Biological sample: The ROALD experiment investigates human T-lymphocytes cells.

ROALD experiment: A T-lymphocytes liquid culture is required by the scientists to study the role of apoptosis (programmed cell death) in depression of human T-lymphocytes activation by means of mitogens in microgravity.

Hardware performance: The EU is designed to allow cell culture in liquid media. Cells are activated, incubated and fixed in a fully autonomous way. The expandable CC makes possible a protocol with different volumes. The EU can perform two experiments at the same time. Each experiment carries a replica. The outcomes of each experiment are validated by comparison.