Electrochemiluminescence from hydrophilic thin film Ru(bpy)32+-modified electrode prepared using natural halloysite nanotubes and polyacrylamide gel
Xing, B; Yin, XB
| HERO ID | 592186 |
|---|---|
| In Press | No |
| Year | 2009 |
| Title | Electrochemiluminescence from hydrophilic thin film Ru(bpy)32+-modified electrode prepared using natural halloysite nanotubes and polyacrylamide gel |
| Authors | Xing, B; Yin, XB |
| Journal | Biosensors and Bioelectronics |
| Volume | 24 |
| Issue | 9 |
| Page Numbers | 2939-2942 |
| Abstract | Because Ru(bpy)32+-modified electrodes are often used in aqueous condition, the development of a hydrophilic modified electrode is of critical importance. Herein a hydrophilic, thin film Ru(bpy)32+-modified electrode is successfully developed using polyacrylamide gel to embed halloysite nanotubes on the electrode surface which is used to adsorb Ru(bpy)32+ by cation-exchange. X-ray photoelectron spectroscopy demonstrates the formation of the film on an electrode and the high adsorbing capacity of the halloysite nanotubes toward Ru(bpy)32+. The different electrochemiluminescence (ECL) behaviors of the electrode using nitrilotriacetic acid and tripropylamine, as co-reactants, illustrate the hydrophilic character of the modified electrode. Contrary to the previous works, the addition of carbon nanotubes into the modified electrode film leads to a decreased ECL emission, due to the reduction in the porosity of the film, which hinders the diffusion of the analyte. |
| Doi | 10.1016/j.bios.2009.02.011 |
| Pmid | 19285852 |
| Wosid | WOS:000266192900031 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | Electrochemiluminescence; Ru(bpy)32+-modified electrode; Polyacrylamide gel; Halloysite nanotube |
| Is Qa | No |