Bioinspired Multifunctional Janus Particles for Droplet Manipulation

被引：155

作者：

Zhao, Yuanjin ^{[1
,2
,3
]}

Gu, Hongcheng ^{[1
]}

Xie, Zhuoying ^{[1
]}

Shum, Ho Cheung ^{[4
]}

Wang, Baoping ^{[2
]}

Gu, Zhongze ^{[1
,3
]}

机构：

[1] Southeast Univ, Sch Biol Sci & Med Engn, State Key Lab Bioelect, Nanjing 210096, Jiangsu, Peoples R China

[2] Southeast Univ, Sch Elect Sci & Engn, Nanjing 210096, Jiangsu, Peoples R China

[3] Southeast Univ Suzhou, Res Inst, Lab Environm & Biosafety, Suzhou 215123, Peoples R China

[4] Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 01期

基金：

中国国家自然科学基金;

关键词：

MAGNETIC LIQUID MARBLES; STRUCTURAL COLOR; CHIP;

D O I：

10.1021/ja310389w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：54 / 57

页数：4