Fabrication of self-enclosed nanochannels based on capillary-pressure balance mechanism
Fabrication of self-enclosed nanochannels based on capillary-pressure balance mechanism
复制标题
基于毛细管压力平衡机制的自封闭纳米通道的制备
DOI：
10.1142/s0217984917502530
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发表时间：
2017-10
影响因子：
1.9
通讯作者：
Wang Xudi
中科院分区：
文献类型：
--
作者：
Kou Yu;Sang Aixia;Li Xin;Wang Xudi
基于聚合物的微/纳米流体器件在生物应用和流体控制方面正变得越来越重要。在这篇论文中，我们提出了一种利用毛细压力平衡机制来制备大面积无外力纳米通道的自封闭方法。包覆在纳米沟槽上的熔融聚合物不可避免地填充到沟槽中，沟槽中的空气不是被排除，而是被压缩，最终导致被困空气的压力和熔体聚合物的毛细管力之间的平衡状态，从而形成沟槽。提出了压力平衡模型来解释这种独特的自封现象，并讨论了密封通道的设计和施工准则。根据流体体积(VOF)模拟和实验研究的结合机理，我们可以通过改变烘烤条件来控制密封通道的尺寸。这种制备技术在低成本和大规模生产基于聚合物的微/纳米流体器件方面具有巨大的潜力。
Polymer-based micro/nano fluidic devices are becoming increasingly important to biological applications and fluidic control. In this paper, we propose a self-enclosure method for the fabrication of large-area nanochannels without external force by using a capillary-pressure balance mechanism. The melt polymer coated on the nanogrooves fills into the trenches inevitably and the air in the trenches is not excluded but compressed, which leads to an equilibrium state between pressure of the trapped air and capillary force of melt polymer eventually, resulting in the channels’ formation. A pressure balance model was proposed to elucidate the unique self-sealing phenomenon and the criteria for the design and construction of sealed channels was discussed. According to the bonding mechanism investigated using the volume of fluid (VOF) simulation and experiments, we can control the dimension of sealed channels by varying the baking condition. This fabrication technique has great potential for low-cost and mass production of polymeric-based micro/nano fluidic devices.
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影响因子：
2.7
作者：
Liu, Jian-Lin;Feng, Xi-Qiao;Yu, Shou-Wen
通讯作者：
Yu, Shou-Wen
影响因子：
1.3
作者：
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Zhiwen Wang;J. Chu;Qianyi Wang;Ran Zhang;Yan Cui
影响因子：
4.1
作者：
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通讯作者：
Soper, SA
影响因子：
3.9
作者：
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通讯作者：
Hou, Wentao
影响因子：
2.3
作者：
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通讯作者：
Xudi Wang;Jian Jin;Xin Li;Xiaojun Li;Yingzi Ou;Q. Tang;S. Fu;Fuhua Gao