Preparation of Molecularly Imprinted Polymer Sensor on Electrochemically Reduced Graphene Oxide Modified Electrode for Selective Probing of Thiabendazole

Li, Jing; Ma, Xinbin; Zhang, Mengyuan; Li, Danping; Yuan, Yong; Fan, Yinming; Xie, Xiaowen; Guo, Li Xin; Zeng, Guolong

doi:10.1149/2.0671902jes

Cited by 26 publications

(6 citation statements)

References 47 publications

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“…The MSGC demonstrated good LOD of 0.1 µM and sensitivity of 7.47 µA/µM.cm 2 . The obtained results have been summarized in Table 1, and are reasonable compared to those in the literature [19,[58][59][60].…”

Section: Sensitivity = S/area Of the Gc Electrode (2)supporting

confidence: 85%

Hydrothermally Synthesized MoS2 as Electrochemical Catalyst for the Fabrication of Thiabendazole Electrochemical Sensor and Dye Sensitized Solar Cells

Khan,

Ahmad,

Raza

et al. 2024

Catalysts

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In this work we reported the hydrothermal preparation of molybdenum disulfide (MoS2). The phase purity and crystalline nature of the synthesized MoS2 were examined via the powder X-ray diffraction method. The surface morphological structure of the MoS2 was examined using scanning electron microscopy and transmission electron microscopy. The specific surface area of the MoS2 was calculated using the Brunauer-Emmett-Teller method. The elemental composition and distribution of the Mo and S elements were determined using energy-dispersive X-ray spectroscopy. The oxidation states of the Mo and S elements were studied through employing X-ray photoelectron spectroscopy. In further studies, we modified the active surface area (3 mm) of the glassy carbon (GC) electrode using MoS2 as an electrocatalyst. The MoS2 modified GC electrode (MSGC) was used as an electrochemical sensor for the detection of thiabendazole (TBZ). Linear sweep voltammetry (LSV) was used as the electrochemical sensing technique. The MSGC exhibited good performance in the detection of TBZ. A limit of detection of 0.1 µM with a sensitivity of 7.47 µA/µM.cm2 was obtained for the detection of TBZ using the LSV method. The MSGC also showed good selectivity for the detection of TBZ in the presence of various interfering compounds. The obtained results showed that MoS2 has good electrocatalytic properties. This motivated us to explore the catalytic properties of MoS2 in dye sensitized solar cells (DSSCs). Thus, we have fabricated DSSCs using MoS2 as a platinum-free counter electrode material. The MoS2 counter electrode-based DSSCs showed good power conversion efficiency of more than 5%. We believe that the present work is beneficial for the scientific community, and especially for research surrounding the design and fabrication of catalysts for electrochemical sensing and DSSC applications.

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Section: Sensitivity = S/area Of the Gc Electrode (2)supporting

confidence: 85%

Hydrothermally Synthesized MoS2 as Electrochemical Catalyst for the Fabrication of Thiabendazole Electrochemical Sensor and Dye Sensitized Solar Cells

Khan,

Ahmad,

Raza

et al. 2024

Catalysts

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“…10 To improve MIP sensors' performances, electrode surfaces are usually modified with conducting nanomaterials, such as carbon nanotubes, graphene and metal nanoparticles, which increase the electrical conductivity and surface area-tovolume ratio of the electrodes. [9][10][11][12][13][14][15][16] Here, a composite of gold nanoparticles (AuNPs) and reduced graphene oxide (rGO) was used as a matrix to form the MIP NLX sensor on a screen-printed carbon electrode (SPCE). The rGO-AuNPs composite was synthesized in situ in a one-step electrochemical method without the use of external reducing agent or linker molecules on the SPCE.…”

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confidence: 99%

Electrochemical Determination of Naloxone Using Molecularly Imprinted Poly(para-phenylenediamine) Sensor

