Controllable Microfluidic Fabrication of Microstructured Materials from Nonspherical Particles to Helices,Macromolecular Rapid Communications

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Controllable Microfluidic Fabrication of Microstructured Materials from Nonspherical Particles to Helices
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2017-09-01 , DOI: 10.1002/marc.201700429
Wei Wang _{1,

2} , Xiao-Heng He _{1,

3} , Mao-Jie Zhang _{1,

4} , Meng-Jiao Tang ₁ , Rui Xie _{1,

2} , Xiao-Jie Ju _{1,

2} , Zhuang Liu _{1,

2} , Liang-Yin Chu _{1,

2,

5}

Affiliation

This work reports on a facile and flexible strategy based on the deformation of encapsulated droplets in fiber‐like polymeric matrices for template synthesis of controllable microstructured materials from nonspherical microparticles to complex 3D helices. Monodisperse droplets generated from microfluidics are encapsulated into crosslinked polymeric networks via an interfacial crosslinking reaction in microchannel to in situ produce the droplet‐containing, fiber‐like matrices. By stretching and twining the dried fiber‐like matrices, the encapsulated droplets can be flexibly engineered into versatile shapes for template synthesis of controllable nonspherical microparticles and helices. Moreover, magnetic helices can be fabricated by simply dispersing magnetic Fe₃O₄ nanoparticles in the droplets to achieve rotational and translational motion under a rotated magnetic field. This work provides a simple and versatile strategy for the template synthesis of advanced functional microstructured materials with flexible shapes.

中文翻译：

从非球形粒子到螺旋的微结构材料的可控微流体制备

这项工作报告了一种灵活而灵活的策略，该策略基于纤维状聚合物基质中包囊液滴的变形，用于从非球形微粒到复杂3D螺旋的可控微结构材料的模板合成。由微流体产生的单分散液滴通过微通道中的界面交联反应被封装到交联的聚合物网络中，从而原位产生包含液滴的纤维状基质。通过将干燥的纤维状基质拉伸并缠绕在一起，可以将封装的液滴灵活地改造成多种形状，以进行可控非球形微粒和螺旋的模板合成。而且，可以通过简单地分散磁性Fe ₃ O ₄来制造磁性螺旋。液滴中的纳米粒子在旋转磁场下实现旋转和平移运动。这项工作为具有灵活形状的高级功能性微结构材料的模板合成提供了一种简单而通用的策略。

更新日期：2017-09-01

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