Bioinspired Multifunctional Janus Particles for Droplet Manipulation

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• 作者：Yuanjin Zhao ; Hongcheng Gu ; Zhuoying Xie ; Ho Cheung Shum ; Baoping Wang ; Zhongze Gu
• 刊名：The Journal of the American Chemical Society
• 出版年：2013
• 出版时间：January 9, 2013
• 年：2013
• 卷：135
• 期：1
• 页码：54-57
• 全文大小：272K
• 年卷期：v.135,no.1(January 9, 2013)
• ISSN：1520-5126

文摘

Inspired by the nipple arrays covering mosquitoes鈥?eyes and the heterogeneous textured bumps on beetles鈥?backs, we have developed a new kind of Janus particle with multiplexed features, such as different boss arrays and wettability compartmentalized on the same surface, and an anisotropic color and magnetic properties. The prepared Janus particles can be anchored at the air鈥搘ater interface and act as a highly flexible barrier for preventing coalescence of water droplets. The incorporation of magnetic nanoparticles can give the Janus particles magnetic responsiveness for controlled transportation and coalescence of liquid marbles, while the structural colors in the Janus particles can be employed for barcoding of the encapsulated liquid marbles. We believe that these small Janus particles have great potential as components for constructing intelligent interfacial objects.