Cleaning by Surfactant Gradients

Published April 3, 2018 5,261 Plays

Rumble Stained cotton cleaned with detergent and then placed in a swirling bath of fresh water (left) gets clean much faster—thanks to the strong detergent gradient leading to diffusiophoresis—than the same fabric rinsed with detergent-filled water (right). (Video is sped up by 5x.)

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