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, Journal Year: 2023, Volume and Issue: 6(19), P. 17593 - 17602

Published: Sept. 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.

Language: 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, Journal Year: 2024, Volume and Issue: 201, P. 110673 - 110673

Published: May 1, 2024

Language: Английский

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Flower-like 3D MoS2 microsphere/2D C3N4 nanosheet composite for highly sensitive electrochemical sensing of nitrite

Food Chemistry, Journal Year: 2023, Volume and Issue: 430, P. 137027 - 137027

Published: July 27, 2023

Language: Английский

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Novel nitrogen‐rich anchored nickel (II) phthalocyanine with composite of multiwalled carbon nanotubes on modified glassy carbon electrode: Sensitive and selective electrocatalytic activity of nitrite

Applied Organometallic Chemistry, Journal Year: 2023, Volume and Issue: 38(1)

Published: Nov. 20, 2023

This work describes the synthesis of novel nickel tetra substituted 6‐bromobenzothiazole carboxamide (II) phthalocyanine (NiTBBTCAPc) and confirmed by spectroscopic‐microscopic methods as well electrochemical analysis. The oxidation nitrite was studied on NiTBBTCAPc‐multiwalled carbon nanotube (MWCNTs)/glassy electrode (GCE) due to its better electron transferring ability than bare GCE NiTBBTCAPc/GCE. As there is acceleration in surface area multiwalled nanotubes, a cyclic voltammetry (CV), differential pulse (DPV), amperometric techniques utilized for sensor were developed. exhibited fast response towards with detection limit 3.012 nM linear concentration range 50–900 CV method. fabricated shows excellent electrocatalytic activity compared modified Pc composite MWCNTs nitrite. NiTBBTCAPc‐MWCNTs/GCE good repeatability, stability, high selectivity even presence excess ascorbic acid (AA), dopamine (DA), uric (UA), paracetamol (PA), glucose, Pb (II), Cd Ca Mg (II). Finally, usage practical applications, employed achieve quantitative drinking water cabbage vegetable samples, respectively.

Language: Английский

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Electrochemical Sensing of Uric Acid with Zinc Oxide Nanorods Decorated with Copper Oxide Nanoseeds

ACS Applied Nano Materials, Journal Year: 2023, Volume and Issue: 6(18), P. 16615 - 16624

Published: Aug. 29, 2023

The use of hybrid nanostructured nanomaterials in sensor development has the potential to overcome sensitivity issue due combination different nanoscale features desired that are accumulated together and offer entirely characteristics. sensitive quantification biomolecules is required for early disease diagnosis. Herein, a (zinc oxide nanorods modified with copper nanoseeds (ZnO NRs-CuO NSs)) nanomaterial-integrated detects uric acid (UA) reported. A low-temperature solution-based method was described ZnO NR NR-CuO NS nanomaterial syntheses. resulted ultra-high (1477.88 μA/mM cm2) toward UA detection using differential pulse voltammetry (DPV) technique. DPV ∼7.7 times better compared cyclic (CV)-measured (187.32 cm2). surface modification NRs CuO "hybrid nanostructures" showed significant impact synergistic effect enhanced sensing performance. Furthermore, selectivity, stability, fabrication reproducibility, applicability real sample other crucial factors this nanomaterial-based sensor.

Language: Английский

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Electrochemical Sensing of Uric Acid: Methods and Recent Materials

Journal of The Electrochemical Society, Journal Year: 2024, Volume and Issue: 171(5), P. 057505 - 057505

Published: April 29, 2024

Uric acid (UA) is an important biomarker in blood to diagnosis diseases linked with hyperuricemia. Although several detection methods exist for UA sensing, electrochemical method has emerged as a promising alternative. For effective performance of biosensor, the choice electroactive material plays crucial role. The developed electrodes are enzymatic and non-enzymatic modified nano-structures metal oxides, ferrites carbon-based materials. Several combinations nanocomposites using oxides compounds show results biosensor applications. This attributed its functional groups, higher surface area porous nature that can improve sensing it requires only quick-time processing inexpensive direct methods. uses anodic peak current which analytical signal sense oxidation UA. technique paves new way make point-of-detection devices near future. It could be next generation non-invasive analysis food hygiene well biomedical clinical review focuses on materials used discusses application different techniques detection.

