State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
J Am Chem Soc. 2013 Jan 9;135(1):54-7. doi: 10.1021/ja310389w. Epub 2012 Dec 26.
Inspired by the nipple arrays covering mosquitoes' eyes and the heterogeneous textured bumps on beetles' 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-water 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.
受覆盖在蚊子眼睛上的乳突阵列和甲虫背部异质纹理的启发，我们开发了一种新型的具有多重特征的 Janus 粒子，例如在同一表面上具有不同的凸起阵列和润湿性分区，以及各向异性的颜色和磁性。所制备的 Janus 粒子可以固定在气-水界面上，并作为高度灵活的障碍物，防止液滴聚结。磁性纳米粒子的掺入可以使 Janus 粒子具有磁响应性，从而控制液滴的运输和聚结，而 Janus 粒子中的结构颜色可用于封装液滴的编码。我们相信，这些小的 Janus 粒子作为构建智能界面物体的组件具有巨大的潜力。
