Electrochemistry of myoglobin in Nafion and multi-walled carbon nanotubes modified carbon ionic liquid electrode
Sun, W; Li, X; Wang, Y; Li, X; Zhao, C; Jiao, K
| HERO ID | 751034 |
|---|---|
| In Press | No |
| Year | 2009 |
| Title | Electrochemistry of myoglobin in Nafion and multi-walled carbon nanotubes modified carbon ionic liquid electrode |
| Authors | Sun, W; Li, X; Wang, Y; Li, X; Zhao, C; Jiao, K |
| Journal | Bioelectrochemistry |
| Volume | 75 |
| Issue | 2 |
| Page Numbers | 170-175 |
| Abstract | The direct electrochemistry of myoglobin (Mb) entrapped in the Nafion film on a multi-walled carbon nanotubes (MWCNTs) modified carbon ionic liquid electrode (CILE) had been investigated in this paper. By using a hydrophilic ionic liquid of 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIMBF(4)) as the modifier, a high-performance basal electrode was fabricated and further modified by MWCNTs, Mb and Nafion by a step-by-step casting method. Spectroscopic results indicated that the Mb molecule on the surface of MWCNTs/CILE retained its native structure. Cyclic voltammetric results showed that a pair of well-defined quasi-reversible redox peaks appeared in the pH 7.0 phosphate buffer solution (PBS), which was attributed to the direct electron transfer of Mb heme Fe(III)/Fe(II) redox couples with the modified electrode. The Nafion/Mb/MWCNTs/CILE gave excellent electrocatalytic activity towards different substrates including trichloroacetic acid (TCA), hydrogen peroxide (H(2)O(2)) and sodium nitrite (NaNO(2)). |
| Doi | 10.1016/j.bioelechem.2009.03.012 |
| Pmid | 19394899 |
| Wosid | WOS:000267148800014 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Journal: Bioelectrochemistry (Amsterdam, Netherlands) ISSN: 1878-562X |
| Is Public | Yes |
| Language Text | English |
| Keyword | Myoglobin; Multi-walled carbon nanotubes; 1-ethyl-3-methylimidazolium tetrafluoroborate; Direct electron transfer; Carbon ionic liquid electrode |
| Is Qa | No |