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Topological Microfluidics

Nematic Liquid Crystals and Nematic Colloids in Microfluidic Environment

  • Book
  • © 2013

Overview

Authors:
  1. Anupam Sengupta

    1. Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization (MPIDS), Göttingen, Germany

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  • Nominated as an outstanding Ph.D. thesis by the Max Planck Institute for Dynamics and Self Organization (MPIDS), Göttingen, Germany
  • Comprehensive coverage through illustrations and gradual development of the topic
  • Gives a clear view of the interdisciplinary possibilities offered by Topological Microfluidics
  • Explores a variety of experimental cases of potential interest to numerical/theoretical physicists
  • Author's comments/inputs on the practical aspects of the work will be especially useful to experimental physicists
  • Includes supplementary material: sn.pub/extras

Part of the book series: Springer Theses (Springer Theses)

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Table of contents (9 chapters)

  1. Front Matter

    Pages i-xviii
    Download chapter PDF

  2. Introduction

    • Anupam Sengupta
    Pages 1-5

  3. Liquid Crystal Theory

    • Anupam Sengupta
    Pages 7-36

  4. Materials and Experimental Methods

    • Anupam Sengupta
    Pages 37-51

  5. Functionalization of Microfluidic Devices

    • Anupam Sengupta
    Pages 53-67

  6. Nematic Liquid Crystals Confined Within a Microfluidic Device: Static Case

    • Anupam Sengupta
    Pages 69-82

  7. Flow of Nematic Liquid Crystals in a Microfluidic Environment

    • Anupam Sengupta
    Pages 83-135

  8. Nematic Colloids in Microfluidic Confinement

    • Anupam Sengupta
    Pages 137-144

  9. Ongoing Research

    • Anupam Sengupta
    Pages 145-146

  10. Conclusion

    • Anupam Sengupta
    Pages 147-150

  11. Back Matter

    Pages 151-153
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Keywords

About this book

This work represents one of the first comprehensive attempts to seamlessly integrate two highly active interdisciplinary domains in soft matter science – microfluidics and liquid crystals (LCs). Motivated by the lack of fundamental experiments, Dr. Sengupta initiated systematic investigation of LC flows at micro scales, gaining new insights that are also suggestive of novel applications. By tailoring the surface anchoring of the LC molecules and the channel dimensions, different topological constraints were controllably introduced within the microfluidic devices. These topological constraints were further manipulated using a flow field, paving the way for Topological Microfluidics. Harnessing topology on a microfluidic platform, as described in this thesis, opens up capabilities beyond the conventional viscous-dominated microfluidics, promising potential applications in targeted delivery and sorting systems, self-assembled motifs, and novel metamaterial fabrications.

Authors and Affiliations

  • Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization (MPIDS), Göttingen, Germany

    Anupam Sengupta

About the author

Anupam Sengupta is a soft matter physicist at the Max Planck Institute for Dynamics and Self Organization (MPIDS) Göttingen, Germany. Anupam defended his doctoral research on ‘Liquid Crystal Microfluidics’ in December 2012 with the highest distinction (summa cum laude). His current research interests include transport of complex fluids and their dispersions, patterns on soft substrates and wetting of complex fluids. He is a graduate of the Indian Institute of Technology, Bombay, with a Dual Degree in Mechanical Engineering (Bachelor and Master of Technology). He takes great interest in mentoring young minds and loves to travel, write and play Sitar.

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