A Multiwalled-Carbon-Nanotube-Based Biosensor for Monitoring Microcystin-LR in Sources of Drinking Water Supplies (pages 1807–1816)
Changseok Han, Amos Doepke, Wondong Cho, Vlassis Likodimos, Armah A. de la Cruz, Tyson Back, William R. Heineman, H. Brian Halsall, Vesselin N. Shanov, Mark J. Schulz, Polycarpos Falaras and Dionysios D. Dionysiou
Article first published online: 9 NOV 2012 | DOI: 10.1002/adfm.201201920
An highly sensitive Faradaic electrochemical impedance biosensor for monitoring microcystin-LR (MC-LR) in sources of drinking water supplies is developed using millimeter-long multiwalled carbon nanotube (MWCNT) arrays grown by water-assisted chemical vapor deposition with vertical alignment. A linear sensing response shows a wide microcystin-LR concentration range that is below the World Health Organization (WHO) provisional guideline limit of 1 μg L−1 for MC-LR in drinking water.