Electrospun Ru(bpy)(3)(2+)-doped nafion nanofibers for electrochemiluminescence sensing
Zhou, C; Liu, Z; Dai, J; Xiao, Dan
| HERO ID | 2866184 |
|---|---|
| In Press | No |
| Year | 2010 |
| Title | Electrospun Ru(bpy)(3)(2+)-doped nafion nanofibers for electrochemiluminescence sensing |
| Authors | Zhou, C; Liu, Z; Dai, J; Xiao, Dan |
| Journal | Analyst |
| Volume | 135 |
| Issue | 5 |
| Page Numbers | 1004-1009 |
| Abstract | Electrospun Ru(bpy)(3)(2+)-doped Nafion (ERDN) nanofibers were successfully fabricated by a one-step electrospinning technique. The diameters of the nanofibers range from 120 nm to 220 nm. The ERDN nanofibers, evenly distributed on the substrate with their random orientations, form a porous 3-D structure nanofibrous membrane. Compared to continuous thin films, the obtained nanofibrous membrane maintains a higher surface-area-to-volume ratio, a larger amount of immobilized-Ru(bpy)(3)(2+), and a better stability of the Ru(bpy)(3)(2+) immobilization. As a result, the nanofibers' ECL signal is enhanced approximately 15-fold and stable (does not change during continuous CV scans for 50 cycles). As a sensing platform, the nanofibers can sensitively detect low concentration phenolic compounds by monitoring the phenol-dependent ECL intensity change. The detection limit for phenol is 1.0 nM based on a signal/noise ratio >3, which is comparable or better than that in reported phenol assays. In addition, the nanofibers exhibit excellent ECL behaviors on Au, Pt, GC and ITO electrodes. A great potential for ERDN nanofibers-based ECL sensors is offered. |
| Doi | 10.1039/b923031a |
| Pmid | 20419249 |
| Wosid | WOS:000277037500022 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |