A novel bifunctional electrochemical nanosensor for simultaneous detection of glucose and insulin based on NiO/Co3O4@CuAl LDH-MWCNT nanocomposite-modified carbon paste electrode

Microchemical Journal, Год журнала: 2024, Номер 201, С. 110644 - 110644

Опубликована: Апрель 27, 2024

Язык: Английский

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A Surfactant-Electropolymer modified dual sensor for the monitoring of norepinephrine at nanomolar levels in biological samples and pharmaceutical formulations

Materials Chemistry and Physics, Год журнала: 2024, Номер 318, С. 129266 - 129266

Опубликована: Апрель 4, 2024

Язык: Английский

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Polyamide/silica/sodium alginate in-situ composite: Synthesis and application in electrochemical probing for Pb2+/Cd2+

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 139425 - 139425

Опубликована: Янв. 1, 2025

Язык: Английский

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Bifunctional ZIF-8/carbon black modified MXene with honeycomb sandwich structure for simultaneous electrochemical sensing of hydroquinone and catechol

Talanta, Год журнала: 2025, Номер 288, С. 127721 - 127721

Опубликована: Фев. 11, 2025

Язык: Английский

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Nickel Ferrite-based Graphite-paste Electrochemical Sensor for Detection of Paracetamol and Dopamine Molecules

Journal of the Indian Chemical Society, Год журнала: 2025, Номер unknown, С. 101633 - 101633

Опубликована: Фев. 1, 2025

Язык: Английский

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Ultrasensitive Electrochemical Aptasensor for Alpha‐Fetoprotein Detection Based on Cadmium Telluride/Cadmium Selenide/Polyaniline‐Cosensitized Structure

Electroanalysis, Год журнала: 2025, Номер 37(3)

Опубликована: Март 1, 2025

In this paper, a water‐soluble highly electrochemical signal cadmium telluride (CdTe)/cadmium selenide (CdSe)/polyaniline nanocomposite was developed through fast and convenient method, then the nanocomposite‐modified glassy carbon electrode prepared for determination of alpha‐fetoprotein (AFP). This aptasensor constructed by covalently immobilizing NH 2 ‐functionalized AFP‐specific aptamer on with plenty carboxylic groups. biosensor via layer‐by‐layer method could evidently increase steric hindrance sensing effectively depress electron transfer, leading to obviously decreased current intensity. The ultrahigh sensitivity immunoassay is derived from two primary reasons as follows. First, CdTe/CdSe multiple‐sensitized cosensitized structure maximize speed charge transfer processes between electrodes electroactive species, dramatically promote inhibit electron–hole recombination, resulting in significantly enhanced intensity electrode. Second, electrocatalytic oxidation K 3 Fe(CN) 6 , which makes change lower‐energy higher‐energy states (CdTe/CdSe QDs)*, reduces activation energy reaction QDs)* more likely oxidize, accelerating electrons. Scanning microscope, transmission X‐ray photoelectron spectroscopy were used characterize material. Electrochemical impedance observe loading process Differential pulse voltammetry measurement. immunosensor exhibited wide linear range 1.0 10.0 μg/mL target AFP detection, low detection limit pg/mL (S/N = 3). To evaluate analytical reliability, reproducibility, specificity, stability, proposed applied human AFP‐spiked serum samples, acceptable results obtained, indicating that can be readily extended other bioaffinity assays clinical or environmental significance.

Язык: Английский

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Graphene oxide functionalized organosilanes for electrochemical detection of uric acid in urine and water

Materials Chemistry and Physics, Год журнала: 2024, Номер 319, С. 129347 - 129347

Опубликована: Апрель 16, 2024

Язык: Английский

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Synthesis of nickel-sphere coated Ni-Mn layer for efficient electrochemical detection of urea

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Июнь 27, 2024

Abstract Using a trustworthy electrochemical sensor in the detection of urea real blood samples received great attention these days. A thin layer nickel-coated nickel-manganese (Ni@NiMn) is electrodeposited on glassy carbon electrode (GC) (Ni@NiMn/GC) surface and used to construct for detection. Whereas, electrodeposition considered as strong technique controllable synthesis nanoparticles. Thus, X-ray diffraction (XRD), atomic force microscope (AFM), scanning electron (SEM) techniques were characterize produced electrode. AFM SEM pictures revealed additional details about morphology, which homogenous smooth coating. Furthermore, research was carried out alkaline medium utilizing various methods, including cyclic voltammetry (CV), chronoamperometry (CA), impedance spectroscopy (EIS). The investigations showed that had good performance, high stability effective charge transfer capabilities. structural, morphological, characteristics Ni@NiMn/GC electrodes well understood using analytical techniques. limit (LOD) equal 0.0187 µM linear range 1.0–10 mM urea. examine efficiency prepared sensor. Otherwise, anti-interfering ability modified catalyst examined toward interfering species.

Язык: Английский

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Poly-Methionine/Graphitic Carbon Nitride Modified Screen-Printed Electrodes: A Metal-Free, Bio-Interface for Tryptophan Sensing

Materials Chemistry and Physics, Год журнала: 2024, Номер 328, С. 129941 - 129941

Опубликована: Сен. 10, 2024

Язык: Английский

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Design and Fabrication of NiMn Layered Double Hydroxide/Reduced Graphene Oxide as Electrochemical Sensor for Simultaneous Detection of Ascorbic Acid, Dopamine and Uric Acid

Journal of Inorganic and Organometallic Polymers and Materials, Год журнала: 2024, Номер 34(8), С. 3660 - 3674

Опубликована: Март 21, 2024

Язык: Английский

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