Language: Английский

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Novel Electrochemical Sensor Based on Cu-MOF/MWCNT-COOH for the Simultaneous Detection of Ascorbic Acid and Dopamine

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

By utilizing carboxylated multiwalled carbon nanotubes (MWCNT-COOH) to strengthen the interaction between electrode and analytes improve conductivity of composite material in conjunction with superior catalytic properties copper-based metal-organic framework (MOFs), a novel electrochemical sensor was fabricated from Cu-MOF/MWCNT-COOH composite, specifically designed for simultaneous distinct detection ascorbic acid (AA) dopamine (DA). Electrochemical analyses were conducted on innovative through both CV DPV, revealing unique behaviors AA DA. The not only showed exceptional electrocatalytic but also distinguished itself by its broad dynamic response ranges, covering concentrations 3 1800 μM 2 180 DA, limits (S/N = 3) 3.00 0.32 Furthermore, this platform exhibited robust reproducibility selectivity. Examinations serum samples yielded recovery rates DA which 101.9% 102.1%, respectively, confirming sensor's capability perform reliably under varied biological conditions. findings confirm potential proposed method simultaneous, sensitive, reliable In conclusion, has promising practical applications.

Language: Английский

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Enhanced simultaneous voltammetric detection of dopamine and uric acid using Au@Ni‐metal–organic framework‐modified electrode

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 38(4)

Published: Jan. 13, 2024

A novel conductive Ni‐based metal–organic framework (MOF) decorated with Au nanoparticles (AuNPs; Au@Ni‐MOF) was developed and used as a drop‐cast thin‐film electrode to individually simultaneously quantify dopamine (DA) uric acid (UA). The Ni‐MOF composite synthesized using an in situ growth strategy involving the of [Ni 3 (BTC) 2 (H O) 6 ]n (BTC = 1,3,5‐benzenetricarboxylate) coordinatively unsaturated Ni (II) sites. powder then mixed AuNP solution produce Au@Ni‐MOF hybrid material. material employed surface modifier for screen‐printed carbon electrode, its efficacy detection DA UA assessed differential pulse voltammetry (DPV) cyclic voltammetry. sensor exhibited remarkable sensitivity, achieving low limits approximately 0.027 0.028 μM (S/N 3) simultaneous quantification UA, respectively. extensive linear range 0.5 1 mM, coupled excellent sensitivities 1.43 1.35 μA −1 cm −2 , Furthermore, performance human serum urine samples successfully validated DPV, which revealed outstanding recovery rates 93.8–105.0% minimal relative standard deviation below 3%. Moreover, exceptional dispersion stability, high selectivity, were attributed well‐arranged combination AuNPs Ni‐MOFs, enabling use non‐enzymatic sensing applications targeting UA.

Language: Английский

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Non-enzymatic biosensor based on F,S-doped carbon dots/copper nanoarchitecture applied in the simultaneous electrochemical determination of NADH, dopamine, and uric acid in plasma

The Analyst, Journal Year: 2024, Volume and Issue: 149(9), P. 2728 - 2737

Published: Jan. 1, 2024

This work presents the synthesis and characterization of an innovative F,S-doped carbon dots/CuONPs hybrid nanostructure obtained by a direct mixture between dots electrochemically copper nitrate alcoholic solution. The nanostructures synthesized were characterized absorption spectroscopy in Ultraviolet region (UV-vis), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron (XPS), different electrochemical techniques. fluoride sulfur-doped used to prepare non-enzymatic biosensor on printed electrode, exhibiting excellent electrocatalytic activity for simultaneous determination NADH, dopamine, uric acid presence ascorbic with detection limit 20, 80, 400 nmol L

Language: Английский

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Melamine-Based Nanocomposites for Selective Dopamine and Uric Acid Sensing

ACS Applied Polymer Materials, Journal Year: 2023, Volume and Issue: 5(7), P. 5609 - 5619

Published: June 14, 2023

The formation process of carbon dots (CDs) is mostly polymerization; recently, studies on the polymerization families (graphene oxide and C60) have been receiving exciting attention. Herein, a protocol prepolymerization electropolymerization monomer (melamine) nanomonomer (CDs fixed melamine residues) was proposed to prepare nanocomposite for selective dopamine (DA) uric acid (UA) sensing. prepared by hydrothermal melamine, then formed in situ CDs/carboxylated multiwalled nanotubes (MWCNTs-COOH)-modified glassy electrode (GCE) KCl solution. Scanning electron microscopy, transmission energy-dispersive spectroscopy, X-ray diffraction, Fourier transform infrared cyclic voltammetry, electrochemical impedance differential pulse voltammetry were used characterize properties nanocomposite. Under optimal conditions, sensor shows selectivity wide linear range from 0.1 10 μM DA 200 UA, with detection limit 0.023 0.064 (S/N = 3) presence AA, respectively. In addition, also applied selectively test UA 500 μmol/L AA real samples satisfactory recovery.

Language: Английский

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