Simple and affordable graphene nano-platelets and carbon nanocomposite surface decorated with cetrimonium bromide as a highly responsive electrochemical sensor for rutin detection

Hareesha, N.; Manjunatha, Jamballi G.; ALOthman, Zeid A.

doi:10.1016/j.jelechem.2022.116388

Cited by 52 publications

(14 citation statements)

References 33 publications

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“…A is the electrochemical surface area of the modified electrode and B is the slope of the calibration plot. The results given for the analytical parameters of RU at the modified surface of various electrodes are identical to the analytical parameters attained at the PGAMGPE, as shown in Table 1 [ 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 ]. Additionally, the PGAMGPE results validate that the PGAMGPE is an appropriate tool for the sensitive electrochemical detection of RU with a significant improvement in the simplified fabrication process.…”

Section: Resultssupporting

confidence: 58%

Electrochemical Polymerisation of Glutamic Acid on the Surface of Graphene Paste Electrode for the Detection and Quantification of Rutin in Food and Medicinal Samples

et al. 2022

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Rutin (RU) is one of the best-known natural antioxidants with various physiological functions in the human body and other plant species. In this work, an efficient voltammetric sensor to detect RU in food samples was explicated using a poly (glutamic acid)-modified graphene paste electrode (PGAMGPE). In order to detect RU, the proposed sensor diminishes material resistance and overpotential while increasing kinetic rate, peak currents, and material conductance. Using differential pulse voltammetry (DPV) and cyclic voltammetry (CV), the analysing efficiency of a PGAMGPE and a Bare graphene paste electrode (BGPE) was evaluated in 0.2 M phosphate buffer (PB) at an ideal pH of 6.5. in a potential window of −0.25 V to 0.6 V. Electrochemical impedance spectroscopy (EIS) was used to analyse the prepared electrode materials’ conductivity, charge transfer resistance, and the kinetics of electron transport. Field emission scanning electron microscopy (FE-SEM) images were considered to compare the exterior morphology of the PGAMGPE and the BGPE. It was discovered that the PGAMGPE and the BGPE have electroactive surfaces of 0.062 cm2 and 0.04 cm2, respectively. It was determined that two protons and two electrons participated in the redox process. The resultant limit of detection (LOD) was found to be 0.04 µM and 0.06 µM, respectively, using DPV and CV methods. In spite of common interferents such as metal ions and chemical species, the developed sensor’s selectivity for RU detection was impressive. For the simultaneous analysis of RU in the presence of caffeine (CF), the PGAMGPE affords a good electrochemical nature for RU with good selectivity. Due to the good stability, repeatability, reproducibility, and ease of use of the present RU sensor, it is useful for real sample analysis such as food and medicinal samples with recovery ranging from 94 to 100%.

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Section: Resultssupporting

confidence: 58%

Electrochemical Polymerisation of Glutamic Acid on the Surface of Graphene Paste Electrode for the Detection and Quantification of Rutin in Food and Medicinal Samples

et al. 2022

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“…This in turn increased the reactive sites and the mobility of electrons during the electrochemical studies at a 4 mg modifier concentration. We have also calculated the active surface area of the 4 mg HEA-MCPE and BCPE using the Randles-Sevcik equation [29][30][31][32][33][34] as below and the calculated diffusion coefficient of methylene blue for two-electron transfer redox reaction is found to be 5.30 × 10−6 cm 2 s -1 as per the literature [35]. The calculated active surface area for BCPE and HEA-MCPE is found to be 0.180 and 0.918 cm 2 respectively.…”

Section: Electro-oxidation Of Mb In Wastewater 331 Optimizing the Con...mentioning

confidence: 69%

Electrochemical oxidation of methylene blue dye in wastewater using mechanically alloyed high entropy alloy modified carbon paste electrode using cyclic voltammetry

