development of electrochemical inhibition biosensor based on bacteria for detection of environmental pollutants

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ID: 180462
2017
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Abstract
The main aim of this work is to develop a simple inhibition electrochemical sensor array for detection of heavy metals using bacteria. A series of electrical measurements (cyclic voltammograms) were carried out on samples of two types of bacteria, namely Escherichia coli and Shewanella oneidensis along with optical measurements (fluorescence microscopy, optical density, and flow cytometry) for comparison purposes. As a first step, a correlation between DC electrical conductivity and bacteria concentration in solution was established. The study of the effect of heavy metal ions (Hg2+) on DC electrical characteristics of bacteria revealed a possibility of pattern recognition of inhibition agents. Electrical properties of bacteria in solution were compared to those for immobilized bacteria. Keywords: Inhibition biosensor, Escherichia coli, Shewanella oneidensis, Optical measurements, Electrochemical measurements, Cyclic voltammogram
Reference Key
abu-ali2017sensingdevelopment Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;H. Abu-Ali;A. Nabok;T. Smith;M. Al-Shanawa
Journal crystals
Year 2017
DOI
DOI not found
URL
http://www.sciencedirect.com/science/article/pii/S221418041630157X
Keywords
engineering (general) civil engineering (general)

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