1
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Chen ZT, Lee BS, Tu TH, Chan YT, Chang CC. Covalent bonding of quaternary ammonium compounds and zwitterionic polymer functional layers on polydimethylsiloxane against Escherichia Coli adhesion. J Biomater Appl 2024; 38:772-783. [PMID: 38058117 DOI: 10.1177/08853282231219063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
Quaternary ammonium compounds (QACs) are recognized by the World Health Organization as a useful disinfectant against microbes. The synergistic effect of zwitterionic polymers with QACs as antimicrobial agents rather than QACs alone is yet to be investigated. A potential strategy is the use of covalent bonding to halt the release of minute antibacterials and a hierarchy of functional layers to detain and annihilate microbes. The strategy was tested on a polydimethylsiloxane (PDMS) surface on which quaternized poly(2-dimethylaminoethyl methacrylate) (qDMA+) and sulfobetaine (SBMA) were hierarchically functionalized. Attenuated total reflectance Fourier transform infrared analysis confirmed the quaternization of DMA to qDMA+, grafting of qDMA + on PDMS (PDMS-qDMA+), and grafting of the SBMA overlayer on PDMS-qDMA+ (PDMS-qDMA+-SB). Contact angle measurement showed that PDMS-qDMA + exhibited the lowest contact angle (26.2 ± 2.9°) compared with the hydrophobic PDMS (115.2 ± 1.6°), but that of PDMSqDMA+-SB increased to 56.3 ± 1.3°. The Escherichia coli survival count revealed that PDMS-qDMA+ and PDMS-qDMA+-SB exhibited significantly greater bactericidal ability than PDMS. Confocal laser scanning microscopy revealed fewer dead bacteria on PDMS-qDMA+-SB than on PDMS-qDMA+. Scanning electron microscopy demonstrated that E. coli was disintegrated on the functionalized surface via dual-end cell lysis. To the best of our knowledge, this is the first observation of this type of process. The results confirmed the potent antibacterial and cell disruption activities of the qDMA+ and SBMA modified PDMS surface.
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Affiliation(s)
- Zi-Ti Chen
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Bor-Shiunn Lee
- Graduate Institute of Oral Biology, School of Dentistry, National Taiwan Universityand National Taiwan University Hospital, Taipei, Taiwan
| | - Tsung-Han Tu
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Yi-Tsu Chan
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Che-Chen Chang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
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2
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Wang D, Ma Z, Tian X. Effectiveness of organic solvents for recovering collapsed PDMS micropillar arrays. RSC Adv 2023; 13:4874-4879. [PMID: 36762086 PMCID: PMC9901194 DOI: 10.1039/d2ra08109a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 01/30/2023] [Indexed: 02/09/2023] Open
Abstract
Polydimethylsiloxane (PDMS) micropillar arrays are widely used in research labs and engineering fields as analytical tools for various purposes. When the micropillar length or density surpasses a critical value, micropillars tend to collapse with each other and become unusable. Restoring collapsed PDMS micropillars typically involves the use of low surface tension solvents and ultrasound sonication, but such approach has received little success to date. In this work, we examined the effectiveness of different types of solvents for restoring collapsed PDMS micropillar arrays and show that the swelling ratio of PDMS in selected solvents constitutes an important factor in the effectiveness of restoring collapsed PDMS micropillars. Our results could be a promoter in recycling PDMS micropillar arrays and achieving economic and social benefits.
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Affiliation(s)
- Dong Wang
- School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China .,National Key Laboratory of Science and Technology on Material under Shock and Impact Beijing 100081 China.,Tangshan Research Institute, Beijing Institute of Technology Tangshan 063000 China
| | - Zhuang Ma
- School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China .,National Key Laboratory of Science and Technology on Material under Shock and Impact Beijing 100081 China.,Tangshan Research Institute, Beijing Institute of Technology Tangshan 063000 China.,Beijing Institute of Technology Chongqing Innovation Center Chongqing, 401120 China
| | - Xinchun Tian
- School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China .,National Key Laboratory of Science and Technology on Material under Shock and Impact Beijing 100081 China
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3
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Lu Y, Lin C, Guo M, Rong Y, Huang Y, Wu C. Effects of Ambient Temperature on Nanosecond Laser Micro-Drilling of Polydimethylsiloxane (PDMS). MICROMACHINES 2022; 14:90. [PMID: 36677150 PMCID: PMC9864420 DOI: 10.3390/mi14010090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/17/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
In this research, effects of ambient temperature (-100 °C-200 °C) on nanosecond laser micro-drilling of polydimethylsiloxane (PDMS) was investigated by simulation and experiment. A thermo-mechanical coupled model was established, and it was indicated that the top and bottom diameter of the micro-hole decreased with the decrease of the ambient temperature, and the micro-hole taper increased with the decrease of the ambient temperature. The simulation results showed a good agreement with the experiment results in micro-hole geometry; the maximum prediction errors of the top micro-hole diameter, the bottom micro-hole diameter and micro-hole taper were 2.785%, 6.306% and 9.688%, respectively. The diameter of the heat-affected zone decreased with the decrease of the ambient temperature. The circumferential wrinkles were controlled by radial compressive stress. As the ambient temperature increased from 25 °C to 200 °C, the radial compressive stress gradually decreased, which led to the circumferential wrinkles gradually evolving in the radial direction. This work provides a new idea and method based on ambient temperature control for nanosecond laser processing of PDMS, which provides exciting possibilities for a wider range of engineering applications of PDMS.
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Affiliation(s)
- Ya Lu
- State Key Lab of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
- Guangdong Provincial Key Laboratory of Digital Manufacturing Equipment, Guangdong HUST Industrial Technology Research Institute, Dongguan 523808, China
| | - Chaoran Lin
- State Key Lab of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Minghui Guo
- State Key Lab of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Youmin Rong
- State Key Lab of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yu Huang
- State Key Lab of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Congyi Wu
- State Key Lab of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
- Guangdong Provincial Key Laboratory of Digital Manufacturing Equipment, Guangdong HUST Industrial Technology Research Institute, Dongguan 523808, China
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4
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Nacre-inspired underwater superoleophobic films with high transparency and mechanical robustness. Nat Protoc 2022; 17:2647-2667. [PMID: 35970874 DOI: 10.1038/s41596-022-00725-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 05/20/2022] [Indexed: 11/08/2022]
Abstract
Underwater superoleophobic materials have attracted increasing attention because of their remarkable potential applications, especially antifouling, self-cleaning and oil-water separation. A limitation of most superoleophobic materials is that they are non-transparent and have limited mechanical stability underwater. Here, we report a protocol for preparing a transparent and robust superoleophobic film that can be used underwater. It is formed by a hydrogel layer prepared by the superspreading of chitosan solution on a superhydrophilic substrate and biomimetic mineralization of this layer. In contrast to conventional hydrogel-based materials, this film exhibits significantly improved mechanical properties because of the combination of high-energy, ordered, inorganic aragonite (one crystalline polymorph of calcium carbonate) and homogeneous external hierarchical micro/nano structures, leading to robust underwater superoleophobicity and ultralow oil adhesion. Moreover, the mineralized film is suitable for neutral and alkaline environments and for containing organic solvent underwater and can be coated on different transparent materials, which has promising applications in underwater optics, miniature reactors and microfluidic devices. In this protocol, the time for the whole biomimetic mineralization process is only ~6 h, which is significantly shorter than that of traditional methods, such as gas diffusion and the Kitano method. The protocol can be completed in ~2 weeks and is suitable for researchers with intermediate expertise in organic chemistry and inorganic chemistry.
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5
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Yong J, Yang Q, Hou X, Chen F. Emerging Separation Applications of Surface Superwettability. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:688. [PMID: 35215017 PMCID: PMC8878479 DOI: 10.3390/nano12040688] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 02/13/2022] [Accepted: 02/15/2022] [Indexed: 11/17/2022]
Abstract
Human beings are facing severe global environmental problems and sustainable development problems. Effective separation technology plays an essential role in solving these challenges. In the past decades, superwettability (e.g., superhydrophobicity and underwater superoleophobicity) has succeeded in achieving oil/water separation. The mixture of oil and water is just the tip of the iceberg of the mixtures that need to be separated, so the wettability-based separation strategy should be extended to treat other kinds of liquid/liquid or liquid/gas mixtures. This review aims at generalizing the approach of the well-developed oil/water separation to separate various multiphase mixtures based on the surface superwettability. Superhydrophobic and even superoleophobic surface microstructures have liquid-repellent properties, making different liquids keep away from them. Inspired by the process of oil/water separation, liquid polymers can be separated from water by using underwater superpolymphobic materials. Meanwhile, the underwater superaerophobic and superaerophilic porous materials are successfully used to collect or remove gas bubbles in a liquid, thus achieving liquid/gas separation. We believe that the diversified wettability-based separation methods can be potentially applied in industrial manufacture, energy use, environmental protection, agricultural production, and so on.
