Detection of γ-radiation and heavy metals using electrochemical bacterial-based sensor

7th Sensors & their Applications

Al-Shanawa, M.^1,3 ; Nabok, A.^1 ; Hashim, A.^1 ; Smith, T.^2 ; Forder, S.^1

Sheffield Hallam University, Materials and Engineering Research Institute, United Kingdom^1

Sheffield Hallam University, Biomedical Research Centre City Campus, Howard Street, Sheffield, United Kingdom^2

Faculity of Science, University of Basra, Basra, Iraq^3

关键词: AC electrical conductivity;    Bacteria concentrations;    Deinococcus radiodurans;    Electrical characteristic;    Electrical measurement;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/450/1/012025/pdf
DOI  :  10.1088/1742-6596/450/1/012025

来源: IOP

【 摘 要 】

The main aim of this work is to develop a simple electrochemical sensor for detection of γ-radiation and heavy metals using bacteria. A series of DC and AC electrical measurements were carried out on samples of two types of bacteria, namely Escherichia coli and Deinococcus radiodurans. As a first step, a correlation between DC and AC electrical conductivity and bacteria concentration in solution was established. The study of the effect of γ-radiation and heavy metal ions (Cd2+) on DC and AC electrical characteristics of bacteria revealed a possibility of pattern recognition of the above inhibition factors.