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Metallic Free Carbon Nanotube Cluster Modified Screen Printed Electrodes for the Sensing of Nicotine in Artificial Saliva
Authors:Louise Highton  Rashid?O Kadara  Norman Jenkinson  Bill Logan?Riehl  Craig?E Banks
Institution:1. Faculty of Science and Engineering, School of Biology, Chemistry and Health Science, Division of Chemistry and Materials, Manchester Metropolitan University, Chester Street, Manchester M1?5GD, Lancs, UK;2. SCNTE USA, 2000 Composite Drive, Dayton, Ohio, 45420, USA
Abstract:We demonstrate that metallic free carbon nanotube cluster modified screen printed electrodes provide an advantageous sensing methodology for nicotine. The electrochemical oxidation of nicotine is possible at low potentials compared to other commercially available carbon electrodes. Using the carbon nanotube cluster modified screen printed electrodes a detection range of 10 to 1000 μM is possible with a limit of detection of 2 μM. The sensing protocol is shown to be viable in artificial saliva and is promising as a portable and rapid sensor for nicotine in oral fluid (saliva) in areas such as health/life insurance, instances where smoking is banned and also as a point of care test to help improve smoking quit rates.
Keywords:Carbon nanotubes  Nicotine  Screen printed electrodes  Nanotubes  Medicinal chemistry
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