Biomedical Engineering Letters

, Volume 2, Issue 2, pp 95–99

Microfluidic synthesis of anisotropic particles from Janus drop by in situ photopolymerization

  • Chang-Hyung Choi
  • Sora Hwang
  • Jae-Min Jeong
  • Sung-Min Kang
  • Jongmin Kim
  • Chang-Soo Lee
Original Article

DOI: 10.1007/s13534-012-0057-8

Cite this article as:
Choi, CH., Hwang, S., Jeong, JM. et al. Biomed. Eng. Lett. (2012) 2: 95. doi:10.1007/s13534-012-0057-8
Part of the following topical collections:
  1. Topical Issue: BioMEMS

Abstract

Purpose

This study presents a microfluidic method to generate anisotropic particles from Janus drop with high flexibility to control their shapes by in situ photopolymerization.

Methods

Janus drops are continuously formed as the oil phase breaks up the two laminar flows of a photocurable fluid and a sacrificial template. Our method to generate anisotropic particles includes two routes: In situ polymerization of Janus drop in equilibrium state and evolved drop in nonequilibrium state.

Results

The resulting drop has allowed us to synthesize hemispheres with flat bottom and 3D particles. Also, the formation of the Janus drop and their evolution is theoretically estimated by spreading coefficient.

Conclusions

We anticipate that this novel fabrication approach presented in this work can be applied to produce novel functional material in various applications such as self-assembly, photonics, diagnostics, and drug-delivery.

Keywords

Microfluidics Janus drop Anisotropic particle in situ photopolymerization 

Copyright information

© Korean Society of Medical and Biological Engineering and Springer 2012

Authors and Affiliations

  • Chang-Hyung Choi
    • 1
  • Sora Hwang
    • 1
  • Jae-Min Jeong
    • 1
  • Sung-Min Kang
    • 1
  • Jongmin Kim
    • 1
  • Chang-Soo Lee
    • 1
  1. 1.Department of Chemical EngineeringChungnam National UniversityDaejeonKorea

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