Molecularly imprinted-multiwall carbon nanotube paste electrode as a biosensor for voltammetric detection of rutin

Rezaei, Behzad; Majidi, Najmeh; Ensafi, Ali A.; Karimi-Maleh, Hassan

doi:10.1039/c1ay05271c

Cited by 62 publications

(14 citation statements)

References 46 publications

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“…Zhang et al 2013). In contrast, there were fewer reports about MWCNT paste electrode modified with MIP (Rezaei et al 2011). The combination of a multiwalled carbon nanotube paste electrode and molecularly imprinted polymers may produce sensors with good sensitivity and selectivity.…”

Section: Introductionmentioning

confidence: 79%

Determination of Bisphenol A Using an Electrochemical Sensor Based on a Molecularly Imprinted Polymer-Modified Multiwalled Carbon Nanotube Paste Electrode

et al. 2014

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A novel electrochemical sensor for bisphenol A was developed through the combination of a molecular imprinting technique with a multiwalled carbon nanotube paste electrode. A molecularly imprinted polymer and nonimprinted polymer were synthesized in the presence and absence of bisphenol A, and then used to prepare the electrode. The bisphenol A imprinted polymer was applied as a selective recognition element in the electrochemical sensor. Differential pulse voltammetry was used to characterize the electrochemical behavior of bisphenol A at the modified electrodes. The results showed that the imprinted sensor had highest response for bisphenol A. Parameters including the carbon paste composition, pH, and adsorption time for the imprinted sensor were optimized. Under the optimized conditions, the differential pulse voltammetry peak current was linear with the concentration of bisphenol A from 0.08 to 100.0 lM, with a detection limit of 0.022 lM. The imprinted sensor for bisphenol A exhibited good selectivity, stability, and reproducibility. This sensor was successfully used for the determination of bisphenol A in real water samples.

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Section: Introductionmentioning

confidence: 79%

Determination of Bisphenol A Using an Electrochemical Sensor Based on a Molecularly Imprinted Polymer-Modified Multiwalled Carbon Nanotube Paste Electrode

et al. 2014

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“…Although QCM exhibits high sensitivity, the lack of selectivity limits the application of the QCM sensor [13]. Molecularly imprinted polymer (MIP) mimic the antigen-antibody binding mode by forming cavities that complement a template molecule's shape and size [14]. When the template molecule is eluted, the MIP obtain the ability to recognize the template again [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Development and application of a quartz crystal microbalance sensor based on molecularly imprinted sol-gel polymer for rapid detection of patulin in foods

Fang

Wang

Yang

et al. 2016

Sensors and Actuators B: Chemical

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“…Carbon nanotubes (CNTs) are important nanostructure with one hundred times the tensile strength of steel, thermal conductivity better than all but the purest of diamond, and electrical conductivity similar to copper, but with the ability to carry much higher currents [33][34][35][36][37][38][39] G to result in low detection limits, high sensitivities, reduction of over-potentials, and resistance to surface fouling [40][41][42][43]. Electron-transfer reactions, which constitute a well-known class of chemical reactions, play an important role in chemistry and biology [44].…”

Section: Introductionmentioning

confidence: 99%

A Differential Pulse Voltammetric Sensor for Determination of Glutathione in Real Samples Using a Trichloro(terpyridine)ruthenium(III)/Multiwall Carbon Nanotubes Modified Paste Electrode

et al. 2015

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A trichloro(terpyridine)ruthenium(III) modifiedmultiwall carbon nanotubes paste electrode (TChPRu-MWCN TPE) was fabricated and used as an electrocatalyst for the oxidation of glutathione (GSH). The effects of variables such as pH and modifier percentage were optimized using cyclic voltammetric (CV) method. The modified electrode shows a very efficient electrocatalytic activity for the anodic oxidation of GSH in the presence of 0.1 mol L -1 phosphate buffer solution (PBS) (pH = 8.0). The oxidation peak potential of the GSH at a surface of TChPRu-MWCNTPE is appeared at 270 mV that is about 330 mV lower than the oxidation peak potential at the surface of a traditional carbon paste electrode (CPE) in the same condition. The kinetic parameters such as electron transfer coefficient, rate constant for the chemical reaction between GSH and the redox site in TChPRu-MWCNTPE, and the apparent diffusion coefficient (D) was determined in an aqueous buffered solution. The electrocatalytic currents increase linearly with the GSH concentration over the concentration range of 0.6-56.8 μmol L -1 . The detection limit for GSH was found to be 0.3 μmol L -1 . In addition, the theoretical calculations were performed to determine the Gibbs free energy (GFE) changes of the conversion of trichloro(terpyridine)ruthenium(II) (TChPRu′) to TChPRu in the acidic and basic media, separately. Finally, this method was examined as a simple and precise electrochemical sensor for determination of GSH in the real samples such as hemolysed erythrocyte and urine. Index Terms-Glutathione; Multi-wall carbon nanotubes; Theoretical calculations; Trichloro(terpyridine)ruthenium. 1530-437X (c)

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Molecularly imprinted-multiwall carbon nanotube paste electrode as a biosensor for voltammetric detection of rutin

Cited by 62 publications

References 46 publications

Determination of Bisphenol A Using an Electrochemical Sensor Based on a Molecularly Imprinted Polymer-Modified Multiwalled Carbon Nanotube Paste Electrode

Determination of Bisphenol A Using an Electrochemical Sensor Based on a Molecularly Imprinted Polymer-Modified Multiwalled Carbon Nanotube Paste Electrode

Development and application of a quartz crystal microbalance sensor based on molecularly imprinted sol-gel polymer for rapid detection of patulin in foods

A Differential Pulse Voltammetric Sensor for Determination of Glutathione in Real Samples Using a Trichloro(terpyridine)ruthenium(III)/Multiwall Carbon Nanotubes Modified Paste Electrode

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