f Dielectrophoretic characterization and separation of micro-organisms
- Authors: Gerard H. Markx1, Ying Huang, Xiao-Feng Zhou, Ronald Pethig
- 5Authors for correspondence: Gerard H. Markx and Ronald Pethig. Tel: +44 248 351151. Fax: +44 248 361429. e-mail (JANET): email@example.com; firstname.lastname@example.org
- Microbiology, March 1994 140: 585-591, doi: 10.1099/00221287-140-3-585
- Subject: Biotechnology
- Published Online:
The effective electrical conductivity values for a variety of Gram-negative and positive bacteria have been determined in the frequency range 10 kHz to 100 kHz. This information enabled experimental conditions to be selected where micro-organisms of different species can be separated using dielectrophoresis - the movement of particles induced by non-uniform AC electric fields. Mixtures of micro-organisms of different species were separated locally on a microscope slide using micro-electrodes of polynomial geometry, and their physical isolation into two separate suspensions was accomplished using a dielectrophoresis chamber that incorporated interdigitated, castellated micro-electrodes.
© Society for General Microbiology 1994 | Published by the Microbiology Society
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