Microwave-assisted facile synthesis of layered reduced graphene oxide-tungsten disulfide sandwiched Fe3O4 nanocomposite as effective and sensitive sensor for detection of dopamine

Singh, Dalwinder; Kalia, Shiwani; Kumar, Rajesh; Thakur, Nagesh; Singh, Rajesh Kumar

doi:10.1016/j.matchemphys.2022.126283

Cited by 43 publications

(5 citation statements)

References 51 publications

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“…The phase development, structural properties, and surface morphology of the NC showed that the Fe 3 O 4 NPs positioned between the separated layers of RGO and WS 2 NSs inhibited NP agglomeration and prevented the 2D layered materials from becoming stacked once more. The DL of the RGO-WS 2 @Fe 3 O 4 sensor was 2.74 µM [ 106 ]. As a result, it was envisaged that a cost-effective microwave-assisted method for RGO corresponding with other inorganic coated materials to develop EC devices for the determination of biotic and pharmacological samples can be established.…”

Section: Gr-based Ec Sensors For Bioanalytes Detectionmentioning

confidence: 99%

The Roadmap of Graphene-Based Sensors: Electrochemical Methods for Bioanalytical Applications

et al. 2022

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Graphene (GR) has engrossed immense research attention as an emerging carbon material owing to its enthralling electrochemical (EC) and physical properties. Herein, we debate the role of GR-based nanomaterials (NMs) in refining EC sensing performance toward bioanalytes detection. Following the introduction, we briefly discuss the GR fabrication, properties, application as electrode materials, the principle of EC sensing system, and the importance of bioanalytes detection in early disease diagnosis. Along with the brief description of GR-derivatives, simulation, and doping, classification of GR-based EC sensors such as cancer biomarkers, neurotransmitters, DNA sensors, immunosensors, and various other bioanalytes detection is provided. The working mechanism of topical GR-based EC sensors, advantages, and real-time analysis of these along with details of analytical merit of figures for EC sensors are discussed. Last, we have concluded the review by providing some suggestions to overcome the existing downsides of GR-based sensors and future outlook. The advancement of electrochemistry, nanotechnology, and point-of-care (POC) devices could offer the next generation of precise, sensitive, and reliable EC sensors.

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Section: Gr-based Ec Sensors For Bioanalytes Detectionmentioning

confidence: 99%

The Roadmap of Graphene-Based Sensors: Electrochemical Methods for Bioanalytical Applications

et al. 2022

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“…Of the various NTs, dopamine (DA) is most studied because their abnormal transmission in the extracellular fluid causes mental disorders and other critical diseases including schizophrenia, Parkinson's disease, attention deficit hyperactivity, Huntington's disease and obesity. [2,3] The central nervous system [4] produces dopamine, a key catecholamine neurotransmitter, by first hydroxylating L-tyrosine and then decarboxylating it using L-aromatic amino acid decarboxylase.…”

Section: Introductionmentioning

confidence: 99%

“…As predicted, numerous approaches for detecting the number of NTs in human and animal systems for the diagnosis and treatment of the highlighted illnesses have been deployed, each with their benefits as well as drawbacks. Several analytical techniques including high-performance liquid chromatography, [4] ion-exchange chromatography, colorimetry, [1] mass spectrometry, [7] chemiluminescence [8] and capillary electrophoresis [9] have been used for the quantitative determination of DA. However, these methods require complex sample pretreatment, expensive instrumentation, highly skilled operators and long analysis time.…”

Section: Introductionmentioning

confidence: 99%

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

Jaryal,

Kumar,

Singh

et al. 2024

ChemNanoMat

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Functionalized multi‐walled carbon nanotubes (MWCNTs) have enticed remarkable attention in the field of electrochemical sensing applications. Dopamine (DA) is a monoamine neurotransmitter released in the brain acting as a chemical messenger that communicates messages between nerve cells and the rest of the body. Therefore, there is a significant technological urge for the development of electrochemical sensors for DA in body fluids. In this context, nitrogen‐functionalized MWCNTs (TM‐CNT600) were fabricated by thermal annealing of carboxylic acid functionalized MWCNTs with thiourea at 600 oC under N2 atmosphere. The XPS spectrum reveals the presence of nitrogen‐containing functionalities in the as‐prepared TM‐CNT600. FTIR results show the presence of ‐OH, C‐N and C‐S functional groups. XPS further corroborates the FTIR results and quantifies the predominant functional groups in as‐prepared material. The material was investigated as a potential electrochemical sensor for the detection of dopamine (DA). In the case of TM‐CNT600/GCE, a linear relationship for DA concentration was observed in the range of 10.7 ‐ 24.2 μM with the limit of detection (LOD) of 1.42 μM using linear sweep voltammetry (LSV). These results highlight the potential of TM‐CNT600 modified GCE as an efficient sensor for the electrochemical detection of DA in body fluids.

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“…8 Various kinds of nanomaterials (0D-3D) have been utilized to enhance the sensor selectivity, sensitivity and limit of detection amongst various metrics. With the incorporation of these nanostructures into electrochemical, 9,10 optical spectroscopy, high-performance liquid chromatography (HPLC) and gas/liquid chromatography-mass spectrometry (GC-MS) techniques, the analytical features of these techniques are greatly improved. 11 For instance, in a report rGO nanosheets were decorated with Pd NPs by utilizing microwave-assisted in situ reduction and exfoliation methods in order to examine their hydrogen detection ability under various conditions.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of molybdenum nanoclusters from Vitex negundo leaves for sensing epinephrine in a pharmaceutical composition

et al. 2023

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Microwave-assisted facile synthesis of layered reduced graphene oxide-tungsten disulfide sandwiched Fe3O4 nanocomposite as effective and sensitive sensor for detection of dopamine

Cited by 43 publications

References 51 publications

The Roadmap of Graphene-Based Sensors: Electrochemical Methods for Bioanalytical Applications

The Roadmap of Graphene-Based Sensors: Electrochemical Methods for Bioanalytical Applications

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

Synthesis of molybdenum nanoclusters from Vitex negundo leaves for sensing epinephrine in a pharmaceutical composition

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