title: pH track of expanding bacterial populations.
abstract: A method of pH distribution measurements in agar nutrient media containing expanding bacterial populations is described. It is based on measuring pH microsamples taken at different points of the media. The sample volume was 10 microliters. A pH sensitive field effect transistor was used as a measuring electrode. Acidification was found to occur in glucose media, while alkalization occurred in the media containing peptone.
authors.affiliation: Institute of Radioengineering, Electronics and Automation of Moscow, Russia.
authors.forename: A N
authors.initials: AN
authors.lastname: Reshetilov
authors.forename: A B
authors.initials: AB
authors.lastname: Medvinsky
authors.forename: T P
authors.initials: TP
authors.lastname: Eliseeva
authors.lastname: Shakhbazian VYu
authors.forename: M A
authors.initials: MA
authors.lastname: Tsyganov
authors.forename: A M
authors.initials: AM
authors.lastname: Boronin
authors.forename: G R
authors.initials: GR
authors.lastname: Ivanitsky
mesh_terms: D001431:Bacteriological Techniques / Q000295:instrumentation; D003470:Culture Media; D004926:Escherichia coli / Q000254:growth & development*; D006863:Hydrogen-Ion Concentration
chemical_list: D003470:Culture Media