One‐Pot and Gram‐Scale Synthesis of Fe‐Based Nanozymes with Tunable O2 Activation Pathway and Specificity Between Associated Enzymatic Reactions DOI
Yuwei Qiu, Tianqi Cheng, Bo Yuan

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 15, 2024

Abstract Nanozymes have recently gained attention for their low cost and high stability. However, unlike natural enzymes, they often exhibit multiple enzyme‐like activities, complicating use in selective bioassays. Since H 2 O are common substrates these reactions, controlling activation—and thus reaction specificity—is crucial. Recent advances tuning the chemical state of cerium enabled control over activation pathways tunable peroxidase/haloperoxidase‐like activities. In contrast, on an element oxidase/laccase nanozymes impact its activities remains unexplored. Herein, a facile one‐pot method is presented gram‐scale synthesis Fe‐based with compositions Fe 3 4 C by adjusting preparation temperatures. The ‐containing samples superior laccase‐like activity, while C‐containing counterparts demonstrate better oxidase‐like activity. This divergent behavior linked to surface species: abundant reactive 2+ promotes activity via 3+ ‐superoxo formation, whereas metallic facilitates OH radical generation Controlled improved sensitivity corresponding biomolecule detection, which should inform design enhanced specificity.

Language: Английский

Photo-enzymatic synergistic degradation of ciprofloxacin hydrochloride by CeO2(100)/Bi2Fe4O9 S-scheme heterojunction induced by crystal phase effect DOI
Jizhong Li, Wei Han, Xiaohua Tang

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132039 - 132039

Published: Feb. 1, 2025

Language: Английский

Citations

0
The construction of p-n heterojunction in nanozyme for improved peroxidase-like activity and “point-of-use” water disinfection DOI

Jun‐Jun Lu,

K. Yao, Xinxin Xu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161757 - 161757

Published: March 1, 2025

Language: Английский

Citations

0
Enzyme-like CeO2 Nanomaterials with Different Structure–Activity for Ulcerative Colitis Therapy DOI Creative Commons
Bo Su, Zihao Xu, Mengdan Shen

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

Language: Английский

Citations

0
Activation of peroxymonosulfate via g-C3N4/CeO2 heterojunction for efficient degradation of nitenpyram under visible light DOI

Fanqi Yi,

Wenbo Li, Ling Li

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115997 - 115997

Published: Feb. 1, 2025

Language: Английский

Citations

0
Substrate Selection in Antifouling and Antimicrobial Performances of Nanomaterial Coatings: A Comparison of PDMS, PMMA, and Glass DOI
Wanqing Dai, Jing Sun, Yaru Gao

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 5, 2025

Language: Английский

Citations

0
Unveiling the Pivotal Role of Ce Coordination Structures and Their Surface Arrangements in Governing 2-Cyanopyridine Hydrolysis for Direct Dimethyl Carbonate Synthesis from CO2 and Methanol DOI
Linyuan Tian,

Yin‐Song Liao,

Zhanping Xiao

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(22)

Published: Nov. 1, 2024

The direct synthesis of dimethyl carbonate (DMC) from CO2 and methanol presents a promising alternative to conventional methods that use toxic chemicals, but its yield is limited by equilibrium. Coupling this reaction with 2-cyanopyridine (2-Cp) hydrolysis over CeO2-based catalysts was found significantly boost the DMC removing water. Our recent study has revealed key species being activated surface Ce sites produce DMC. reactivity methoxy toward varies greatly their configuration, which determined coordination structures. A similar challenge remains in understanding CeO2 feature governing 2-Cp 2-picolinamide (2-PA). Herein, nanocrystallites well-defined (111), (110), (100) surfaces were used effects structures arrangements coupled synthesis. We synergistic adsorption via cyano-N pyridine-N on (111) (110) enables nucleophilic addition lattice oxygen, producing imino-like N stronger Lewis basicity, turn facilitates hydrolysis. outperforms due unique structure arrangement, allows more activation easier 2-PA desorption. Notably, (111)-enclosed octahedral herein reported pristine reaction. In contrast, adsorption/activation does not occur surface, leading low activity. These findings provide insights for designing conversion alcohols amines using as dehydrant.

Language: Английский

Citations

1
A Stepwise Electrochemical Baeyer–Villiger Oxidation with Water as the Oxygen Source DOI

Xiaoxue Luo,

Yufeng Wang,

Baijing Wu

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(42), P. 10435 - 10441

Published: Oct. 10, 2024

Baeyer-Villiger oxidation is a method with 125-year history that produces lactones through synergistic mechanism by reaction stoichiometric peracids. Therefore, substituted can be obtained from only cyclic ketones. In this context, an electrochemical was developed using CeO

Language: Английский

Citations

0
One‐Pot and Gram‐Scale Synthesis of Fe‐Based Nanozymes with Tunable O2 Activation Pathway and Specificity Between Associated Enzymatic Reactions DOI
Yuwei Qiu, Tianqi Cheng, Bo Yuan

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 15, 2024

Abstract Nanozymes have recently gained attention for their low cost and high stability. However, unlike natural enzymes, they often exhibit multiple enzyme‐like activities, complicating use in selective bioassays. Since H 2 O are common substrates these reactions, controlling activation—and thus reaction specificity—is crucial. Recent advances tuning the chemical state of cerium enabled control over activation pathways tunable peroxidase/haloperoxidase‐like activities. In contrast, on an element oxidase/laccase nanozymes impact its activities remains unexplored. Herein, a facile one‐pot method is presented gram‐scale synthesis Fe‐based with compositions Fe 3 4 C by adjusting preparation temperatures. The ‐containing samples superior laccase‐like activity, while C‐containing counterparts demonstrate better oxidase‐like activity. This divergent behavior linked to surface species: abundant reactive 2+ promotes activity via 3+ ‐superoxo formation, whereas metallic facilitates OH radical generation Controlled improved sensitivity corresponding biomolecule detection, which should inform design enhanced specificity.

Language: Английский

Citations

0