writer：Wendong Liu, Xueyao Liu, Jiaozi Fangteng, Shuli Wang, Liping Fang, Huaizhong Shen, Siyuan Xiang, Hon
keywords：无
source：期刊
specific source：Nanoscale, 2014, 6, 13845–13853.
Issue time：2014年

This paper presents a facile method to fabricate bioinspired polyethylene terephthalate (PET) nanocone

arrays via colloidal lithography. The aspect ratio (AR) of the nanocones can be ?nely modulated ranging

from 1 to 6 by regulating the etching time. The samples with the AR value of 6 can present underwater

superoleophobicity with the underwater oil contact angle (OCA) of 171.8°. The as-prepared PET nanocone

arrays perform anti-bioadhesion behavior, which inhibits the formation of the actin cytoskeleton when it

used as the substrate for cell culture. Moreover, the oil wettability is temperature controlled after modify-

ing the PET nanocone arrays with PNIPAAm ?lm, and the oil wettability of the functionalized nanocone

arrays can be transformed from the superoleophobic state with OCA about 151° to the oleophilic state

with OCA about 25° reversibly. Due to the high-throughput, parallel fabrication and cost-e?ciency of this

method, it will be favourable for researchers to introduce oleophobic properties to various substrate and

device surfaces. Due to the superoleophobicity and simple functionalizing properties, the PET nanocone

arrays are very promising surfaces for anti-adhesion, self-cleaning and have potential applications in

material, medical, and biological ?elds.