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InkJet printed structures for smart lab-on-chip systems

机译：用于智能芯片实验室系统的喷墨打印结构

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摘要

Inkjet printing is a digital printing technique that is capable of depositing not only inks, but functional materials onto different substrates in an additive way. In this paper, applications of inkjet printed structures for microfluidic lab-on-chip systems are discussed. Such systems are promising for different chemical or biochemical analysis tasks carried out at the Point-of-Care level and therefore due to cost reasons are often fabricated from polymers. The paper discusses inkjet-printed wiring structures and electroactive polymer (EAP) actuators for use in microfluidic lab-on-chip systems. Silver and gold wirings are shown that are fabricated by printing metal nanoparticle inks onto polymer substrates. After printing the structures are sintered using argon plasma sintering, a low-temperature sintering process that is compatible with polymer substrates. The wirings consist of several electrode like structures and contact pads and feature minimum structure sizes of approximately 70 μm. They can be used for electrodes, fluid presence detectors and localized ohmic heaters in lab-on-chip systems. Based on that an all inkjet-printed EAP actuator then is discussed. Membrane-type bending actuators generate deflections of approximately 5 μm when being driven at a resonance frequency of 1.8 kHz with 110 V. Derived from that and assuming passive valves on-chip pumping rates in the range of 0.5 ml/min can be estimated.
机译：喷墨印刷是一种数字印刷技术，该技术不仅可以将油墨而且可以将功能性材料以附加方式沉积到不同的基材上。在本文中，讨论了喷墨印刷结构在微流体芯片实验室系统中的应用。这样的系统有望在护理点水平上执行不同的化学或生化分析任务，因此，由于成本原因，通常是由聚合物制造的。本文讨论了用于微流体芯片实验室系统的喷墨印刷线路结构和电活性聚合物（EAP）致动器。示出了通过将金属纳米颗粒油墨印刷到聚合物基底上而制造的银和金布线。印刷后，使用氩等离子体烧结法烧结结构，这是一种与聚合物基材兼容的低温烧结工艺。布线由多个类似电极的结构和接触垫组成，并具有约70μm的最小结构尺寸。它们可用于芯片实验室系统中的电极，流体存在检测器和局部欧姆加热器。基于此，然后讨论了所有喷墨打印的EAP执行器。当膜式弯曲执行器在110 kHz的1.8 kHz共振频率下被驱动时，会产生大约5μm的挠度。由此得出，并假设被动阀的片上泵送速度可以估计在0.5 ml / min的范围内。

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  • 来源
    《Microfluidics, bioMEMS, and medical microsystems XI》|2013年|86150E.1-86150E.10|共10页
  • 会议地点 San Francisco CA(US)
  • 作者

    E. Beckert; R. Eberhardt; Oliver Pabst; Falk Kemper; Zhe Shu; Andreas Tunnermann; Jolke Perelaer; Ulrich Schubert; Holger Becker;

  • 作者单位

    Fraunhofer-Institute for Applied Optics and Precision Engineering (IOF), Albert-Einstein-Strasse 7,07745 Jena, Germany 3641807101;

    Fraunhofer-Institute for Applied Optics and Precision Engineering (IOF), Albert-Einstein-Strasse 7,07745 Jena, Germany 3641807101;

    Friedrich-Schiller-University Jena, Fuerstengraben 1,07743 Jena, Germany 36419300;

    Friedrich-Schiller-University Jena, Fuerstengraben 1,07743 Jena, Germany 36419300;

    Friedrich-Schiller-University Jena, Fuerstengraben 1,07743 Jena, Germany 36419300 Abbe School of Photonics, Friedrich-Schiller-University Jena,Max-Wien-Platz 1, 07743 Jena;

    Friedrich-Schiller-University Jena, Fuerstengraben 1,07743 Jena, Germany 36419300;

    Friedrich-Schiller-University Jena, Fuerstengraben 1,07743 Jena, Germany 36419300;

    Friedrich-Schiller-University Jena, Fuerstengraben 1,07743 Jena, Germany 36419300;

    microfluidic ChipShop GmbH, Stockholmer Str. 20,07747 Jena, Germany 36413470580;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Lab on Chip; InkJet Printing; Electrodes; Heaters; Micro Pump;

    机译：芯片实验室喷墨打印；电极;加热器；微型泵;

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