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Laparoscopic Lens Defogging: a Review of Methods to Maintain a Clear Operating Field. Indian J Surg 2022. [DOI: 10.1007/s12262-021-03126-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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2
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Kouser T, Xiong Y, Yang D. Contribution of Superhydrophobic Surfaces and Polymer Additives to Drag Reduction. CHEMBIOENG REVIEWS 2021. [DOI: 10.1002/cben.202000036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Taiba Kouser
- Huazhong University of Science and Technology (HUST) Department of Mechanics 430074 Wuhan China
| | - Yongliang Xiong
- Huazhong University of Science and Technology (HUST) Department of Mechanics 430074 Wuhan China
- Hubei Key Laboratory of Engineering Structural Analysis and Safety Assessment Luoyu Road 1037 430074 Wuhan China
| | - Dan Yang
- Huazhong University of Science and Technology (HUST) School of Naval Architecture and Ocean Engineering 430074 Wuhan China
- Huazhong University of Science and Technology (HUST) Hubei Key Laboratory of Naval Architecture & Ocean Engineering Hydrodynamics 430074 Wuhan China
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Vijayan VM, Tucker BS, Baker PA, Vohra YK, Thomas V. Non-equilibrium hybrid organic plasma processing for superhydrophobic PTFE surface towards potential bio-interface applications. Colloids Surf B Biointerfaces 2019; 183:110463. [PMID: 31493629 DOI: 10.1016/j.colsurfb.2019.110463] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 08/02/2019] [Accepted: 08/26/2019] [Indexed: 01/02/2023]
Abstract
Superhydrophobic surfaces have gained increased attention due to the high water-repellency and self-cleaning capabilities of these surfaces. In the present study, we explored a novel hybrid method of fabricating superhydrophobic poly(tetrafluoroethylene) (PTFE) surfaces by combining the physical etching capability of oxygen plasma with the plasma-induced polymerization of a organic monomer methyl methacrylate (MMA). This novel hybrid combination of oxygen-MMA plasma has resulted in the generation of superhydrophobic PTFE surfaces with contact angle of 154°. We hypothesized that the generation of superhydrophobicity may be attributed to the generation of fluorinated poly(methyl methacrylate) (PMMA) moieties formed by the combined effects of physical etching causing de-fluorination of PTFE and the subsequent plasma polymerization of MMA. The plasma treated PTFE surfaces were then systematically characterized via XPS, FTIR, XRD, DSC and SEM analyses. The results have clearly shown a synergistic effect of the oxygen/MMA combination in comparison with either the oxygen plasma alone or MMA vapors alone. Furthermore, the reported new hybrid combination of Oxygen-MMA plasma has been demonstrated to achieve superhydrophobicity at lower power and short time scales than previously reported methods in the literature. Hence the reported novel hybrid strategy of fabricating superhydrophobic PTFE surfaces could have futuristic potential towards biointerface applications.
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Affiliation(s)
- Vineeth M Vijayan
- Center for Nanoscale Materials and Biointergration, College of Arts and Sciences, University of Alabama at Birmingham, 1300 University Blvd. CH 386 Birmingham, AL 35294, United States; Polymers & Healthcare Materials/ Devices, Department of Material Science and Engineering, University of Alabama at Birmingham, 1150 10th Avenue SouthBirmingham, AL 35294, United States
| | - Bernabe S Tucker
- Polymers & Healthcare Materials/ Devices, Department of Material Science and Engineering, University of Alabama at Birmingham, 1150 10th Avenue SouthBirmingham, AL 35294, United States
| | - Paul A Baker
- Center for Nanoscale Materials and Biointergration, College of Arts and Sciences, University of Alabama at Birmingham, 1300 University Blvd. CH 386 Birmingham, AL 35294, United States
| | - Yogesh K Vohra
- Center for Nanoscale Materials and Biointergration, College of Arts and Sciences, University of Alabama at Birmingham, 1300 University Blvd. CH 386 Birmingham, AL 35294, United States
| | - Vinoy Thomas
- Center for Nanoscale Materials and Biointergration, College of Arts and Sciences, University of Alabama at Birmingham, 1300 University Blvd. CH 386 Birmingham, AL 35294, United States; Polymers & Healthcare Materials/ Devices, Department of Material Science and Engineering, University of Alabama at Birmingham, 1150 10th Avenue SouthBirmingham, AL 35294, United States.
