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Multifunctional reversibly sealable microfluidic devices for patterned material deposition approaches

机译:多功能可逆密封的微流体装置,用于图案化材料沉积方法

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We present a concept to produce reversibly sealable polydimethylsiloxane (PDMS) based microfluidic devices with versatile channel designs, withstanding pressures up to 600 kPa. A novel fabrication strategy, namely the casting of a secondary PDMS casing around the initial channel system allows diverting the tubing attached to the channels sideways so that a simple mounting assembly can be used to press the fluidic chip onto virtually any type of substrate. We demonstrate the functionalities of the developed setup at a proof-of-concept level by direct printing of electronic interconnects onto flexible substrates in a single step. As a second application, we generate uniquely shaped polymer structures when combining the presented technique with droplet microfluidics using a UV-curable adhesive and water as continuous and dispersed phases, respectively. We believe the developed approach has a plethora of applications and a clear perspective of being used for cost-efficient and multifunctional designs of novel classes of materials and devices in diverse areas from electronics to biotechnology.
机译:我们提出了一种生产具有可逆密封性的聚二甲基硅氧烷(PDMS)的微流体装置的概念,该装置具有多种通道设计,可承受高达600 kPa的压力。一种新颖的制造策略,即在初始通道系统周围浇铸辅助PDMS套管,可以使连接到通道的管路侧向转移,从而可以使用简单的安装组件将射流芯片压在几乎任何类型的基板上。我们通过一步一步将电子互连直接印刷到柔性基板上,在概念验证的水平上演示了开发设置的功能。作为第二个应用,当将本技术与分别使用UV固化粘合剂和水分别作为连续相和分散相的液滴微流控相结合时,我们将生成独特形状的聚合物结构。我们相信,这种已开发的方法具有广泛的应用前景,并且具有清晰的前景,可用于从电子到生物技术等各个领域的新型材料和设备的经济高效和多功能设计。

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