Assembly of Topographical Micropatterns with Optoelectronic Tweezers

Assembly of Topographical Micropatterns with Optoelectronic Tweezers
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用光电镊子组装形貌微图案

DOI:
10.1002/adom.201900669
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发表时间:
2019
影响因子:
9
通讯作者:
A. R. Wheeler
A. R. Wheeler
中科院分区:
材料科学2区
文献类型:
--
作者:
Shuailong Zhang;Y. Zhai;Ran Peng;M. Shayegannia;Andrew G. Flood;Juntian Qu;Xinyu Liu;N. Kherani;A. R. Wheeler

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地形微模式(TMPs),或平面上三维特征的有序阵列,已经成为广泛应用的重要因素。本文报道了一种基于光电镊子的光流体方法,该方法可以从流体中的微粒悬浮液中组装TMPs。组装后,TMPs可以冷冻干燥,然后转移到其他基质上。我们进行了三维模拟来澄清实验结果,并开发了评估模式转移保真度的技术,发现在各种不同的结构中,模式转移保真度达到了90%。这里所描述的光流体组装方法简单易行,表明在未来的微加工和微组装应用中具有广泛的实用性。
Topographical micropatterns (TMPs), or ordered arrays of 3D features on a flat surface, have become important for a wide range of applications. A new optofluidic method based on optoelectronic tweezers to assemble TMPs from suspensions of microparticles in fluid is reported. After assembly, TMPs can be freeze‐dried and then transferred to alternate substrates. 3D simulations are carried out to clarify the experimental results and techniques are developed to evaluate pattern‐transfer fidelity, which is found to be >90% for a wide range of different structures. The optofluidic assembly method described here is facile and accessible, suggesting utility for a wide range of microfabrication and microassembly applications in the future.
DOI: 10.1038/nphoton.2007.277
发表时间: 2008-02-01
期刊: NATURE PHOTONICS
影响因子: 35
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