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Affiliation(s)
- Jiale Yong
- State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (J.Y.); (X.H.)
| | - Qing Yang
- School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China;
| | - Xun Hou
- State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (J.Y.); (X.H.)
| | - Feng Chen
- State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (J.Y.); (X.H.)
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6
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Liu F, Du H, Zhao X, Wang X, Wang C, Liu Z, Wang H. Ultrafast Fabrication of a Robust Superwetting Coating. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02814] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fatang Liu
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
- School of Chemical Engineering and Technology, and State Key Laboratory for Chemical Engineering, Tianjin University, Tianjin 300350, P. R. China
| | - Hongzhong Du
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
| | - Xingjian Zhao
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
| | - Xinran Wang
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
| | - Chijia Wang
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
| | - Zhanjian Liu
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
| | - Huaiyuan Wang
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
- School of Chemical Engineering and Technology, and State Key Laboratory for Chemical Engineering, Tianjin University, Tianjin 300350, P. R. China
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7
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Lee HJ, Choi WS. 2D and 3D Bulk Materials for Environmental Remediation: Air Filtration and Oil/Water Separation. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E5714. [PMID: 33333822 PMCID: PMC7765286 DOI: 10.3390/ma13245714] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/02/2020] [Accepted: 12/09/2020] [Indexed: 01/17/2023]
Abstract
Air and water pollution pose an enormous threat to human health and ecosystems. In particular, particulate matter (PM) and oily wastewater can cause serious environmental and health concerns. Thus, controlling PM and oily wastewater has been a great challenge. Various techniques have been reported to effectively remove PM particles and purify oily wastewater. In this article, we provide a review of the recent advancements in air filtration and oil/water separation using two- and three-dimensional (2D and 3D) bulk materials. Our review covers the advantages, characteristics, limitations, and challenges of air filters and oil/water separators using 2D and 3D bulk materials. In each section, we present representative works in detail and describe the concepts, backgrounds, employed materials, fabrication methods, and characteristics of 2D and 3D bulk material-based air filters and oil/water separators. Finally, the challenges, technical problems, and future research directions are briefly discussed for each section.
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Affiliation(s)
- Ha-Jin Lee
- Western Seoul Center, Korea Basic Science Institute, 150 Bugahyun-ro, Seoudaemun-gu, Seoul 120-140, Korea;
| | - Won San Choi
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseodaero, Yuseong-gu, Daejeon 305-719, Korea
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8
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Yong J, Yang Q, Hou X, Chen F. Relationship and Interconversion Between Superhydrophilicity, Underwater Superoleophilicity, Underwater Superaerophilicity, Superhydrophobicity, Underwater Superoleophobicity, and Underwater Superaerophobicity: A Mini-Review. Front Chem 2020; 8:828. [PMID: 33134266 PMCID: PMC7511633 DOI: 10.3389/fchem.2020.00828] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/05/2020] [Indexed: 11/13/2022] Open
Abstract
Superwetting surfaces have received increasing attention because of their rich practical applications. Although various superwettabilities are independently achieved, the relationship between those superwettabilities is still not well-clarified. In this mini-review, we show that superhydrophilicity, underwater superoleophilicity, underwater superaerophilicity, superhydrophobicity, underwater superoleophobicity, and underwater superaerophobicity can be obtained on a same structured surface by the combination of hierarchical surface microstructures and proper chemistry. The relationship and interconversion between the above-mentioned different superwettabilities are also well-discussed. We believe that the current discussion and clarification of the relationship and interconversion between different superwettabilities has important significance in the design, fabrication, and applications of various superwetting materials.
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Affiliation(s)
- Jiale Yong
- State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Qing Yang
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Xun Hou
- State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Feng Chen
- State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an, China
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9
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Han DD, Cai Q, Chen ZD, Li JC, Mao JW, Lv P, Gao BR. Bioinspired Surfaces With Switchable Wettability. Front Chem 2020; 8:692. [PMID: 32903458 PMCID: PMC7434979 DOI: 10.3389/fchem.2020.00692] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/03/2020] [Indexed: 12/18/2022] Open
Abstract
The surface wettability of plants exhibits many unique advantages, which enhances the environmental adaptability of plants. In view of the rapid development of responsive materials, smart surfaces have been explored extensively to regulate surface wettability through external stimuli. Herein, we summarized recent advancements in bioinspired surfaces with switchable wettability. Typical bioinspired surfaces with switchable wettability and their emerging applications have been reviewed. In the end, we have discussed the remaining challenges and provided perspective on future development.
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Affiliation(s)
- Dong-Dong Han
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China
| | - Qing Cai
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Zhao-Di Chen
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China
| | - Ji-Chao Li
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China
| | - Jiang-Wei Mao
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China
| | - Pin Lv
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China
| | - Bing-Rong Gao
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China
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10
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Wang T, Zheng M, Wang L, Ji L, Wang S. Crucial role of an aerophobic substrate in bubble-propelled nanomotor aggregation. NANOTECHNOLOGY 2020; 31:355504. [PMID: 32403095 DOI: 10.1088/1361-6528/ab92c6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A bubble-propelled autonomous micro/nanomotor (MNM) is a device driven by a catalytic reaction that involves a solid-liquid-gas interface, which in turn is a key factor in achieving effective propulsion. Generally, modifying the liquid phase by adding surfactants can improve propulsion, but it has several disadvantages. It is reported that the rapid separation of bubbles will accelerate the movement of MNMs. Our focus is on methods to drive the motor efficiently by controlling the wettability of the solid phase, accelerating bubble separation without compromising the activity of the catalyst. In this study, different from most of the previous studies on moving MNMs, a static Pt loaded TiO2 nanowire aggregation was utilized as a nanomotor aggregation to investigate the wettability of the solid phase on bubble release. In comparison to an underwater aerophilic solid phase, in which bubbles are strongly held on the surface, the nanomotor's aggregation showed good aerophobicity. In particular, after UV illumination for 30 s, the nanomotor's aggregation became superaerophobic, which significantly promoted the release of O2 bubbles. The results of this study reveal how to modify the detachment behaviour of bubbles by controlling the aerophobic behaviour of solid surfaces of autonomous MNMs in an aqueous medium.
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Affiliation(s)
- Tao Wang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
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11
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Wang Y, Chen Z, Bian F, Shang L, Zhu K, Zhao Y. Advances of droplet-based microfluidics in drug discovery. Expert Opin Drug Discov 2020; 15:969-979. [DOI: 10.1080/17460441.2020.1758663] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Yuetong Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Zhuoyue Chen
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Feika Bian
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Luoran Shang
- Zhongshan-Xuhui Hospital, Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Kaixuan Zhu
- School of Electrical and Information Engineering, Suzhou Institute of Technology, Jiangsu University of Science and Technology, Zhangjiagang, China
| | - Yuanjin Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
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12
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Li M, Yang Q, Yong J, Liang J, Fang Y, Bian H, Hou X, Chen F. Underwater superoleophobic and anti-oil microlens array prepared by combing femtosecond laser wet etching and direct writing techniques. OPTICS EXPRESS 2019; 27:35903-35913. [PMID: 31878755 DOI: 10.1364/oe.27.035903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 11/11/2019] [Indexed: 06/10/2023]
Abstract
As an important micro-optical device, microlens array (MLA) also has broad applications in aqueous environment apart from atmosphere, such as bioscience research, ocean exploration, and microfluidic systems. However, the surface of the normal MLA is easily polluted by oil contaminations when the MLA is practically applied in a water medium, leading to the loss of its optical imaging ability. Herein, we fabricated a functional MLA with underwater anti-oil and self-cleaning abilities by combining the femtosecond laser wet etching (FLWE) and the femtosecond laser direct writing (FLDW) techniques. The as-prepared close-packed MLA is composed of 10000 single microlenses with the aperture diameter of 50 µm. The surface of each microlens is further textured with micro/nanoparticles. Clear and uniform images could be captured by using the resultant MLA in water, demonstrating great underwater imaging ability. The modulation transfer function value is larger than 0.6 at 55 lp/mm. In addition, the micro/nanostructures endow the as-fabricated MLA surface with underwater superoleophobicity and oil-repellent performance. Various oils can be repelled by the resultant MLA in water. Underwater 1,2-dichloroethane oil droplet on the textured MLA has a contact angle of 158.0 ± 0.5° and a sliding angle of 2.0 ± 0.2°. The underwater superoleophobic MLA also has good mechanical durability. The anti-oil and self-cleaning functions will broaden the applications of the MLA in ocean exploration, bioscience research, microfluidic system, and many underwater MLA-based systems.
