Urchin-like fluorinated covalent organic frameworks decorated fabric for effective self-cleaning and versatile oil/water separation

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 459, P. 132149 - 132149

Published: July 24, 2023

Language: Английский

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Three-in-one covalent organic framework nanozyme: Self-reporting, self-correcting and light-responsive for fluorescence sensing 3-nitrotyrosine

Biosensors and Bioelectronics, Journal Year: 2023, Volume and Issue: 237, P. 115542 - 115542

Published: July 20, 2023

Language: Английский

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Donor–acceptor sp² covalent organic frameworks for photocatalytic H₂O₂ production and tandem bisphenol-A degradation

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(6), P. 3239 - 3248

Published: Jan. 1, 2024

Covalent organic frameworks are tunable photocatalysts. We synthesized donor–acceptor COFs and obtained a photocatalytic H 2 O production rate of 1952 μmol g −1 h in pure water rapid degradation bisphenol A by double action (photocatalytic situ ).

Language: Английский

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Donor–Acceptor Fully Sp²‐Carbon Conjugated Covalent Organic Frameworks for Photocatalytic H₂O₂ Production

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Abstract Covalent organic frameworks (COFs) are promising for photocatalytic H₂O₂ generation. However, imine‐linked COFs often suffer from poor charge separation and low performance. Therefore, constructing sp 2 carbon‐linked with extended π‐conjugation is very significant in boosting the properties, but their synthesis challenging due to reversibility of C═C bond. Here, two vinylene‐linked COFs: BBT‐ACN COF‐1 COF‐2 designed. To investigate effects different structures on exciton binding energy ( E b ), designed possesses a Donor–Acceptor (D–A) structure electron‐deficient benzobisthiazole (BBT) as acceptor benzotrithiophene donor, while latter holds π‐A pyrene π‐unit BBT acceptor. Both show production activity two‐step 2e − oxygen reduction reaction (ORR). As anticipated, D–A structured exhibits lower value, its H O rate pure water air reaches up 2.50 mmol g⁻¹ h⁻¹, ≈3 times higher than that (0.91 h⁻¹). This study reveals fully ‐carbon‐linked beneficial production, which provides an effective approach designing high‐performance photocatalysts.

Language: Английский

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Advances in antioxidant nanozymes for biomedical applications

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 502, P. 215610 - 215610

Published: Dec. 27, 2023

Language: Английский

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Bifunctional Mo₂N Nanoparticles with Nanozyme and SERS Activity: A Versatile Platform for Sensitive Detection of Biomarkers in Serum Samples

Analytical Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 9, 2024

The combined application of nanozymes and surface-enhanced Raman scattering (SERS) provides a promising approach to obtain label-free detection. However, developing nanomaterials with both highly efficient enzyme-like activity excellent SERS sensitivity remains huge challenge. Herein, we proposed one-step synthesis Mo2N nanoparticles (NPs) as "two-in-one" substrate, which exhibits peroxidase (POD)-like high activity. Its mimetic POD can catalyze the 3,3′,5,5′-tetramethylbenzidine (TMB) molecule SERS-active oxidized TMB (ox-TMB) efficiency. Furthermore, combining experimental profiling theory, mechanism POD-like enhancement NPs was explored in depth. Benefiting from outstanding properties NPs, versatile platform for indirect detection biomarkers developed based on NPs-catalyzed product ox-TMB, acts signal readout. feasibility this validated using glutathione (GSH) target antigens alpha-fetoprotein antigen (AFP) carcinoembryonic (CEA) representatives small molecules hydroxyl radical (·OH) scavenging effect proteins low cross-section, respectively. limits GSH, AFP, CEA were 0.1 μmol/L, 89.1, 74.6 pg/mL, Significantly, it also showed human serum samples recoveries ranging 96.0 101%. acquired values compared standard electrochemiluminescence method, relative error less than ±7.3. This work not only strategy active bifunctional but manifests their widespread multiple analysis.

Language: Английский

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Colorimetric detection of Staphylococcus aureus based on self-linkable and hollow organic-inorganic nanocomposites as light-driven oxidase-like nanozyme for cascade signal amplification

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 409, P. 135547 - 135547

Published: March 14, 2024

Language: Английский

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Tunable Structured 2D Nanobiocatalysts: Synthesis, Catalytic Properties and New Horizons in Biomedical Applications

Small, Journal Year: 2024, Volume and Issue: 20(33)

Published: April 2, 2024

2D materials have offered essential contributions to boosting biocatalytic efficiency in diverse biomedical applications due the intrinsic enzyme-mimetic activity and massive specific surface area for loading metal catalytic centers. Since difficulty of high-quality synthesis, varied structure, tough choice efficient sites with properties, artificial building nanobiocatalysts still faces great challenges. Here, this review, a timely comprehensive summarization latest progress future trends design biotherapeutic is provided, which their development. First, an overview synthesis-structure-fundamentals structure-property relationships nanobiocatalysts, both metal-free metal-based provided. After that, effective active discussed. Then, applied research recent years, including analysis, therapeutics, pharmacokinetics, toxicology systematically highlighted. Finally, directions are prospected. Overall, review provide cutting-edge multidisciplinary guidance accelerating developments expected.

Language: Английский

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Covalent copper-organic frameworks with light-activable catalytic centers as smart artificial enzymes for highly sensitive and wide-range biocatalytic diagnosis

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151881 - 151881

Published: May 3, 2024

Language: Английский

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Pyridine‐Bridged Covalent Organic Frameworks with Adjustable Band Gaps as Intelligent Artificial Enzymes for Light‐Augmented Biocatalytic Sensing

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

Published: May 9, 2024

One of the biggest challenges in biotechnology and medical diagnostics is finding extremely sensitive adaptable biosensors. Since metal-based enzyme-mimetic biocatalysts may lead to biosafety concerns on accumulative toxicity, it essential synthesize metal-free enzyme-mimics with optimal biocatalytic activity superior selectivity. Here, pyridine-bridged covalent organic frameworks (COFs) specific oxidase-like (OXD-like) activities as intelligent artificial enzymes for light-augmented sensing biomarkers are disclosed. Because adjustable bandgaps pyridine structures photocatalytic properties pristine COF structures, exhibit efficient, selective, light-responsive OXD-like activity. Moreover, show tunable detection capabilities, which outperform recently reported state-of-the-art OXD-mimics regarding biosensing efficiency. Notably, exhibits efficient multifaceted diagnostic activity, including low limit (LOD), enables visual assays abundant reducibility biomarkers. It believed that this design will offer unique high-sensitive low-cost colorimetric also provide new insights create highly enzyme-like materials via linkage-modulation strategies future applications.

Language: Английский

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