Individual and simultaneous electrochemical determination of metanil yellow and curcumin on carbon quantum dots based glassy carbon electrode

Shereema, Rayammarakkar M.; Rao, T. Prasada; Kumar, Vijai; Sruthi, T. V.; Vishnu, R.; Prabhu, Gurpur Rakesh D.; Shankar, S. Sharath

doi:10.1016/j.msec.2018.07.055

Cited by 53 publications

(17 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the reverse scans the two cathodic peaks also increase similarly by increasing the number of scans at smaller potentials where the electroreduction of the oxidized film takes place. The appearance of a second reduction peak immediately after the first former peak can be observed, where electroreduction of the azo group to hydrazo group occurs according to an earlier work of Shereema et al [8], which is then oxidized back to azo group in the next scan. Similarly to the previous findings in basic solution of 5-sulpho-salicylate ions only insulating film develops ( Fig.…”

Section: Results and Discussion 31 Cyclic Voltammetric Studies In Thmentioning

confidence: 77%

“…Electrochemical applications utilize also its favorable spectral properties namely high absorbance in the visible wavelength range like in solar power generation playing the role of sensitizer on TiO 2 / Ti electrode in a photoelectrochemical cell [6,7]. The use of carbon quantum dot modified glassy carbon electrode proved its usefulness in detection of Metanil Yellow [8].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Anion Effect on the Electropolymerization Reaction of Metanil Yellow in Aqueous Media and Characterization of Polymer Films

Kiss

Kunsági‐Máté

2020

Period. Polytech. Chem. Eng.

View full text Add to dashboard Cite

The electropolymerization of Metanil Yellow was investigated in aqueous solutions containing inorganic acids (sulphuric, hydrochloric, nitric, phosphoric and perchloric acid) as well as sulphonic acids (5-sulpho salicylic acid, sulphanilic acid, dodecylbenzene sulphonic acid, 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and lauryl sulphate in its acidic solution. By the inorganic ions the conductivity increased in the sulphate, chloride, nitrate, perchlorate serie. Of the organic sulphonic compounds 5-sulpho-salicylic acid was found to be a very efficient dopant in increasing polymer conductivity being obviously better than the other sulphonate anions. The formed conducting polymer was not suitable for detection of the corresponding anion. Nitrite ions completely diminished the electric properties of the polymer due to the reaction resulting nitrosamine.

show abstract

Section: Results and Discussion 31 Cyclic Voltammetric Studies In Thmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Anion Effect on the Electropolymerization Reaction of Metanil Yellow in Aqueous Media and Characterization of Polymer Films

Kiss

Kunsági‐Máté

2020

Period. Polytech. Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…8,9 There are several methods for CM detection, such as HPLC, 10–12 UV fluorescence 13 and electrochemical methods. 14–16 Electrochemical sensors possess high sensitivity, portability, rapid measurement, simplicity and need a small quantity of sample. 17,18 Commercial applications confirm the attractive advantages of these biosensors.…”

Section: Introductionmentioning

confidence: 99%

A reduced graphene oxide-β-cyclodextrin nanocomposite-based electrode for electrochemical detection of curcumin

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Carbon dots, also named graphene quantum dots or carbon nanodots, are a new trend in electroanalysis applications. Up to recent times, this material has been used mainly in photoluminescence-based determinations; but in current years it is growing strongly also in the electrochemical field [ 23 , 24 , 25 , 26 ]. On the other side, carbon nanotubes, considered as a rolled layer of graphene [ 27 ], have been extensively studied as a sensor modifier as well.…”

Section: Introductionmentioning

confidence: 99%

Graphene for the Building of Electroanalytical Enzyme-Based Biosensors. Application to the Inhibitory Detection of Emerging Pollutants

2021

View full text Add to dashboard Cite

Graphene and its derivates offer a wide range of possibilities in the electroanalysis field, mainly owing to their biocompatibility, low-cost, and easy tuning. This work reports the development of an enzymatic biosensor using reduced graphene oxide (RGO) as a key nanomaterial for the detection of contaminants of emerging concern (CECs). RGO was obtained from the electrochemical reduction of graphene oxide (GO), an intermediate previously synthesized in the laboratory by a wet chemistry top-down approach. The extensive characterization of this material was carried out to evaluate its proper inclusion in the biosensor arrangement. The results demonstrated the presence of GO or RGO and their correct integration on the sensor surface. The detection of CECs was carried out by modifying the graphene platform with a laccase enzyme, turning the sensor into a more selective and sensitive device. Laccase was linked covalently to RGO using the remaining carboxylic groups of the reduction step and the carbodiimide reaction. After the calibration and characterization of the biosensor versus catechol, a standard laccase substrate, EDTA and benzoic acid were detected satisfactorily as inhibiting agents of the enzyme catalysis obtaining inhibition constants for EDTA and benzoic acid of 25 and 17 mmol·L−1, respectively, and a maximum inhibition percentage of the 25% for the EDTA and 60% for the benzoic acid.

show abstract

Individual and simultaneous electrochemical determination of metanil yellow and curcumin on carbon quantum dots based glassy carbon electrode

Cited by 53 publications

References 33 publications

Anion Effect on the Electropolymerization Reaction of Metanil Yellow in Aqueous Media and Characterization of Polymer Films

Anion Effect on the Electropolymerization Reaction of Metanil Yellow in Aqueous Media and Characterization of Polymer Films

A reduced graphene oxide-β-cyclodextrin nanocomposite-based electrode for electrochemical detection of curcumin

Graphene for the Building of Electroanalytical Enzyme-Based Biosensors. Application to the Inhibitory Detection of Emerging Pollutants

Contact Info

Product

Resources

About