Construction of a glassy carbon ibuprofen electrode modified with multi-walled carbon nanotubes and cyclodextrins

Lenik, Joanna; Nieszporek, Jolanta

doi:10.1016/j.snb.2017.09.034

Cited by 28 publications

(19 citation statements)

References 38 publications

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“…The values of the binding constants of the ionophore with thiocyanate in the polymeric membrane were estimated as 10 14.1 and 1012.5 for Mn(III)-and Mn(IV)-salophen complexes, respectively. The analytical application of the sensor was successfully demonstrated in saliva samples.Cyclodextrin derivatives possessing a cage-like supramolecular structure remain very popular in chemical sensing and have been explored as possible ionophores for anion sensing.Lenik and Nieszporek reported on use of heptakis (2,3,6-triacid) detection 105. The electrode exhibited a Nernstian slope of 59.9 mV, but in a rather modest concentration range from 10 -5 to 10 -2 M.Although authors reported good selectivity, the small electrode slopes to interfering ions suggest a significant experimental biased in the data.Cation-Selective Ionophores.…”

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confidence: 99%

Potentiometric Sensing

2018

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confidence: 99%

Potentiometric Sensing

2018

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“…O". Taking into account a success in the ability of cyclodextrins CycDs to be effective to accommodate in a selective fashion various organic compounds in their central cavities that fulfill the structural requirements of the CycD cavity as a hydrophobic binding site and thereby numerous reports have been dedicated to highly selective sensors based CycDs [43]. Accordingly, it is important to gain insight into the comparison with the cited ionophore, in this context, native β-cyclodextrin was chosen as a naturally receptor; ionophore is embedded into a PVC polymeric membrane with an anionic additive; p-ClTPB and o-NPOE as a plasticizer for the development β-CycD/KTpClPB polymeric membrane based sensor for mCPP.…”

Section: Membrane Response and Sensitivity Of The Sensorsmentioning

confidence: 99%

Potentiometric Signal Transduction for Selective Determination of 1-(3-Chlorophenyl)piperazine “Legal Ecstasy” Through Biomimetic Interaction Mechanism

El-Naby

2019

Chemosensors

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1-(3-chlorophenyl)piperazine (mCPP) is a wide spread new psychoactive substance produces stimulant and hallucinogenic effects similar to those sought from ecstasy. Hence, in the recent years, mCPP has been introduced by the organized crime through the darknet as a part of the illicit ecstasy market with a variable complex profile of pharmacologically active substances that pose problematic risk patterns among people who take these seized products. Accordingly, the design of selective sensors for the determination of mCPP is a very important demand. In this respect, a supramolecular architecture; [Na(15-crown-5)][BPh4] from the assembly of 15-crown-5 and sodium tetraphenylboron has been utilized as an ionophore, for the first time in the selective recognition of mCPP in conjunction with potassium tetrakis(p-chlorophenyl)borate and dioctylphthalate through polymeric membrane ion sensors. The ionophore exhibited a strong binding affinity that resulted in a high sensitivity with a slope closed to the ideal Nernstian value; 58.9 ± 0.43 mV/decade, a larger dynamic range from 10−6 to 10−2 M, a lower limit of detection down to 5.0 × 10−7 M and a fast response time of 5 s. Very important also is it was afforded excellent selectivity towards mCPP over psychoactive substances of major concern, providing a potentially useful system for the determination of mCPP in the illicit market. On comparison with the natural β-cyclodextrin as an ionophore, it exhibited more sensitivity and selectivity estimated to be the superior.

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“…Another study revealed that a fullerene-C 60 -modified glassy carbon electrode can remarkably enhance electrocatalytic activity towards the oxidation of ACV [15]. Recently, some studies reported the implementation of host-guest chemistry of cyclodextrins to enhance the sensors sensitivity [24][25][26][27][28]. In the next work multiwalled carbon nanotube/tiron-doped polypyrrole for to measure ACV was proposed that offers high stability and good reproducibility and satisfactory results for the determination of ACV in real samples [17].…”

Section: Introductionmentioning

confidence: 99%

“…The electrochemical response of ACV can be enhanced by using electrodes modified by cyclodextrin, which interact strongly with ACV in order to achieve pre-concentration of the analyte at the electrode surface. Recently, some studies reported the implementation of host-guest chemistry of cyclodextrins to enhance the sensors sensitivity [24][25][26][27][28]. b-Cyclodextrin (b-CD) is a cyclic oligosaccharide produced from starch via enzymatic conversion.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

2018

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In this work we reported, a simple and reproducible double‐step modified carbon paste electrode (CPE) for recognition and designation of Acyclovir (ACV). In the first stage, for acquiring the structure of TiO2 NPs‐CPE, 5 % TiO2 nanoparticles (NPs) doped into the electrode tissue. In the second stage, β‐Cyclodextrin (β‐CD) anchored on the TiO2 NPs‐CPE surface by electropolymerization which yields a β‐CD/TiO2 NPs‐CPE. Topography, characteristics and electrochemical response of the fabricated electrodes with such techniques as: the field emission scanning electron microscopy (FESEM), chronocoulometry (CC), cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were analyzed. Also the spent TiO2 NPs powders were characterized by X‐ray diffraction (XRD). The results illustrated that this sensor designed efficiently increases the surface area of composite electrode and the performance of the oxidation of ACV at the surface modified electrode compared to the bare electrode improved. Under the desirable situations, the proposed of analytical procedure was proved to be applicable in two linear calibration ranges betwixt 0.09 to 2.98 and 2.98 to 47.61 μM. The detection limit was estimated for low concentrations ACV 21 nM (S/N=3). Eventually, the fabricated composite electrode was successfully applied for the detection of trace amounts of the ACV in the blood serum samples.

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Construction of a glassy carbon ibuprofen electrode modified with multi-walled carbon nanotubes and cyclodextrins

Cited by 28 publications

References 38 publications

Potentiometric Sensing

Potentiometric Sensing

Potentiometric Signal Transduction for Selective Determination of 1-(3-Chlorophenyl)piperazine “Legal Ecstasy” Through Biomimetic Interaction Mechanism

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

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Construction of a glassy carbon ibuprofen electrode modified with multi-walled carbon nanotubes and cyclodextrins

Cited by 28 publications

References 38 publications

Potentiometric Sensing

Potentiometric Sensing

Potentiometric Signal Transduction for Selective Determination of 1-(3-Chlorophenyl)piperazine “Legal Ecstasy” Through Biomimetic Interaction Mechanism

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO2 Nanoparticle and β‐Cyclodextrin

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Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin