Simultaneous determination of ascorbic acid, dopamine and uric acid using high-performance screen-printed graphene electrode

Ping, Jianfeng; Wu, Jian; Wang, Yixian; Ying, Yibin

doi:10.1016/j.bios.2012.01.016

Cited by 386 publications

(99 citation statements)

References 42 publications

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“…The selectivity of the sensor was tested in the presence of strong common interferents in human fluids, ascorbic acid and uric acid that are known to be oxidized at the same potential than dopamine [32]. Thus, the electrochemical response of a 105 M dopamine solution was measured by square wave voltammetry in the presence of uric acid and ascorbic acid in different concentrations (Table 2).…”

Section: Selectivity and Stabilitymentioning

confidence: 99%

Monocopper complex based on N-tripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine

Boulkroune

Lemaire

Chibani

et al. 2016

Electrochimica Acta

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complex based on Ntripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine. Electrochimica Acta, Elsevier, 2016, 221, pp.80-85 AbstractA complex based on bis-pyrazolyl N-tripodal ligand known to present a good catalytic activity for the oxidation of 3,5-di-tert-butylcatechol is used to prepare a novel biomimetic sensor for the determination of catechol derivatives. The modified electrode prepared by encapsulation of the complex in a Nafion ® film leads to an electrochemical signal 4.4 times higher than with a glassy carbon electrode for dopamine detection in pH 7 medium. After optimization of the conditions used to immobilize the catalyst on the electrode surface, a calibration curve was obtained with linearity in the range of 30 to 320 mol L -1 and a detection limit of 8 mol L -1 .The sensor was not affected by ascorbic acid and uric acid in similar concentrations to dopamine and its electrochemical response was stable after 40 determinations. The biomimetic sensor can also be used for the detection of other catechol derivatives.

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Section: Selectivity and Stabilitymentioning

confidence: 99%

Monocopper complex based on N-tripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine

Boulkroune

Lemaire

Chibani

et al. 2016

Electrochimica Acta

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show abstract

“…As can be seen, the linear range, and LOD of the present method were comparable to those reported by others using graphene, polyvinyl alcohol, tryptophan/graphene, porous graphene oxide/gold nanoparticles, LaMnO 3 and graphene/SPCE modified electrodes. 9,21,49,50 The real-world application of our senor (SPCE/CQD) was also tested in human urine samples spiked with known concentration of (3 μM) DA. For this analysis, CVs were recorded in 0.1 M PBS with the addition of various concentrations of diluted urine samples.…”

mentioning

confidence: 99%

Electrochemically Exfoliated Carbon Quantum Dots Modified Electrodes for Detection of Dopamine Neurotransmitter

Devi

Kumar

Sundramoorthy

2018

J. Electrochem. Soc.

113

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A simple electroanalytical method was developed to detect dopamine (DA) neurotransmitter by using carbon quantum dots (CQDs) modified electrode. To synthesis CQDs, a green electrochemical method was adopted and graphite rods were used as anode and cathodes in 0.1 M NaOH/ethanol (EtOH) as the electrolyte solution. As-synthesized CQD showed different particle sizes depending on the applied current with time as characterized by UV-visible spectroscopy. The particle size, lattice structure and functional groups of CQDs were analyzed by the HR-TEM, XRD and FT-IR, respectively. The CQD exhibited a green fluorescence under UV light (365 nm). Moreover, CQD dispersion was used to modify glassy carbon electrode (GCE) and screen-printed carbon electrode (SPCE) to study their electrochemical and electrocatalytic properties. The both GCE/CQD and SPCE/CQD showed higher electrocatalytic activity toward oxidation of dopamine (DA) in phosphate buffered saline (PBS) solution (pH = 7.4). In order to avoid interferences, Nafion (Nf) layer was coated on the CQD film modified electrode. The effect of scan rate on DA oxidation was studied from 10 to 150 mV/s. The calibration curve was recorded for DA from 1 to 7 μM using a SPCE/CQD and the limit of detection was found to be 0.099 μM. The observed electro-catalytic activity of the CQD was attributed to their negatively charged functional groups which attracted positively charged DA in 0.1 M PBS. In addition, detection of DA in spiked human urine sample was demonstrated with satisfactory recovery analysis.

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“…Sheng et al investigated the sensing performance of N‐doped graphene for these molecules and got detection limits of 2.5 × 10 –7 m , 2.2 × 10 –6 m and 4.5 × 10 –8 m , respectively 126. Ping et al introduced a graphene‐based screen‐printing ink which could also show high resolution and sensitivity for detecting these molecules 127. β‐nicotinamide adenine dinucleotide (NADH) is an essential small biomolecule concerned with metabolic process.…”

Section: The Human‐like Senses and Feedbacksmentioning

confidence: 99%

Human‐Like Sensing and Reflexes of Graphene‐Based Films

et al. 2016

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Humans have numerous senses, wherein vision, hearing, smell, taste, and touch are considered as the five conventionally acknowledged senses. Triggered by light, sound, or other physical stimulations, the sensory organs of human body are excited, leading to the transformation of the afferent energy into neural activity. Also converting other signals into electronical signals, graphene‐based film shows its inherent advantages in responding to the tiny stimulations. In this review, the human‐like senses and reflexes of graphene‐based films are presented. The review starts with the brief discussions about the preparation and optimization of graphene‐based film, as where as its new progress in synthesis method, transfer operation, film‐formation technologies and optimization techniques. Various human‐like senses of graphene‐based film and their recent advancements are then summarized, including light‐sensitive devices, acoustic devices, gas sensors, biomolecules and wearable devices. Similar to the reflex action of humans, graphene‐based film also exhibits reflex when under thermal radiation and light actuation. Finally, the current challenges associated with human‐like applications are discussed to help guide the future research on graphene films. At last, the future opportunities lie in the new applicable human‐like senses and the integration of multiple senses that can raise a revolution in bionic devices.

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Simultaneous determination of ascorbic acid, dopamine and uric acid using high-performance screen-printed graphene electrode

Cited by 386 publications

References 42 publications

Monocopper complex based on N-tripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine

Monocopper complex based on N-tripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine

Electrochemically Exfoliated Carbon Quantum Dots Modified Electrodes for Detection of Dopamine Neurotransmitter

Human‐Like Sensing and Reflexes of Graphene‐Based Films

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