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13
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Fu X, Xu S, Luo Y, Li A, Yang H. Simultaneous Photoreduction and Nitrogen Doping of Graphene Oxide for Supercapacitors by Direct Laser Writing. Chem Res Chin Univ 2019. [DOI: 10.1007/s40242-019-9060-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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14
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Shang B, Chen M, Wu L. NIR-Triggered Photothermal Responsive Coatings with Remote and Localized Tunable Underwater Oil Adhesion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901888. [PMID: 31192535 DOI: 10.1002/smll.201901888] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/17/2019] [Indexed: 06/09/2023]
Abstract
Tunable underwater oil adhesion is a critical issue in interfacial science and industrial applications. Although much progress has been made to date, development of novel smart coating materials that can selectively change the wetting property at different areas is considerably scarce. Here, a simple strategy is proposed to fabricate photothermal responsive coatings, which can change the oil adhesion behavior from low-adhesive rolling state to high-adhesive pinning state for a variety of oily liquids in a remote, local, and reversible manner. Owing to this unique controllability, the adhesion and no-adhesion of oil droplets on the coated surfaces can be easily manipulated by remote and local near-infrared radiation.
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Affiliation(s)
- Bin Shang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Min Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Limin Wu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
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15
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Yong J, Zhan Z, Singh SC, Chen F, Guo C. Femtosecond Laser-Structured Underwater "Superpolymphobic" Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:9318-9322. [PMID: 31264877 PMCID: PMC6639778 DOI: 10.1021/acs.langmuir.9b01063] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/14/2019] [Indexed: 05/29/2023]
Abstract
In this work, the surfaces that repel liquid polydimethylsiloxane (PDMS) droplets in water were created by femtosecond laser treatment. We define this superwetting phenomenon as underwater "superpolymphobicity". The resultant underwater superpolymphobic silicon surface shows a contact angle of 159 ± 1° and a sliding angle of 1.5 ± 0.5° to liquid PDMS droplets in water. This underwater superpolymphobicity can be achieved on a wide range of hydrophilic materials, including semiconductors, glass, and metals. The adhesion between the liquid polymer and a solid substrate is effectively prevented by the underwater superpolymphobic microstructures. The underwater superpolymphobicity will have a great significance in designing the adhesion between the polymer and a solid substrate, controlling the shape of the cured polymer materials, as well as nearly all the applications based on the polymer materials.
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Affiliation(s)
- Jiale Yong
- The
Institute of Optics, University of Rochester, Rochester, New York 14627, United States
- Shaanxi
Key Laboratory of Photonics Technology for Information, School of
Electronics & Information Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - Zhibing Zhan
- The
Institute of Optics, University of Rochester, Rochester, New York 14627, United States
| | - Subhash C. Singh
- The
Institute of Optics, University of Rochester, Rochester, New York 14627, United States
| | - Feng Chen
- Shaanxi
Key Laboratory of Photonics Technology for Information, School of
Electronics & Information Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - Chunlei Guo
- The
Institute of Optics, University of Rochester, Rochester, New York 14627, United States
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16
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Huang A, Kan CC, Lo SC, Chen LH, Su DY, Soesanto JF, Hsu CC, Tsai FY, Tung KL. Nanoarchitectured design of porous ZnO@copper membranes enabled by atomic-layer-deposition for oil/water separation. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.03.093] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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17
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Yong J, Yang Q, Guo C, Chen F, Hou X. A review of femtosecond laser-structured superhydrophobic or underwater superoleophobic porous surfaces/materials for efficient oil/water separation. RSC Adv 2019; 9:12470-12495. [PMID: 35515857 PMCID: PMC9063668 DOI: 10.1039/c8ra10673h] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 04/09/2019] [Indexed: 01/08/2023] Open
Abstract
Oil/water separation (OWS) technology has become an increasingly crucial tool to protect the environment and reduce the economic losses caused by the discharge of oily wastewater and oil spills. Recently, porous materials with superwettability have been applied in effective OWS and have achieved tremendous success. Herein, we review recent advancements of OWS utilizing femtosecond (fs) laser-structured superhydrophobic or underwater superoleophobic porous materials. We will review the enabling materials processing and treatment methods, their surface wettability, the separating methods and processes, and the separation mechanisms. Inspired by lotus leaves and fish scales, superhydrophobic and underwater superoleophobic properties are artificially achieved on substrate surfaces by fs laser processing. By using fs laser-structured superwetting porous materials, various oil/water mixtures (OWMs) are successfully separated through different separation methods. Presently, the research of fs laser-based OWS is still in its infancy. We will also discuss the current challenges and future prospects in this emerging field. It is expected that the advanced features of fs laser microfabrication will lead to exciting applications for OWS.
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Affiliation(s)
- Jiale Yong
- State Key Laboratory for Manufacturing System Engineering, Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronics & Information Engineering, Xi'an Jiaotong University Xi'an 710049 PR China
- The Institute of Optics, University of Rochester Rochester New York 14627 USA
| | - Qing Yang
- School of Mechanical Engineering, Xi'an Jiaotong University Xi'an 710049 PR China
| | - Chunlei Guo
- The Institute of Optics, University of Rochester Rochester New York 14627 USA
| | - Feng Chen
- State Key Laboratory for Manufacturing System Engineering, Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronics & Information Engineering, Xi'an Jiaotong University Xi'an 710049 PR China
| | - Xun Hou
- State Key Laboratory for Manufacturing System Engineering, Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronics & Information Engineering, Xi'an Jiaotong University Xi'an 710049 PR China
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18
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Yong J, Singh SC, Zhan Z, Chen F, Guo C. How To Obtain Six Different Superwettabilities on a Same Microstructured Pattern: Relationship between Various Superwettabilities in Different Solid/Liquid/Gas Systems. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:921-927. [PMID: 30609378 PMCID: PMC6354231 DOI: 10.1021/acs.langmuir.8b03726] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/04/2018] [Indexed: 05/24/2023]
Abstract
A range of different superwettabilities were obtained on femtosecond laser-structured Al surfaces. The formation mechanism of each superwetting state is discussed in this paper. It is revealed that the underwater oil droplet and bubble wettabilities of a solid surface have a close relationship with its water wettability. The laser-induced hierarchical microstructures showed superhydrophilicity in air but showed superoleophobicity/superaerophobicity after immersion in water. When such microstructures were further modified with a low-surface-energy monolayer, the wettability of the resultant surface would turn to superhydrophobicity with ultralow water adhesion in air and superoleophilicity/superaerophilicity in water. The understanding of the relationship among the above-mentioned six different superwettabilities is highly important in the design of various superwetting microstructures, transforming the structures from one superwetting state to another state and better using the artificial superwetting materials.
