Selective electrochemical determination of dopamine in serum in the presence of ascorbic acid and uric acid by using a CuO nanoleaf electrode

Zheng, Zongfu; Qiu, Huazhang; Zheng, Min; Weng, Shaohuang; Huang, Zhengjun; Xian, Ronghua; Lin, Xinhua

doi:10.1039/c4ay01366b

Cited by 23 publications

(7 citation statements)

References 28 publications

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“…Facile and accurate analysis of DA could greatly benefit the field of physiological function and clinical diagnosis of special neurological diseases. In the past few years, various strategies have been developed for DA detection, including electrochemical methods [15][16][17], enzymatic methods [18], photo-electrochemical sensor [19], and high performance liquid chromatography [20]. However, inherent shortcomings make these methods a bit difficult to satisfy the increasing requirements for simple, reliable, and cost-efficient methods.…”

Section: Introductionmentioning

confidence: 99%

A unique turn-off fluorescent strategy for sensing dopamine based on formed polydopamine (pDA) using graphene quantum dots (GQDs) as fluorescent probe

Weng

Dong

Qiu

et al. 2015

Sensors and Actuators B: Chemical

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a b s t r a c tA rapid, facile fluorescence sensing strategy was developed for dopamine (DA) detection based on polydopamine (pDA) formed on the surface of graphene quantum dots (GQDs). The prepared GQDs were strongly luminescent because of the aromatic planar structure. DA could self-polymerize to pDA and snap to the surface of GQDs to form a thin film in alkaline environment, leading to quenching of fluorescence due to fluorescence resonance energy transfer (FRET). With the optimized conditions, the analytical performance illustrated high sensitivity, selectivity in a wide linear range with a detection limit of 8 nM. In addition, the unique method was successfully applied for DA injection test with satisfactory labeled amount. Finally, the proposed strategy was applied for DA detection in serum, wherein accurate results were obtained.

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Section: Introductionmentioning

confidence: 99%

A unique turn-off fluorescent strategy for sensing dopamine based on formed polydopamine (pDA) using graphene quantum dots (GQDs) as fluorescent probe

Weng

Dong

Qiu

et al. 2015

Sensors and Actuators B: Chemical

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“…[40] Amongst various metal oxides, nanoleaf copper oxide (CuO), a crucial p-type semiconductor metal oxide with a band gap (1.2 eV) has the ability to ease electron transfer responses at a reduced potential leading to direct electro-oxidation of dopamine in serum in the presence of ascorbic acid and uric acid. [44] Cu 2 O-graphene nanocomposite-modified electrode has been developed for the precise detection of dopamine. [45] In this case, dopamine is oxidized by Cu 2 O nanoparticles (average size 60 nm) and the current repsonse and sensitivity are significanly increased due the presence of graphene that facilitated the electron transfer rate and improved the electro-catalytic activity.Similarly, TiO 2 nanoparticles (20-30 nm) have been made nanocomposite with graphene for significant improvement in the electrocatalytic activity of nanocomposite modified glassy carbon electrode (GCE) towards adenine and guanine.…”

Section: Metal Oxide and Zeolite Based Nanostructured Materialsmentioning

confidence: 99%

Electrochemical Sensor Platforms Based on Nanostructured Metal Oxides, and Zeolite‐Based Materials

Prathap

Kaur

Srivastava

2018

The Chemical Record

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Electrochemical sensors have drawn significant attention over the last couple of decades because of their ability to improve detection of organic and inorganic analytes found in the field of biotechnology, environmental sciences, medicine, and food quality control. This personal account summarizes the state‐of‐art research carried out in the construction and evaluation of nanostructured metal oxides and zeolite based electrochemical sensors. Metal oxides and zeolite‐based nanomaterials have many unique and extraordinary properties such as tunable redox activity, surface functionalization ability, optimum conductivity, large surface area, biocompatibility and so forth. In this personal account, the current advances in electrochemical sensor applications of metal oxides, zeolite‐based nanomaterials, and their nanocomposites are described for the single and simultaneous determination of organic & inorganic contaminants present in water bodies, physiological bio‐molecules present in human blood & urine samples, and organic contaminants present in food materials.Moreover, concluding section focuses discussion on the future developments and applications of these materials in various emerging technologies.

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“…In addition to the similar oxidation potentials, fouling of the electrode surface by oxidation product poses a challenge in their accurate quantitative determination . To overcome this obstacle, metal nanoparticles, polymers, and their composites are being explored for their electro‐catalytic effect towards modifying the standard electrode surfaces . Ashoka et al have reported a nanorod TiO 2 modified carbon paste electrode for dopamine with 42 nM limit of detection .…”

Section: Introductionmentioning

confidence: 99%

Copper/Cuprous Oxide Nanoparticles Decorated Reduced Graphene Oxide Sheets Based Platform for Bio‐Electrochemical Sensing of Dopamine

2019

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A rudimentary simple sonochemical approach has been employed for the synthesis of copper/cuprous oxide nanoparticles (Cu/Cu2O NPs) decorated graphene oxide (GO) sheets. Simply, an aqueous dispersion of GO was sonochemically treated with Cu/Cu2O NPs as obtained through a simple electrochemical dissolution method to get the Cu/Cu2O/rGO nanocomposite. The decoration of Cu/Cu2O NPs on GO sheets resulted in the excellent sensing activity of Cu/Cu2O/rGO nanocomposite towards dopamine in the pharmaceutical formulation at the electrode interface due to enhanced electron mobility in GO sheet and high catalytic activity of Cu/Cu2O NPs. The comparison has been laid out based on various characterization techniques viz. powder X‐ray diffraction (PXRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infra‐red (FTIR) spectroscopy and Raman spectroscopy. The fabricated sensor depicted high sensitivity of 0.806 μA/μM for dopamine in a broad linear range of 0.25 –17 μM. Moreover, the remarkable detection limit of 2.6 nM was found for dopamine, and the developed sensor exhibited a wide separation ca. 140 mV between the respective detection peaks of dopamine and uric acid, which is a major interferent in the analysis of dopamine.

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Selective electrochemical determination of dopamine in serum in the presence of ascorbic acid and uric acid by using a CuO nanoleaf electrode

Cited by 23 publications

References 28 publications

A unique turn-off fluorescent strategy for sensing dopamine based on formed polydopamine (pDA) using graphene quantum dots (GQDs) as fluorescent probe

A unique turn-off fluorescent strategy for sensing dopamine based on formed polydopamine (pDA) using graphene quantum dots (GQDs) as fluorescent probe

Electrochemical Sensor Platforms Based on Nanostructured Metal Oxides, and Zeolite‐Based Materials

Copper/Cuprous Oxide Nanoparticles Decorated Reduced Graphene Oxide Sheets Based Platform for Bio‐Electrochemical Sensing of Dopamine

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