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Locomotion of Micromotors Due to Liposome Disintegration

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  • Federico Mazur, University of New South Wales
  • ,
  • Marina Fernández-Medina
  • ,
  • Noga Gal
  • ,
  • Ondrej Hovorka, University of Southampton
  • ,
  • Rona Chandrawati, University of New South Wales
  • ,
  • Brigitte Städler

Synthetic micromotors are evaluated extensively in a range of biomedical, microscale transport, and environmental applications. Fundamental insight into micromotors that exhibit locomotion due to triggered disintegration of their associated liposomes is provided. Directed self-propulsion is observed when the lipid vesicles are solubilized using Triton X-100 (TX) and bile at sufficiently high concentrations. Directional motion, initiated by a propagating TX or bile gradient, is found when using a sufficiently high concentration of solubilization agents. On the other hand, a low bile concentration results in short-term reverse directional motion. The experimental and theoretical considerations offer valid fundamental understanding to complement the list of explored locomotion mechanisms for micromotors.

Original languageEnglish
Pages (from-to)7056-7065
Number of pages10
Publication statusPublished - Jun 2020

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