Graphitic carbon nitride-embedded MXene tungsten carbide nanoflakes for sensitive detection of cytotoxic tinidazole in biological samples

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2025, Номер 171, С. 106072 - 106072

Опубликована: Март 4, 2025

Язык: Английский

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Recent Advances and Challenges in Graphene-Based Electrochemical Biosensors for Food Safety

Analytical Biochemistry, Год журнала: 2025, Номер unknown, С. 115866 - 115866

Опубликована: Апрель 1, 2025

Язык: Английский

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Rationally designed flower like NiO/NiCo2O4 dual-phase composite for ultrasensitive detection of roxarsone sensor

Journal of environmental chemical engineering, Год журнала: 2025, Номер 13(3), С. 116830 - 116830

Опубликована: Апрель 27, 2025

Язык: Английский

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Electrochemical determination of Roxarsone using preconcentration-based signal amplification on modified screen-printed electrode

Food Chemistry, Год журнала: 2023, Номер 437, С. 137698 - 137698

Опубликована: Окт. 9, 2023

Язык: Английский

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Synthesis of Gadolinium-Doped Molybdenum Diselenide Nanospheres for Ultrasensitive Electrochemical Determination of Essential Amino Acid in Human Serum and Milk Samples

Journal of The Electrochemical Society, Год журнала: 2023, Номер 170(5), С. 057501 - 057501

Опубликована: Апрель 20, 2023

The electrocatalytic activity and electronic conductivity of 2D transition metal chalcogenides are usually enhanced by as follows the ideal strategy such doping or substitution heterogeneous atoms. Here, a rare Earth ion gadolinium (Gd 3+ ) was doped with MoSe 2 synthesized through hydrothermal method. morphology nanostructure Gd spheres were analyzed under X-ray diffraction, Fourier-transform infrared spectroscopy, photoelectron, High-resolution transmission electron microscopy analysis, Field emission scanning microscopy, energy-dispersive spectroscopy. Furthermore, sphere modified glassy carbon electrode (Gd@MoSe /GCE) used for sensing tryptophan. Gd@MoSe GCE shows remarkable performance tryptophan resulting in linear range (20 nM–220 μ M) low detection limit (6.7 nM). Under optimal condition, developed electrochemical sensor successfully to determine (TRP) blood serum milk samples. biosensing results suggest that is promising electrocatalyst biological food

Язык: Английский

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Sonochemical synthesis of graphene oxide-Ag2O nanozyme as an oxidize-like mimic for the highly sensitive detection of lithium in blood serum

Ultrasonics Sonochemistry, Год журнала: 2024, Номер 108, С. 106960 - 106960

Опубликована: Июнь 17, 2024

Bipolar disorder is commonly treated with lithium carbonate. The concentration of in the blood serum should be closely monitored patients who require long-term therapy. To date, no colorimetric method detecting ions has been reported using nanosensors. We have developed a novel chemosensor based on nanozyme (NZ) to address this clinical need. GO-Ag2O NZs were synthesized by sonochemical and used as nanosensor detect human (Li (I)). characterize NZs, various techniques employed, including XRD, FTIR, TEM, FESEM, EDX, Raman spectroscopy, BET, DLS, Zeta potential, ICP-OES. According TEM FESEM images GO-Ag2O, nanoparticles (NPs) Ag2O are uniformly distributed surface 2D graphene oxide sheets. In addition, silver exhibited cubic morphology an average size 3.5 nm. examined performance aqueous medium that contains Li (I). A test revealed presence ultrasound more sensitive linearity calibration curves' ranges, (I) limit detection (LOD) 0.01 µg/mL. Furthermore, it displayed linear range between 0 12 showed noticeable color changes from green orange after exposure An incubation time two minutes was found most effective for sensing. This innovative approach provides reliable monitoring levels ensuring patient safety during therapy bipolar disorder.

Язык: Английский

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Fe₂O₃/NiO nanocomposites: synthesis, characterization and roxarsone sensing by Fourier transform infrared photoacoustic spectroscopy

New Journal of Chemistry, Год журнала: 2023, Номер 47(27), С. 12806 - 12815

Опубликована: Янв. 1, 2023

Fourier transform infrared photoacoustic spectroscopic sensing of roxarsone using the Fe 2 O 3 /NiO nanocomposite.

Язык: Английский

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Rainwater-borne H2O2 accelerates roxarsone degradation and reduces bioavailability of arsenic in paddy rice soils

Journal of Hazardous Materials, Год журнала: 2024, Номер 478, С. 135633 - 135633

Опубликована: Авг. 23, 2024

Язык: Английский

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Interspersed of Scheelite-Type BaWO₄ Nanoparticles Decorated on CNF for the Electrocatalytic Sensing of Theobromine in Food Products

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(22), С. 25388 - 25399

Опубликована: Ноя. 11, 2024

Methylxanthines (MTX) are purine alkaloids commonly present in the diet. Theobromine (TBR: Theobroma cacao or T. cacao) is a second important metabolism MTX. It naturally occurs nonalcoholic beverages to stimulate central nervous system. When consumed high quantities, it has some negative impacts such as weight gain and addictions. Thus, development of well-organized electrocatalysts that can monitor trace level detection TBR food products urgently required. In this study, simple means synthesizing scheelite-type barium tungstate (BaWO4) nanoparticles integrated into carbon nanofiber (CNF) via sonochemical process discussed. BaWO4@CNF, nanocomposite modified on glassy electrode (GCE), showed better electrocatalytic activity oxidation potential range 0.9–1.6 V. Noteworthy, proposed BaWO4@CNF/GCE sensor exhibited an ultralow detecting limit (LOD: 5.2 nM) with linear 0.01–1726 μM sensitivity 2.52 μA μM–1 cm–2 by different pulse voltammetry (DPV) methods. The been applied for anti-interfering ability, repeatability, stability studies. practical applicability was tested quantitative analysis coffee dark chocolate satisfactory recoveries. Therefore, hybrid provides significant candidate electrochemical public health.

Язык: Английский

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Hierarchical graphene oxide-Ni3S2 quantum dots nanocomposites modified glassy carbon electrode for electrochemical detection of dopamine and tyrosine

Frontiers in Materials, Год журнала: 2023, Номер 10

Опубликована: Авг. 1, 2023

A facile synthetic strategy is demonstrated to generate nickel sulfide quantum dots (Ni 3 S 2 ). The thus formed Ni are assembled onto exfoliated graphene oxide sheets hydrothermally form sulfide-graphene nanocomposite material (GO-Ni microscopic and spectroscopic characterization of the GO-Ni nanocomposites revealed shape, size, crystalline phases, oxidation states (of elements) hybrid material. then coated glassy carbon electrode by drop casting @GCE. modified used detect dopamine tyrosine simultaneously. effect scan rate, analyte concentrations, pH, interfering agents on peak current studied establish a plausible mechanism for oxidizing at @GCE stable weeks ten cycles washing with minimal loss in each cycle. Dopamine concentration as low 12 nM can be detected using system.

Язык: Английский

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