P1BS.15 - Novel biosensors based on screen printed electrode supported with RuO2@graphene nanoribbons composite: NADH and ethanol sensing
- Event
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria - Chapter
- P-1 - Biosensors
- Author(s)
- D. Stanković, A. Vukadinović, M. Ognjanović, B. Antić - The “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade (Serbia), V. Vukojević, S. Djurdjić - Innovation Center of the Faculty of Chemistry, University of Belgrade,Belgrade (Serbia), K. Kalcher - Institute of Chemistry – Analytical Chemistry, Karl-Franzens University Graz, Graz (Austria)
- Pages
- 503 - 504
- DOI
- 10.5162/IMCS2018/P1BS.15
- ISBN
- 978-3-9816876-9-9
- Price
- free
Abstract
In this work we proposed electrochemical ethanol and NADH biosensor based on screen printed electrode modified with RuO2@graphene nanoribbons composite. Additionally, surface was modified with alcohol dehydrogenase for the preparation of amperometric biosensor for ethanol analysis. Used material was synthesized and characterized using several microstructural (scanning electron microscopy, FTIR, XRD) and electrochemical techniques (CV, EIS). Electrochemical response of tested analyte was investigated as a function of important parameters such as pH, applied working potential, electrode preparation. Under optimal conditions working linear range and limit of detection for ethanol sensing was found to be 1-1800 μM and 0.52 μM, respectively. Moreover, effect of some possible interfering compounds was investigated and developed procedure was tested for application in real samples.