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https://open.uns.ac.rs/handle/123456789/32404
Title: | Synthesis and Characterization of Tin Oxide Nanopowder and Its Application to Sensing Different Pathogens | Authors: | Chandran, Akhil Bajac, Branimir Filipič, Gregor Cvejić, Željka Srdić, Vladimir Radovanović, Milan Simić, Mitar Sarang, Sohail Stojanović, Goran |
Keywords: | SnO2 nanopowder;sensor;impedance spectroscopy;pathogen detection | Issue Date: | 8-Feb-2021 | Publisher: | MYU Tokyo | Project: | H2020 AQUASENSE | Journal: | Sensors and Materials | Abstract: | In this paper, we discuss the processing, fabrication, and characterization of tin oxide (SnO2)-based sensors for the detection of different pathogens. The sensing properties of SnO2 coatings sintered at three different temperatures (600, 700, and 800 °C) were demonstrated by impedance microbiology. Sensors for the detection of Candida albicans and Pseudomonas aeruginosa were manufactured in the form of an interdigitated capacitor (IDC) structure. Electrochemical analysis revealed a change in impedance and a shift in self-resonant frequency (SRF) when the sensor was exposed to bacteria or yeast/fungi media. Structural and morphological characterizations of the nanostructured sensing films were carried out by various analytical techniques including X-ray diffraction, Raman spectroscopy, transmission electron microscopy (TEM), and scanning electron microscopy. The obtained results are promising for the fabrication of robust, cost-effective, and nontoxic SnO2-based sensors for detecting various pathogens. | URI: | https://open.uns.ac.rs/handle/123456789/32404 | ISSN: | 09144935 | DOI: | https://doi.org/10.18494/SAM.2021.3090 | Rights: | Attribution-NonCommercial-NoDerivs 3.0 United States |
Appears in Collections: | FTN Publikacije/Publications TF Publikacije/Publications |
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SM2472.pdf | 2.53 MB | Adobe PDF | View/Open |
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