Published: Dec. 15, 2023

Many real-world scenarios involve interfaces, particularly liquid-liquid that can fundamentally al-ter the dynamics of colloids. This is poorly understood for chemically active colloids release chemicals into their environment. We report here surprising discovery micromotors—colloids convert chemical fuels self-propulsion—move significantly faster at an oil-water interface than on a glass substrate. Typical speed increases ranged from 3-6 times up to order magnitude, and were observed different types motors or oils. Such are likely caused by reactions glass-water interface, but exact mechanism remains unknown. Our results provide valuable insights complex interactions between micromotors environments, which important applications in human body removal organic pollutants water. In addi-tion, this study also suggests occur micromo-tors serve as probe such effect.

Language: Английский