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

ABU-ALI, H., NABOK, Aleksey, SMITH, T and AL-SHANAWA, M (2016). Development of electrochemical inhibition biosensor based on bacteria for detection of environmental pollutants. Sensing and Bio-Sensing Research, 13, 109-114.

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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Link to published version:: https://doi.org/10.1016/j.sbsr.2016.10.007
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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.

    Item Type: Article
    Research Institute, Centre or Group - Does NOT include content added after October 2018: Materials and Engineering Research Institute > Thin Films Research Centre > Electronic Materials and Sensors Research Group
    Identification Number: https://doi.org/10.1016/j.sbsr.2016.10.007
    Page Range: 109-114
    Depositing User: Carmel House
    Date Deposited: 04 Jan 2017 15:51
    Last Modified: 18 Mar 2021 00:55
    URI: http://shura.shu.ac.uk/id/eprint/14517

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