Porous polydimethylsiloxane films with specific surface wettability but distinct regular physical structures fabricated by 3D printing

Zhoukun He; Zhoukun He; Na Wang; Na Wang; Linpeng Mu; Linpeng Mu; Zhuo Wang; Zhuo Wang; Jie Su; Jie Su; Yikun Chen; Yikun Chen; Mingdong Luo; Mingdong Luo; Ya Wu; Ya Wu; Xiaorong Lan; Xiaorong Lan; Jiayan Mao; Jiayan Mao

doi:10.3389/fbioe.2023.1272565

Frontiers in Bioengineering and Biotechnology (Sep 2023)

Porous polydimethylsiloxane films with specific surface wettability but distinct regular physical structures fabricated by 3D printing

Zhoukun He,
Zhoukun He,
Na Wang,
Na Wang,
Linpeng Mu,
Linpeng Mu,
Zhuo Wang,
Zhuo Wang,
Jie Su,
Jie Su,
Yikun Chen,
Yikun Chen,
Mingdong Luo,
Mingdong Luo,
Ya Wu,
Ya Wu,
Xiaorong Lan,
Xiaorong Lan,
Jiayan Mao,
Jiayan Mao

Affiliations

Zhoukun He: School of Mechanical Engineering, Chengdu University, Chengdu, China
Zhoukun He: Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
Na Wang: School of Mechanical Engineering, Chengdu University, Chengdu, China
Na Wang: Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
Linpeng Mu: School of Mechanical Engineering, Chengdu University, Chengdu, China
Linpeng Mu: Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
Zhuo Wang: School of Mechanical Engineering, Chengdu University, Chengdu, China
Zhuo Wang: Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
Jie Su: School of Mechanical Engineering, Chengdu University, Chengdu, China
Jie Su: Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
Yikun Chen: School of Mechanical Engineering, Chengdu University, Chengdu, China
Yikun Chen: Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
Mingdong Luo: Luzhou Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, China
Mingdong Luo: Institute of Stomatology, Southwest Medical University, Luzhou, China
Ya Wu: Department of Vascular Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
Ya Wu: Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
Xiaorong Lan: Luzhou Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, China
Xiaorong Lan: Institute of Stomatology, Southwest Medical University, Luzhou, China
Jiayan Mao: Department of Nephrology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
Jiayan Mao: Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China

DOI: https://doi.org/10.3389/fbioe.2023.1272565
Journal volume & issue: Vol. 11

Abstract

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Porous polydimethylsiloxane (PDMS) films with special surface wettability have potential applications in the biomedical, environmental, and structural mechanical fields. However, preparing porous PDMS films with a regular surface pattern using conventional methods, such as chemical foaming or physical pore formation, is challenging. In this study, porous PDMS films with a regular surface pattern are designed and prepared using 3D printing to ensure the formation of controllable and regular physical structures. First, the effect of the surface wettability of glass substrates with different surface energies (commercial hydrophilic glass and hydrophobic glass (F-glass) obtained by treating regular glass with 1H,1H,2H,2H-perfluorooctyl-trichlorosilane) on the structural characteristics of the 3D printed PDMS filaments is investigated systematically. Additionally, the effect of the printing speed and the surface wettability of the glass substrate on the PDMS filament morphology is investigated synchronously. Next, using the F-glass substrate and an optimized printing speed, the effects of the number of printed layers on both the morphologies of the individual PDMS filaments and porous PDMS films, and the surface wettability of the films are studied. This study reveals that regularly patterned porous PDMS films with distinct structural designs but the same controllable surface wettability, such as anisotropic surface wettability and superhydrophobicity, can be easily fabricated through 3D printing. This study provides a new method for fabricating porous PDMS films with a specific surface wettability, which can potentially expand the application of porous PDMS films.

Published in Frontiers in Bioengineering and Biotechnology

ISSN: 2296-4185 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology: Biotechnology
Website: http://www.frontiersin.org/bioengineering_and_biotechnology

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