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Affiliation(s)
- Jiale Yong
- The
Institute of Optics, University of Rochester, Rochester, New York 14627, United States
- Shaanxi
Key Laboratory of Photonics Technology for Information, School of
Electronics & Information Engineering, Xi’an Jiaotong University, Xi’an, 710049, People’s Republic of China
| | - Subhash C. Singh
- The
Institute of Optics, University of Rochester, Rochester, New York 14627, United States
| | - Zhibing Zhan
- The
Institute of Optics, University of Rochester, Rochester, New York 14627, United States
| | - Feng Chen
- Shaanxi
Key Laboratory of Photonics Technology for Information, School of
Electronics & Information Engineering, Xi’an Jiaotong University, Xi’an, 710049, People’s Republic of China
| | - Chunlei Guo
- The
Institute of Optics, University of Rochester, Rochester, New York 14627, United States
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19
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Sun Y, Guo Z. Recent advances of bioinspired functional materials with specific wettability: from nature and beyond nature. NANOSCALE HORIZONS 2019; 4:52-76. [PMID: 32254145 DOI: 10.1039/c8nh00223a] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Through 3.7 billion years of evolution and natural selection, plants and animals in nature have ingeniously fulfilled a broad range of fascinating functions to achieve optimized performance in responding and adapting to changes in the process of interacting with complex natural environments. It is clear that the hierarchically organized micro/nanostructures of the surfaces of living organisms decisively manage fascinating and amazing functions, regardless of the chemical components of their building blocks. This conclusion now allows us to elucidate the underlying mechanisms whereby these hierarchical structures have a great impact on the properties of the bulk material. In this review, we mainly focus on advances over the last three years in bioinspired multiscale functional materials with specific wettability. Starting from selected naturally occurring surfaces, manmade bioinspired surfaces with specific wettability are introduced, with an emphasis on the cooperation between structural characteristics and macroscopic properties, including lotus leaf-inspired superhydrophobic surfaces, fish scale-inspired superhydrophilic/underwater superoleophobic surfaces, springtail-inspired superoleophobic surfaces, and Nepenthes (pitcher plant)-inspired slippery liquid-infused porous surfaces (SLIPSs), as well as other multifunctional surfaces that combine specific wettability with mechanical properties, optical properties and the unidirectional transport of liquid droplets. Afterwards, various top-down and bottom-up fabrication techniques are presented, as well as emerging cutting-edge applications. Finally, our personal perspectives and conclusions with regard to the transfer of micro- and nanostructures to engineered materials are provided.
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Affiliation(s)
- Yihan Sun
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China.
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20
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Ai J, Guo Z. Biomimetic polymeric superamphiphobic surfaces: their fabrication and applications. Chem Commun (Camb) 2019; 55:10820-10843. [DOI: 10.1039/c9cc03813b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In this review, we summarize recent developments in polymeric superamphiphobic surfaces, including their design, fabrication, and potential applications.
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Affiliation(s)
- Jixin Ai
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- People's Republic of China
- State Key Laboratory of Solid Lubrication
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- People's Republic of China
- State Key Laboratory of Solid Lubrication
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21
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Numerical simulation and experimental study of liquid–liquid flow dispersion in conical spiral pipes. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Yang X, Breedveld V, Choi WT, Liu X, Song J, Hess DW. Underwater Curvature-Driven Transport between Oil Droplets on Patterned Substrates. ACS APPLIED MATERIALS & INTERFACES 2018; 10:15258-15269. [PMID: 29630334 DOI: 10.1021/acsami.8b02413] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Roughness contrast patterns were generated on copper surfaces by a simple one-step site-selective oxidation process using a felt-tipped ink pen masking method. The patterned surface exhibited strong underwater oil wettability contrast which allows oil droplet confinement. Oil droplets placed on two patterned smooth dots (reservoirs) connected by a patterned smooth channel will spontaneously exchange liquid as a result of Laplace pressure differences until their shapes have reached equilibrium. In our experiments, residual solubility of the oil in water was overcome by using saturated oil-in-water solutions as the aqueous medium. In the saturated solution, the dependence of pattern geometry and oil viscosity on transported volume and the flow rate in the underwater oil transport process was investigated for dichloromethane and hexadecane. Experimental results were in good agreement with a simple model for Laplace pressure-driven flow. Depending on droplet curvatures, oil can be transported from large to small reservoirs or vice versa. The model predictions enable the design of reservoir and channel dimensions to control liquid transport in the water-solid surface-oil system. The patterning technique was extended to more complex patterns with multiple reservoirs for smart oil separation and mixing processes. The concepts demonstrated in this study can be employed to seed droplet arrays with specific initial drop volumes and achieve subsequent droplet mixing at controlled flow rates for potential lab-on-a-chip applications ranging from oil-droplet-based miniature reactors and sensors to high-throughput assays.
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Affiliation(s)
- Xiaolong Yang
- Key Laboratory for Precision and Non-Traditional Machining Technology of the Ministry of Education , Dalian University of Technology , Dalian 116023 , People's Republic of China
- School of Chemical and Biomolecular Engineering , Georgia Institute of Technology , 311 Ferst Drive NW , Atlanta , Georgia 30332 , United States
| | - Victor Breedveld
- School of Chemical and Biomolecular Engineering , Georgia Institute of Technology , 311 Ferst Drive NW , Atlanta , Georgia 30332 , United States
| | - Won Tae Choi
- School of Materials Science and Engineering , Georgia Institute of Technology , 500 10th Street, Northwest , Atlanta , Georgia 30332 , United States
| | - Xin Liu
- Key Laboratory for Precision and Non-Traditional Machining Technology of the Ministry of Education , Dalian University of Technology , Dalian 116023 , People's Republic of China
| | - Jinlong Song
- Key Laboratory for Precision and Non-Traditional Machining Technology of the Ministry of Education , Dalian University of Technology , Dalian 116023 , People's Republic of China
| | - Dennis W Hess
- School of Chemical and Biomolecular Engineering , Georgia Institute of Technology , 311 Ferst Drive NW , Atlanta , Georgia 30332 , United States
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23
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Barman J, Majumder SK, Roy PK, Khare K. Tunable superoleophobicity via harnessing the surface chemistry of UV responsive titania coatings. RSC Adv 2018; 8:13253-13258. [PMID: 35542509 PMCID: PMC9079761 DOI: 10.1039/c8ra01458b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 04/03/2018] [Indexed: 01/30/2023] Open
Abstract
Superoleophobic surfaces exhibiting tunable wettability are prepared by the combination of simple spray coating of Ultra Violet (UV) responsive titania nanoparticles and a low surface energy coating of a self-assembled monolayer (SAM) of 1H,1H,2H,2H-perflurodecyltrichlorosilane (PFDTS). Spray coating creates random micron-sized roughness with reentrant geometry, a necessary requirement for the superoleophobic surface, and a porous network at the nanometer size level, confirmed by the field emission scanning electron microscope (FE-SEM) images. By employing the rough surface and a low surface energy monolayer, the substrates possess superhydrophobicity with a water (γ = 72 mN m-1) contact angle of 163° and superoleophobicity with a decane (γ = 23 mN m-1) contact angle of 144°. Wettability of these surfaces is completely reversed to the superoleophilic state upon 6 h of UV irradiation. A quantitative X-ray photoelectron spectroscopy (XPS) analysis has confirmed the mechanism of decomposition of PFDTS molecules on the superoleophilic surfaces via interaction with the defect Ti3+ states of titania upon UV exposure. Furthermore, the superoleophobicity is restored to complete the transition cycle by changing the surface chemistry of the UV exposed surface via annealing and regrafting of the PFDTS monolayer.
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Affiliation(s)
- Jitesh Barman
- Electronic Paper Display Institute, South China Normal University, Higher Education Mega Center Guangzhou-510006 P. R. China
- Department of Physics, Indian Institute of Technology Kanpur Kanpur India-208016
| | - Sumit Kumar Majumder
- Department of Physics, Indian Institute of Technology Kanpur Kanpur India-208016
| | - Pritam Kumar Roy
- Department of Physics, Indian Institute of Technology Kanpur Kanpur India-208016
| | - Krishnacharya Khare
- Department of Physics, Indian Institute of Technology Kanpur Kanpur India-208016
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24
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Han Z, Feng X, Guo Z, Niu S, Ren L. Flourishing Bioinspired Antifogging Materials with Superwettability: Progresses and Challenges. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704652. [PMID: 29441617 DOI: 10.1002/adma.201704652] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/05/2017] [Indexed: 05/20/2023]
Abstract
Antifogging (AF) structure materials found in nature have great potential for enabling novel and emerging products and technologies to facilitate the daily life of human societies, attracting enormous research interests owing to their potential applications in display devices, traffics, agricultural greenhouse, food packaging, solar products, and other fields. The outstanding performance of biological AF surfaces encourages the rapid development and wide application of new AF materials. In fact, AF properties are inextricably associated with their surface superwettability. Generally, the superwettability of AF materials depends on a combination of their surface geometrical structures and surface chemical compositions. To explore their general design principles, recent progresses in the investigation of bioinspired AF materials are summarized herein. Recent developments of the mechanism, fabrication, and applications of bioinspired AF materials with superwettability are also a focus. This includes information on constructing superwetting AF materials based on designing the topographical structure and regulating the surface chemical composition. Finally, the remaining challenges and promising breakthroughs in this field are also briefly discussed.
