Fabrication of single walled-carbon nanotubes based pH sensor using ultra-precision spray

Jae Hong Kwon, Kyong S. Lee, Byeong Kwon Ju

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)1479-1482
Number of pages4
JournalKey Engineering Materials
Volume326-328 II
Publication statusPublished - 2006 Dec 6

Fingerprint

pH sensors
Single-walled carbon nanotubes (SWCN)
Hydroxyl Radical
Amperometric sensors
Fabrication
Biosensors
Chemical reactions
Buffers
Throughput
Monitoring
Sensors

Keywords

  • Electrochemical sensor
  • Hydroxyl radical
  • PH
  • Single walled-carbon nanotube
  • Ultraprecision spray

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Ceramics and Composites

Cite this

Fabrication of single walled-carbon nanotubes based pH sensor using ultra-precision spray. / Kwon, Jae Hong; Lee, Kyong S.; Ju, Byeong Kwon.

In: Key Engineering Materials, Vol. 326-328 II, 06.12.2006, p. 1479-1482.

Research output: Contribution to journalArticle

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