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- W2072224478 abstract "Direct electrochemistry of hemoglobin (Hb) entrapped in the dextran (De) film on the surface of a room temperature ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6) modified carbon paste electrode (CILE) has been investigated. UV-Vis and FT-IR spectroscopy showed that Hb retained its native structure in the De film. Scanning electron microscopy (SEM) indicated an uniform film was formed on the electrode surface. Cyclic voltammetric experiments indicated that the electron transfer efficiency between Hb and the electrode was greatly improved due to the presence of the De film and ionic liquid, which provided a biocompatible and higher conductive interface. A pair of well-defined and quasi-reversible redox peak was obtained with the anodic and cathodic peaks located at −0·195 V and −0·355 V in pH 7·0 phosphate buffer solution, respectively. The electrochemical parameters were calculated by investigating the relationship of the peak potential with the scan rate. The fabricated De/Hb/CILE showed good electrocatalytic ability to the reduction of H2O2 with the linear concentration range from 4·0 × 10−6 to 1·5 × 10−5 mol/L and the apparent Michaelis-Menten constant (K M app) for the electrocatalytic reaction was calculated as 0·17 µM." @default.
- W2072224478 created "2016-06-24" @default.
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- W2072224478 date "2010-03-01" @default.
- W2072224478 modified "2023-09-28" @default.
- W2072224478 title "Direct electrochemistry of hemoglobin entrapped in dextran film on carbon ionic liquid electrode" @default.
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- W2072224478 doi "https://doi.org/10.1007/s12039-010-0031-x" @default.
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