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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/29116完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 胡文聰 | |
| dc.contributor.author | Yu-Shiang Lai | en |
| dc.contributor.author | 賴郁翔 | zh_TW |
| dc.date.accessioned | 2021-06-13T00:40:58Z | - |
| dc.date.available | 2010-07-26 | |
| dc.date.copyright | 2007-07-26 | |
| dc.date.issued | 2007 | |
| dc.date.submitted | 2007-07-25 | |
| dc.identifier.citation | 1. 楊啟榮, 游智勝, 黃奇聲, 胡一君, Micro Electro Mechanical Systems Technology and Application. 2003, 行政院國家科學委員會 精密儀器發展中心.
2. Andersson, H. and A. van den Berg, Microfluidic devices for cellomics: a review. Sensors and Actuators B-Chemical, 2003. 92(3): p. 315-325. 3. Voldman, J., Gray, M. L., Toner, M., and Schmidt, M. A., A microfabrication-based dynamic array cytometer. Analytical Chemistry, 2002. 74(16): p. 3984-3990. 4. Carlson, R., Gabel, C. V., Chan, S. S., Austin, R. H., Brody, J. P., and Winkleman, Self-Sorting of white blood cells in a lattice. Molecular Biology of the Cell, 1997. 8: p. 2407-2407. 5. Pantoja, R., Nagarah, J. M., Starace, D. M., Melosh, N. A., Blunck, R., Bezanilla, F., and Heath, J. R., Silicon chip-based patch-clamp electrodes integrated with PDMS microfluidics. Biosensors & Bioelectronics, 2004. 20(3): p. 509-517. 6. Becker, F.F., Wang, X. B., Huang, Y., Pethig, R., Vykoukal, J., and Gascoyne, P. R. C., Separation of Human Breast-Cancer Cells from Blood by Differential Dielectric Affinity. Proceedings of the National Academy of Sciences of the United States of America, 1995. 92(3): p. 860-864. 7. Henon, S., Lenormand, G., Richert, A. and Gallet, F., A new determination of the shear modulus of the human erythrocyte membrane using optical tweezers. Biophysical Journal, 1999. 76(2): p. 1145-1151. 8. Shelby, J.P., S.A. Mutch, and D.T. Chiu, Direct manipulation and observation of the rotational motion of single optically trapped microparticles and biological cells in microvortices. Analytical Chemistry, 2004. 76(9): p. 2492-2497. 9. Shelby, J.P. and D.T. Chiu, Controlled rotation of biological micro- and nano-particles in microvortices. Lab on a Chip, 2004. 4(3): p. 168-170. 10. Lutz, B.R., J. Chen, and D.T. Schwartz, Hydrodynamic tweezers: 1. Noncontact trapping of single cells using steady streaming microeddies. Analytical Chemistry, 2006. 78(15): p. 5429-5435. 11. White, F.M., Viscous fluid flow, in McGraw-Hill series in mechanical engineering;. 1991, McGraw-Hill. p. xxi, 614 p. : ill. ; 24 cm. 12. Cappietti, L. and B. Chopard, A Lattice Boltzmann study of the 2D boundary layer created by an oscillating plate. International Journal of Modern Physics C, 2006. 17(1): p. 39-52. 13. Rao, S.S., Mechanical vibrations. Si ed. 2005, Singapore: Pearson/Prentice Hall. xxvi, 1078 p. 14. 莊達仁, VLSI 製造技術. 2001: 高立出版. 15. Williams, K.R., K. Gupta, and M. Wasilik, Etch rates for micromachining processing - Part II. Journal of Microelectromechanical Systems, 2003. 12(6): p. 761-778. 16. Xia, Y.N. and G.M. Whitesides, Soft lithography. Annual Review of Materials Science, 1998. 28: p. 153-184. 17. Linderman, R.J., O. Nilsen, and V.M. Bright, Electromechanical and fluidic evaluation of the resonant microfan gas pump and aerosol collector. Sensors and Actuators a-Physical, 2005. 118(1): p. 162-170. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/29116 | - |
| dc.description.abstract | 對於細胞研究，箝制懸浮的細胞是相當重要地。此研究介紹ㄧ個震盪的微尺度懸浮平板，其啟動機制依據羅倫茲力理論，在微流體下產生一相對應的微渦漩來抓取生物微粒子。相對於其他的研究，此微流體元件的特點是能使微粒子隨著流場流經此無阻礙的區域，進而可控制去抓取及釋放微粒子。元件製程利用微機電系統傳統的微影技術，並且藉由元件結構參數的分析來幫助設計一個好的箝制微流體元件。在箝制力學方面的研究係使用注射針筒注射十微米大小的聚合微粒子於流道中的微箝制器上方。此時增加背景流場流速直至被箝制住的抗體被沖刷走，藉由背景流速即可推算出此微振動平板所造成微渦漩之箝制力。
結果顯示可箝制微粒子之最小電壓約為2伏特(peak to peak)。且在電壓7伏特(peak to peak)下，此微渦漩可箝制微粒子於背景流速達到140微米/秒。此箝制力大小在十的負12次方牛頓力範圍內，並且和微渦漩轉速成線性關係。當微粒子被替換成十奈米大小的抗體時，在電壓7伏特(peak to peak)下，可箝制抗體之背景流速則達到1680微米/秒。此力學量測方式有效的控制箝制或釋放微粒子和巨分子。研究團隊相信這些特性是前所未見的。 | zh_TW |
| dc.description.abstract | Trapping of suspended cells is fundamentally important for cellular studies. This work presents a suspended oscillating micro-plate, actuated by Lorentz force law, and generated a pair of counter-rotating micro-vortices to trap bioparticles. In contrast to other approaches, this microfluidic device allows bio-particles to flow freely through unobstructed region, trapped, and controlled released. Fabrication methods utilized conventional lithography, and the parametric analysis of the structure is helpful to design the appropriate microfluidic device for trapping. Trapping study used polystyrene particles (10μm) injected into the PDMS channel by a syringe pump. By increasing the background flow velocity, controlled release of the trapped particle is demonstrated.
