Thiourea‐Modified Multiwalled Carbon Nanotubes as Electrochemical Biosensor for Ultra‐Precise Detection of Dopamine

ChemNanoMat, Journal Year: 2024, Volume and Issue: 10(6)

Published: April 16, 2024

Abstract Functionalized multi‐walled carbon nanotubes (MWCNTs) have enticed remarkable attention in the field of electrochemical sensing applications. Dopamine (DA) is a monoamine neurotransmitter released brain acting as chemical messenger that communicates messages between nerve cells and rest body. Therefore, there significant technological urge for development sensors DA body fluids. In this context, nitrogen‐functionalized MWCNTs (TM‐CNT600) were fabricated by thermal annealing carboxylic acid functionalized with thiourea at 600 °C under N 2 atmosphere. The XPS spectrum reveals presence nitrogen‐containing functionalities as‐prepared TM‐CNT600. FTIR results show −OH, C−N C−S functional groups. further corroborates quantifies predominant groups material. material was investigated potential sensor detection dopamine (DA). case TM‐CNT600/GCE, linear relationship concentration observed range 10.7–24.2 μM limit (LOD) 1.42 using sweep voltammetry (LSV). These highlight TM‐CNT600 modified GCE an efficient

Language: Английский

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Effects of AgO incorporation with 2D rGO nanocomposite characteristics and its beneficial electrochemical detection of acetaminophen

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 164, P. 112453 - 112453

Published: April 25, 2024

Language: Английский

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Fabrication of M-type barium ferrite (BaFe12O19) grafted reduced graphene oxide (BF@rGO) nanocomposite using ethyl imidazolium lactate ionic-liquid: An effective electrode modifier for caffeic acid sensor

Ceramics International, Journal Year: 2024, Volume and Issue: 50(11), P. 18708 - 18717

Published: Feb. 29, 2024

Language: Английский

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Coconut Husk Waste‐Derived Nitrogen‐Doped Mesoporous Carbon Nanomaterial as an Efficient and Sustainable Supercapacitor

Energy Technology, Journal Year: 2024, Volume and Issue: 12(7)

Published: May 15, 2024

Sustainability and waste management are equally important in the era of growing energy demands. This study focuses on integrating strategies that balance efficiency, reduce generation, promote sustainable practices. The coconut husk is processed converted into mesoporous carbon nanomaterial through hydrothermal‐assisted thermal annealing. Nitrogen doped melamine to increase reactive sites hence catalytic activity. sphere‐like morphology was confirmed by field emission scanning electron microscope high‐resolution transmission images indicate a dot‐like structure. high Brunauer‐Emmett‐Teller surface area achieved for this nanostructure 1383.40 m 2 g −1 , with pore width volume at 2.2660 nm 0.2995 cm 3 respectively. as‐synthesized explored its electrochemical performance as electrodes supercapacitor application, where materials achieve wide potential window (−1.4 1.4 V) minimum time 50 s current density 0.6 A . Moreover, highest specific capacitance obtained from 115.39 F V density, power coulombic efficiency set parameter 62.31 Wh Kg 1166.4 W 79.61%, Finally, practical device assembled nanomaterial, red LED bulb glows after 1 min charging.

Language: Английский

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Nitrogen Functionalised Biomass Derived Mesoporous Carbon Nanomaterials for Electrochemical Detection of Lead (II) Ions

Heliyon, Journal Year: 2024, Volume and Issue: 10(20), P. e39090 - e39090

Published: Oct. 1, 2024

Highlights•Metal-free sustainable electrochemical sensor is developed.•N and S-rich biomass-derived mesoporous carbon successfully developed through hydrothermal carbonization.•Mesoporous material used for the detection of lead DPASV.•It shows an excellent limit 22 nM.AbstractThis study has explored solution after designing economical metal-free nanocarbon selective sensing lead. The nitrogen sulfur-rich designed a facile hydrothermal-assisted thermal annealing method. high-temperature treatment gave unique dot decorated layered morphology, while sulfur precursor thiourea melamine strengthened nanomaterial stability, sensitivity, selectivity toward metal ions. high specific surface area viz., 1671.93 m2/g with pore width volume 2.02 nm 0.476 cm3/g enhanced conductivity as-synthesized sensor, which helps in increasing sensitivity was also confirmed cyclic voltammetry, where 80 % increment current observed case modified electrode when compared bare GCE. differential pulse normal voltammetry anodic stripping were performed to calculate limit, nM obtained from DPASV technique. Moreover, tested detecting tap water. nanocomposite highly efficient This will motivate researchers engineer devices pollutants.

