Cell sorting devices

A method, comprising:

• passing, in serial fashion, a quantity of cells from a cell reservoir to at least one cell sorting device of a microfluidic cell analysis system;
• and
• for each cell sorting device:
• detecting cells to be analyzed;
• activating a cell ejector, when a cell to be analyzed is detected, to eject the cell to be analyzed;
• and
• directing a waste fluid to a waste reservoir.

A cell sorting system, comprising:

• a cell reservoir to contain a volume of cells;
• multiple cell sorting devices, each cell sorting device comprising:
• a microfluidic channel to serially transport individual cells from the cell reservoir along a flow path;
• a sensor to distinguish between a cell to be analyzed and waste fluid;
• at least two fluid transport devices disposed within the microfluidic channel, the at least two fluid transport devices comprising:
• at least one cell thermal inkjet resistor to, responsive to detection by the sensor of a cell to be analyzed;
• activate to eject the cell to be analyzed;
• and
• a waste thermal inkjet resistor to eject waste fluid through an orifice to a waste reservoir;
• and
• a component controller to selectively activate the cell thermal inkjet resistor and the waste thermal inkjet resistor based on an output of the sensor.