...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Microelectromechanical Systems >A Thermally Responsive PDMS Composite and Its Microfluidic Applications
【24h】

A Thermally Responsive PDMS Composite and Its Microfluidic Applications

机译：热敏PDMS复合材料及其微流体应用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper describes a novel composite actuator for controlled liquid actuation in microsystems which is based on a thermally responsive elastomer. The composite actuator consists of expandable microspheres incorporated in a polydimethylsiloxane (PDMS) matrix and entails the merits of both PDMS and expandable microspheres. The main characteristic of the composite actuator is to expand upon heat. The expansion is irreversible and the relative volume increase is measured up to 270% of its original volume after heating to 80 degC. The composite was used to fabricate single-use microfluidic pumps and valves. We show the displacement of liquids in the range of nanoliters even against counter pressures up to 100 kPa. Moreover, liquid flow in microchannels was entirely blocked by means of the integrated valves. The valves can withstand pressures up to 140 kPa. The devices are fabricated using low-cost materials only, and the composite actuator allows using wafer-level processing. The fluidic components based on the novel composite are highly integrable and do not require external actuators
机译：本文介绍了一种基于热响应弹性体的，用于微系统中可控液体驱动的新型复合驱动器。复合驱动器由掺入聚二甲基硅氧烷（PDMS）基质中的可膨胀微球组成，具有PDMS和可膨胀微球的优点。复合执行器的主要特性是在加热时膨胀。膨胀是不可逆的，在加热到80摄氏度后，相对体积的增加可测量到其原始体积的270％。该复合材料用于制造一次性微流体泵和阀。我们显示了即使在高达100 kPa的反压下，液体的排量也在纳升范围内。此外，微通道中的液体流动被集成阀完全堵塞。阀门可以承受高达140 kPa的压力。这些设备仅使用低成本材料制造，而复合执行器允许使用晶圆级处理。基于新型复合材料的流体组件具有高度可集成性，并且不需要外部执行器

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号