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Affiliation(s)
- Zhiwu Han
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun, 130022, Jilin, P. R. China
| | - Xiaoming Feng
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun, 130022, Jilin, P. R. China
| | - Zhiguang Guo
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun, 130022, Jilin, P. R. China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Shichao Niu
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun, 130022, Jilin, P. R. China
| | - Luquan Ren
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun, 130022, Jilin, P. R. China
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25
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Yong J, Chen F, Huo J, Fang Y, Yang Q, Bian H, Li W, Wei Y, Dai Y, Hou X. Green, Biodegradable, Underwater Superoleophobic Wood Sheet for Efficient Oil/Water Separation. ACS OMEGA 2018; 3:1395-1402. [PMID: 31458468 PMCID: PMC6641444 DOI: 10.1021/acsomega.7b02064] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 01/22/2018] [Indexed: 05/28/2023]
Abstract
Superwettable (by water or oil) materials have been used in oil/water separation to cope with the growing oily industrial sewage discharge and oil spill accidents. The artificial superwetting materials for oil/water separation that have been previously reported are expensive, and using them usually causes secondary pollution, so practical, large-scale uses of those materials are limited. Here, we find that wood sheet shows underwater superoleophobicity and low oil adhesion in water, resulting from its strong capacity of absorbing water. A through-microhole array was created on the wood sheet surface by a simple mechanical drilling process. The prewetted porous sheet had great ability to separate the mixtures of water and oil with high separation efficiency. Wood is a low cost, green, and natural eco-friendly material; therefore, we believe that such a simple, low-cost, efficient, and green route of large-scale oil/water separation has great potential to practically solve the pollution problems caused by oil spill and oily industrial wastewater.
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Affiliation(s)
- Jiale Yong
- State Key Laboratory
for Manufacturing System Engineering and Key
Laboratory of Photonics Technology for Information of Shaanxi Province,
School of Electronics & Information Engineering,
and School of Mechanical
Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - Feng Chen
- State Key Laboratory
for Manufacturing System Engineering and Key
Laboratory of Photonics Technology for Information of Shaanxi Province,
School of Electronics & Information Engineering,
and School of Mechanical
Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - Jinglan Huo
- State Key Laboratory
for Manufacturing System Engineering and Key
Laboratory of Photonics Technology for Information of Shaanxi Province,
School of Electronics & Information Engineering,
and School of Mechanical
Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - Yao Fang
- State Key Laboratory
for Manufacturing System Engineering and Key
Laboratory of Photonics Technology for Information of Shaanxi Province,
School of Electronics & Information Engineering,
and School of Mechanical
Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - Qing Yang
- State Key Laboratory
for Manufacturing System Engineering and Key
Laboratory of Photonics Technology for Information of Shaanxi Province,
School of Electronics & Information Engineering,
and School of Mechanical
Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - Hao Bian
- State Key Laboratory
for Manufacturing System Engineering and Key
Laboratory of Photonics Technology for Information of Shaanxi Province,
School of Electronics & Information Engineering,
and School of Mechanical
Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - Wentao Li
- State Key Laboratory
for Manufacturing System Engineering and Key
Laboratory of Photonics Technology for Information of Shaanxi Province,
School of Electronics & Information Engineering,
and School of Mechanical
Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - Yang Wei
- State Key Laboratory
for Manufacturing System Engineering and Key
Laboratory of Photonics Technology for Information of Shaanxi Province,
School of Electronics & Information Engineering,
and School of Mechanical
Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - Yanzhu Dai
- State Key Laboratory
for Manufacturing System Engineering and Key
Laboratory of Photonics Technology for Information of Shaanxi Province,
School of Electronics & Information Engineering,
and School of Mechanical
Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - Xun Hou
- State Key Laboratory
for Manufacturing System Engineering and Key
Laboratory of Photonics Technology for Information of Shaanxi Province,
School of Electronics & Information Engineering,
and School of Mechanical
Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China
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26
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Yong J, Chen F, Huo J, Fang Y, Yang Q, Zhang J, Hou X. Femtosecond laser induced underwater superaerophilic and superaerophobic PDMS sheets with through microholes for selective passage of air bubbles and further collection of underwater gas. NANOSCALE 2018; 10:3688-3696. [PMID: 29340400 DOI: 10.1039/c7nr06920k] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Controlling underwater bubble behavior on a solid surface is of great research significance, particularly in extreme cases. However, the realization of artificial underwater superaerophobic or superaerophilic surfaces is still a challenge. Herein, a micro/nanoscale hierarchical rough structure was formed on polydimethylsiloxane (PDMS) surface by one-step femtosecond laser ablation. The as-prepared surface showed superhydrophobicity in air and superaerophilicity in water. Interestingly, the wettability of such a PDMS surface could be easily switched to in-air superhydrophilicity and underwater superaerophobicity once it was further irradiated by oxygen plasma because the surface chemistry changed. The original femtosecond laser-structured underwater superaerophilic PDMS surface could absorb/capture bubbles, while the plasma-treated underwater superaerophobic surface had excellent anti-bubble ability in water. A rough through-microhole-array PDMS sheet was prepared by a mechanical drilling process and subsequent femtosecond laser ablation. The sheet could selectively allow bubbles to pass, that is, the porous underwater superaerophilic sheet allowed bubbles to pass through, while the porous underwater superaerophobic sheet was able to intercept bubbles in a water medium. Using the porous underwater superaerophilic PDMS sheet as the core component, a device that has great ability of collecting underwater bubbles/gas was also designed.
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Affiliation(s)
- Jiale Yong
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, PR China.
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27
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Zhou H, Wang H, Yang W, Niu H, Wei X, Fu S, Liu S, Shao H, Lin T. Durable superoleophobic–superhydrophilic fabrics with high anti-oil-fouling property. RSC Adv 2018; 8:26939-26947. [PMID: 35541050 PMCID: PMC9083304 DOI: 10.1039/c8ra04645j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 07/23/2018] [Indexed: 01/05/2023] Open
Abstract
Although a number of methods have been reported for the preparation of superoleophobic–superhydrophobic surfaces, a challenge still remains in preparing a surface showing simultaneous superoleophobicity and superhydrophilicity. Herein, we demonstrate a novel strategy for preparing a simultaneously superhydrophilic–superoleophobic surface on cotton fabrics. A wet chemical coating method was employed to apply an oligomer which consists of a fluorinated alkyl and a PEG-phosphate hydrophilic moiety, silica nanoparticles and fluoroalkyl silane, onto fabric substrates. The treated fabrics exhibited both superoleophobicity and superhydrophilicity with a contact angle over 150° for oil fluids (surface tension > 27 mN m−1) but 0° for water. Water can spread into the fabric matrix within 2 seconds. The superhydrophilic–superoleophobic fabric had excellent superoleophobicity no matter whether it was at the dry state in air, pre-wetted with water, or in underwater conditions. When being contaminated forcedly with oil or oil-free dirt, the fabric can be easily cleaned up with water without using any detergent and chemical agent. Superoleophobic–superhydrophilic surfaces may provide an alternative and feasible way for anti-fouling applications. Although a number of methods have been reported for the preparation of superoleophobic–superhydrophobic surfaces, a challenge still remains in preparing a surface showing simultaneous superoleophobicity and superhydrophilicity.![]()
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Affiliation(s)
- Hua Zhou
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
| | - Hongxia Wang
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
| | - Weidong Yang
- Future Manufacturing Flagship
- CSIRO
- Clayton South
- Australia
| | - Haitao Niu
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
| | - Xin Wei
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
| | - Sida Fu
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
| | - Shuai Liu
- School of Mechanical and Electric Engineering
- Soochow University
- China
| | - Hao Shao
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
| | - Tong Lin
- Institute for Frontier Materials
- Deakin University
- Geelong
- Australia
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28
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Pan Z, Cheng F, Zhao B. Bio-Inspired Polymeric Structures with Special Wettability and Their Applications: An Overview. Polymers (Basel) 2017; 9:E725. [PMID: 30966026 PMCID: PMC6418807 DOI: 10.3390/polym9120725] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/08/2017] [Accepted: 12/14/2017] [Indexed: 12/15/2022] Open
Abstract
It is not unusual for humans to be inspired by natural phenomena to develop new advanced materials; such materials are called bio-inspired materials. Interest in bio-inspired polymeric superhydrophilic, superhydrophobic, and superoleophobic materials has substantially increased over the last few decades, as has improvement in the related technologies. This review reports the latest developments in bio-inspired polymeric structures with desired wettability that have occurred by mimicking the structures of lotus leaf, rose petals, and the wings and shells of various creatures. The intrinsic role of surface chemistry and structure on delivering superhydrophilicity, superhydrophobicity, and superoleophobicity has been extensively explored. Typical polymers, commonly used structures, and techniques involved in developing bio-inspired surfaces with desired wettability are discussed. Additionally, the latest applications of bio-inspired structures with desired wettability in human activities are also introduced.
