| 학회 | 한국화학공학회 |
| 학술대회 | 2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 | 13권 2호, p.2213 |
| 발표분야 | 이동현상 |
| 제목 | Secondary Breakup of Water Droplets by Pneumatic Valves in Multi-layer Microfluidic Chips |
| 초록 | Microfluidic systems became to useful platforms in many research areas including chemistry, material science and pharmaceutics because of their easy fabrication and precise controllability. Especially, emulsion droplets in microfluidics are taking a growing interest as chemical reactors or confining geometries of self-assembly. However, to control the size of droplets in common microfluidic chips, flow rates of two fluids must be changed or microfluidic chips which have different geometrical dimensions must be needed. In this study, we fabricated the multi-layer microfluidic chips with pneumatic valves for secondary breakup of water droplets by the valves without changing the flow rate or the microfluidic chip. As controlling the pressure applied to the control channel, geometrical dimensions of the flow channel become narrow by pneumatic valves. So, while droplets go through the region having the membrane, they break up because of their unstable state. So, we examined control of sizes of secondary droplets by various pressure applied to control channel in the multi-layer microfluidic chips. |
| 저자 | 최재훈1, 이승곤2, 이기라3, 양승만2 |
| 소속 | 1한국과학기술원 광자유체집적소자연구단 / 한국과학기술원 생명화학공학과, 2한국과학기술원 광자유체집적소자연구단 / 한국과학기술원 생명화학공학과, 3한국기초과학지원(연) |
| 키워드 | Multi-layer Microfluidic Chip; PDMS; Droplet; Secondary breakup |
| 원문파일 | 초록 보기 |
