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dc.contributor.authorWang, Limu
dc.contributor.authorZhang, Mengying
dc.contributor.authorLi, Jiaxing
dc.contributor.authorGong, Xiuqing
dc.contributor.authorWen, Weijia
dc.date.accessioned2016-02-28T08:00:08Z
dc.date.available2016-02-28T08:00:08Z
dc.date.issued2010
dc.identifier.citationWang L, Zhang M, Li J, Gong X, Wen W (2010) Logic control of microfluidics with smart colloid. Lab Chip 10: 2869. Available: http://dx.doi.org/10.1039/c0lc00003e.
dc.identifier.issn1473-0197
dc.identifier.issn1473-0189
dc.identifier.pmid20882229
dc.identifier.doi10.1039/c0lc00003e
dc.identifier.urihttp://hdl.handle.net/10754/600256
dc.description.abstractWe report the successful realization of a microfluidic chip with switching and corresponding inverting functionalities. The chips are identical logic control components incorporating a type of smart colloid, giant electrorheological fluid (GERF), which possesses reversible characteristics via a liquid-solid phase transition under external electric field. Two pairs of electrodes embedded on the sides of two microfluidic channels serve as signal input and output, respectively. One, located in the GERF micro-channel is used to control the flow status of GERF, while another one in the ither micro-fluidic channel is used to detect the signal generated with a passing-by droplet (defined as a signal droplet). Switching of the GERF from the suspended state (off-state) to the flowing state (on-state) or vice versa in the micro-channel is controlled by the appearance of signal droplets whenever they pass through the detection electrode. The output on-off signals can be easily demonstrated, clearly matching with GERF flow status. Our results show that such a logic switch is also a logic IF gate, while its inverter functions as a NOT gate. © The Royal Society of Chemistry 2010.
dc.description.sponsorshipThis publication is based on work partially supported by Award No. SA-C0040/UK-C0016, made by King Abdullah University of Science and Technology (KAUST), Hong Kong RGC grants HKUST 603608, and the Nanoscience and Nanotechnology Program at HKUST. Useful discussion with Casey Glick is acknowledged.
dc.publisherRoyal Society of Chemistry (RSC)
dc.titleLogic control of microfluidics with smart colloid
dc.typeArticle
dc.identifier.journalLab on a Chip
dc.contributor.institutionNano Science and Nano Technology Program, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
kaust.personLi, Jiaxing
kaust.personWen, Weijia
kaust.grant.numberSA-C0040
kaust.grant.numberUK-C0016
kaust.grant.fundedcenterKAUST-HKUST Micro/Nanofluidic Joint Laboratory


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