Marangoni self-propelled capsules in a maze: pollutants 'sense and act' in complex channel environments
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 interco...
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| Veröffentlicht in: | Lab on a chip 2014-08, Vol.14 (15), p.2818-2823 |
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| container_title | Lab on a chip |
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| creator | Zhao, Guanjia Pumera, Martin |
| description | 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. |
| doi_str_mv | 10.1039/c4lc00431k |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 1473-0197 |
| ispartof | Lab on a chip, 2014-08, Vol.14 (15), p.2818-2823 |
| issn | 1473-0197 1473-0189 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1709777361 |
| source | MEDLINE; Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Agglomeration Capsules Channels Chemical Precipitation Convection Diffusion Dimethylformamide - chemistry Energy Transfer Environmental Monitoring - instrumentation Environmental Restoration and Remediation - instrumentation Equipment Design Flocculating Flocculation Hydrogen-Ion Concentration Imidazoles - chemistry Marangoni effect Materials Testing Metal Nanoparticles - chemistry Microfluidic Analytical Techniques - instrumentation Nanocapsules - chemistry Pollutants Polymers - chemistry Printing, Three-Dimensional Remediation Sodium Dodecyl Sulfate - analysis Sodium Dodecyl Sulfate - chemistry Sulfones - chemistry Surface-Active Agents - analysis Surface-Active Agents - chemistry Water Pollutants - analysis Water Pollutants - antagonists & inhibitors Water Pollutants - chemistry |
| title | Marangoni self-propelled capsules in a maze: pollutants 'sense and act' in complex channel environments |
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