Handle URI:
http://hdl.handle.net/10754/600256
Title:
Logic control of microfluidics with smart colloid
Authors:
Wang, Limu; Zhang, Mengying; Li, Jiaxing; Gong, Xiuqing; Wen, Weijia
Abstract:
We 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.
Citation:
Wang 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.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Lab on a Chip
KAUST Grant Number:
SA-C0040; UK-C0016
Issue Date:
2010
DOI:
10.1039/c0lc00003e
PubMed ID:
20882229
Type:
Article
ISSN:
1473-0197; 1473-0189
Sponsors:
This 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.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorWang, Limuen
dc.contributor.authorZhang, Mengyingen
dc.contributor.authorLi, Jiaxingen
dc.contributor.authorGong, Xiuqingen
dc.contributor.authorWen, Weijiaen
dc.date.accessioned2016-02-28T08:00:08Zen
dc.date.available2016-02-28T08:00:08Zen
dc.date.issued2010en
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.en
dc.identifier.issn1473-0197en
dc.identifier.issn1473-0189en
dc.identifier.pmid20882229en
dc.identifier.doi10.1039/c0lc00003een
dc.identifier.urihttp://hdl.handle.net/10754/600256en
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.en
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.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleLogic control of microfluidics with smart colloiden
dc.typeArticleen
dc.identifier.journalLab on a Chipen
dc.contributor.institutionNano Science and Nano Technology Program, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kongen
kaust.authorLi, Jiaxingen
kaust.authorWen, Weijiaen
kaust.grant.numberSA-C0040en
kaust.grant.numberUK-C0016en
kaust.grant.fundedcenterKAUST-HKUST Micro/Nanofluidic Joint Laboratoryen

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