Novel zinc Metalloporphyrin based metal-organic framework for Quantitative & Reusable Sensing of nitrobenzene

Inorganica Chimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 122785 - 122785

Published: May 1, 2025

Language: Английский

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Recent advances and future perspectives in electrochemical sensing of biomarkers by using MOF- based electrode materials

Emergent Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

Abstract Metal-organic frameworks (MOF) are an extraordinarily versatile class of porous nanostructured materials that have gained popularity in several scientific fields. Organic ligands coupled to the inorganic metal centers or clusters produce MOFs. This frontier review paper critically summarizes most recent developments MOF-based for electrochemical (EC) detection key biomarkers, including glucose, dopamine, lactic acid, L-tryptophan, uric and ascorbic acids, H 2 O , nicotine. Various techniques, such as cyclic voltammetry (CV), chronoamperometry, differential pulse (DPV) been employed enhance sensitivity specificity. EC sensing systems hold promise medical diagnostics, particularly diseases diabetes, neurodegenerative cardiovascular disorders, cancer. These sensors offer distinctive features like extensive specific surface area, tunable pore sizes, exceptional catalytic performance, abundant active sites, enabling sensitive, rapid, cost-effective biomarker detection. The construction different nanostructures, nanoparticles, nanorods, nanowires, three-dimensional networks, has further improved electro-catalytic efficiency materials. We also assess performance advanced MOF-derived sensor platforms, discuss future challenges potential improvements, enzyme-free clinical diagnostics. work underscores effective tools detecting a wide range compounds biomolecules relevant human health. Graphical abstract

Language: Английский

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Redox Synergy: Enhancing Gas Sensing Stability in 2D Conjugated Metal–Organic Frameworks via Balancing Metal Node and Ligand Reactivity

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(35)

Published: May 22, 2024

Abstract Two‐dimensional conjugated metal–organic frameworks (2D c ‐MOFs) have emerged as promising candidates in gas sensing, owing to their tunable porous structure and conductivity. Nevertheless, the reported sensing mechanisms heavily relied on electron transfer between metal nodes molecules. Normally, strong interaction sites target molecule would result poor recovery thus bad recycling property. Herein, we propose a redox synergy strategy overcome this issue by balancing reactivity of ligands. A 2D ‐MOF, Zn 3 (HHTQ) 2 , was prepared for nitrogen dioxide (NO ) which constructed from active ligands (hexahydroxyltricycloquinazoline, HHTQ) inactive transition‐metal ions (Zn 2+ ). Substantial characterizations theoretical calculations demonstrated that utilizing only interactions NO not high sensitivity selectivity, but also excellent cycling stability could be achieved. In contrast, control experiments employing isostructural ‐MOFs with Cu/Ni exhibited irreversible sensing. Our current work provides new design materials, emphasizing harnessing activity enhance MOF materials.

Language: Английский

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A Highly Sensitive NiO Flexible Temperature Sensor Prepared by Low-Temperature Sintering Electrohydrodynamic Direct Writing

Micromachines, Journal Year: 2024, Volume and Issue: 15(9), P. 1113 - 1113

Published: Aug. 31, 2024

Flexible temperature sensors have diverse applications and a great potential in the field of monitoring, including healthcare, smart homes automotive industry. However, current flexible sensor preparation generally suffers from process complexity, which limits its development application. In this paper, nickel oxide (NiO) based on low-temperature sintering technology is introduced. The prepared NiO has high-resolution measurement performance good stability, detection over wide range (25 to 70 °C) high sensitivity (of maximum TCR −5.194%°C−1 thermal constant 3938 K). rapid response time was measured be 2 s at 27–50 °C, ensures accuracy reliability measurement. by electrohydrodynamic direct writing stable flexibility complex environments. can used monitor status equipment prevent failure or damage caused overheating.

Language: Английский

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Enhanced electrochemical sensor based on Uio-66-NH2/carbon nanotubes hybrid for selective detection of ofloxacin

Materials Today Chemistry, Journal Year: 2024, Volume and Issue: 42, P. 102441 - 102441

Published: Dec. 1, 2024

Language: Английский

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