1. Bioinspired TiO2 Nanostructure Films with Special Wettability and Adhesion for Droplets Manipulation and Patterning.
- Author
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Yue-Kun Lai, Yu-Xin Tang, Jian-Ying Huang, Fei Pan, Zhong Chen, Ke-Qin Zhang, Fuchs, Harald, and Li-Feng Chi
- Subjects
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NANOSTRUCTURES , *WETTING , *MICROFLUIDIC analytical techniques , *NANOPARTICLES , *BIOMEDICAL engineering , *MOLECULAR self-assembly - Abstract
Patterned surfaces with special wettability and adhesion (sliding, sticky or patterned superoleophobic surface) can be found on many living creatures. They offer a versatile platform for microfluidic management and other biological functions. Inspired by their precise arrangement of structure and chemical component, we described a facile one-step approach to construct large scale pinecone-like anatase TiO2 particles (ATP) film. The as-prepared ATP film exhibits excellent superamphiphilic property in air, changes to underwater superoleophobicity with good dynamical stability. In addition, erasable and rewritable patterned superamphiphobic ATP films or three-dimensional (3D) Janus surfaces were constructed for a versatile platform for microfluidic management and biomedical applications. In a proof-of-concept study, robust super-antiwetting feet for artificial anti-oil strider at the oil/water interface, novel superamphiphobic surface for repeatable oil/water separation, and multifunctional patterned superamphiphobic ATP template for cell, fluorecent probe and inorganic nanoparticles site-selective immobilization were demonstrated. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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