Before revision:  By developing a membrane-based microfluidic device suitable for culturing a large cell population under uniform and controllable growth conditions, we study how the cell size distribution changes after the supplied medium is switched from a nutritious to non-nutritious one, triggering the bacterial reductive division .
After revision:  By developing a membrane-based microfluidic device suitable for culturing a large cell population under uniform and switchable conditions. Triggering bacterial reductive division .