Rajendrachari

Adimule²,

Jayaprakash³

et al. 2023

Mater. Res. Express

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Mechanical alloying is one of the popular, simple, and easy powder metallurgy methods to prepare nanostructured high entropy alloys (HEA). HEAs are modern-day alloys that exhibit significantly improved properties and are used in many unique applications. One such application is using HEA powders for determining the methylene blue dye in wastewater using cyclic voltammetry. We have successfully synthesized the HEA powder of composition 25Fe-19Cr-19Ni-18Ti-19Mn by planetary ball mill and studied their phases, surface morphology, and particle sizes by X-Ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM) respectively. We have fabricated the HEA-modified carbon paste electrode (HEA-MCPE) to study the electrochemical oxidation of methylene blue (MB) dye present in the wastewater. MB is a cationic dye that is toxic, and carcinogenic in high doses; generally used in textile, paper, and leather industries for coloring purposes and discharged into the water sources and thus creating a threat to aquatic animals and humans. Therefore, we must determine the MB dye in waste water regularly. Our fabricated electrode can detect MB dye in wastewater over a pH range of 6 to 7.6 with a significant current response. We have found that, the 4mg HEA-MCPE and pH 6 are the optimal experimental conditions for achieving a higher rate of electro-oxidation of MB dye. The calculated active surface area for bare and HEA-MCPE is found to be 0.180 and 0.918 cm2 respectively. We have found out that, increase in the concentration of MB from 1mM to 5mM increases the anodic peak current linearly due to the increased molecular interaction and the mobility of electrons between the analyte and the electrode surface.

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“…The calculated values of LOD and LOQ are found to be 8.31 nM and 27.70 nM, respectively. The obtained LOD and the RT sensor are compared with the previous reports and the corresponding data are tabulated in Table 2 [28,32–46] . This comparison analysis shows that, the prepared sensor and used method provides acceptable LOD for the detection of RT.…”

Section: Resultsmentioning

confidence: 87%

“…Graphene is the allotrope of carbon and a monolayer of carbon atoms with hexagonal honeycomb lattice. Graphene has various significant features such as higher potential window, inexpensive, elevated electro‐active surface area, thermal conductivity, biocompatibility, chemical stability, electrical conductivity, and mechanical stability [28,40,46] . Because of these helpful features, in the present work we selected graphene as a vital base electrode material for RT analysis.…”

Section: Introductionmentioning

confidence: 99%

“…Graphene has various significant features such as higher potential window, inexpensive, elevated electro-active surface area, thermal conductivity, biocompatibility, chemical stability, electrical conductivity, and mechanical stability. [28,40,46] Because of these helpful features, in the present work we selected graphene as a vital base electrode material for RT analysis. Also, electroanalytical methods present high sensitivity and stable voltammetric signals for bio/electroactive compounds at the surface of conductive amino acid-based polymer modified electrode material.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemically Polymerized DL‐Phenylalanine‐Deposited Graphene Paste Electrode for the Detection of Rutin

et al. 2023

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The sensitive, economical, green, and simple voltammetric sensor for the detection of the redox behaviour of rutin (RT) was prepared by the electrochemical polymerization approach. The constructed polymerized DL-phenylalanine (DL-PN) modified graphene paste electrode (MGPE) and bare graphene paste electrode (BGPE) were elucidated using cyclic voltammetry (CV), differential pulse voltammetry (DPV), electrochemical impedance spectroscopic (EIS) and field emission scanning electron microscopic (FE-SEM) approaches. The analysis of RT in phosphate-buffered saline (PBS) of pH 6.5 was demonstrated by the application of a modified electrode (Poly(DL-PN)MGPE) with higher electrocatalytic activity and active sites as compared to BGPE. The important electrochemical parameters such as the influence of PBS, pH, scan rate, and concentration of RT on Poly(DL-PN)MGPE were evaluated. The variation of scan rate and PBS pH assessment discloses that the RT redox nature at Poly(DL-PN)MGPE surface has proceeded via pH-dependant and adsorption-controlled pathways. The Poly(DL-PN)MGPE senses RT in the range from 0.2 to 10.0 μM with a lower limit of detection (LOD) value of 8.31 nM and a limit of quantification (LOQ) of 27.70 nM. The Poly(DL-PN)MGPE shows excellent reproducibility, antifouling nature, repeatability, and stability for the detection of RT. Also, the Poly(DL-PN)MGPE analytical applicability was discussed for RT detection in citrus fruit juice samples.

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Simple and affordable graphene nano-platelets and carbon nanocomposite surface decorated with cetrimonium bromide as a highly responsive electrochemical sensor for rutin detection

Cited by 52 publications

References 33 publications

Electrochemical Polymerisation of Glutamic Acid on the Surface of Graphene Paste Electrode for the Detection and Quantification of Rutin in Food and Medicinal Samples

Electrochemical Polymerisation of Glutamic Acid on the Surface of Graphene Paste Electrode for the Detection and Quantification of Rutin in Food and Medicinal Samples

Electrochemical oxidation of methylene blue dye in wastewater using mechanically alloyed high entropy alloy modified carbon paste electrode using cyclic voltammetry

Electrochemically Polymerized DL‐Phenylalanine‐Deposited Graphene Paste Electrode for the Detection of Rutin

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