Fabrication of S-MoSe2/NSG/Au/MIPs imprinted composites for electrochemical detection of dopamine based on synergistic effect

Zang, Yu-jiao; Nie, Jing; He, Bin; Yin, Wei; Zheng, Jie; Hou, Changjun; Huo, Danqun; Yang, Mei; Liu, Fangmei; Sun, Qiaoqian; Yan-ling, Qin; Fa, Huanbao

doi:10.1016/j.microc.2020.104845

Cited by 22 publications

(7 citation statements)

References 43 publications

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“…Various layered Mo materials-modified electrodes have been proposed for this purpose [ 76 , 77 , 78 , 79 , 80 , 81 , 82 ]. Zang et al [ 83 ] synthesized, via a novel hydrothermal route, a few layer S-MoSe 2 /NSG with many rich-edge sites. This work demonstrated that the S-MoSe 2 /NSG/Au/MIPs modified GCE presents good sensitivity to DA (see Figure 8 ).…”

Section: Mo-based 2d Layered Materials For Electrochemical Biomolementioning

confidence: 99%

“…MoS 2 is the preferred and most applied TMDC for these sensors, but wide applications in this field have been also demonstrated for MoSe 2 . Except in a few cases [ 49 , 61 , 75 , 93 ], Mo-based sensors rely on composite materials where the Mo-dichalcogenides are activated mainly with noble metals [ 60 , 83 , 84 , 91 , 97 , 102 , 114 , 115 , 116 ] and carbon nanostructures [ 77 , 78 , 84 , 96 , 97 ], like graphene or graphene oxide. In particular, AuNPs was the most considered noble metal additive, because of the high affinity of gold for the sulfur atom and the other chalcogenide elements, which allows the controlled synthesis of AuNPs on TMDC nanosheets.…”

Section: Current and Future Perspectivesmentioning

confidence: 99%

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Mo-Based Layered Nanostructures for the Electrochemical Sensing of Biomolecules

Zribi

Neri

2020

Sensors

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Mo-based layered nanostructures are two-dimensional (2D) nanomaterials with outstanding characteristics and very promising electrochemical properties. These materials comprise nanosheets of molybdenum (Mo) oxides (MoO2 and MoO3), dichalcogenides (MoS2, MoSe2, MoTe2), and carbides (MoC2), which find application in electrochemical devices for energy storage and generation. In this feature paper, we present the most relevant characteristics of such Mo-based layered compounds and their use as electrode materials in electrochemical sensors. In particular, the aspects related to synthesis methods, structural and electronic characteristics, and the relevant electrochemical properties, together with applications in the specific field of electrochemical biomolecule sensing, are reviewed. The main features, along with the current status, trends, and potentialities for biomedical sensing applications, are described, highlighting the peculiar properties of Mo-based 2D-nanomaterials in this field.

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Section: Mo-based 2d Layered Materials For Electrochemical Biomolementioning

confidence: 99%

Section: Current and Future Perspectivesmentioning

confidence: 99%

Mo-Based Layered Nanostructures for the Electrochemical Sensing of Biomolecules

Zribi

Neri

2020

Sensors

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“…One of these conductive substrates commonly used in sensors is the multi−walled carbon nanotube (MWCNT); the use of this material contributes effectively to accelerating the transfer of electrons and improving the sensitivity of sensors based on MIP [ 35 ]. Polypyrrole (PPy) is a highly conductive polymer that has been successfully applied in the construction of MIP−based sensors [ 36 , 37 , 38 , 39 ]. The combined application of PPy and MWCNT produces a synergistic effect in electrochemical detection analyses, favoring the effective detection of analytes [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

Biomimetic Material for Quantification of Methotrexate Using Sensor Based on Molecularly Imprinted Polypyrrole Film and MWCNT/GCE

et al. 2023

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This study investigates biomimetic sensors for the detection of methotrexate contaminants in environmental samples. Sensors inspired by biological systems are the focus of this biomimetic strategy. Methotrexate is an antimetabolite that is widely used for the treatment of cancer and autoimmune diseases. Due to the widespread use of methotrexate and its rampant disposal into the environment, the residues of this drug are regarded as an emerging contaminant of huge concern, considering that exposure to the contaminant has been found to lead to the inhibition of some essential metabolic processes, posing serious risks to humans and other living beings. In this context, this work aims to quantify methotrexate through the application of a highly efficient biomimetic electrochemical sensor constructed using polypyrrole−based molecularly imprinted polymer (MIP) electrodeposited by cyclic voltammetry on a glassy carbon electrode (GCE) modified with multi−walled carbon nanotubes (MWCNT). The electrodeposited polymeric films were characterized by infrared spectrometry (FTIR), scanning electron microscopy (SEM), and cyclic voltammetry (CV). The analyses conducted using differential pulse voltammetry (DPV) yielded a detection limit of 2.7 × 10−9 mol L−1 for methotrexate, a linear range of 0.01–125 μmol L−1, and a sensitivity of 0.152 μA L mol−1. The results obtained from the analysis of the selectivity of the proposed sensor through the incorporation of interferents in the standard solution pointed to an electrochemical signal decay of only 15.4%. The findings of this study show that the proposed sensor is highly promising and suitable for use in the quantification of methotrexate in environmental samples.

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“…For this reason, electrochemical sensors for measuring DA in biological systems must possess sensitivity and a high degree of selectivity in order to obtain a clear separation of the electrochemical signals of these three compounds [3] [20]. A molecularly imprinted polymer (MIP) is formed in the presence of a target molecule and after extraction, a complementary cavity is formed, with a chemical affinity for the target molecule which favours its adsorption [21] [22]. The high affinity is indeed based on the shape of the imprint as well as of the presence of functional groups with specific interactions with the target molecule.…”

Section: Introductionmentioning

confidence: 99%

A Simple Over-Oxidized Molecularly Imprinted Polypyrrole for the Sensitive Detection of Dopamine in Human Serum

Slimi¹,

Mabrouk²,

Barhoumi³

et al. 2022

JST

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A simple electrochemical sensor for dopamine detection, is based on molecularly imprinted and electropolymerized over-oxidized polypyrrole (OPPy). The MIP-based electrode is obtained by electrocopolymerization of pyrrole (0.1 M) in the presence of the template molecular (dopamine, DA) (10 −3 M). The square wave voltammetry (SWV) is used for the detection of dopamine in buffer solution. The current peak obtained at the MIP electrode was proportional to the logarithm of the DA concentration in the range of 10 −11 to 5 × 10 −8 M with a detection limit of 10 −11 M. The proposed sensor was used for the detection of DA in spiked blood serum, satisfactory results were obtained.

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Fabrication of S-MoSe2/NSG/Au/MIPs imprinted composites for electrochemical detection of dopamine based on synergistic effect

Cited by 22 publications

References 43 publications

Mo-Based Layered Nanostructures for the Electrochemical Sensing of Biomolecules

Mo-Based Layered Nanostructures for the Electrochemical Sensing of Biomolecules

Biomimetic Material for Quantification of Methotrexate Using Sensor Based on Molecularly Imprinted Polypyrrole Film and MWCNT/GCE

A Simple Over-Oxidized Molecularly Imprinted Polypyrrole for the Sensitive Detection of Dopamine in Human Serum

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