Results show that the minimum voltage can be applied to trap particles around 2 Volts (peak to peak), and at 7Vpp input voltage the micro-vortices can trap the particles under 140μm/s background flow. The trapping force is in pico-Newton range, and varies linearly with the flow. When bioparticles are replaced with antibodies, at 7Vpp input voltage the antibodies can be trapped under 1680μm/s background flow. This hydrodynamic approach should be useful for controllable trap/release of bioparticles and macromolecules. The authors believe this to be the first account of having these features. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T00:40:58Z (GMT). No. of bitstreams: 1 ntu-96-R94543065-1.pdf: 3074645 bytes, checksum: 26242d580c251ba88c32fd419b32a92c (MD5) Previous issue date: 2007 | en |
| dc.description.tableofcontents | 中 文 摘 要 3
ABSTRACT 4 CHAPTER 1. INTRODUCTION 6 1.1 RESEARCH BACKGROUND AND MOTIVATION 6 1.1.1 Micro-Electro-Mechanical-Systems (MEMS) 6 1.1.2 Microfluidic devices for cellomics 7 1.2 LITERATURE REVIEW FOR CELL TRAPPING 8 1.2.1 Mechanical trapping 8 1.2.2 Electrical trapping 8 CHAPTER 2. THEORY 12 2.1 THE VIBRATING SYSTEM 12 2.1.1 Stokes’ second problem 12 2.1.2 The Lorentz force law and the response under harmonic force 14 2.2 SIMULATION RESULTS 17 2.2.1 Unsteady flow field above the vibratory structure 17 2.2.2 Time-mean velocity 19 2.2.3 Time-mean pressure distribution 21 2.2.4 Time-mean vorticity distribution 23 CHAPTER 3. CHIP FABRICATION 25 3.1 FABRICATION OF THE SUSPENDED STRUCTURE 25 3.1.1 Thin film and metal deposition 26 3.1.2 Electrode patterning 26 3.1.3 Reactive ion etching (RIE) and wet etching 27 3.2 MICROCHANNEL FABRICATION 29 CHAPTER 4. EXPERIMENTAL SETUP 31 4.1 PARTICLES AND MAGNET PREPARATION 31 4.2 APPARATUS AND PROCEDURE OF SETUP 33 4.2.1 Side view technique 33 4.2.2 Top view technique 35 CHAPTER 5. EXPERIMENTAL RESULTS 39 5.1 PARAMETRIC ANALYSIS 39 5.2 Q FACTOR MEASUREMENT 45 5.3 ROTATIONAL VELOCITY VS. VOLTAGE 48 5.4 TRAPPING FORCE 49 5.5 TRAPPING STUDY USING ANTIBODIES 50 CHAPTER 6. CONCLUSIONS AND FUTURE WORK 53 REFERENCE: 54 | |
| dc.language.iso | en | |
| dc.subject | 微渦漩 | zh_TW |
| dc.subject | 微流體 | zh_TW |
| dc.subject | 勞倫茲力 | zh_TW |
| dc.subject | 箝制細胞 | zh_TW |
| dc.subject | 懸浮 | zh_TW |
| dc.subject | Micro-vortices | en |
| dc.subject | suspension. | en |
| dc.subject | Trapping of cells | en |
| dc.subject | Lorentz force | en |
| dc.subject | Microfluidics | en |
| dc.title | 微渦漩應用於箝制細胞之研究 | zh_TW |
| dc.title | Cell Trapping via Counter-Rotating Micro-Vortices | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 95-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 李心予,鐘德憲 | |
| dc.subject.keyword | 微渦漩,微流體,勞倫茲力,箝制細胞,懸浮, | zh_TW |
| dc.subject.keyword | Micro-vortices,Microfluidics,Lorentz force,Trapping of cells,suspension., | en |
| dc.relation.page | 55 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2007-07-25 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 應用力學研究所 | zh_TW |
| 顯示於系所單位： | 應用力學研究所 | |
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