Highly sensitive and simultaneous determination of hydroquinone and catechol at poly(thionine) modified glassy carbon electrode

Ahammad, A. J. Saleh; Rahman, Md. Mahbubur; Xu, Guangri; Kim, Sung-Hyun; Lee, Jae‐Joon

doi:10.1016/j.electacta.2011.03.004

Cited by 183 publications

(112 citation statements)

References 45 publications

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“…Although the electrochemical detection method is simple and cost-effective, [8][9][10] it often requires undesirably high overvoltage for voltammetric oxidation/reduction of NO 2 − , which in turn causes significant interference by other readily oxidized compounds (e.g., Ca Therefore, the preparation of electrodes modified by Au would be a promising strategy to decrease the oxidation/ reduction overpotential 12 for many applications that require high catalytic activities at electrodes; it would also be very useful when thin and transparent conducting oxides (TCOs) are used as substrates for electrode preparation. TCOs such as indium tin oxide (ITO) and fluorine-doped tin oxide (FTO) are already used in a wide variety of applications for biosensors, display devices, and many solar energy conversion systems.…”

Section: -7mentioning

confidence: 99%

Electrodeposition of Gold on Fluorine-Doped Tin Oxide: Characterization and Application for Catalytic Oxidation of Nitrite

Rahman¹,

Li²,

Lopa³

et al. 2014

Bulletin of the Korean Chemical Society

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Section: -7mentioning

confidence: 99%

Electrodeposition of Gold on Fluorine-Doped Tin Oxide: Characterization and Application for Catalytic Oxidation of Nitrite

Rahman¹,

Li²,

Lopa³

et al. 2014

Bulletin of the Korean Chemical Society

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“…27 Njagy et al developed a novel implantable enzyme-based carbon fiber biosensor which was fabricated by using tyrosinase immobilized on matrix composed of biopolymer, chitosan and ceria-based metal oxides deposited onto carbon fiber microelectrode. 28 Ahammad et al 29 used glassy carbon electrode modified with poly(thionine) as a simple and sensitive electrochemical method for the detection of hydroquinone and catechol. Wang et al 30 proposed a biosensor constructed by the electrodeposition of Au-clusters on poly (3-amino-5-mercapto-1,2,4-triazole) (p-TA) film on glassy carbon electrode used for dopamine, ascorbate, uric acid and nitrite detection.…”

Section: F556mentioning

confidence: 99%

Sandwich Biobattery with Enzymatic Cathode and Zinc Anode Integrated with Sensor

Majdecka

Dramińska

Stolarczyk

et al. 2015

J. Electrochem. Soc.

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Carbon paper covered with side-naphthylated multi-walled carbon nanotubes was used as the conducting support for the construction of a biocathode in a hybrid biofuel cell (biobattery). Laccase Cerrena unicolor enzyme was employed as the catalyst for the 4e reduction of oxygen and a zinc disc covered with hopeite was used as the anode. Derivatized carbon nanotubes increase the working surface of the electrode and provide direct contact with the active sites of laccase. Biobattery characteristics under externally applied resistance, and power-time dependencies under flow cell conditions were evaluated. The system including the sandwich biobattery powering a dedicated two-electrode minipotentiostat with a simple sensor electrode was employed for monitoring a model neurotransmitter-catechol. The biobattery-powered sensor yielded the oxidation currents linearly dependent on catechol concentration in the range 0-2 mM and with a correlation coefficient of 0.998. This type of biobattery with laccase as the cathode catalyst can be integrated with analytical devices and power them even in long-time monitoring experiments. Biofuel cells (BFC) and hybrid biofuel cells (biobatteries) have several advantages over conventional fuel cells, e.g. they use enzymesvery efficient catalysts to transform chemical energy to electrical energy. The attractiveness of biofuel cells is due to possibilities of variety of applications of high energy density biofuels such as ethanol, glycerol and carbohydrates, work at room temperatures, at pH close to neutral and the products of reactions are environmentally-friendly. [1][2][3][4] Enzymes are also less expensive than metallic catalysts used in conventional fuel cells and additionally are specific and selective, therefore do not require membrane separating electrode compartments. The biofuel cell can work as open-type device, and can be easily miniaturized. 4 Initial market opportunities for biofuel cells are likely to be where there is a need for large amounts of energy but low power demands. This is because biofuel cells can achieve high efficiencies for oxidizing a given fuel, providing high energy density, but have lower power densities due to lower catalytic activity compared to metal catalyst based fuel cells.3 An important area of applications of the biofuel cells is powering electronic devices, e.g. clocks, timers or toys, small medical devices such as biosensors and drug delivery systems. 5-9The number of enzyme molecules that can be directly bound to the conductive support is rather low, due to their large size leading to small surface concentration of catalytic active sites per electrode geometric area. Therefore application of a three dimensional conductive matrix is required. Carbon nanotubes increase the working surface area of the electrode and improve conductivity of the film. Furthermore, carbon nanotubes modified with different aryl groups provide easier access to the enzyme active sites and allow working in the direct electron transfer regime without any mediators. [10][11][...

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“…12) Meanwhile, the modification of a bare glassy carbon electrode (GCE) with conducting polymers (CPs), 12) carbon nanotube (CNT), 1) and metal oxide 13) offered potential benefits in the context of selectivity, sensitivity, and fast electron transfer kinetics.…”

Section: )mentioning

confidence: 99%

“…With the increase of the pH of the co-solutions of RT and MT, both the reduction peaks were shifted negatively, and maximized the reduction J peak at pH 7.0. Considering the physiological pH, interference which occurs at more negative potential and the nitrogen containing functional group of PTH which may become deprotonated and possesses negative charges at higher pH, 12,15) and the highest reduction J peak , pH 7.0 was chosen for the simultaneous detection of RT and MT. Fig.…”

Section: Effect Of Phmentioning

confidence: 99%

Simultaneous Determination of Ranitidine and Metronidazole at Poly(thionine) Modified Anodized Glassy Carbon Electrode

Rahman¹,

Li²,

Jeon³

et al. 2012

Journal of Electrochemical Science and Technology

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:A simple and sensitive electrochemical sensor for simultaneous and quantitative detection of ranitidine (RT) and metronidazole (MT) was developed, based on a poly(thionine)-modified anodized glassy carbon electrode (PTH/GCE). The modified electrode showed the excellent electrocatalytic activity towards the reduction of both RT and MT in 0.1 M phosphate buffer solution (PBS, pH 7.0). The peak-to-peak separations (∆E p ) for the simultaneous detection of RT and MT between the two reduction waves in CV and DPV were increased significantly from ca. 100 mV at anodized GCE, to ca. 550 mV at the PTH/GCE. The reduction peak currents of RT and MT were linear over the range from 35 to 500 µM in the presence of 200 and 150 µM of RT and MT, respectively. The sensor showed the sensitivity of 0.58 and 0.78 µA/cm 2 /µM with the detection limits (S/N = 3) of 1.5 and 0.96 µM, respectively for RT and MT.

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Highly sensitive and simultaneous determination of hydroquinone and catechol at poly(thionine) modified glassy carbon electrode

Cited by 183 publications

References 45 publications

Electrodeposition of Gold on Fluorine-Doped Tin Oxide: Characterization and Application for Catalytic Oxidation of Nitrite

Electrodeposition of Gold on Fluorine-Doped Tin Oxide: Characterization and Application for Catalytic Oxidation of Nitrite

Sandwich Biobattery with Enzymatic Cathode and Zinc Anode Integrated with Sensor

Simultaneous Determination of Ranitidine and Metronidazole at Poly(thionine) Modified Anodized Glassy Carbon Electrode

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