| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터) |
| 권호 |
16권 2호, p.1984 |
| 발표분야 |
재료 |
| 제목 |
Active Concentration of Nanoparticles on Microfluidic Systemwith Nanoporous Structure |
| 초록 |
Hydrogel-based active platform has been extensively investigated because it is easy to position at microfluidic system by photo-polymerization and can be applied for both sensing and actuation functions simultaneously. Here we propose active concentration on microfludic system which is prepared by combining pH sensitive hydrogel microvalve with patterned polymeric inverse opal structure. To integrate the inverse opals on microfluidic chip, colloidal particles are crystallized on photocurable polymer thick film first. By using conventional photolithographic method, the colloidal crystals were patterned in micron scale then incorporated into microfluidic channel. Hydrogel valves could be fabricated by in situ photopolymerization in microfluidic channel. Finally, hydrogel-based microfluidic concentrator system was applied to concentrate the nanometer-sized analytes by actuating the pH-sensitive hydrogel with buffer and applying DC field to induce the flow of analytes. |
| 저자 |
허철준1, 장세규2, 김신현3, 최재훈1, 양승만1
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| 소속 |
1광자유체집적소자연구단 / KAIST 생명화학공학과, 2Univ. of California Santa Barbara, 3Havard Univ. |
| 키워드 |
Active concentration; Nanoparticle; Hydrogel valve; Nanoporous material
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| E-Mail |
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| 원문파일 |
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