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Affiliation(s)
- Zihe Pan
- Institute of Resources and Environmental Engineering, Shanxi University, 92 Wucheng Road, Xiaodian District, Taiyuan 030006, Shanxi, China.
- Shanxi Collaborative Innovation Center of High Value-Added Utilization of Coal-Related Wastes, Taiyuan 030006, Shanxi, China.
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
| | - Fangqin Cheng
- Institute of Resources and Environmental Engineering, Shanxi University, 92 Wucheng Road, Xiaodian District, Taiyuan 030006, Shanxi, China.
- Shanxi Collaborative Innovation Center of High Value-Added Utilization of Coal-Related Wastes, Taiyuan 030006, Shanxi, China.
| | - Boxin Zhao
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
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29
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Yang X, Liu X, Hess DW, Breedveld V. Underwater Oil Droplet Splitting on a Patterned Template. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:13522-13529. [PMID: 29120647 DOI: 10.1021/acs.langmuir.7b03604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Underwater oil droplets stretched and pinned by dual-dot oleophilic patterns on a superoleophobic substrate have been split into two nearly equal-volume daughter droplets using an underwater superoleophobic blade at substantially lower cutting speeds than reported in previous studies. A "liquid exchange model" based on Laplace pressure-driven liquid transport has been proposed to explain the mechanism of the underwater droplet split process. The dependence of droplet geometrical shape (curvature) and liquid properties (surface tension, viscosity) on the critical cutting speed that allows equal-volume split was investigated. Results demonstrate that critical cutting speed increases with increased curvature and surface tension of the split droplet, and decreases with increased droplet viscosity, which agrees with the proposed model. The ability to reproducibly split a single bulk oil droplet into daughter droplets with nearly equal volume facilitates the development of new functions for underwater microreactors.
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Affiliation(s)
- Xiaolong Yang
- Key Laboratory for Precision and Non-Traditional Machining Technology of the Ministry of Education, Dalian University of Technology , Dalian 116023, People's Republic of China
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - Xin Liu
- Key Laboratory for Precision and Non-Traditional Machining Technology of the Ministry of Education, Dalian University of Technology , Dalian 116023, People's Republic of China
| | - Dennis W Hess
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - Victor Breedveld
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive NW, Atlanta, Georgia 30332, United States
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30
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Yong J, Chen F, Fang Y, Huo J, Yang Q, Zhang J, Bian H, Hou X. Bioinspired Design of Underwater Superaerophobic and Superaerophilic Surfaces by Femtosecond Laser Ablation for Anti- or Capturing Bubbles. ACS APPLIED MATERIALS & INTERFACES 2017; 9:39863-39871. [PMID: 29067804 DOI: 10.1021/acsami.7b14819] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A micro-/nanoscale hierarchical rough structure inspired by the underwater superaerophobicity of fish scales was fabricated by ablation of a silicon surface by a femtosecond laser. The resultant silicon surface showed superhydrophilicity in air and became superaerophobic after immersion in water. Additionally, inspired by the underwater superaerophilicity of lotus leaves, we showed that the polydimethylsiloxane surface after femtosecond laser ablation exhibits superhydrophobicity in air and becomes superaerophilic in water. The underwater superaerophobic surface showed excellent antibubble ability, whereas the underwater superaerophilic surface could absorb and capture air bubbles in a water medium. The experimental results revealed that the in-air superhydrophilic surface generally shows superaerophobicity in water and that the in-air superhydrophobic surface generally shows underwater superaerophilicity. An underwater superaerophobic porous aluminum sheet with through microholes was prepared, and this sheet was able to intercept underwater bubbles and further remove bubbles from water. In contrast, the underwater superaerophilic porous polytetrafluoroethylene sheet could allow the bubbles to pass through the sheet. We believe that these results are highly significant for providing guidance to researchers and engineers for obtaining excellent control of bubbles' behavior on a solid surface in a water medium.
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Affiliation(s)
- Jiale Yong
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, and ‡School of Mechanical Engineering, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Feng Chen
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, and ‡School of Mechanical Engineering, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Yao Fang
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, and ‡School of Mechanical Engineering, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Jinglan Huo
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, and ‡School of Mechanical Engineering, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Qing Yang
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, and ‡School of Mechanical Engineering, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Jingzhou Zhang
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, and ‡School of Mechanical Engineering, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Hao Bian
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, and ‡School of Mechanical Engineering, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Xun Hou
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, and ‡School of Mechanical Engineering, Xi'an Jiaotong University , Xi'an 710049, PR China
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Abstract
Droplet microfluidics generates and manipulates discrete droplets through immiscible multiphase flows inside microchannels. Due to its remarkable advantages, droplet microfluidics bears significant value in an extremely wide range of area. In this review, we provide a comprehensive and in-depth insight into droplet microfluidics, covering fundamental research from microfluidic chip fabrication and droplet generation to the applications of droplets in bio(chemical) analysis and materials generation. The purpose of this review is to convey the fundamentals of droplet microfluidics, a critical analysis on its current status and challenges, and opinions on its future development. We believe this review will promote communications among biology, chemistry, physics, and materials science.
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Affiliation(s)
- Luoran Shang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Yao Cheng
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Yuanjin Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
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32
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Huo J, Yang Q, Chen F, Yong J, Fang Y, Zhang J, Liu L, Hou X. Underwater Transparent Miniature "Mechanical Hand" Based on Femtosecond Laser-Induced Controllable Oil-Adhesive Patterned Glass for Oil Droplet Manipulation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:3659-3665. [PMID: 28316243 DOI: 10.1021/acs.langmuir.7b00393] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Development of underwater superoleophobic surfaces has captured the imagination of researchers because of their applications; especially, oil manipulation based on such surfaces has attracted much attention. Here, we show a simple and effective way to fabricate an underwater transparent miniature "mechanical hand" based on controllable oil-adhesive patterned glass using a femtosecond laser. The underwater oil-adhesive force of the patterned glasses that compose the "mechanical hand" device can be controlled from ultralow to ultrahigh by adjusting the ratio of the untreated flat glass area to the laser-ablated rough area. These surfaces also showed favorable transparency in water. Various oils such as chloroform, hexadecane, n-dodecane, decane, liquid paraffin, and petroleum ether were tested, and their repellency against the as-prepared surfaces in water medium was confirmed. Moreover, the "mechanical hand" was used to implement oil transportation, fusion, and rapid capture, which can be applied in the construction of microfluidic devices, in situ detectors, and bioreactors.
