Optical fiber biosensor toward E-coli bacterial detection on the pollutant water
Document Type
Article
Publication Date
1-1-2021
Abstract
In this study, Zinc oxide (ZnO) nanorods based fiber optic biosensor has been reported for rapid and sensitive detection of Escherichia Coli (E-coli). A thin layer of Gold nanoparticles (Au) (around 50 nm) is coated on the tip of a multimode plastic optical fiber. ZnO Nanorods are grown on Au layer thorough hydrothermal technique. This sensor showed a very fast response within the first 10 second of contacting the present of polluted water with E-coli Different concentrations of E. coli from (1000 to 4000 CFU/ml) have been tested and a sharp trend of sensitivity was observed. This sensing platform shows promising potential for regular water and food quality monitoring of various pathogenic microorganisms. © 2021, Chulalongkorn University, Faculty of Fine and Applied Arts. All rights reserved.
Keywords
Fiber optic biosensor, E. coli bacteria, ZnO nanorods, Gold(Au) nano layer
Divisions
fac_eng
Funders
Airlangga University
Publication Title
Engineering Journal-Thailand
Volume
25
Issue
12
Publisher
Chulalongkorn Univ