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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 591-594 |
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Dadfar F, Ansari N, Mohammadimasoudi M, Esmailpour M. The study of identifying E.coli bacteria using a combination of liquid crystal and graphene- iron oxide nanocomposites. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :591-594
URL: http://opsi.ir/article-1-2544-en.html
URL: http://opsi.ir/article-1-2544-en.html
1- Alzahra University
2- Department of Physics, Alzahra University, Tehran, Iran
3- University of Tehran
2- Department of Physics, Alzahra University, Tehran, Iran
3- University of Tehran
Abstract: (862 Views)
The interaction between liquid crystals and graphene-based nanocomposites is of interest for use in biosensors. In this study, E. coli was detected using a combination of liquid crystals and graphene-iron oxide nanocomposites. The nanocomposites are electrochemically prepared and have a saturation magnetization of 44.88 emu/g and its structure includes graphene nanoparticles and iron oxide (Fe2O3). The combination of nanocomposites with liquid crystal is used as a sensing system, and by placing E. coli bacteria on it, the bacterium can be detected using liquid crystal changes. This detection was recorded using a polarized light microscope (POM). The recorded patterns and images showed well that the designed sensing system could detect bacteria in a short time and with high accuracy.
Keywords: Biosensor, E. coli bacteria, Graphene-Iron Oxide Nanocomposite, Liquid Crystal, Sensing Systems
Type of Study: Experimental |
Subject:
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