Multifunctional wettability patterns prepared by laser processing on superhydrophobic TiO2 nanostructured surfaces

Huaqiong Li; Yuekun Lai; Jianying Huang; Yuxin Tang; Lei Yang; Zhong Chen; Keqin Zhang; Xincai Wang; Lay Poh Tan

doi:10.1039/C4TB01814A

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Multifunctional wettability patterns prepared by laser processing on superhydrophobic TiO₂ nanostructured surfaces†

Huaqiong Li,‡^b Yuekun Lai,‡*^a Jianying Huang,^a Yuxin Tang,^b Lei Yang,^c Zhong Chen,^b Keqin Zhang,^a Xincai Wang^d and Lay Poh Tan*^b

Author affiliations

* Corresponding authors

^a National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, P. R. China
E-mail: yklai@suda.edu.cn

^b School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore, Singapore
E-mail: lptan@ntu.edu.sg

^c Institute of Orthopaedics and Department of Orthopaedic Surgery of First Affiliated Hospital, Soochow University, Suzhou 215006, P. R. China

^d Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore

Abstract

A novel femtosecond laser patterning technique is reported to construct a three-dimensional (3D) wettability pattern on a superhydrophobic TiO₂ nanotube array (TNA) surface in one-step. A 3D binary TNA pattern with extremely high contrast for microfluidic manipulators and biomedical scaffolds is used to guide droplet transportation and human mesenchymal stem cell site-selective growth, respectively.

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Article information

DOI: https://doi.org/10.1039/C4TB01814A
Article type: Communication
Submitted: 04 Nov 2014
Accepted: 21 Nov 2014
First published: 21 Nov 2014

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J. Mater. Chem. B, 2015,3, 342-347

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Multifunctional wettability patterns prepared by laser processing on superhydrophobic TiO₂ nanostructured surfaces

H. Li, Y. Lai, J. Huang, Y. Tang, L. Yang, Z. Chen, K. Zhang, X. Wang and L. P. Tan, J. Mater. Chem. B, 2015, 3, 342 DOI: 10.1039/C4TB01814A

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Journal of Materials Chemistry B