Electrochemical carbon based nanosensors: A promising tool in pharmaceutical and biomedical analysis

Kurbanoğlu, Sevinç; Ozkan, Sibel A.

doi:10.1016/j.jpba.2017.06.062

Cited by 106 publications

(51 citation statements)

References 240 publications

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“…When developing new voltammetric sensors, various modification methods can be used to increase the sensitivity of analyte determination. For example, you can use the electrochemical pretreated electrodes, carbon nanomaterials, metal nanoparticles and their oxides, as well as materials that increase the sorption of analyte on the surface of the electrode…”

Section: Introductionmentioning

confidence: 99%

Determination of Carmoisine onto Carbon‐Paste Electrode Modified by Silica Impregnated with Cetylpyridinium Chloride

2020

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In this paper a simple, cheap and sensitive electrochemical sensor for determination of Carmoisine in soft drinks was developed. Carmoisine is a synthetic azo dye which is used in food products. In this work effective voltammetric sensor based on carbon‐paste electrode modified by silica impregnated with cetylpyridinium chloride to increase the sensitivity of Carmoisine detection was proposed. The voltammetric behavior of Carmoisine, the number of protons and electrons involved in the oxidation process were studied. The probable mechanism of Carmoisine oxidation on the developed sensor was suggested. The optimal conditions for the square‐wave voltammetric determination of Carmoisine onto developed sensor were found to be: pH=2; Eads=400 mV; tads=300s; A=50 mV; ν=25 Hz, υ=100 mV/s. The calibration curve was linear in the range of Carmoisine concentrations 0,08‐1 μM. The proposed method was successfully tested in the analysis of Carmoisine in soft drinks with RSD not more than 5%.

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Section: Introductionmentioning

confidence: 99%

Determination of Carmoisine onto Carbon‐Paste Electrode Modified by Silica Impregnated with Cetylpyridinium Chloride

2020

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“…The nanocomposites combining gold nanoparticles and carbon materials are tested due to their unique electrocatalytic properties, good stability, quantized charging characteristics and biocompability . Besides carbon nanotubes and fullerenes , graphene , ordered mesoporous carbon (OMC), such as CMK‐3 and CMK‐1, were used as components of novel sensors and biosensors characterized by good electronic conductivity, highly defined pore size distribution, large pore volume, high specific surface area and enhanced mechanical stability .…”

Section: Introductionmentioning

confidence: 99%

Sensitive Voltammetric Amoxicillin Sensor Based on TiO₂ Sol Modified by CMK‐3‐type Mesoporous Carbon and Gold Ganoparticles

et al. 2018

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In this work, a novel voltammetric sensor was developed to determine amoxicillin (AMX). The electrode modification layer consisted of titanium dioxide sol (TiO2) modified with gold nanoparticles (AuNPs), CMK‐3‐type mesoporous carbon and Nafion. The morphology of the electrode composite was studied by scanning electron microscopy (SEM). Electrochemical behaviour of AMX at proposed electrode was studied. Effects of parameters comprising the amount of CMK‐3 and AuNPs in matrix composite, pH of supporting electrolyte and incubation time on the sensitivity of developed sensor were examined. The analytical characteristics of the proposed sensor were assessed. The developed sensor exhibited linear response in two AMX concentration ranges: from 0.5 to 2.5 μM and from 2.5 to 133.0 μM, with sensitivity of 1420 μA mM−1 (5071 μA mM−1 cm−2) and 832 μA mM−1 (2971 μA mM−1 cm−2), respectively. The detection limit was evaluated as 0.3 μM. For verification purposes the sensor was successfully employed in determination of AMX in pharmaceutical product, mineral and environmental water using a flow‐batch monosegmented sequential injection approach.

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“…Thus, the electroanalytical methods appear as an alternative to the traditional analytical methods. Carbon-based electrodes have been used widely for the electrochemical detection of different types of analytes [5][6][7], including caffeine [8][9][10]. In recent years, porous carbons have gained attention as potential electrochemical detectors [11,12] mainly due to its large surface area, tunable pore size, and efficient preparation.…”

Section: Introductionmentioning

confidence: 99%

Applicability of activated carbon obtained from peach stone as an electrochemical sensor for detecting caffeine

Arroyo-Gómez

Villarroel-Rocha

Araújo

et al. 2018

Journal of Electroanalytical Chemistry

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Simple, economical and highly sensitive electrodes for the detection of caffeine by using activated carbon from peach stones have been developed. The activated carbons were synthesized by chemical activation using ZnCl 2 and ZnCl 2 :FeCl 3 (1:1) as chemical agents, producing carbons with different textural properties and morphologies, which led to differences in the electroactive area of the materials that affected the electrochemical response to caffeine. The electrodes presented a linear response in the concentration range from 3.98 × 10 −5 to 4.58 × 10 −4 and 6.37 × 10 −4 M for the carbon activated with ZnCl 2 and ZnCl 2 :FeCl 3 (1:1), respectively. The detection limits were estimated in 2.85 × 10 −5 and 1.60 × 10 −5 M. The electrodes were tested to measure caffeine in real life samples, giving caffeine concentrations close to the reported values. Despite presenting the lowest surface area and the lowest thermal stability, the activated carbon obtained with ZnCl 2 :FeCl 3 (1:1) was more sensitive to caffeine, measuring caffeine concentrations very close to the reported values for the tested beverages. These results show that these electrodes may be an alternative to develop new and reliable analytical tools at low cost with high efficiency.

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Electrochemical carbon based nanosensors: A promising tool in pharmaceutical and biomedical analysis

Cited by 106 publications

References 240 publications

Determination of Carmoisine onto Carbon‐Paste Electrode Modified by Silica Impregnated with Cetylpyridinium Chloride

Determination of Carmoisine onto Carbon‐Paste Electrode Modified by Silica Impregnated with Cetylpyridinium Chloride

Sensitive Voltammetric Amoxicillin Sensor Based on TiO₂ Sol Modified by CMK‐3‐type Mesoporous Carbon and Gold Ganoparticles

Applicability of activated carbon obtained from peach stone as an electrochemical sensor for detecting caffeine

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Electrochemical carbon based nanosensors: A promising tool in pharmaceutical and biomedical analysis

Cited by 106 publications

References 240 publications

Determination of Carmoisine onto Carbon‐Paste Electrode Modified by Silica Impregnated with Cetylpyridinium Chloride

Determination of Carmoisine onto Carbon‐Paste Electrode Modified by Silica Impregnated with Cetylpyridinium Chloride

Sensitive Voltammetric Amoxicillin Sensor Based on TiO2 Sol Modified by CMK‐3‐type Mesoporous Carbon and Gold Ganoparticles

Applicability of activated carbon obtained from peach stone as an electrochemical sensor for detecting caffeine

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Sensitive Voltammetric Amoxicillin Sensor Based on TiO₂ Sol Modified by CMK‐3‐type Mesoporous Carbon and Gold Ganoparticles