PMID- 37811382 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231031 IS - 2296-4185 (Print) IS - 2296-4185 (Electronic) IS - 2296-4185 (Linking) VI - 11 DP - 2023 TI - Porous polydimethylsiloxane films with specific surface wettability but distinct regular physical structures fabricated by 3D printing. PG - 1272565 LID - 10.3389/fbioe.2023.1272565 [doi] LID - 1272565 AB - 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. CI - Copyright (c) 2023 He, Wang, Mu, Wang, Su, Chen, Luo, Wu, Lan and Mao. FAU - He, Zhoukun AU - He Z AD - School of Mechanical Engineering, Chengdu University, Chengdu, China. AD - Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China. FAU - Wang, Na AU - Wang N AD - School of Mechanical Engineering, Chengdu University, Chengdu, China. AD - Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China. FAU - Mu, Linpeng AU - Mu L AD - School of Mechanical Engineering, Chengdu University, Chengdu, China. AD - Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China. FAU - Wang, Zhuo AU - Wang Z AD - School of Mechanical Engineering, Chengdu University, Chengdu, China. AD - Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China. FAU - Su, Jie AU - Su J AD - School of Mechanical Engineering, Chengdu University, Chengdu, China. AD - Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China. FAU - Chen, Yikun AU - Chen Y AD - School of Mechanical Engineering, Chengdu University, Chengdu, China. AD - Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China. FAU - Luo, Mingdong AU - Luo M AD - Luzhou Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, China. AD - Institute of Stomatology, Southwest Medical University, Luzhou, China. FAU - Wu, Ya AU - Wu Y AD - Department of Vascular Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China. AD - Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China. FAU - Lan, Xiaorong AU - Lan X AD - Luzhou Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, China. AD - Institute of Stomatology, Southwest Medical University, Luzhou, China. FAU - Mao, Jiayan AU - Mao J AD - Department of Nephrology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China. AD - Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China. LA - eng PT - Journal Article DEP - 20230921 PL - Switzerland TA - Front Bioeng Biotechnol JT - Frontiers in bioengineering and biotechnology JID - 101632513 PMC - PMC10551163 OTO - NOTNLM OT - 3D printing OT - PDMS OT - anisotropic OT - superhydrophobic OT - surface wettability COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/10/09 12:42 MHDA- 2023/10/09 12:43 PMCR- 2023/01/01 CRDT- 2023/10/09 06:16 PHST- 2023/08/04 00:00 [received] PHST- 2023/09/13 00:00 [accepted] PHST- 2023/10/09 12:43 [medline] PHST- 2023/10/09 12:42 [pubmed] PHST- 2023/10/09 06:16 [entrez] PHST- 2023/01/01 00:00 [pmc-release] AID - 1272565 [pii] AID - 10.3389/fbioe.2023.1272565 [doi] PST - epublish SO - Front Bioeng Biotechnol. 2023 Sep 21;11:1272565. doi: 10.3389/fbioe.2023.1272565. eCollection 2023.