Universität zu Köln

Zituni, Dunya, Schuett-Gerowitt, Heidi, Kopp, Marion, Kroenke, Martin, Addicks, Klaus, Hoffmann, Christian, Hellmich, Martin, Faber, Franz and Niedermeier, Wilhelm (2014). The growth of Staphylococcus aureus and Escherichia coli in low-direct current electric fields. Int. J. Oral Sci., 6 (1). S. 7 - 15. LONDON: NATURE PUBLISHING GROUP. ISSN 2049-3169

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Abstract

Electrical potentials up to 800 mV can be observed between different metallic dental restorations. These potentials produce fields in the mouth that may interfere with microbial communities. The present study focuses on the impact of different electric field strengths (EFS) on the growth of Staphylococcus aureus (ATCC 25923) and Escherichia coli (ATCC 25922) in vitro. Cultures of S. aureus and E. coli in fluid and gel medium were exposed to different EFS. Effects were determined by calculation of viable counts and measurement of inhibition zones. In gel medium, anodic inhibition zones for S. aureus were larger than those for E. coli at all field strength levels. In fluid medium, the maximum decrease in the viable count of S. aureus cells was at 10 V center dot m(-1). Field-treated S. aureus cells presented ruptured cell walls and disintegrated cytoplasm. Conclusively, S. aureus is more sensitive to increasing electric field strength than E. coli.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Zituni, Dunya UNSPECIFIED UNSPECIFIED UNSPECIFIED Schuett-Gerowitt, Heidi UNSPECIFIED UNSPECIFIED UNSPECIFIED Kopp, Marion UNSPECIFIED UNSPECIFIED UNSPECIFIED Kroenke, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED Addicks, Klaus UNSPECIFIED UNSPECIFIED UNSPECIFIED Hoffmann, Christian UNSPECIFIED UNSPECIFIED UNSPECIFIED Hellmich, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED Faber, Franz UNSPECIFIED UNSPECIFIED UNSPECIFIED Niedermeier, Wilhelm UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-444831
DOI:	10.1038/ijos.2013.64
Journal or Publication Title:	Int. J. Oral Sci.
Volume:	6
Number:	1
Page Range:	S. 7 - 15
Date:	2014
Publisher:	NATURE PUBLISHING GROUP
Place of Publication:	LONDON
ISSN:	2049-3169
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language BACTERIAL; BIOFILMS; CELLS; INHIBITION; CORROSION; EXPOSURE; ADHESION Multiple languages Dentistry, Oral Surgery & Medicine Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/44483