...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physics in Canada >Bifurcation of Polyelectrolyte Brushes Subject to Normal Electric Fields
【24h】

Bifurcation of Polyelectrolyte Brushes Subject to Normal Electric Fields

机译：正电场作用下聚电解质电刷的分叉

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

Engineers of micro- and nanofluidic devices look at the biological world with envy because they see systems that can dynamically and reversibly respond to environmental cues. That is to say, they see versatile detectors and enticing flow-controlling gates. They covet the ability to engineer smart surfaces-substrates that can radically but reversibly switch conformational state in response to signals or environmental changes - that could be incorporated as microelectrome-chanical systems (MEMS) and components within lab-on-a-chip devices. But biological smart surfaces are complicated systems, which can be difficult to integrate into micro-fabricated devices. A far simpler option is polymercoated substrates. Polyelectrolyte brushes, in particular, possess great potential as smart surfaces because their structure is extremely sensitive to stimuli such as variations in temperature, pH, or salt concentration. External electric fields are an even more obvious route to altering the state of a polyelectrolyte brush. For instance, applying a field normal to the brush could provide easy, reproducible and fast control over switching from one conformational state to another.
机译：微流体和纳米流体设备的工程师们羡慕地看着生物界，因为他们看到了可以动态和可逆地响应环境线索的系统。也就是说，他们看到了通用的检测器和诱人的流量控制门。他们渴望设计出智能表面基板的能力，这些基板可以响应信号或环境变化而从根本上但可逆地切换构象状态-可以作为微机电系统（MEMS）和片上实验室设备中的组件并入。但是生物智能表面是复杂的系统，可能难以集成到微型设备中。一个更简单的选择是涂有聚合物的基材。特别地，聚电解质刷具有作为智能表面的巨大潜力，因为其结构对刺激（例如温度，pH或盐浓度的变化）极为敏感。外部电场是改变聚电解质电刷状态的更为明显的途径。例如，施加垂直于刷子的场可以提供从一种构象状态到另一种构象状态的切换的容易，可再现和快速的控制。

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