skip to main content

SciTech ConnectSciTech Connect

Title: Direct optical monitoring of flow generated by bacterial flagellar rotation

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.
Authors:
; ; ; ;  [1] ; ;  [2]
  1. Photonics and Optoelectronics Group, Physics Department and CeNS, Ludwig-Maximilians-Universität München, Munich (Germany)
  2. Chair for Experimental Physics: Soft Matter Physics and Biophysics, Physics Department and CeNS, Ludwig-Maximilians-Universität München, Munich (Germany)
Publication Date:
OSTI Identifier:
22283085
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 60 APPLIED LIFE SCIENCES; BACTERIA; FOURIER ANALYSIS; PARTICLES; ROTATION; SILICA; TIME DEPENDENCE; TRAPPING