120th General Meeting of the KCS

Type Oral Presentation
Area Oral Presentation of Young Scholars in Electrochemistry
Room No. Room 201+202
Time THU 09:15-:
Code ELEC.O-2
Subject Electrochemical Detection of Dopamine using Conducting Polymer/ SrMoO4 Composite
Authors mahmood hassan akhtar, abhijit pandurang jadhav, Yoon Bo Shim*
Department of Chemistry, Pusan National University, Korea
Abstract A highly sensitive and selective dopamine sensor was prepared by conducting polymer/ metal oxide composite. Highly crystalline and spherical shaped strontium molybdate nanostructures were prepared by conventional hydrothermal method using poly(diallyldimethylammonium chloride) as a surfactant. The conducting polymer, TTBA (3’–(p-benzoic acid) – 2,2’:5’2” –terethiophene) / SrMoO4 / Nafion was tested for the selective detection of dopamine. The electro-polymerized composite of conducting polymer /SrMoO4 / Nafion was characterized by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The glassy carbon electrode modified with conducting polymer/ SrMoO4/ Nafion shows high stability and performance for longer time. The dopamine sensor showed a wide dynamic range of 50 nM ~ 2 mM with a detection limit of 20 nM. The proposed sensor exhibited a high selectivity towards the detection of dopamine in the presence of different biological interferences.
E-mail mahmoodhere@gmail.com