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In a vile three watery solutions phase separate into three layers. In membraneless organelles, chemical reactions occur at the interfaces of such layers, processing a reactant step-by-step and moving the reaction product from one layer to the next. Credit: Georgia Tech / Rob Felt
Synthetic Organelle Shows How Tiny Puddle-Organs in our Cells Work

Just tiny puddles. That's what some of our cells' organelles are, and this synthetic organelle, engineered in the lab, shows how they can work.