Integration of Capillary and EWOD Technologies for Autonomous and Low-power Consumption Micro-analytical Systems

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• 作者：Marco Nardecchia^a ; ^b ; ^{marco.nardecchia@uniroma1.it} ; Enrica Bellini^b ; Pablo R. Llorca^c ; Davide Caprini^c ; Nicola Lovecchio^b ; Giulia Petrucci^b ; Domenico Caputo^b ; Giampiero de Cesare^b ; Augusto Nascetti^a
• 关键词：Lab-on-chip ; Microfluidics ; ElectroWetting-On-Dielectrics ; Capillarity ; Dispensing ; Hydrophobic and Hydrophilic Surfaces
• 刊名：Procedia Engineering
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：168
• 期：Complete
• 页码：1370-1373
• 全文大小：244 K
• 卷排序：168

文摘

This work presents a miniaturized system combining, on the same microfluidic chip, capillarity and electrowetting-on-dielectric (EWOD) techniques for movement and control of fluids. The change in hydrophobicity occurring at the edge between a capillary channel and a hydrophobic layer is successfully exploited as a stop-and-go valve, whose operation is electronically controlled through the EWOD electrodes. Taking into account the variety of microfluidic operation resulting from the combination of the two handling techniques and their characteristic features, this work prompts the development of autonomous, compact and low-power consumption lab-on-chip systems.