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4
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Scarratt LR, Steiner U, Neto C. A review on the mechanical and thermodynamic robustness of superhydrophobic surfaces. Adv Colloid Interface Sci 2017; 246:133-152. [PMID: 28577754 DOI: 10.1016/j.cis.2017.05.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/15/2017] [Accepted: 05/29/2017] [Indexed: 12/15/2022]
Abstract
Advancements in the fabrication and study of superhydrophobic surfaces have been significant over the past 10years, and some 20years after the discovery of the lotus effect, the study of special wettability surfaces can be considered mainstream. While the fabrication of superhydrophobic surfaces is well advanced and the physical properties of superhydrophobic surfaces well-understood, the robustness of these surfaces, both in terms of mechanical and thermodynamic properties, are only recently getting attention in the literature. In this review we cover publications that appeared over the past ten years on the thermodynamic and mechanical robustness of superhydrophobic surfaces, by which we mean the long term stability under conditions of wear, shear and pressure. The review is divided into two parts, the first dedicated to thermodynamic robustness and the second dedicated to mechanical robustness of these complex surfaces. Our work is intended as an introductory review for researchers interested in addressing longevity and stability of superhydrophobic surfaces, and provides an outlook on outstanding aspects of investigation.
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5
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Variable wettability control of a polymer surface by selective ultrasonic imprinting and hydrophobic coating. Colloid Polym Sci 2016. [DOI: 10.1007/s00396-016-3902-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Li JH, Weng R, Di XQ, Yao ZW. Gradient and weather resistant hybrid super-hydrophobic coating based on fluorinated epoxy resin. J Appl Polym Sci 2014. [DOI: 10.1002/app.40955] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jin-Hua Li
- Department of Material Sciences and Engineering; Wuhan University of Technology; Wuhan 430070 China
| | - Rui Weng
- Department of Material Sciences and Engineering; Wuhan University of Technology; Wuhan 430070 China
| | - Xi-Qiang Di
- Department of Material Sciences and Engineering; Wuhan University of Technology; Wuhan 430070 China
| | - Zeng-Wen Yao
- Department of Material Sciences and Engineering; Wuhan University of Technology; Wuhan 430070 China
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7
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Glaris P, Coulon JF, Dorget M, Poncin-Epaillard F. Thermal annealing as a new simple method for PTFE texturing. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.08.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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8
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Poncin-Epaillard F, Herry J, Marmey P, Legeay G, Debarnot D, Bellon-Fontaine M. Elaboration of highly hydrophobic polymeric surface — a potential strategy to reduce the adhesion of pathogenic bacteria? MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:1152-61. [DOI: 10.1016/j.msec.2012.12.020] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 11/22/2012] [Accepted: 12/01/2012] [Indexed: 10/27/2022]
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9
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Superhydrophobic Surfaces: Beyond Lotus Effect. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/978-1-4614-5372-7_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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10
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Peng YT, Lo KF, Juang YJ. Constructing a superhydrophobic surface on polydimethylsiloxane via spin coating and vapor-liquid sol-gel process. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:5167-5171. [PMID: 20020726 DOI: 10.1021/la903646h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this study, a superhydrophobic surface on polydimethylsiloxane (PDMS) substrate was constructed via the proposed vapor-liquid sol-gel process in conjunction with spin coating of dodecyltrichlorosilane (DTS). Unlike the conventional sol-gel process where the reaction takes place in the liquid phase, layers of silica (SiO(2)) particles were formed through the reaction between the reactant spin-coated on the PDMS surface and vapor of the acid solution. This led to the SiO(2) particles inlaid on the PDMS surface. Followed by subsequent spin coating of DTS solution, the wrinkle-like structure was formed, and the static contact angle of the water droplet on the surface could reach 162 degrees with 2 degrees sliding angle and less than 5 degrees contact angle hysteresis. The effect of layers of SiO(2) particles, concentrations of DTS solution and surface topography on superhydrophobicity of the surface is discussed.
