeneous heterogeneous catalysis, effectively modifying steps involved Z → E isomerization during Kinetic inhibition experiments indicate that mimics activation characteristics enzymes towards substrates, enabling selective transformations within confined environment. utility this switchable cage‐confined catalysis demonstrated synthesis modification complex biologically active molecules with controllable / selectivity. This work sheds light on design control artificial counterparts enzymes, offering fundamental insights into factors influencing biological macromolecules.

Language: Английский

Citations

0
Boosted Circularly Polarized Luminescence of a Chiral Metallacage Through Co‐Assembly in Confined Microfluidic Environments DOI
Jianjian Zhao, Kai Zeng, Wei‐Tao Dou

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 35(3)

Published: Sept. 20, 2024

Abstract Chiral metallacages, with their precisely distributed luminescent and chiral units inherent adaptive chirality, represent an ideal framework for developing circularly polarized luminescence (CPL)‐active materials. Despite potential, enhancing the dissymmetry factor ( g lum ) of metallacage‐based materials remains a significant challenge. In this study, useful approach is proposed by co‐assembling donor metallacage Δ 4 / Λ ‐Zn A achiral acceptor Nile red (NiR), achieving efficient energy chirality transfer resulting in enhanced CPL these co‐assemblies. More importantly, microfluidic laminar flow utilized, known providing stable driving forces confined spaces, to achieve marked improvement values co‐assemblies within polymethyl methacrylate (PMMA) films. Computational fluid dynamics (CFD) simulations small‐angle X‐ray scattering (SAXS) experiments confirm that films containing /NiR, prepared via chips, display well‐defined distributions metallacages NiR due controllable assembly process facilitated flow. This work pioneers new methodology significantly enhance materials, opening avenues field photonics.

Language: Английский

Citations

0