Dynamic Magnetic Responsive Wall Array with Droplet Shedding-off Properties.

Dynamic Magnetic Responsive Wall Array with Droplet Shedding-off Properties.
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具有液滴脱落特性的动态磁响应壁阵列

DOI:
10.1038/srep11209
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发表时间:
2015-06-10
期刊:
影响因子:
4.6
通讯作者:
Zheng Y
Zheng Y
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Wang L;Zhang M;Shi W;Hou Y;Liu C;Feng S;Guo Z;Zheng Y

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表面上液滴的方向控制对于长距离液体传输、自清洁和防水性任务是重要的问题。然而,它仍然是具有挑战性的,以控制的取向结构的运动,以控制液滴脱落。在此,我们报道了一种新的动态磁响应墙(DMRW)阵列在PDMS(聚二甲基硅氧烷)为基础的表面。由于DMRW中的磁性材料,通过外部磁体的作用,壁可以容易地倾斜。液滴可以在表面上定向脱落。特别是,通过形状恢复和柔性特性,实现了对DMRW倾斜角度(0-60°)的同时控制,以在DMRW上的磁作用下脱落不同体积(1-15 μL)的液滴。用界面理论阐明了DMRW上液滴脱落的机理。它提供了一个深入了解设计的动态界面的防水性。该策略实现了多功能、可调和定向驱动功能的制备。
Directional control of droplets on a surface is an important issue for tasks of long-range liquid-transport, self-cleaning and water repellency. However, it is still challenging to control the structure motions in orientations so as to control the shedding-off of droplets. Herein, we report a novel dynamic magnetic responsive wall (DMRW) array on PDMS (polydimethylsiloxane) -based surface. The walls can easily tilt through the effect of the external magnet because of the magnetic material in the DMRW. The droplets can be shed off directionally on the surface. Particularly, with the shape recovery and flexible properties, it achieves simultaneous control of the tilt angles (0-60°) of DMRW for shedding-off of droplets with different volumes (1-15 μL) under magnetic action on DMRW. The mechanism of droplet shedding-off on DMRW is elucidated by theory of interfaces. It offers an insight into design of dynamic interface for water repellency. This strategy realizes the preparation of multifunctional, tunable and directional drive functions.
DOI: 10.1038/srep03024
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影响因子: 4.6
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发表时间: 2012-12-01
影响因子: 9.5
作者:
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