Full Paper

Solvent-Resistant PDMS Microfluidic Devices with Hybrid Inorganic/Organic Polymer Coatings

  1. Bo-Yeol Kim1,
  2. Lan-Young Hong2,
  3. Young-Min Chung3,
  4. Dong-Pyo Kim2,*,
  5. Chang-Soo Lee1,*

Article first published online: 9 NOV 2009

DOI: 10.1002/adfm.200901024

Issue

Advanced Functional Materials

Advanced Functional Materials

Volume 19, Issue 23, pages 3796–3803, December 9, 2009

Additional Information

How to Cite

Kim, B.-Y., Hong, L.-Y., Chung, Y.-M., Kim, D.-P. and Lee, C.-S. (2009), Solvent-Resistant PDMS Microfluidic Devices with Hybrid Inorganic/Organic Polymer Coatings. Adv. Funct. Mater., 19: 3796–3803. doi: 10.1002/adfm.200901024

Author Information

  1. 1

    Department of Chemical Engineering Chungnam National University Daejeon 305-764 (Korea)

  2. 2

    Department of Applied Chemistry Chungnam National University Daejeon 305-764 (Korea)

  3. 3

    SK Energy Daejeon 305-712 (Korea)

*Department of Applied Chemistry Chungnam National University Daejeon 305-764 (Korea)

Publication History

  1. Issue published online: 3 DEC 2009
  2. Article first published online: 9 NOV 2009
  3. Manuscript Revised: 28 AUG 2009
  4. Manuscript Received: 9 JUN 2009

Funded by

  • Korea Health 21 R&D Project
  • Ministry of Health and Welfare. Grant Number: A062254
  • Korea Research Foundation. Grant Number: KRF-2008-331-D00131
  • Korea Science and Engineering Foundation grant (KOSEF). Grant Number: R01-2008-000–11260-0
  • 2008 Creative Research Initiative Program. Grant Number: R16-2008-138-01000-0

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Keywords:

  • Coatings;
  • Hybrid Materials;
  • Microfluidics;
  • Thin Films

Abstract

This study presents a method for the fabrication of solvent-resistant poly(dimethylsiloxane) (PDMS) microfluidic devices by coating the microfluidic channel with a hybrid inorganic/organic polymer (HR4). This modification dramatically increases the resistance of PDMS microfluidic channels to various solvents, because it leads to a significant reduction in the rate of solvent absorption and consequent swelling. The compatibility of modified PDMS with a wide range of solvents is investigated by evaluating the swelling ratio measured through weight changes in a standard block. The HR4-modified PDMS microfluidic device can be applied to the formation of water-in-oil (W/O) and oil-in-water (O/W) emulsions. The generation of organic solvent droplets with high monodispersity in the microfluidic device without swelling problems is demonstrated. The advantage of this proposed method is that it can be used to rapidly fabricate microfluidic devices using the bulk properties of PDMS, while also increasing their resistance to various organic solvents. This high compatibility with a variety of solvents of HR4-modified PDMS can expand the application of microfluidic systems to many research fields.

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