Quantifying the membrane potential during E. coli growth stages
Document Type
Article
Publication Date
2-1-2010
Abstract
The presence of the resting membrane potential has a strong effect on the dielectric behavior of cell suspensions. Using this observation and a well-established theoretical model, the low frequency dielectric dispersion curves of E. coli cell suspensions are de-convoluted to obtain the resting membrane potential of E. coli cells at various growth stages. Four regions of the exponential growth stage are investigated and the measurements indicate that the membrane depolarizes from - 220 mV in the early exponential phase to - 140 mV in the late exponential phase. The conductivity of the cell suspension is also found to decrease as the cells progress from the early to the late exponential phases. © 2009 Elsevier B.V. All rights reserved.
Identifier
72749109322 (Scopus)
Publication Title
Biophysical Chemistry
External Full Text Location
https://doi.org/10.1016/j.bpc.2009.11.005
ISSN
03014622
PubMed ID
20031298
First Page
133
Last Page
137
Issue
2-3
Volume
146
Recommended Citation
Bot, Corina Teodora and Prodan, Camelia, "Quantifying the membrane potential during E. coli growth stages" (2010). Faculty Publications. 6402.
https://digitalcommons.njit.edu/fac_pubs/6402