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Affiliation(s)
- Jinglan Huo
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, ‡School of Mechanical Engineering, and §Department of Biological Science and Bioengineering, Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Qing Yang
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, ‡School of Mechanical Engineering, and §Department of Biological Science and Bioengineering, Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Feng Chen
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, ‡School of Mechanical Engineering, and §Department of Biological Science and Bioengineering, Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Jiale Yong
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, ‡School of Mechanical Engineering, and §Department of Biological Science and Bioengineering, Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Yao Fang
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, ‡School of Mechanical Engineering, and §Department of Biological Science and Bioengineering, Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Jingzhou Zhang
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, ‡School of Mechanical Engineering, and §Department of Biological Science and Bioengineering, Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Lin Liu
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, ‡School of Mechanical Engineering, and §Department of Biological Science and Bioengineering, Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, PR China
| | - Xun Hou
- State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, ‡School of Mechanical Engineering, and §Department of Biological Science and Bioengineering, Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, PR China
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33
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Jiang L, Tang Z, Clinton RM, Breedveld V, Hess DW. Two-Step Process To Create "Roll-Off" Superamphiphobic Paper Surfaces. ACS APPLIED MATERIALS & INTERFACES 2017; 9:9195-9203. [PMID: 28225585 DOI: 10.1021/acsami.7b00829] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Surface modification of cellulose-based paper, which displays roll-off properties for water and oils (surface tension ≥23.8 mN·m-1) and good repellency toward n-heptane (20.1 mN·m-1), is reported. Droplets of water, diiodomethane, motor oil, hexadecane, and decane all "bead up", i.e., exhibit high contact angles, and roll off the treated surface under the influence of gravity. Unlike widely used approaches that rely on the deposition of nanoparticles or electrospun nanofibers to create superamphiphobic surfaces, our method generates a hierarchical structure as an inherent property of the substrate and displays good adhesion between the film and substrate. The two-step combination of plasma etching and vapor deposition used in this study enables fine-tuning of the nanoscale roughness and thereby facilitates enhanced fundamental understanding of the effect of micro- and nanoscale roughness on the paper wetting properties. The surfaces maintain their "roll-off" properties after dynamic impact tests, demonstrating their mechanical robustness. Furthermore, the superamphiphobic paper has high gas permeability due to pore-volume enhancement by plasma etching but maintains the mechanical flexibility and strength of untreated paper, despite the presence of nanostructures. The unique combination of the chemical and physical properties of the resulting superamphiphobic paper is of practical interest for a range of applications such as breathable and disposable medical apparel, antifouling biomedical devices, antifingerprint paper, liquid packaging, microfluidic devices, and medical testing strips through a simple surface etching plus coating process.
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Affiliation(s)
- Lu Jiang
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive, Atlanta, Georgia 30332, United States
- Renewable Bioproducts Institute, Georgia Institute of Technology , 500 10th Street Northwest, Atlanta, Georgia 30318, United States
| | - Zhenguan Tang
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive, Atlanta, Georgia 30332, United States
- Renewable Bioproducts Institute, Georgia Institute of Technology , 500 10th Street Northwest, Atlanta, Georgia 30318, United States
| | - Rahmat M Clinton
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Victor Breedveld
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Dennis W Hess
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive, Atlanta, Georgia 30332, United States
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34
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Abstract
This review systematically summarizes the recent developments of superoleophobic surfaces, focusing on their design, fabrication, characteristics, functions, and important applications.
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Affiliation(s)
- Jiale Yong
- State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information
- School of Electronics & Information Engineering
- Xi’an Jiaotong University
- Xi’an
- P. R. China
| | - Feng Chen
- State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information
- School of Electronics & Information Engineering
- Xi’an Jiaotong University
- Xi’an
- P. R. China
| | - Qing Yang
- School of Mechanical Engineering
- Xi’an Jiaotong University
- Xi’an
- P. R. China
| | - Jinglan Huo
- State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information
- School of Electronics & Information Engineering
- Xi’an Jiaotong University
- Xi’an
- P. R. China
| | - Xun Hou
- State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information
- School of Electronics & Information Engineering
- Xi’an Jiaotong University
- Xi’an
- P. R. China
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35
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Li D, Wu A, Xu G, Lai H, Cheng Z, Liu Y. Regulating Underwater Superoleophobicity to Superoleophilicity on Hierarchical Structured Copper Substrates through Assembling n-Alkanoic Acids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:13493-13499. [PMID: 27935307 DOI: 10.1021/acs.langmuir.6b03771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this paper, we report a simple method based on assembling n-alkanoic acids on hierarchical structured copper toward preparing surfaces with tunable oil wetting performance in water. Surface wettability from superoleophobicity to superoleophilicity in water can be regulated through tuning the chain length of n-alkanoic acids. Importantly, even in strongly acid and basic water, such phenomena can still be observed. The cooperation between the hierarchical structures and the surface chemical composition variation is responsible for the controllability. Meanwhile, the tunable ability is universal and the controllability is suitable for various oils including silicon oil, n-hexane, and chloroform. Moreover, the method was also used on copper mesh substrates, and we reported the related application of selective oil/water separation. This paper provides a flexible strategy toward preparing surfaces with tunable oil wetting performances, which can also be suitable for other materials, and offers some fresh ideas in manipulating underwater oil wetting performances on surfaces.
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Affiliation(s)
- Defeng Li
- Collaborative Innovation Center of Biomass Energy and ‡College of Mechanical and Electrical Engineering, Henan Agricultural University , Zhengzhou 450002, Henan Province, China
- School of Chemical Engineering and Technology and ∥Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150001, P. R. China
| | - Ang Wu
- Collaborative Innovation Center of Biomass Energy and ‡College of Mechanical and Electrical Engineering, Henan Agricultural University , Zhengzhou 450002, Henan Province, China
- School of Chemical Engineering and Technology and ∥Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150001, P. R. China
| | - Guangyin Xu
- Collaborative Innovation Center of Biomass Energy and ‡College of Mechanical and Electrical Engineering, Henan Agricultural University , Zhengzhou 450002, Henan Province, China
- School of Chemical Engineering and Technology and ∥Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150001, P. R. China
| | - Hua Lai
- Collaborative Innovation Center of Biomass Energy and ‡College of Mechanical and Electrical Engineering, Henan Agricultural University , Zhengzhou 450002, Henan Province, China
- School of Chemical Engineering and Technology and ∥Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150001, P. R. China
| | - Zhongjun Cheng
- Collaborative Innovation Center of Biomass Energy and ‡College of Mechanical and Electrical Engineering, Henan Agricultural University , Zhengzhou 450002, Henan Province, China
- School of Chemical Engineering and Technology and ∥Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150001, P. R. China
| | - Yuyan Liu
- Collaborative Innovation Center of Biomass Energy and ‡College of Mechanical and Electrical Engineering, Henan Agricultural University , Zhengzhou 450002, Henan Province, China
- School of Chemical Engineering and Technology and ∥Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150001, P. R. China
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36
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Vüllers F, Gomard G, Preinfalk JB, Klampaftis E, Worgull M, Richards B, Hölscher H, Kavalenka MN. Bioinspired Superhydrophobic Highly Transmissive Films for Optical Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:6144-6152. [PMID: 27717174 DOI: 10.1002/smll.201601443] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/12/2016] [Indexed: 06/06/2023]
Abstract
Inspired by the transparent hair layer on water plants Salvinia and Pistia, superhydrophobic flexible thin films, applicable as transparent coatings for optoelectronic devices, are introduced. Thin polymeric nanofur films are fabricated using a highly scalable hot pulling technique, in which heated sandblasted steel plates are used to create a dense layer of nano- and microhairs surrounding microcavities on a polymer surface. The superhydrophobic nanofur surface exhibits water contact angles of 166 ± 6°, sliding angles below 6°, and is self-cleaning against various contaminants. Additionally, subjecting thin nanofur to argon plasma reverses its surface wettability to hydrophilic and underwater superoleophobic. Thin nanofur films are transparent and demonstrate reflection values of less than 4% for wavelengths ranging from 300 to 800 nm when attached to a polymer substrate. Moreover, used as translucent self-standing film, the nanofur exhibits transmission values above 85% and high forward scattering. The potential of thin nanofur films for extracting substrate modes from organic light emitting diodes is tested and a relative increase of the luminous efficacy of above 10% is observed. Finally, thin nanofur is optically coupled to a multicrystalline silicon solar cell, resulting in a relative gain of 5.8% in photogenerated current compared to a bare photovoltaic device.
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Affiliation(s)
- Felix Vüllers
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Guillaume Gomard
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Light Technology Institute (LTI), Karlsruhe Institute of Technology (KIT), Engesserstrasse 13, 76131, Karlsruhe, Germany
| | - Jan B Preinfalk
- Light Technology Institute (LTI), Karlsruhe Institute of Technology (KIT), Engesserstrasse 13, 76131, Karlsruhe, Germany
| | - Efthymios Klampaftis
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Matthias Worgull
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Bryce Richards
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Hendrik Hölscher
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Maryna N Kavalenka
- Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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37
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Hu Y, Wang Z, Weng Z, Yu M, Wang D. Bio-inspired hierarchical patterning of silicon by laser interference lithography. APPLIED OPTICS 2016; 55:3226-3232. [PMID: 27140092 DOI: 10.1364/ao.55.003226] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
This paper presents a facile approach for the rapid and maskless fabrication of hierarchical structures by multibeam laser interference. In the work, three- and four-beam laser interference lithographies were proposed to fabricate ordered multiscale surface structures instead of six or more beam interference with a complicated system setup. The pitch and shape of hierarchical structures can be controlled by adjusting the parameters of incident light. The experiment results have shown that the hierarchical anisotropy and isotropy surface structures can be fabricated by this method with the control of the parameters of each incident beam, which is in accordance with the theoretical analysis and computer simulations.
