Marangoni self-propelled capsules in a maze: Pollutants 'sense and act' in complex channel environments

Guanjia Zhao, Martin Pumera

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

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

Original languageEnglish
Pages (from-to)2818-2823
Number of pages6
JournalLab on a chip
Volume14
Issue number15
DOIs
Publication statusPublished - 2014 Aug 7

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Flocculation
Capsules
Contamination
Agglomeration
Convection
Equipment and Supplies
Environmental Restoration and Remediation

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biochemistry
  • Chemistry(all)
  • Biomedical Engineering

Cite this

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Marangoni self-propelled capsules in a maze : Pollutants 'sense and act' in complex channel environments. / Zhao, Guanjia; Pumera, Martin.

In: Lab on a chip, Vol. 14, No. 15, 07.08.2014, p. 2818-2823.

Research output: Contribution to journalArticle

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