Smartphone-integrated colorimetric sensor for rapid detection of phenolic compounds based on the peroxidase-mimicking activity of copper/cerium-aspartic acid metal–organic framework

Microchimica Acta, Год журнала: 2025, Номер 192(1)

Опубликована: Янв. 1, 2025

Язык: Английский

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A comprehensive review of paper-based analytical devices for 17β-estradiol detection: Current status and future perspectives

Microchemical Journal, Год журнала: 2024, Номер 206, С. 111486 - 111486

Опубликована: Авг. 24, 2024

Язык: Английский

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Smartphone-Enhanced Nanozyme Sensors: Colorimetric and Fluorescence Sensing Techniques

Biosensors and Bioelectronics X, Год журнала: 2024, Номер unknown, С. 100544 - 100544

Опубликована: Сен. 1, 2024

Язык: Английский

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Intelligent hydrogel and smartphone-assisted colorimetric sensor based on Bi-metallic organic frameworks for effective detection of kanamycin and oxytetracycline

Microchimica Acta, Год журнала: 2025, Номер 192(3)

Опубликована: Март 1, 2025

Язык: Английский

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Engineering Two-Dimensional-Copper Phenolic Nanosheet from CuO Nanosphere for Enhanced Peroxidase Activity in Smartphone-Based Thiophanate-Methyl Detection via Analyte-Inhibition Mechanism

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

Optical sensors based on nanozymes have shown great promise for the rapid and sensitive detection of pesticide residues in environmental food samples. However, their applicability is often limited by a lack selectivity due to nonspecific enzyme inhibition. Therefore, we developed colorimetric sensing platform specifically tailored detect agricultural fungicide thiophanate-methyl (TpM), leveraging its unique inhibitory effect nanozyme activity. The symmetric ethylenediamine- bisthiourea-like groups TpM exhibit strong affinity metal sites, leading reduction catalytic performance. Thus, designed novel copper oxide nanosphere (CuO)-derived 2D phenolic nanosheet (2D-CuPNS) with enhanced peroxidase-like This facilitates oxidation TMB through OH radical generation via Fenton-like reaction involving Cu2+/Cu+ -C═C- bonds surface. Notably, activity 2D-CuPNS was selectively significantly inhibited specific interaction while remaining unaffected other pesticides. exhibited affinities H2O2, Km values 0.07 2.0 mM, respectively. As result, proposed sensor demonstrated high specificity detection, linear range 0.5-15 μM low limit 0.09 μM. A smartphone-assisted method also utilizing RGB from chromogenic reaction. Furthermore, immobilization substrate onto standard filter paper, ready-to-use paper-based were created. study introduces inhibition approach selective samples, providing versatile practical solution.

Язык: Английский

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Bimetal (Ni-Cu)- Metal-Organic Framework as an Efficient Peroxidase Nanozyme Integrated with a Smartphone-assisted paper-based Colorimetric sensor for Carbendazim detection in Food Samples

Journal of Food Composition and Analysis, Год журнала: 2024, Номер unknown, С. 107149 - 107149

Опубликована: Дек. 1, 2024

Язык: Английский

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Highly Porous 3D Ni-MOFs as an Efficient and Enzyme-Mimic Electrochemical Sensing Platform for Glucose in Real Samples of Sweat and Saliva in Biomedical Applications

ACS Omega, Год журнала: 2024, Номер 10(1), С. 1610 - 1623

Опубликована: Дек. 27, 2024

Nickel-based metal–organic frameworks, denoted as three-dimensional nickel trimesic acid frameworks (3D Ni-TMAF), are gaining significant attention for their application in nonenzymatic glucose sensing due to unique properties. Ni-MOFs possess a high surface area, tunable pore structures, and excellent electrochemical activity, which makes them ideal facilitating electron transfer enhancing the catalytic oxidation of glucose. This research describes new enzyme-mimic biosensor biological solutions that utilizes 3D nanospheres Ni-TMAF created layer-by-layer on highly porous substrate. The based represent promising approach, leveraging properties provide efficient, stable, potentially more cost-effective alternatives traditional sensors. MOF is synthesized from (TMA) nitrate hexahydrate through solvothermal reaction process. resulting crystalline structure with large area numerous active sites toward indeed known electrocatalytic particularly context under alkaline conditions. centers facilitate efficient redox reactions, leading sensitivity 203.89 μA μM–1 cm–2 lower LOD 0.33 μM fast response time <3 s Their stability, cost-effectiveness, performance make material

Язык: Английский

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Enhanced Visible-Light Photocatalytic Performance of a CoMo-MOF@BGCN Composite via Efficient Type-II Heterojunction for Effective Degradation of Hazardous Dye

Journal of Molecular Structure, Год журнала: 2024, Номер unknown, С. 141287 - 141287

Опубликована: Дек. 1, 2024

Язык: Английский

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