Electrode and media impedance for detection and characterization of microorganisms

Author

Futschik, K. ; Pfutzner, H.

Author_Institution

Lab. of Bioelectricity & Magnetism, Vienna Univ. of Technol., Austria

fYear

1995

fDate

15-18 Feb 1995

Firstpage

27395

Lastpage

27760

Abstract

A so-called Impedance Splitting Method is discussed which allows a separation of the impedance Z_M of the culture medium and the impedance Z_E of the electrode system. Z_E shows high sensitivity and yields good results for the initial microorganism concentration also for media of high salt content (e.g. selective media). In many other cases the combined use of Z_M and Z_E offers a more specific detection of microorganisms

Keywords

bioelectric phenomena; biological techniques; cellular biophysics; electric impedance measurement; electrodes; Z_E; Z_M; biophysical technique; culture medium; electrode impedance; electrode system; high salt content media; impedance splitting method; initial microorganism concentration; media impedance; microorganisms characterization; microorganisms detection; selective media; Bioelectric phenomena; Calibration; Electrodes; Fungi; Impedance measurement; Instruments; Magnetic separation; Microorganisms; Shape; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1995 and 14th Conference of the Biomedical Engineering Society of India. An International Meeting, Proceedings of the First Regional Conference., IEEE

Conference_Location

New Delhi

Print_ISBN

0-7803-2711-X

Type

conf

DOI

10.1109/RCEMBS.1995.508697

Filename

508697