Abstract
The concentration of the hydroxyl radical is a critical parameter to be measured for monitoring the condition of aqueous biological species, or for predicting the path of chemical reactions. This paper describes a novel method for fabricating a very simple and fast response pH sensor compose of single walled-carbon nanotubes (SW-CNTs) using an ultra-precision spray. Such CNT-based sensor shows amperometric response in buffer solution at different hydroxyl radical concentrations and electrical conductance of SW-CNTs depends on the pH value. Our results suggest that sprayed CNT sensors are potential candidates as biosensors in future large-scale throughput devices.
| Original language | English |
|---|---|
| Pages (from-to) | 1479-1482 |
| Number of pages | 4 |
| Journal | Key Engineering Materials |
| Volume | 326-328 II |
| DOIs | |
| Publication status | Published - 2006 |
Keywords
- Electrochemical sensor
- Hydroxyl radical
- PH
- Single walled-carbon nanotube
- Ultraprecision spray
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering