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Multiparameter antibiotic resistance detection based on hydrodynamic trapping of individual E. coli

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Abstract

There is an urgent need to develop novel methods for assessing the response of bacteria to antibiotics in a timely manner. Antibiotics are traditionally assessed via their effect on bacteria in a culture medium, which takes 24–48 h and exploits only a single parameter, i.e. growth. Here, we present a multiparameter approach at the single-cell level that takes approximately an hour from spiking the culture to correctly classify susceptible and resistant strains. By hydrodynamically trapping hundreds of bacteria, we simultaneously monitor the evolution of motility and morphology of individual bacteria upon drug administration. We show how this combined detection method provides insights into the activity of antimicrobials at the onset of their action which single parameter and traditional tests cannot offer. Our observations complement the current growth-based methods and highlight the need for future antimicrobial susceptibility tests to take multiple parameters into account.

Graphical abstract: Multiparameter antibiotic resistance detection based on hydrodynamic trapping of individual E. coli

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Publication details

The article was received on 21 Dec 2018, accepted on 15 Feb 2019 and first published on 14 Mar 2019


Article type: Paper
DOI: 10.1039/C8LC01397G
Citation: Lab Chip, 2019, Advance Article
  • Open access: Creative Commons BY license
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    Multiparameter antibiotic resistance detection based on hydrodynamic trapping of individual E. coli

    G. Pitruzzello, S. Thorpe, S. Johnson, A. Evans, H. Gadêlha and T. F. Krauss, Lab Chip, 2019, Advance Article , DOI: 10.1039/C8LC01397G

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