Nanomolar electrochemical detection of caffeic acid in fortified wine samples based on gold/palladium nanoparticles decorated graphene flakes

Kokulnathan, Thangavelu; Nehru, Raja; Chen, Shen‐Ming; Liao, Wen Bo

doi:10.1016/j.jcis.2017.04.042

Cited by 86 publications

(30 citation statements)

References 33 publications

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“…Among the modifiers, poly(3,4-ethylenedioxythiophene) (PEDOT), an intrinsically conducting polymer, has received great attention thanks to properties such as good electrochemical stability in aqueous solutions, high electrical conductivity, and antifouling properties [16][17][18]. Aiming to improve the sensitivity of the analytical measurements, various inorganic fillers, mainly metal nanoparticles of Pt and Au, have been incorporated within conducting polymers and PEDOT layers by means of chemical and electrochemical methods [19,20].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensing of Caffeic Acid Using Gold Nanoparticles Embedded in Poly(3,4-ethylenedioxythiophene) Layer by Sinusoidal Voltage Procedure

et al. 2019

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The increasing demand for sensitive electrochemical sensors in various medical and industrial applications promotes the fabrication of novel sensing materials with improved electrocatalytic and analytical performances. This work deals with the development of a composite material based on gold nanoparticles (AuNPs) embedded in poly(3,4-ethylenedioxythiophene) (PEDOT) layer for electrochemical determination of caffeic acid (CA). CA is a phenolic compound with excellent antioxidant properties that is present in vegetables, fruits, and alcoholic and non-alcoholic beverages. Its analytical quantification is of great interest in food production monitoring and healthcare applications. Therefore, the development of sensitive analytical devices for CA monitoring is required. The AuNPs have been prepared in situ onto PEDOT coated glassy carbon electrode (GC) by means of an innovative procedure consisting on the use of a sinusoidal voltage (SV) superimposed on a constant potential. The physico-chemical properties of the PEDOT-AuNPs composite material were investigated by a range of techniques including cyclic voltammetry, electrochemical quartz crystal microbalance, and scanning electron microscopy. The glassy carbon electrode/poly(3,4-ethylenedioxythiophene)-gold nanoparticles-sinusoidal voltage (GC/PEDOT-AuNPs-SV) sensor exhibited good analytical performance toward the CA quantification with a linear response over a wide concentration range from 10 µM to 1 mM. In addition, the proposed GC/PEDOT-AuNPs-SV sensor was successfully applied in the determination of total polyphenols content expressed as equivalents of CA in juice samples.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Sensing of Caffeic Acid Using Gold Nanoparticles Embedded in Poly(3,4-ethylenedioxythiophene) Layer by Sinusoidal Voltage Procedure

et al. 2019

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“…Santos and coworkers fabricated an electrochemical sensor by modifying a glassy carbon electrode (GCE) with a poly(glutamic acid) (PG) film for the electrochemical detection and quantification of CA in red wine [21]. Recently, Thangavelu and coworkers reported on the electrochemical determination of CA using gold and palladium decorated with graphene (Au/Pd/Gr) for the sensitive detection of CA [22]. Yue and coworkers developed an electrochemical sensor using Pd–Au/PEDOT/graphene nanoparticles and investigated its performance for the determination of CA [23].…”

Section: Introductionmentioning

confidence: 99%

Sensitive Electrochemical Detection of Caffeic Acid in Wine Based on Fluorine-Doped Graphene Oxide

