Direct optical monitoring of flow generated by bacterial flagellar rotation
- Photonics and Optoelectronics Group, Physics Department and CeNS, Ludwig-Maximilians-Universität München, Munich (Germany)
- Chair for Experimental Physics: Soft Matter Physics and Biophysics, Physics Department and CeNS, Ludwig-Maximilians-Universität München, Munich (Germany)
We report on a highly sensitive approach to measure and quantify the time dependent changes of the flow generated by the flagella bundle rotation of single bacterial cells. This is achieved by observing the interactions between a silica particle and a bacterium, which are both trapped next to each other in a dual beam optical tweezer. In this configuration, the particle serves as a sensitive detector where the fast-Fourier analysis of the particle trajectory renders, it possible to access information about changes of bacterial activity.
- OSTI ID:
- 22283085
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 9 Vol. 104; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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