Author : Huda Abdullah 1
Date of Publication :21st December 2020
Abstract: The detection of Leptospira bacteria in water using polyaniline (PANI) nanocomposites thin films doped with Fe-Co via sol-gel method is investigated in this research. In this study, the relationship between Leptospira bacteria concentration to current was measured based on current-voltage (I-V) performance. The morphologies of the thin film are characterized using FESEM, TEM and AFM. Based on the results, the developed nanocomposite thin films are compatible to detect the presence of pathogenic Leptospira bacteria. FESEM shows the irregularity of nanoparticles in terms of substrate size which was in the range of 80 nm to 120 nm. AFM image provided a specific morphology structure for Leptospira detection. Precisely, the PANI-Fe0.4-Co0.6 nanocomposite thin film has shown higher sensitivity towards pathogenic Leptospira detection. These results reaffirmed the potentials of Polyaniline-Fe- Co nanocomposite thin films for pathogenic Leptospira bacteria detection in water.
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