A ferrocene/imprinted polymer nanomaterial-modified carbon paste electrode as a new generation of gate effect-based voltammetric sensor

Alizadeh, Taher; Akhoundian, Maedeh; Ganjali, Mohammad Reza

doi:10.1039/c7nj03396f

Cited by 23 publications

(10 citation statements)

References 41 publications

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“…Integrating additional functionalities to a functional material and applying them in useful devices are universal strategies to design multifunctional materials. Ferrocene-based organometallic compounds have gained a great deal of research attention because of their interesting properties related to redox switching, optical nonlinearity, electronic communication, molecular receptor, sensors, etc. − Recently, substantial interest has been given to ferrocenyl molecules containing a donor–acceptor system because of their unique photophysical and optical properties. − The intrinsic redox property of the ferrocenyl fragment has made it a potential candidate in dye-sensitized solar cells (DSSC), mostly as a redox electrolyte to improve the device efficiency.…”

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confidence: 99%

Electrolyte-Free Dye-Sensitized Solar Cell with High Open Circuit Voltage Using a Bifunctional Ferrocene-Based Cyanovinyl Molecule as Dye and Redox Couple

et al. 2018

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Functionalization of ferrocenyl moieties with a cyanovinyl system using a unique solid-state synthetic method led to the formation of donor−acceptor type compounds with wide absorption in the visible region. A DSSC study using the ferrocenyl cyanovinyl compound as a dye with an electrolyte-free fabrication system showed an unprecedented open-circuit voltage (V OC ) of 763−841 mV. DFT calculations were carried out to understand an unique electron transfer mechanism for the DSSC device which may be responsible for the high V OC .

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confidence: 99%

Electrolyte-Free Dye-Sensitized Solar Cell with High Open Circuit Voltage Using a Bifunctional Ferrocene-Based Cyanovinyl Molecule as Dye and Redox Couple

et al. 2018

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“…Extraction time studies can help predict the sampling time needed and the conditions for optimum sensing. Detection may exploit the electrochemical activity of a drug [18, 37, 51] or a redox probe such as ferri/ferrocyanide is use to gauge MIP permeability change due to the binding of a non‐electrochemically active drug [7, 52]. Often an MIP polymer is able to withstand the extreme solution conditions needed for electrochemical assay.…”

Section: Mip Adaptation To Electrochemical Sensingmentioning

confidence: 99%

Molecular Imprinted Polymer Modified Electrochemical Sensors for Small Drug Analysis: Progress to Practical Application

Feroz

Vadgama

2020

Electroanalysis

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Molecular imprinted polymers (MIPs) are tailor made from synthetic polymers and designed to mimic the recognition properties of natural biological affinity molecules. MIPs incorporate binding motifs complementary to target organic molecule shape and functional groups in order to mimic the complex binding surfaces of natural macromolecules. This confers selectivity and specificity, with the added advantage of artificial MIP polymer stability and ready adaptability to the fabrication and creation of miniaturised affinity interfaces for electrochemical sensing and extra‐laboratory testing. Their generic capability as robust sorbent phases for drug extraction and concentration allows for targeted, interfacial interrogation by the active electrochemical surface. A wide range of electrochemical sensing strategies has also been advanced in recent years, which is covered by this review. The review covers MIP functional principles, examples of MIP preparative routes and final assay outcomes for the measurement of small molecule drugs of biomedical, and also of potential environmental relevance. Some small molecules as examples of toxin and contaminant measurement are also given. A historic background to MIP development is provided, but the review mainly focuses on electrochemical sensor advances in the last five years.

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“…Electrochemical methods have recently received a great deal of attraction to use for the analysis of biologically important compounds, because of their simplicity, ease of miniaturization, high sensitivity, and relatively low cost [18][19][20][21]. Various kinds of electrochemical transducers have been applied in electrochemical methods.…”

Section: Introductionmentioning

confidence: 99%

A Simple Method for Melatonin Determination in the Presence of High Levels of Tryptophan using an Unmodified Carbon Paste Electrode and Square Wave Anodic Stripping Voltammetry

2022

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Electrochemical determination of melatonin in the presence of tryptophan is a challenge because of the coincidence of voltammetric signals of these compounds when executing a voltammetric technique. The new method for selective determination of melatonin based on the square wave anodic stripping voltammetry determination of an electroactive product of melatonin was suggested here. This product is produced by previously applied positive pre‐potential to a carbon paste electrode, immersed in the test solution. By this means, the electrochemical signal of melatonin was separated effectively from that of tryptophan, making it possible to determine melatonin in the presence of a high concentration of tryptophan. The effect of important parameters on electrode performance was studied and optimized. The optimum response was obtained at pH=2 and utilizing the pre‐potential magnitude of +0.8 V, applied for 10 s. A linear relationship was found between peak current intensity and melatonin concentrations over the range of 5.00×10−7 to 8.00×10−5 mol L−1. A detection limit of 8.30×10−8 mol L−1 was calculated for the method (S/N=3). The selectivity of the method was considerably high, because of the independence of melatonin signal to the presence of higher amounts of some potentially interfering agents such as ascorbic acid, tryptophane glucose, etc. As an analytical application, the proposed sensor was used for the determination of melatonin in pharmaceutical and food samples.

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A ferrocene/imprinted polymer nanomaterial-modified carbon paste electrode as a new generation of gate effect-based voltammetric sensor

Abstract: Herein, a carbon paste electrode, concurrently incorporated with ferrocene and a molecularly imprinted polymer nanomaterial (Fc-MIP-CP electrode), is introduced as an innovative sensing platform for the detection of thiamine.

Cited by 23 publications

References 41 publications

Electrolyte-Free Dye-Sensitized Solar Cell with High Open Circuit Voltage Using a Bifunctional Ferrocene-Based Cyanovinyl Molecule as Dye and Redox Couple

Electrolyte-Free Dye-Sensitized Solar Cell with High Open Circuit Voltage Using a Bifunctional Ferrocene-Based Cyanovinyl Molecule as Dye and Redox Couple

Molecular Imprinted Polymer Modified Electrochemical Sensors for Small Drug Analysis: Progress to Practical Application

A Simple Method for Melatonin Determination in the Presence of High Levels of Tryptophan using an Unmodified Carbon Paste Electrode and Square Wave Anodic Stripping Voltammetry

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