標題: Droplet-on-a-wristband: Chip-to-chip digital microfluidic interfaces between replaceable and flexible electrowetting modules
作者: Fan, Shih-Kang
Yang, Hanping
Hsu, Wensyang
機械工程學系
材料科學與工程學系
Department of Mechanical Engineering
Department of Materials Science and Engineering
公開日期: 2011
摘要: We present a long (204 mm), curved (curvature of 0.04 mm(-1)), and closed droplet pathway in "droplet-on-a-wristband" (DOW) with the designed digital microfluidic modular interfaces for electric signal and droplet connections based on the study of electrowetting-on-dielectric (EWOD) in inclined and curved devices. Instead of using sealed and leakage-proof pipes to transmit liquid and pumping pressure, the demonstrated modular interface for electrowetting-driven digital microfluidics provides simply electric and fluidic connections between two adjacent parallel-plate modules which are easy-to-attach/detach, showing the advantages of using droplets for microfluidic connections between modules. With the previously reported digital-to-channel interfaces (Abdelgawad et al., Lab Chip, 2009, 9, 1046-1051), the chip-to-chip interface presented here would be further applied to continuous microfluidics. Droplet pumping across a single top plate gap and through a modular interface with two gaps between overlapping plates are investigated. To ensure the droplet transportation in the DOW, we actuate droplets against gravity in an inclined or curved device fabricated on flexible PET substrates prepared by a special razor blade cutter and low temperature processes. Pumping a 2.5 mu l droplet at a speed above 105 mm s(-1) is achieved by sequentially switching the entire 136 driving electrodes (1.5 mm x 1.5 mm) along the four flexible modules of the DOW fabricated by 4-inch wafer facilities.
URI: http://hdl.handle.net/11536/26134
http://dx.doi.org/10.1039/c0lc00178c
ISSN: 1473-0197
DOI: 10.1039/c0lc00178c
期刊: LAB ON A CHIP
Volume: 11
Issue: 2
起始頁: 343
結束頁: 347
顯示於類別:期刊論文


文件中的檔案:

  1. 000285514700022.pdf

若為 zip 檔案,請下載檔案解壓縮後,用瀏覽器開啟資料夾中的 index.html 瀏覽全文。