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首页> 外文会议>Solid-state sensor and actuator workshop : Technical digest >DEPENDENCE OF TiO_2FILM SIZE AND SHAPE FORLIGHT ACTIVATED FLOW CONTROL IN MICROCHANNELS
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DEPENDENCE OF TiO_2FILM SIZE AND SHAPE FORLIGHT ACTIVATED FLOW CONTROL IN MICROCHANNELS

机译：TiO_2膜尺寸和形状对微通道内 ​​r n光激发流控制的依赖性

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摘要

The surface charge of Titanium Dioxide (TiO_2) can bernvaried with light to control the electroosmotic flow velocity inrnmicrochannels. The use and limitations of TiO_2 films insidernmicrofluidic channels to control both local and bulk flows arernexplored. Different patterns of TiO_2 can be fabricated overrnwhich the surface charge can be modulated. Both modeling andrnexperimental results are presented. In channels containing longrnpatterns, bubble formation was observed due to electrochemicalrnreactions. A threshold potential drop for bubble generationrnvaried from 700 V for a 2.5 cm long film to 1000 V for a 0.5 cmrnfilm.
机译：可以随光改变二氧化钛（TiO_2）的表面电荷，以控制微通道中的电渗流速。探索了微流控通道内TiO_2薄膜在控制局部和整体流动方面的用途和局限性。可以制造不同图案的TiO_2，从而可以调节表面电荷。给出了建模和实验结果。在包含长图案的通道中，由于电化学反应，观察到气泡形成。气泡产生的阈值电位降从2.5厘米长的薄膜的700 V变为0.5厘米薄膜的1000V。

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  • 来源
  • 会议地点 Hilton Head Island SC(US)
  • 作者

    Jaisree Moorthy; Christopher Khoury; Mark A. Stremler; Jeffrey S. Moore; David J. Beebe;

  • 作者单位

    Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana-Champaign, IL 61801 Department of Biomedical Engineering, University of Wisconsin, Madison WI 53706;

    Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana-Champaign, IL 61801 Department of Electrical Engineering, University of Wisconsin, Madison WI 53706;

    Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana-Champaign, IL 61801;

    Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana-Champaign, IL 61801;

    Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana-Champaign, IL 61801 Department of Biomedical Engineering, University of Wisconsin, Madison WI 53706;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TM938.865;
  • 关键词

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