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Affiliation(s)
- Yu-Ting Peng
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan 70101
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11
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Rahmawan Y, Moon MW, Kim KS, Lee KR, Suh KY. Wrinkled, dual-scale structures of diamond-like carbon (DLC) for superhydrophobicity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:484-491. [PMID: 19810723 DOI: 10.1021/la902129k] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We present a simple two-step method to fabricate dual-scale superhydrophobic surfaces by using replica molding of poly(dimethylsiloxane) (PDMS) micropillars, followed by deposition of a thin, hard coating layer of a SiO(x)-incorporated diamond-like carbon (DLC). The resulting surface consists of microscale PDMS pillars covered by nanoscale wrinkles that are induced by residual compressive stress of the DLC coating and a difference in elastic moduli between DLC and PDMS without any external stretching or thermal contraction on the PDMS substrate. We show that the surface exhibits superhydrophobic properties with a static contact angle over 160 degrees for micropillar spacing ratios (interpillar gap divided by diameter) less than 4. A transition of the wetting angle to approximately 130 degrees occurs for larger spacing ratios, changing the wetting from a Cassie-Cassie state (C(m)-C(n)) to a Wenzel-Cassie state (W(m)-C(n)), where m and n denote micro- and nanoscale roughness, respectively. The robust superhydrophobicity of the Cassie-Cassie state is attributed to stability of the Cassie state on the nanoscale wrinkle structures of the hydrophobic DLC coating, which is further explained by a simple mathematical theory on wetting states with decoupling of nano- and microscale roughness in dual scale structures.
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Affiliation(s)
- Yudi Rahmawan
- School of Mechanical and Aerospace Engineering, WCU program for Multiscale Design, Seoul National University, Seoul 151-742, Republic of Korea
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Yeh KY, Cho KH, Chen LJ. Preparation of superhydrophobic surfaces of hierarchical structure of hybrid from nanoparticles and regular pillar-like pattern. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:14187-14194. [PMID: 20560557 DOI: 10.1021/la9015492] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The hierarchical structure silica surface of inlaying silica nanoparticles along a regular pillar-like pattern is fabricated by embossing silica sol-gel precursor mixed with silica nanoparticles on glass substrates with an elastomeric mold. The substrate is further modified by a self-assembled fluorosilanated monolayer to reduce its surface energy. The advancing/receding contact angle measurements are performed to demonstrate that a water droplet on these surfaces can exhibit a transition from the Wenzel state to the Cassie state due to the addition of silica nanoparticles to enhance its surface roughness.
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Affiliation(s)
- Kuan-Yu Yeh
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
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13
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Zhang BT, Liu BL, Deng XB, Cao SS, Hou XH, Chen HL. Fabricating superhydrophobic surfaces by molecular accumulation of polysiloxane on the wool textile finishing. Colloid Polym Sci 2007. [DOI: 10.1007/s00396-007-1801-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Li XM, Reinhoudt D, Crego-Calama M. What do we need for a superhydrophobic surface? A review on the recent progress in the preparation of superhydrophobic surfaces. Chem Soc Rev 2007; 36:1350-68. [PMID: 17619692 DOI: 10.1039/b602486f] [Citation(s) in RCA: 897] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Superhydrophobic surfaces have drawn a lot of interest both in academia and in industry because of the self-cleaning properties. This critical review focuses on the recent progress (within the last three years) in the preparation, theoretical modeling, and applications of superhydrophobic surfaces. The preparation approaches are reviewed according to categorized approaches such as bottom-up, top-down, and combination approaches. The advantages and limitations of each strategy are summarized and compared. Progress in theoretical modeling of surface design and wettability behavior focuses on the transition state of superhydrophobic surfaces and the role of the roughness factor. Finally, the problems/obstacles related to applicability of superhydrophobic surfaces in real life are addressed. This review should be of interest to students and scientists interested specifically in superhydrophobic surfaces but also to scientists and industries focused in material chemistry in general.
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Affiliation(s)
- Xue-Mei Li
- Laboratory of Supramolecular Chemistry and Technology group, MESA+ Institute for Nanotechnology, University of Twente, PO Box 217, 7500AE, Enschede, The Netherlands
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