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  Connecting and disconnecting nematic disclination lines in microfluidic channels.

Agha, H., & Bahr, C. (2016). Connecting and disconnecting nematic disclination lines in microfluidic channels. Soft Matter, 12(18), 4266-4273. doi:10.1039/C5SM03092G.

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 Creators:
Agha, Hakam1, Author              
Bahr, Christian1, Author              
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1Group Structure formation in soft matter, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063301              

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 Abstract: Disclination lines in nematic liquid crystals can be used as ‘‘soft rails’’ for the transport of colloids or droplets through microfluidic channels [A. Sengupta, C. Bahr and S. Herminghaus, SoftMatter , 2013, 9 , 7251]. In the present study we report on a method to connect and disconnect disclination lines in microfluidic channels using the interplay between anchoring, flow, and electric field. We show that the application of an electric field establishes a continuous disclination that spans across a channel region in which a disclination usually would not exist (because of different anchoring conditions), demonstrating an interruptible and reconnectable soft rail for colloidal transport.

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Language(s): eng - English
 Dates: 2016-04-112016-05-14
 Publication Status: Published in print
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 Rev. Type: Peer
 Identifiers: DOI: 10.1039/C5SM03092G
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Title: Soft Matter
Source Genre: Journal
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Pages: - Volume / Issue: 12 (18) Sequence Number: - Start / End Page: 4266 - 4273 Identifier: ISSN: 1744-683X