Electrical Response of Bacteria Cells in Water as Detection Mechanism

Abdullah Al-Khulaqi, Abdullah Abdulhameed, Yaqub Mahnashi, Yaqub Mahnashi, Yaqub Mahnashi

2025

Abstract

The detection of bacteria in drinking water is considered a critical step for the treatment and quality analysis of water. Escherichia coli and Pseudomonas aeruginosa are among the most common bacteria found in water sources in different regions of Saudi Arabia. The detection is determined by using common biochemical tests and sophisticated machine analysis. These methods are not sustainable for continuous daily detection due to their cost and time consumption. However, the electric characterization and separation of bacteria is a cost-effective and promising approach due to its real-time diagnosis and integration capabilities. This study aims to identify the electric characterization of three strands of bacteria, Escherichia coli, Bacillus cereus, and Pseudomonas aeruginosa, prior to detection. The bacteria are subjected to electric fields with different amplitudes and frequencies on the top of microelectrodes. The movement and resistance of Escherichia coli, Bacillus cereus, and Pseudomonas aeruginosa cells are investigated before and after applying the electric field. The movement and reaction of bacteria are observed under a microscope where a stronger response is noticed at higher signal amplitude. Before applying the electric field, the resistances of the above bacteria are found to be 1.28, 11.85, and 7 MΩ. Then, these values change to 4.6, 19, and 3.65 MΩ, respectively, after applying the electric field. In addition, the separation of bacteria in a mixture of Escherichia coli and Bacillus cereus at different frequencies is also investigated and presented in this paper.

Paper Citation

in Harvard Style

Al-Khulaqi A., Abdulhameed A. and Mahnashi Y. (2025). Electrical Response of Bacteria Cells in Water as Detection Mechanism. In Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES; ISBN 978-989-758-731-3, SciTePress, pages 143-148. DOI: 10.5220/0013149000003911

in Bibtex Style

@conference{biodevices25,
author={Abdullah Al-Khulaqi and Abdullah Abdulhameed and Yaqub Mahnashi},
title={Electrical Response of Bacteria Cells in Water as Detection Mechanism},
booktitle={Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES},
year={2025},
pages={143-148},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013149000003911},
isbn={978-989-758-731-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES
TI - Electrical Response of Bacteria Cells in Water as Detection Mechanism
SN - 978-989-758-731-3
AU - Al-Khulaqi A.
AU - Abdulhameed A.
AU - Mahnashi Y.
PY - 2025
SP - 143
EP - 148
DO - 10.5220/0013149000003911
PB - SciTePress