A bacterial continuous culture system based on a microfluidic droplet open reactor

Manami Ito, Haruka Sugiura, Shotaro Ayukawa, Daisuke Kiga, Masahiro Takinoue

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1 Citation (Scopus)

Abstract

Recently, micrometer-sized bacterial culture systems have attracted attention as useful tools for synthetic biology studies. Here, we present the development of a bacterial continuous culture system based on a microdroplet open reactor consisting of two types of water-in-oil microdroplets with diameters of several hundred micrometers. A continuous culture was realized the through supply of nutrient substrates and the removal of waste and excess bacterial cells based on repeated fusion and fission of droplets. The growth dynamics was controlled by the interval of fusion. We constructed a microfluidic system and quantitatively assessed the dynamics of the bacterial growth using a mathematical model. This system will facilitate the study of synthetic biology and metabolic engineering in the future.

Original languageEnglish
Pages (from-to)61-66
Number of pages6
JournalAnalytical Sciences
Volume32
Issue number1
DOIs
Publication statusPublished - 2016
Externally publishedYes

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Keywords

  • Cell density control
  • Continuous culture
  • Droplet microfluidics
  • Emulsion
  • Genetic engineering
  • Metabolic engineering
  • Nonequilibrium open system
  • Nonlinear dynamics
  • Synthetic biology
  • Water-in-oil microdroplet

ASJC Scopus subject areas

  • Analytical Chemistry

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