NDLI: A bacterial spore model of pulsed electric fields on spore morphology change revealed by simulation and SEM

Content Provider	IEEE Xplore Digital Library
Author	Xing Qiu Yin Tung Lee Pun To Yung
Copyright Year	2014
Description	Author affiliation: Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, China (Xing Qiu; Yin Tung Lee; Pun To Yung)
Abstract	A two-layered spore model was proposed to analyze morphological change of bacterial spores subjected under pulsed electric fields. The outer layer, i.e. spore coat, was defined by Mooney-Rivlin hyper-elastic material model. The inner layer, i.e. peptidoglycan and spore core, was modeled by applying additional adhesion forces. The effect of pulsed electric fields on surface displacement was simulated in COMSOL Multiphysics and verified by SEM. The electro-mechanical theory, considering spore coat as a capacitor, was used to explain concavity; and the thin viscoelastic film theory, considering membrane bilayer as fluctuating surfaces, was used to explain leakage forming. Mutual interaction of external electric fields, charged spores, adhesion forces and ions movement were all predicted to contribute to concavity and leakage.
Sponsorship	IEEE Eng. Med. Biol. Soc.
Starting Page	6822
Ending Page	6825
File Size	834277
Page Count	4
File Format	PDF
ISBN	9781424479290
ISSN	1557170X
DOI	10.1109/EMBC.2014.6945195
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-08-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electric fields Microorganisms Surface treatment Surface morphology Ions Electric breakdown Shape
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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