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Issue 36, 2015
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Fish scale inspired design of underwater superoleophobic microcone arrays by sucrose solution assisted femtosecond laser irradiation for multifunctional liquid manipulation

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Abstract

The preparation of superhydrophilic/superoleophilic/underwater superoleophobic surfaces is inspired by natural surfaces such as fish scales possessing hierarchical micro/nanostructures. In this paper, we report the assembly of self-organized hierarchical microcone arrays on a nickel surface by sucrose solution-assisted femtosecond laser irradiation. The processed surface is superhydrophilic (13.47°–4.01°), superoleophilic (7.45°–3.73°), and underwater superoleophobic (135.22°–166.16°) which are comparable to those of fish scales. The wettabilities of the processed surfaces are tunable by adjusting the mass ratio of sucrose to water and pulse energy to control the height (1.62–10.34 μm) and size (2.1–2.81 μm) of the microcones. Multifunctional liquid manipulation such as microdroplet transferring, static and dynamic storage, liquid transportation and mixing is demonstrated. Our proposed method features rapidness, simplicity and ease of large-area fabrication, which may find broader applications in many fields such as microfluidic devices, fluid microreactors, biomedicine, biomedical scaffolds, and chemical–biological sensors.

Graphical abstract: Fish scale inspired design of underwater superoleophobic microcone arrays by sucrose solution assisted femtosecond laser irradiation for multifunctional liquid manipulation

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Supplementary files

Article information


Submitted
13 Jul 2015
Accepted
04 Aug 2015
First published
05 Aug 2015

J. Mater. Chem. A, 2015,3, 18675-18683
Article type
Paper

Fish scale inspired design of underwater superoleophobic microcone arrays by sucrose solution assisted femtosecond laser irradiation for multifunctional liquid manipulation

G. Li, Y. Lu, P. Wu, Z. Zhang, J. Li, W. Zhu, Y. Hu, D. Wu and J. Chu, J. Mater. Chem. A, 2015, 3, 18675
DOI: 10.1039/C5TA05265C

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