Controllable stress patterns over multi-generation timescale in microfluidic devices

Methods Cell Biol. 2018;147:29-40. doi: 10.1016/bs.mcb.2018.07.003. Epub 2018 Aug 9.


The generation of complex temporal stress patterns may be instrumental to investigate the adaptive properties of individual cells submitted to environmental stress on physiological timescale. However, it is difficult to accurately control stress concentration over time in bulk experiments. Here, we describe a microfluidics-based protocol to induce tightly controllable H2O2 stress in budding yeast while constantly monitoring cell growth with single cell resolution over multi-generation timescale. Moreover, we describe a simple methodology to produce ramping H2O2 stress to investigate the homeostatic properties of the H2O2 scavenging system.

Keywords: Adaptation; Cell growth; Live-cell imaging; Microfluidics; Stress response.

MeSH terms

  • Dimethylpolysiloxanes / chemistry
  • Hydrogen Peroxide / chemistry
  • Microfluidic Analytical Techniques / methods*
  • Stress, Mechanical*
  • Time Factors


  • Dimethylpolysiloxanes
  • Hydrogen Peroxide