A method for measuring bacterial chemotaxis parameters in a microcapillary
- Tulane Univ., New Orleans, LA (United States). Dept. of Chemical Engineering
A new method was developed which enables chemotaxis parameters to be measured at a single-cell level inside a capillary for the first time. The chemotaxis chamber consists of two reservoirs communicating through a capillary tube 50 {micro}m in diameter. Chemotaxis parameters are measured inside the capillary using image analysis, after a nearly linear attractant concentration gradient has been generated along the capillary by diffusion. Compared to previously published techniques, this method provides a well-characterized chemoattractant concentration profile in addition to allowing single-cell parameters to be measured inside a fine capillary. This procedure was used to measure the single-cell chemotaxis parameters for Escherichia coli K12, and the results are compared to published data on single E. coli cells chemotaxing in bulk.
- DOE Contract Number:
- FG21-93EW53023
- OSTI ID:
- 260443
- Journal Information:
- Biotechnology and Bioengineering, Vol. 51, Issue 1; Other Information: PBD: 5 Jul 1996
- Country of Publication:
- United States
- Language:
- English
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