Abstract
Freestanding single-wall carbon nanotube (SWNT) films with large area were synthesized by the floating chemical vapor deposition technique. A glucose sensor was constructed using the SWNT films for direct oxidation of glucose in alkaline solution. The SWNT film electrode showed a high and reproducible sensitivity of 248.6 μA/cm 2 mM to glucose with a response time of less than 10 s in 0.1 M alkaline solution, even in the presence of 0.2 M chloride ions. These results demonstrate that the SWNT films have potential applications in constructing highly sensitive, stable, and fast response glucose sensors without enzyme loading. © 2007 The Electrochemical Society. [DOI: 10.1149/1.2710184] All rights reserved.
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