Manikandan

Boopathi

Thiruppathi

et al. 2019

Sensors

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We report here a novel electrochemical sensor developed using fluorine-doped graphene oxide (F-GO) for the detection of caffeic acid (CA). The synthesized graphene oxide (GO) and F-GO nanomaterials were systematically characterized with a scanning electron microscope (SEM), and the presence of semi-ionic bonds was confirmed in the F-GO using X-ray photoelectron spectroscopy. The electrochemical behaviours of bare glassy carbon electrode (GCE), F-GO/GCE, and GO/GCE toward the oxidation of CA were studied using cyclic voltammetry (CV), and the results obtained from the CV investigation revealed that F-GO/GCE exhibited the highest electrochemically active surface area and electrocatalytic activity in contrast to the other electrodes. Differential pulse voltammetry (DPV) was employed for the analytical quantitation of CA, and the F-GO/GCE produced a stable oxidation signal over the selected CA concentration range (0.5 to 100.0 μM) with a low limit of detection of 0.018 μM. Furthermore, the acquired results from the selectivity studies revealed a strong anti-interference capability of the F-GO/GCE in the presence of other hydroxycinnamic acids and ascorbic acid. Moreover, the F-GO/GCE offered a good sensitivity, long-term stability, and an excellent reproducibility. The practical application of the electrochemical F-GO sensor was verified using various brands of commercially available wine. The developed electrochemical sensor successfully displayed its ability to directly detect CA in wine samples without pretreatment, making it a promising candidate for food and beverage quality control.

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“…Caffeic acid (CA, 3,4-dihydroxycinnamic acid), a kind of phenolic compound and the major hydroxycinnamic acid presented in human diet, is found in feverfew, coffee beans, teas, wines, and quite a few fruits [9]. CA is important in protecting the cells from induction of cell apoptosis, treating the therapy of leucopenia and thrombocytopenia in clinical diagnosis, and inhibiting the activity of phosphodiesterase (the major ingredient of snake venom) [10]. Furthermore, as the antioxidant, CA has been widely used in cosmetics, hair dyes, antibacterial agent, and anti-mutagen.…”

Section: Introductionmentioning

confidence: 99%

“…Among them, electrochemical detection has gained the most attention due to its stability, sensitivity, and fast response. A majority of reports are focused on carbon material-based nanocomposites, such as graphene-based Au nanoparticles and PEDOT (Au–PEDOT/RGO) [14], MnO 2 -embedded flower-like hierarchical porous carbon microspheres (MnO 2 /CM) [15], and gold/palladium nanoparticles decorated graphene flakes (Au/PdNPs-GRF) [10]. Compared with carbon-based system, Pt-based ones are expected to have even higher electrocatalytic sensitivity, but due to the abovementioned issues, it is seldom used toward CA sensing.…”

Section: Introductionmentioning

confidence: 99%

Ultra-stable Electrochemical Sensor for Detection of Caffeic Acid Based on Platinum and Nickel Jagged-Like Nanowires

et al. 2019

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Electrochemical sensors have the high sensitivity, fast response, and simple operation for applications in biological, medical, and chemical detection, but limited by the poor stability and high cost of the electrode materials. In this work, we used PtNi lagged-like nanowire for caffeic acid (CA) electrochemical detection. The removal of outer layer Ni during reaction process contributed to the rehabilitation of active Pt sites at the surface, leading to the excellent electrocatalytic behavior of CA sensing. Carbon-supported PtNi-modified glassy carbon electrode (PtNi/C electrode) showed a broad CA detecting range (from 0.75 to 591.783 μM), a low detection limit (0.5 μM), and excellent stability. The electrode preserved high electrocatalytic performance with 86.98% of the initial oxidation peak current retained after 4000 potential cycles in 0.5 mM caffeic acid solution. It also demonstrates excellent anti-interference capability and is ready for use in the real sample analysis.Electronic supplementary materialThe online version of this article (10.1186/s11671-018-2839-0) contains supplementary material, which is available to authorized users.

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Nanomolar electrochemical detection of caffeic acid in fortified wine samples based on gold/palladium nanoparticles decorated graphene flakes

Cited by 86 publications

References 33 publications

Electrochemical Sensing of Caffeic Acid Using Gold Nanoparticles Embedded in Poly(3,4-ethylenedioxythiophene) Layer by Sinusoidal Voltage Procedure

Electrochemical Sensing of Caffeic Acid Using Gold Nanoparticles Embedded in Poly(3,4-ethylenedioxythiophene) Layer by Sinusoidal Voltage Procedure

Sensitive Electrochemical Detection of Caffeic Acid in Wine Based on Fluorine-Doped Graphene Oxide

Ultra-stable Electrochemical Sensor for Detection of Caffeic Acid Based on Platinum and Nickel Jagged-Like Nanowires

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