A Novel Electrochemical Sensor Based on Graphene Oxide Decorated with Silver Nanoparticles–Molecular Imprinted Polymers for Determination of Sunset Yellow in Soft Drinks

Qin, Changchun; Guo, Wei; Liu, Yan; Liu, Zhanchao; Qiu, Jian; Jin, Peng

doi:10.1007/s12161-016-0753-6

Cited by 38 publications

(20 citation statements)

References 47 publications

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“…Silver nanoparticles have been intensively investigated during the past decade in electrochemical sensing of many species like antioxidants, dyes, and drugs and especially hydrogen peroxide . They show diversity of electrochemical and chemical reactions useful for distinguishing various analytes.…”

Section: Introductionmentioning

confidence: 99%

Glassy Carbon Electrode Modified with Silver Nanodendrites Implemented in Polylactide‐Thiacalix[4]arene Copolymer for the Electrochemical Determination of Tryptophan

et al. 2017

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Glassy carbon electrode (GCE) was modified by new polymeric materials obtained from oligolactides by cross‐linking with tetracarboxylated thiacalix[4]arene in cone, partial cone and 1,3‐alternate configurations and then silver was deposited by potential cycling in the pores of the polymer film. The modified electrode showed highly sensitive and selective signal toward tryptophan which was irreversibly oxidized on the coating due to Ag+ assisted accumulation in the surface layer. The role of macrocycle configuration and conditions for Ag nanodendrites formation are described. Granulation of the polymer films caused by the macrocycles improves both the conditions for silver deposition and tryptophan determination. The electrochemical sensor developed makes it possible to determine from 0.1 to 100 μM of tryptophan with the limit of detection down to 0.03 μM. No interference with oxidation of other amino acids (phenylalanine, histidine, cysteine and tyrosine) was found. The electrochemical sensor developed was validated in the determination of tryptophan sedative medication “Formula of calmness” in the presence of vitamins B5 and B6.

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Section: Introductionmentioning

confidence: 99%

Glassy Carbon Electrode Modified with Silver Nanodendrites Implemented in Polylactide‐Thiacalix[4]arene Copolymer for the Electrochemical Determination of Tryptophan

et al. 2017

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“…The linear ranges and LOD of the proposed Cu 2 O-ErGO/GCE are at least comparable to and even better than most of the previous reports. Moreover, Cu 2 O-ErGO/GCE have outstanding advantages over noble metal modified electrodes (such as Au NPs/CPE [ 7 ], Au-Pd-RGO/GCE [ 17 ], CTAB-Gr-Pt/GCE [ 44 ], GO/AgNPs-MIPs/GCE [ 45 ] and PDDA-Gr-Pd/GCE [ 47 ] in terms of the cost and electrode fabrication.…”

Section: Resultsmentioning

confidence: 99%

Novel Electrochemical Sensors Based on Cuprous Oxide-Electrochemically Reduced Graphene Oxide Nanocomposites Modified Electrode toward Sensitive Detection of Sunset Yellow

Liu

et al. 2018

Molecules

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Control and detection of sunset yellow is an utmost demanding issue, due to the presence of potential risks for human health if excessively consumed or added. Herein, cuprous oxide-electrochemically reduced graphene nanocomposite modified glassy carbon electrode (Cu2O-ErGO/GCE) was developed for the determination of sunset yellow. The Cu2O-ErGO/GCE was fabricated by drop-casting Cu2O-GO dispersion on the GCE surface following a potentiostatic reduction of graphene oxide (GO). Scanning electron microscope and X-ray powder diffractometer was used to characterize the morphology and microstructure of the modification materials, such as Cu2O nanoparticles and Cu2O-ErGO nanocomposites. The electrochemical behavior of sunset yellow on the bare GCE, ErGO/GCE, and Cu2O-ErGO/GCE were investigated by cyclic voltammetry and second-derivative linear sweep voltammetry, respectively. The analytical parameters (including pH value, sweep rate, and accumulation parameters) were explored systematically. The results show that the anodic peak currents of Cu2O-ErGO /GCE are 25-fold higher than that of the bare GCE, due to the synergistic enhancement effect between Cu2O nanoparticles and ErGO sheets. Under the optimum detection conditions, the anodic peak currents are well linear to the concentrations of sunset yellow, ranging from 2.0 × 10−8 mol/L to 2.0 × 10−5 mol/L and from 2.0 × 10−5 mol/L to 1.0 × 10−4 mol/L with a low limit of detection (S/N = 3, 6.0 × 10−9 mol/L). Moreover, Cu2O-ErGO/GCE was successfully used for the determination of sunset yellow in beverages and food with good recovery. This proposed Cu2O-ErGO/GCE has an attractive prospect applications on the determination of sunset yellow in diverse real samples.

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“…Molecularly imprinted polymers (MIPs) have been reported as excellent recognition elements for electrochemical sensors. An innovative sensor based on graphene oxide- and AgNPs-enhanced GCE was prepared using imprinting technology, with Sunset Yellow as the template molecule ( 68 ). Evaluated in the presence of Tartrazine, Amaranth, Brilliant Blue G and ascorbic acid as interfering agents, this sensor exhibited great selectivity towards the azo-dye, and was successfully applied for detection in soft drinks.…”

Section: Electrochemical Sensorsmentioning

confidence: 99%

Recent Advances in (Bio)Chemical Sensors for Food Safety and Quality Based on Silver Nanomaterials

Ivanišević

Milardović

Kassal

2021

Food Technol. Biotechnol. (Online)

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There is a continuing need for tools and devices which can simplify, quicken and reduce the cost of analyses of food safety and quality. Chemical sensors and biosensors are increasingly being developed for this purpose, reaping from the opportunities provided by nanotechnology. Due to the distinct electrical and optical properties of silver nanoparticles (AgNPs), this material plays a vital role in (bio)sensor development. This review is an analysis of chemical sensors and biosensors based on silver nanoparticles with application in food and beverage matrices. It consists of academic research published from 2015 to 2020. The paper is structured to separately explore the designs of two major (bio)sensor classes: electrochemical (including voltammetric and impedimetric sensors) and optical sensors (including colorimetric and luminescent), with special focus on the type of silver nanomaterial and its role in the sensor system. The review indicates that diverse nanosensors have been developed, capable of detecting analytes such as pesticides, mycotoxins, fertilizers, microorganisms, heavy metals, and various additives with exceptional analytical performance. Current trends in the design of such sensors are highlighted and challenges which need to be overcome in the future are discussed.

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A Novel Electrochemical Sensor Based on Graphene Oxide Decorated with Silver Nanoparticles–Molecular Imprinted Polymers for Determination of Sunset Yellow in Soft Drinks

Cited by 38 publications

References 47 publications

Glassy Carbon Electrode Modified with Silver Nanodendrites Implemented in Polylactide‐Thiacalix[4]arene Copolymer for the Electrochemical Determination of Tryptophan

Glassy Carbon Electrode Modified with Silver Nanodendrites Implemented in Polylactide‐Thiacalix[4]arene Copolymer for the Electrochemical Determination of Tryptophan

Novel Electrochemical Sensors Based on Cuprous Oxide-Electrochemically Reduced Graphene Oxide Nanocomposites Modified Electrode toward Sensitive Detection of Sunset Yellow

Recent Advances in (Bio)Chemical Sensors for Food Safety and Quality Based on Silver Nanomaterials

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