The preparation and applications of bio-inspired slippery surface by femtosecond laser micro-nano manufacturing

Yang Qing; Cheng Yang; Fang Zheng; Zhang Jialiang; Hou Xun; Chen Feng

doi:10.12086/oee.2022.210326

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Yang Q, Cheng Y, Fang Z, et al. The preparation and applications of bio-inspired slippery surface by femtosecond laser micro-nano manufacturing[J]. Opto-Electron Eng, 2022, 49(1): 210326. doi: 10.12086/oee.2022.210326

Citation:

Yang Q, Cheng Y, Fang Z, et al. The preparation and applications of bio-inspired slippery surface by femtosecond laser micro-nano manufacturing[J]. Opto-Electron Eng, 2022, 49(1): 210326. doi: 10.12086/oee.2022.210326

The preparation and applications of bio-inspired slippery surface by femtosecond laser micro-nano manufacturing

1.
School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
2.
State Key Laboratory for Manufacturing System Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
3.
Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronics & Information Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China

Fund Project: National Natural Science Foundation of China (62175195, 61875158), National Key Research and Development Program of China ( 2017YFB1104700), and Fundamental Research Funds for the Central Universities

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^*Corresponding author: chenfeng@mail.xjtu.edu.cn

Received Date 09 October 2021

Revised Date 05 November 2021

Published Date 25 January 2022

Abstract

Abstract

The slippery surface inspired by Nepenthes has received research and industry attentions due to its excellent liquid repellency, stability and self-repair property. The femtosecond laser is a powerful method to prepare the slippery surfaces due to its universality in processing materials with high precision, and high controllability. In this paper, taking the lyophobicity of slippery surfaces as a background, using femtosecond laser mico/nano-manufacturing technology as a method, the development of slippery surfaces by femtosecond laser was summarized from two perspectives, including the femtosecond laser mico/nano-manufacturing and applications of slippery surfaces. By controlling the processing parameters of femtosecond laser, the slippery surfaces could be fabricated on various materials, such as polymers, hard brittle transparent material, and metals. The prepared slippery surface can be applied in the fields of droplet and bubble manipulation, biological anticoagulation, antifouling, and anti-corrosion. Finally, the challenges of slippery surfaces were summarized.
- slippery surface /
- femtosecond laser /
- micro-nano manufacture /
- hemocompatibility /
- lyophobicity

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References

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Overview

Overview

Nepenthes pitcher plant is a tropical insectivorous plant which is able to trap and digest insects. This unique property is mainly due to the rich micro/nano porous structures on the surfaces filled with a layer of lubricating, thus forming a slippery liquid-infused porous surface (SLIPS). When the insects stand on the mouth of pitch plant, they can easily fall into the pitcher because its inner surface is too smooth and thus digested by the digestive juices. Due to the mechanism of liquid-liquid contact between the lubricant and repelled object, SLIPS shows high stability and versatile liquid-repellency compared with superhydrophobic surfaces inspired by lotus leaves. Due to the fluidity of the lubricant, it can timely flow to the surface defects caused by external force and help recover the favorable slippery property. These excellent liquid repellency, stability and self-healing properties of SLIPS have attracted wide attentions from researchers, who carried out a large number of related studies. Methods to prepare SLIPS are mostly based on the three parts: fabrication of micro/nano-structures, low surface energy treatment and lubricant infusion. The fabrication of rough structure is the essential part during the process. Femtosecond laser has the ultra-short pulse width and ultra-high peak power, so it can process the majority of materials with high processing accuracy and strong controllability. Therefore, femtosecond laser has become a powerful tool for preparing the micro/nano-structure on the SLIPS. In addition, the femtosecond laser processing is directly performed on the material for subtractive manufacturing. It shows more stability compared with chemical treatment. In this paper, we focus on the preparation of SLIPS on different materials by femtosecond laser, including polymers, hard and brittle transparent materials, and metals. Then, the application of SLIPS is summarized in the fields of droplet bubble manipulation, biological anticoagulation, anti-fouling, and corrosion prevention. Finally, challenges of slippery surfaces were summarized.