Shaabani

Chan

Lee

et al. 2020

J. Electrochem. Soc.

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A molecularly imprinted polymer (MIP)-based electrochemical sensor featuring an electrochemically grafted para-phenylenediamine functional monomer on a reduced graphene oxide-gold nanoparticles composite modified screen printed electrode is reported. The morphology and properties of the sensing material were characterized with microscopy, spectroscopy and electrochemical techniques. A number of factors affecting the performance of the MIP sensor were examined and optimized. Under an optimized condition, the imprinted electrochemical sensor yielded homogenous naloxone binding sites with a dissociation constant of 8.6 μM, and responded linearly up to 8 μM naloxone, with a limit of detection of 0.16 μM. The sensor showed good run-to-run repeatability and batch-to-batch performance reproducibility with relative standard deviation of 5.7%–9.6% (n = 4) and <9% (n = 3), respectively. The imprinted sensor retained 95% and 85% of its performance when stored at ambient conditions for one and two weeks, respectively, demonstrating the sensor’s good stability. Selectivity experiments showed that both the MIP sensor and non-imprinted polymer electrode had minimal response (<25%) to equal concentrations of structurally similar compounds such as morphine, naltrexone and noroxymorphone, indicating good selectivity of the MIP sensor towards naloxone. The MIP sensor was successfully used to quantify naloxone in artificial urine samples, yielding recoveries greater than 92%.

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“…1), the interactions in molecular printing methods have been classified as covalent, 50,51 non-covalent, 52,53 or semi-covalent. 54,55 Specifically for glucose analysis, the use of MIPs for electrodes modification is due to the remarkable characteristics (relatively stable, cheap, low cost, and high sensitivity due to its molecularly imprinted cavities) 49,[56][57][58] that improves the non-enzymatic electrochemical detection process of glucose in an aqueous solution.…”

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confidence: 99%

Review—Trends on the Development of Non-Enzymatic Electrochemical Sensors Modified with Molecularly Imprinted Polymers for the Quantification of Glucose

Hernández-Ramírez,

Franco-Guzmán,

Ibarra-Ortega

et al. 2024

J. Electrochem. Soc.

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Glucose is the principal source of energy for humans and its quantification in physiological samples can diagnose or prevent diseases. Commonly, glucose determination is based on spectrophotometric-enzymatic techniques, but since at least a decade ago, electroanalytical strategies have emerged as promising alternatives providing accuracy and precision in the determination of biomolecules. This review focuses on the development of non-enzymatic methodologies based on modified electrochemical sensors with molecularly imprinted polymers (MIPs) for glucose detection sensors in physiological samples (blood, saliva, and urine). The trends in the construction of non-enzymatic sensors base on MIP combine with materials such as carbonaceous materials, metal nanoparticles, and polymers improving their electrocatalytic properties and analytical parameters of the electro-analytical methodologies developed. Glassy carbon electrodes, carbon paste electrodes, and screen-printed electrodes are the main transductors modified with MIP for the electrochemical oxidation of glucose, and the maximum anodic peak current is taken to the analytical signal. In all reported non-enzymatic sensors, the presence of the MIP improved glucose determination compared to the bare working electrode. The reported results demonstrated that this electroanalytical approach represents a viable alternative for fast and confident analysis of the glucose molecule overcoming the drawbacks presented by enzymatic sensors.

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Preparation of Molecularly Imprinted Polymer Sensor on Electrochemically Reduced Graphene Oxide Modified Electrode for Selective Probing of Thiabendazole

Cited by 26 publications

References 47 publications

Hydrothermally Synthesized MoS2 as Electrochemical Catalyst for the Fabrication of Thiabendazole Electrochemical Sensor and Dye Sensitized Solar Cells

Hydrothermally Synthesized MoS2 as Electrochemical Catalyst for the Fabrication of Thiabendazole Electrochemical Sensor and Dye Sensitized Solar Cells

Electrochemical Determination of Naloxone Using Molecularly Imprinted Poly(para-phenylenediamine) Sensor

Review—Trends on the Development of Non-Enzymatic Electrochemical Sensors Modified with Molecularly Imprinted Polymers for the Quantification of Glucose

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