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Updated: Jun 10, 2025
Development of an Electrochemical DNA Biosensor to Detect a Foodborne Pathogen
Published on: June 3, 2018
Advanced electrochemical detection of carbendazim in staple food samples using cobalt hydroxide/titanium dioxide
Sharmila Tharuman1, Nandini Nataraj1, Shen-Ming Chen1
1Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan.
Abstract:
This research introduces a novel composite material, cobalt hydroxide/titanium dioxide (Co(OH)2/TiO2), engineered for the detection of the fungicide carbendazim (CBZ) in environmental samples. A glassy carbon electrode (GCE) was modified with Co(OH)2/TiO2 to create an electrochemical sensor capable of highly sensitive CBZ detection. Differential pulse voltammetry was utilized to quantify various CBZ concentrations, revealing that the Co(OH)2/TiO2-GCE sensor provided robust response signals across a concentration range from 0.039 μM to 2630.1 μM, with a detection limit of 0.007 μM. The sensor demonstrated notable stability, reproducibility, and selectivity towards CBZ, attributable to the synergistic effects of Co(OH)2/TiO2. Additionally, the Co(OH)2/TiO2-GCE sensor proved effective for analyzing CBZ in fruit and vegetable samples. Thus, this sensor presents significant potential for widespread application in environmental monitoring and food safety assessments.
