Bio-inspired, topologically connected colloidal arrays via wrinkle and plasma processing
Bio-inspired, topologically connected colloidal arrays via wrinkle and plasma processing
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DOI：
10.1016/j.colsurfa.2013.10.050
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发表时间：
2014-02
期刊：
影响因子：
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通讯作者：
H. Endo;Y. Mochizuki;Masahiro Tamura;T. Kawai
中科院分区：
文献类型：
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作者：
H. Endo;Y. Mochizuki;Masahiro Tamura;T. Kawai
我们研究了各种拓扑图案的聚苯乙烯胶体颗粒的一维阵列，包括单一的，螺旋，锯齿形，三线，和随机阵列集成在正弦皱纹槽，通过简单的旋涂制造。在另外的处理步骤中，我们使用起皱的基板作为印模，以将形成的聚苯乙烯图案转移到平面支撑物上。随后的等离子体蚀刻的颗粒串产生各向异性，拓扑连接的颗粒。有趣的是，这些胶体链可以很容易地释放和分散，以保持拓扑对齐和长的长度（>100 μm），具有自立能力。根据拓扑结构，这些连接的粒子阵列将使我们能够创建新的生物启发材料和设备，如人工肌肉和具有灵活运动的软机器人。
We investigated the fabrication of various topologically patterned 1D arrays of polystyrene colloidal particles, including single, helical, zigzag, triple-line, and random arrays integrated in sinusoidal wrinkle grooves, through simple spin-coating. In an additional processing step, we used the wrinkled substrates as stamps to transfer the formed polystyrene patterns onto planar supports. Subsequent plasma etching of the particle strings yielded anisotropic, topologically connected particles. Interestingly, these colloidal chains can be easily released and dispersed to maintain the topological alignment and long length (>100 μm) with free-standing capability. Depending on the topological structures, these connected particle arrays would enable us to create new bio-inspired materials and devices such as artificial muscles and soft robotics with flexible motion.