Reconfigurable assemblies of active, autochemotactic gels

Show simple item record Dayal, Pratyush Balazs, Anna C. Kuksenok, Olga 2014-03-17T08:02:08Z 2014-03-17T08:02:08Z 2013-01
dc.identifier.citation Dayal, Pratyush; Kuksenok, Olg and Balazs, Anna C., “Reconfigurable assemblies of active autochemotactic gels”, Proceedings of the National Academy of Sciences (PNAS), DOI: 10.1073/pnas.1213432110, vol. 110, no. 2, pp. 431-436, Jan. 2013. en_US
dc.identifier.issn 0027-8424
dc.identifier.issn 1091-6490
dc.description.abstract Using computational modeling, we show that self-oscillating Belousov–Zhabotinsky (BZ) gels can both emit and sense a chemical signal and thus drive neighboring gel pieces to spontaneously self-aggregate, so that the system exhibits autochemotaxis. To the best of our knowledge, this is the closest system to the ultimate self-recombining material, which can be divided into separated parts and the parts move autonomously to assemble into a structure resembling the original, uncut sample. We also show that the gels’ coordinated motion can be controlled by light, allowing us to achieve selective self-aggregation and control over the shape of the gel aggregates. By exposing the BZ gels to specific patterns of light and dark, we design a BZ gel “train” that leads the movement of its “cargo.” Our findings pave the way for creating reconfigurable materials from self-propelled elements, which autonomously communicate with neighboring units and thereby actively participate in constructing the final structure. en_US
dc.description.statementofresponsibility by Pratyush Dayal, Olga Kuksenok and Anna C. Balazs
dc.format.extent Vol. 110, No. 2, pp. 431-436
dc.language.iso en en_US
dc.publisher National Academy of Sciences en_US
dc.subject Autochemotactic gels en_US
dc.subject Autochemotactic self organization en_US
dc.subject Chemical Engineering en_US
dc.subject Light en_US
dc.subject Mechanical processes en_US
dc.subject Self-oscillating gels en_US
dc.title Reconfigurable assemblies of active, autochemotactic gels en_US
dc.type Article en_US
dc.relation.journal Proceedings of the National Academy of Sciences

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