Fabrication of a Superhydrophobic Surface with Adjustable Hydrophobicity and Adhesivity Based on a Silica Nanotube Array

Bulletin of the Korean chemical society

Jaeeun Yu¹  Sang Jun Son¹ 

关键词: Silica nanotube;    Superhydrophobicity;    Wettability;    Nanoarray;    Biochip;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

A superhydrophobic surface with a water contact angle > 150° has attracted great interest from both fundamental and practical aspects. In this study, we demonstrated that hydrophobicity of a silica nanotube (SNT) array can be easily controlled by the SNT aspect ratio. In addition, the adhesive and anti-adhesive properties were controlled without modifying the hydrophobic surface. Various silica structures on a polydimethylsiloxane substrate were prepared using the desired alumina template. Bundle-arrayed and bowlarrayed silica surfaces exhibited extraordinary superhydrophobicity due to the large frontal surface area and hierarchical micro/nanostructure. As the strategy used in this study is biocompatible and a wide range of hydrophobicities are capable of being controlled by the SNT aspect ratio, a hydrophobic surface composed of an SNT array could be an attractive candidate for bioapplications, such as cell and protein chips.

【 授权许可】

Unknown