Poly(3,4-ethylenedioxythiophene) nanorods grown on graphene oxide sheets as electrochemical sensing platform for rutin

Zhang, Kaixin; Xu, Jingkun; Zhu, Xiaofei; Lu, Limin; Duan, Xuemin; Hu, Dufen; Dong, Liqi; Sun, Hui; Gao, Yansha; Wu, Yao

doi:10.1016/j.jelechem.2014.12.013

Cited by 54 publications

(19 citation statements)

References 40 publications

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“…Possibly the concentration of oxidized species is too low for reduction or it migrates into the bulk solution. Similar results were reported for rutin (Zhang et al 2015) and other flavones like morin (Xiao et al 2006). The effect of the adsorption potential and adsorption time on the adsorptive peak current of rutin at pH 6.0 was studied from −0.2 to 0.2 Vand between 10 and 100 s using cyclic voltammetry.…”

Section: Influence Of the Scan Rates Of Rutin On Smwcnt-pedot-il Elecsupporting

confidence: 69%

“…Some reports confirm that PEDOT facilitates electron transfer to other modified electrodes(Zhang et al 2015) but the electron transfer was affected by the polymeric film (curve A-2). PEDOT on the electrode surface possibly acts as a screen that blocks electron transfer.…”

mentioning

confidence: 81%

“…1, part A) (Zhang et al 2015). In addition, the oxidation potentials of the flavonoids depend on the substituents on rings B and C Guo 2005, 2006).…”

Section: Electrochemical Behavior Of Rutin Using Different Modified Ementioning

confidence: 99%

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Determination of Rutin in Black Tea by Adsorption Voltammetry (AdV) in the Presence of Morin and Quercetin

Nagles

García‐Beltrán

2016

Food Anal. Methods

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This paper presents a sensitive method to rutin determination on a screen-printed multi-walled carbon nanotube electrode modified with poly(3,4-ethylenedioxythiophene) and ionic liquid (SMWCNT-PEDOT-IL). Several studies show that rutin may be absorbed onto the surface of electrodes modified with PEDOT. On the other hand, the presence of ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF 4 ) on the surface of the modified electrode increased the oxidation current by nearly 30 % and facilitates the oxidation of rutin to values less positive potential compared with the modified electrode only with PEDOT. Cyclic voltammetry was used to quantify and characterize the modified electrode. pH and electrochemical parameters, potential adsorption, time adsorption, and scan rate were optimized based on the oxidation of rutin to obtain the following values: pH 6.0; Eads, −0.10 V; tads, 80 s; and scan rate 50 mV s −1 . The detection limit (3σ) was 7.7 × 10 −8 mol L −1 and the RSD was 1.5 %. The new method was used to quantify rutin in black tea samples in the presence of others flavones with consistent results.

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Section: Influence Of the Scan Rates Of Rutin On Smwcnt-pedot-il Elecsupporting

confidence: 69%

mentioning

confidence: 81%

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Determination of Rutin in Black Tea by Adsorption Voltammetry (AdV) in the Presence of Morin and Quercetin

Nagles

García‐Beltrán

2016

Food Anal. Methods

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“…PEDOT functionalized materials are widely used as electrochemical sensors (Nie et al 2013; Zhang et al 2014; Zhang et al 2015). In particular, PEDOT/GO and its PEDOT/reduced GO counterpart have been shown to be effective for the selective chemical sensing of DA on 3mm diameter glassy carbon macroelectrodes using conventional cyclic voltammetry (100 mV/s sweep rate) (Wang et al 2014; Weaver et al 2014b).…”

Section: Introductionmentioning

confidence: 99%

Enhanced dopamine detection sensitivity by PEDOT/graphene oxide coating on in vivo carbon fiber electrodes

Taylor

Robbins

Catt

et al. 2017

Biosensors and Bioelectronics

176

113

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Dopamine (DA) is a monoamine neurotransmitter responsible for regulating a variety of vital life functions. In vivo detection of DA poses a challenge due to the low concentration and high speed of physiological signaling. Fast scan cyclic voltammetry at carbon fiber microelectrodes (CFEs) is an effective method to monitor real-time in vivo DA signaling, however the sensitivity is somewhat limited. Electrodeposition of poly(3,4-ethylene dioxythiophene) (PEDOT)/graphene oxide (GO) onto the CFE surface is shown to increase the sensitivity and lower the limit of detection for DA compared to bare CFEs. Thicker PEDOT/GO coatings demonstrate higher sensitivities for DA, but display the negative drawback of slow adsorption and electron transfer kinetics. The moderate thickness resulting from 25 s electrodeposition of PEDOT/GO produces the optimal electrode, exhibiting an 880% increase in sensitivity, a 50% decrease in limit of detection and minimally altered electrode kinetics. PEDOT/GO coated electrodes rapidly and robustly detect DA, both in solution and in the rat dorsal striatum. This increase in DA sensitivity is likely due to increasing the electrode surface area with a PEDOT/GO coating and improved adsorption of DA’s oxidation product (DA-o-quinone). Increasing DA sensitivity without compromising electrode kinetics is expected to significantly improve our understanding of the DA function in vivo.

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“…According to previous reports, myricetin exhibits anti-oxidant, anti-cancer, and cytoprotective properties [2]. Rutin has a wide range of physiological functions, such as anti-inflammatory, anti-bacterial, antiaging, and anti-oxidation abilities [3]. Because of the above listed pharmacological effects, health foods, drinks, and medicinal herbs usually contain myricetin and rutin.…”

Section: Introductionmentioning

confidence: 99%

Highly sensitive simultaneous electrochemical determination of myricetin and rutin via solid phase extraction on a ternary Pt@r-GO@MWCNTs nanocomposite

Tursynbolat

Bakytkarim

Huang

et al. 2019

Journal of Pharmaceutical Analysis

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a b s t r a c tThe simultaneous electrochemical determination of myricetin and rutin remains a challenge due to their indistinguishable potentials. To solve this problem, we constructed a ternary platinum nanoparticle, reduced graphene oxide, multi-walled carbon nanotubes (Pt@r-GO@MWCNTs) nanocomposite via a facile one-pot synthetic method. Under the optimized conditions, the ternary Pt@r-GO@MWCNTs nanocomposite exhibited good electrocatalytic activity toward myricetin and rutin via solid phase extraction and excellent performance for the simultaneous determination of myricetin and rutin. The oxidation peak current of myricetin was proportional to its concentrations in the range of 0.05e50 mM with a detection limit of 0.01 mM (S/N ¼ 3). The linear range for rutin was 0.05e50 mM with a detection limit of 0.005 mM (S/N ¼ 3). The ternary nanocomposite sensor also exhibited good reproducibility and stability, and was successfully used for the simultaneous determination of myricetin and rutin in real orange juice samples with recoveries ranging between 100.57% and 108.46%.

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Poly(3,4-ethylenedioxythiophene) nanorods grown on graphene oxide sheets as electrochemical sensing platform for rutin

Cited by 54 publications

References 40 publications

Determination of Rutin in Black Tea by Adsorption Voltammetry (AdV) in the Presence of Morin and Quercetin

Determination of Rutin in Black Tea by Adsorption Voltammetry (AdV) in the Presence of Morin and Quercetin

Enhanced dopamine detection sensitivity by PEDOT/graphene oxide coating on in vivo carbon fiber electrodes

Highly sensitive simultaneous electrochemical determination of myricetin and rutin via solid phase extraction on a ternary Pt@r-GO@MWCNTs nanocomposite

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