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- W3130039968 abstract "We present newly developed electrochemical sensors based on screen-printed carbon electrodes functionalized with HO-BiONO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> , polyethylene glycol coated HO-BiONO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> , and Bi <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>5</sub> O <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>7</sub> NO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> . The performance of these sensors has been studied by cyclic voltammetry experiments and compared in terms of the kinetic rate constant, the sensitivity, and the limit of detection. The polyethylene glycol coated HO-BiONO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> sensor was found with higher oxidation peak current, lower oxidation peak potential, and assured a faster paracetamol reaction due to a higher kinetic rate constant of 42.0 ± 9.8 ms <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>-1</sup> . This sensor also possessed lesser peak-to-peak separation (ΔE <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>p</sub> ) of 243 ± 10 mV with a higher chance of reversible reaction compared to other developed sensors. The polyethylene glycol coated HO-BiONO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> sensor also registered a sensitivity of 43.50 ± 0.54 μA/mM with a relative standard deviation of 1.24 %, which is more than double compared to the bare screen-printed electrode with a limit of detection of 2.24 ± 0.03 μM (R <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sup> = 0.998, n = 3). HO-BiONO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> and Bi <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>5</sub> O <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>7</sub> NO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> sensors also performed much better with slightly higher kinetic rate constant and higher sensitivity than the bare screen-printed electrode sensor." @default.
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- W3130039968 date "2021-05-01" @default.
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- W3130039968 title "Bismuth-Nanocomposites Modified SPCEs for Non-Enzymatic Electrochemical Sensors" @default.
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