Environmental remediation is a highly pressing issue in society. Here we demonstrate that autonomous self-propelled millimeter sized capsules can sense the presence of pollutants, mark sites for visible identification and remove the contamination, while navigating in a complex environment of interconnected channels, the maze. Such long-range self-powered capsules propelled by the Marangoni effect are capable of releasing chemicals to alter the pH and induce aggregation during pollutant flocculation at a faster rate than convection or diffusion. These devices are foreseen to have real-world environmental applications in the near future. This journal is © the Partner Organisations 2014.
CITATION STYLE
Zhao, G., & Pumera, M. (2014). Marangoni self-propelled capsules in a maze: Pollutants “sense and act” in complex channel environments. Lab on a Chip, 14(15), 2818–2823. https://doi.org/10.1039/c4lc00431k
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