Language: Английский

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Catalytic Engineering of Waste Biomass‐Derived Nano‐Carbon for Ultra‐Low Detection of Lead and Mercury Ions

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(13)

Published: April 1, 2025

Abstract Sensor‐based technologies are driving a revolution in environmental monitoring, enabling precise measurement and effective pollutant management. Accurate quantification of pollutants is the foundation upon which remediation, protection, policy enforcement solutions built. These ensure that management strategies data‐driven, precise, responsive to real‐time conditions. This study has explored sustainable yet development sensor from parthenium hysterophorus waste biomass for detecting lead mercury ions. The catalytic graphitization process effectively converted plant into graphitized carbon. A metal catalyst specific functional groups introduced enhance conductivity sensitivity nanocomposite. porous network graphene‐like nanostructure, along with high crystallinity, successfully developed, where presence silver, nitrogen, sulfur, oxygen confirmed through EDS XPS. FE‐SEM images represent layered structure nanocomposite, while TEM indicated carbon distribution silver nanoparticles on it. XRD spectra have shown clear peak at 26°, indicates architecture crystallinity. CV was also conducted redox behavior DPASV Nanocomposite shows selectivity mixed solution. It detection limits 600 300 nM At same time, real sample showed good response, limit 400 obtained tap water. RSD calculated after studying response three different electrodes 3.2%. nanocomposite stability even 60 days storage. paves way developing nanomaterials sensing heavy

Language: Английский

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Hydrothermal engineering of WS2/N-rGO heterostructure as an efficient electrochemical sensor for the detection of dopamine

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113733 - 113733

Published: April 1, 2025

Language: Английский

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Facile Synthesis of Fe-Doped, Algae Residue-Derived Carbon Aerogels for Electrochemical Dopamine Biosensors

Sensors, Journal Year: 2024, Volume and Issue: 24(9), P. 2787 - 2787

Published: April 27, 2024

An abnormal level of dopamine (DA), a kind neurotransmitter, correlates with series diseases, including Parkinson’s disease, Willis-Ekbom attention deficit hyperactivity disorder, and schizophrenia. Hence, it is imperative to achieve precise, rapid detection method in clinical medicine. In this study, we synthesized nanocomposite carbon aerogels (CAs) doped iron carbide, based on algae residue-derived biomass materials, using Fe(NO3)3 as the source. The modified glassy electrode (GCE) for DA detection, denoted CAs-Fe/GCE, was prepared through surface modification composite material. X-ray photoelectron spectroscopy diffraction characterization confirmed successful doping into as-prepared CAs. Additionally, electrochemical behavior investigated results demonstrate that addition CAs-Fe promoted electron transfer rate, thereby enhancing their sensing performance. fabricated biosensor exhibits an accurate concentration within range 0.01~200 µM, limit 0.0033 µM. Furthermore, proposed validated real samples, showing its high applicability beverages.

Language: Английский

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Synergetic effect of optimized β-Zn(OH)2/ZnO heterostructure towards electrochemical dopamine detection

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1002, P. 175184 - 175184

Published: June 13, 2024

Language: Английский

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Highly sensitive, selective and rapid in-vitro electrochemical sensing of dopamine achieved on oxygen deficient nickel oxide/partially reduced graphene oxide (NiOx/p-rGO) nanocomposite platform

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: unknown, P. 113575 - 113575

Published: Nov. 1, 2024

Language: Английский

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