2D/2D porous Co3O4/rGO nanosheets act as an electrochemical sensor for voltammetric tryptophan detection

Diamond and Related Materials, Год журнала: 2023, Номер 135, С. 109811 - 109811

Опубликована: Фев. 25, 2023

Язык: Английский

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Facile preparation of metal-free graphitic-like carbon nitride/graphene oxide composite for simultaneous determination of uric acid and dopamine

Microchemical Journal, Год журнала: 2023, Номер 190, С. 108726 - 108726

Опубликована: Апрель 5, 2023

Язык: Английский

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Highly stable electrochemical sensing platform for the selective determination of pefloxacin in food samples based on a molecularly imprinted-polymer-coated gold nanoparticle/black phosphorus nanocomposite

Food Chemistry, Год журнала: 2023, Номер 436, С. 137753 - 137753

Опубликована: Окт. 15, 2023

Язык: Английский

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UiO-66/Carboxylated Multiwalled Carbon Nanotube Composites for Highly Efficient and Stable Voltammetric Sensors for Gatifloxacin

ACS Applied Nano Materials, Год журнала: 2023, Номер 6(20), С. 19403 - 19413

Опубликована: Окт. 12, 2023

The excessive use of gatifloxacin (GAT) can seriously pollute the environment and damage human health. Therefore, reliable detection its concentration is essential for environmental protection physical Herein, an efficient stable voltammetric sensor based on zirconium-based metal–organic framework/carboxylated multiwalled nanotube nanocomposites (UiO-66/MWCNT-COOH) was constructed determination GAT. morphologies, microstructures, electrochemical properties UiO-66/MWCNT-COOH were investigated by using various microscopic, spectroscopic, techniques. showed good electrocatalytic activity GAT oxidation with remarkable response signals, which primarily attributed to synergistic effect from UiO-66 MWCNT-COOH. Electrochemical kinetics studies revealed that irreversible diffusion-limited reaction involving two protons electrons. anodic peak current linearly correlated in range 0.05 10 μM a low limit 0.0075 μM. Moreover, demonstrated high selectivity, reproducibility, repeatability as well extraordinary long-term stability (at least 7 weeks). proposed reliably detected trace effluent, milk, serum, eye drops satisfactory recoveries. Together outstanding merits such cost, robust response, short assay time, sensitivity, shows enormous prospects situ multiple antibiotics.

Язык: Английский

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Lamellar α-Zirconium Phosphate Nanoparticles Supported on N-Doped Graphene Nanosheets as Electrocatalysts for the Detection of Levofloxacin

ACS Applied Nano Materials, Год журнала: 2023, Номер 6(18), С. 17040 - 17052

Опубликована: Сен. 6, 2023

The excessive use of levofloxacin (LEV) can lead to significant environmental pollution, while also damaging human health. accurate detection its concentration is therefore essential protect both the environment and Herein, we report simple synthesis α-zirconium phosphate supported on nitrogen-doped graphene nanosheets (α-ZrP/NG) application in voltammetric determination trace LEV real samples. surface morphology, microstructure, electrochemical properties α-ZrP/NG were investigated by microscopic spectroscopic techniques. analytical parameters, including accumulation potential, time, loading volume, buffer pH, optimized improve electrocatalytic sensing performance α-ZrP/NG. Owing synergetic interaction between α-ZrP NG, proposed sensor exhibited an excellent activity for electrical oxidation LEV. In range 0.01–5.0 μM, anodic peak current increased linearly with increase concentration, limit was 2.6 nmol L–1. Finally, levels wastewater, serum, milk, eye drop samples determined using system combined a glassy carbon electrode give satisfactory recoveries (98.48–103.2%), indicating that prepared demonstrates promise environmental, food, drug monitoring applications.

Язык: Английский

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Label-Free Electrochemical Biosensor Platforms for Cancer Diagnosis: Recent Achievements and Challenges

Biosensors, Год журнала: 2023, Номер 13(3), С. 333 - 333

Опубликована: Март 1, 2023

With its fatal effects, cancer is still one of the most important diseases today’s world. The underlying fact behind this scenario probably due to late diagnosis. That why necessity for detection different types obvious. Cancer studies including diagnosis and therapy have been laborious tasks. Since early significantly affects following steps, very important. Despite researchers’ best efforts, accurate rapid challenging difficult investigate. It known that electrochemical techniques successfully adapted into field. Electrochemical sensor platforms are brought together with excellent selectivity biosensing elements, such as nucleic acids, aptamers or antibodies, put forth successful outputs. One remarkable achievements these biomolecule-attached sensors their lack need additional labeling which bring extra burdens interference effects demanding modification protocols. In review, we aim outline label-free use methods acquire signals. classification sensing generally presented according recognition element, recent by using attractive substrates described in detail. addition, current challenges discussed.

Язык: Английский

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Deep Eutectic Solvent-Mediated Synthesis of Spinel Zinc Chromite Nanoparticles: A Simple Label-Free Electrochemical Sensor for Dopamine and Ascorbic Acid

ACS Applied Nano Materials, Год журнала: 2023, Номер 6(19), С. 17593 - 17602

Опубликована: Сен. 20, 2023

Dopamine (DA) and ascorbic acid (AA) abnormal concentrations are intimately associated with many disorders, making the detection of these tiny molecules essential for keeping track metabolic processes preserving health. Due to its practicality from an economic standpoint, great sensitivity, outstanding selectivity, electrochemical is a common technique detecting compounds. This technique's creation use equally crucial cannot be disregarded. their high surface-to-volume ratio distinctive characteristics, nanomaterials well-suited various applications. In this study, we synthesized ZnCr2O4 nanoparticles using easy hydrothermal method. Given difficulty synthesizing importance in modern society, our research concentrated on field. Based statistical analysis, results consistent fabrication approach's anticipated results. aims create sensors that detect AA DA real time nanocatalysts. The constructed sensor's oxidation potential also significantly lower than recently published (Epa = 0.25 V) 0.45 V). concentration range 0.001–139 μM 0.01–126 μM, suggested ZnCr2O4/GCE sensing medium was used sensitivity. For DA, sensor demonstrated limit 0.18 nM 12.56 nM. Furthermore, excellent tool technical feasibility study because chosen possible interferences did not affect sensing.

Язык: Английский

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A facile and efficient voltammetric sensor for marbofloxacin detection based on zirconium-based metal-organic framework UiO-66/nitrogen-doped graphene nanocomposite

Microchemical Journal, Год журнала: 2024, Номер 201, С. 110673 - 110673

Опубликована: Май 1, 2024

Язык: Английский

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Deep eutectic solvent-mediated synthesis of ZnCo2O4/MWCNT-COOH: Investigation of electrocatalytic activity for gatifloxacin detection

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер 699, С. 134713 - 134713

Опубликована: Июль 3, 2024

Язык: Английский

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A voltammetric sensor based on praseodymium oxide nanoparticles immobilized on tetrahedral boronate esters for favipiravir used in the treatment of COVID-19

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2025, Номер 169, С. 105975 - 105975

Опубликована: Янв. 25, 2025

Язык: Английский

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