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38
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Xu Z, Zhao Y, Wang H, Zhou H, Qin C, Wang X, Lin T. Fluorine-Free Superhydrophobic Coatings with pH-induced Wettability Transition for Controllable Oil-Water Separation. ACS APPLIED MATERIALS & INTERFACES 2016; 8:5661-7. [PMID: 26837794 DOI: 10.1021/acsami.5b11720] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
We present a simple, environmentally friendly approach to fabricating superhydrophobic coatings with pH-induced wettability transition. The coatings are prepared from a mixture of silica nanoparticles and decanoic acid-modified TiO2. When the coating is applied on cotton fabric, the fabric turns superhydrophobic in air but superoleophilic in neutral aqueous environment. It is permeable to oil fluids but impermeable to water. However, when the coated fabric is placed in basic aqueous solution or ammonia vapor, it turns hydrophilic but underwater superoleophobic, thus allowing water to penetrate through but blocking oil. Therefore, such a unique, selective water/oil permeation feature makes the treated fabric have capability to separate either oil or water from a water-oil mixture. It may be useful for development of smart oil-water separators, microfluidic valves, and lab-on-a-chip devices.
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Affiliation(s)
- Zhiguang Xu
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| | - Yan Zhao
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| | - Hongxia Wang
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| | - Hua Zhou
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| | - Chuanxiang Qin
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Xungai Wang
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| | - Tong Lin
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
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39
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Liu H, Lei B, Jiang W, Li Y, Yin L, Chen B, Shi Y. Ultrasound-assisted recovery of free-standing high-aspect-ratio micropillars. RSC Adv 2016. [DOI: 10.1039/c5ra26898b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
High-aspect-ratio polymer micropillar arrays are widely employed in microfluidics and microdevices.
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Affiliation(s)
- Hongzhong Liu
- State Key Laboratory for Manufacturing Systems Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Biao Lei
- State Key Laboratory for Manufacturing Systems Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Weitao Jiang
- State Key Laboratory for Manufacturing Systems Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Yonghao Li
- State Key Laboratory for Manufacturing Systems Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Lei Yin
- State Key Laboratory for Manufacturing Systems Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Bangdao Chen
- State Key Laboratory for Manufacturing Systems Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Yongsheng Shi
- State Key Laboratory for Manufacturing Systems Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- China
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40
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Liu K, Su Z, Miao S, Ma G, Zhang S. Enzymatic waterborne polyurethane towards a robust and environmentally friendly anti-biofouling coating. RSC Adv 2016. [DOI: 10.1039/c6ra04583a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple, green, robust and efficient method has been developed for the preparation of an anti-biofouling coating by directly mixing antifouling enzymes with a castor oil-based waterborne polyurethane (WPU) dispersion.
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Affiliation(s)
- Kai Liu
- National Key Laboratory of Biochemical Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Zhiguo Su
- National Key Laboratory of Biochemical Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Shida Miao
- National Key Laboratory of Biochemical Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Guanghui Ma
- National Key Laboratory of Biochemical Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Songping Zhang
- National Key Laboratory of Biochemical Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
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41
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Yong J, Chen F, Yang Q, Hou X. Femtosecond laser controlled wettability of solid surfaces. SOFT MATTER 2015; 11:8897-8906. [PMID: 26415826 DOI: 10.1039/c5sm02153g] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Femtosecond laser microfabrication is emerging as a hot tool for controlling the wettability of solid surfaces. This paper introduces four typical aspects of femtosecond laser induced special wettability: superhydrophobicity, underwater superoleophobicity, anisotropic wettability, and smart wettability. The static properties are characterized by the contact angle measurement, while the dynamic features are investigated by the sliding behavior of a liquid droplet. Using different materials and machining methods results in different rough microstructures, patterns, and even chemistry on the solid substrates. So, various beautiful wettabilities can be realized because wettability is mainly dependent on the surface topography and chemical composition. The distinctions of the underlying formation mechanism of these wettabilities are also described in detail.
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Affiliation(s)
- Jiale Yong
- Key Laboratory of Photonics Technology for Information of Shaanxi Province & State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
| | - Feng Chen
- Key Laboratory of Photonics Technology for Information of Shaanxi Province & State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
| | - Qing Yang
- Key Laboratory of Photonics Technology for Information of Shaanxi Province & State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
| | - Xun Hou
- Key Laboratory of Photonics Technology for Information of Shaanxi Province & State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
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42
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Zhang E, Cheng Z, Lv T, Li L, Liu Y. The design of underwater superoleophobic Ni/NiO microstructures with tunable oil adhesion. NANOSCALE 2015; 7:19293-19299. [PMID: 26530908 DOI: 10.1039/c5nr05375g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Controlling oil adhesion in water is a fundamental issue in many practical applications for surfaces. Currently, almost all studies on underwater oil adhesion control are concentrated on regulating surface chemistry on polymer surfaces, and structure-dependent underwater oil adhesion is still rare, especially on inorganic materials. Herein, we report a series of underwater superoleophobic Ni/NiO surfaces with controlled oil adhesions by combining electro-deposition and heating techniques. The adhesive forces between an oil droplet and the surfaces can be adjusted from an extremely low (less than 1 μN) to a very high value (about 60 μN), and the tunable effect can be attributed to different wetting states that result from different microstructures on the surfaces. Moreover, the oil-adhesion controllability for different types of oils was also analyzed and the applications of the surface including oil droplet transportation and self-cleaning were discussed. The results reported herein provide a new feasible method for fabrication of underwater superoleophobic surfaces with controlled adhesion, and improve the understanding of the relationship between surface microstructures, adhesion, and the fabrication principle of tunable oil adhesive surfaces.
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Affiliation(s)
- Enshuang Zhang
- School of Chemical Engineering and Technology, Institute of Technology, Harbin, Heilongjiang 150001, P.R. China.
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Valipour Motlagh N, Khani R, Rahnama S. Super dewetting surfaces: Focusing on their design and fabrication methods. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.08.037] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Liang W, Zhu L, Li W, Yang X, Xu C, Liu H. Bioinspired Composite Coating with Extreme Underwater Superoleophobicity and Good Stability for Wax Prevention in the Petroleum Industry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:11058-11066. [PMID: 26375275 DOI: 10.1021/acs.langmuir.5b03234] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Wax deposition is a detrimental problem that happens during crude oil production and transportation, which greatly reduces transport efficiency and causes huge economic losses. To avoid wax deposition, a bioinspired composite coating with excellent wax prevention and anticorrosion properties is developed in this study. The prepared coating is composed of three films, including an electrodeposited Zn film for improving corrosion resistance, a phosphating film for constructing fish-scale morphology, and a silicon dioxide film modified by a simple spin-coating method for endowing the surface with superhydrophilicity. Good wax prevention performance has been investigated in a wax deposition test. The surface morphology, composition, wetting behaviors, and stability are systematically studied, and a wax prevention mechanism is proposed, which can be calculated from water film theory. This composite coating strategy which shows excellent properties in both wax prevention and stability is expected to be widely applied in the petroleum industry.
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Affiliation(s)
- Weitao Liang
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University , Beijing 100191, China
| | - Liqun Zhu
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University , Beijing 100191, China
| | - Weiping Li
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University , Beijing 100191, China
| | - Xin Yang
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University , Beijing 100191, China
| | - Chang Xu
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University , Beijing 100191, China
| | - Huicong Liu
- Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University , Beijing 100191, China
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45
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Liu YQ, Zhang YL, Fu XY, Sun HB. Bioinspired Underwater Superoleophobic Membrane Based on a Graphene Oxide Coated Wire Mesh for Efficient Oil/Water Separation. ACS APPLIED MATERIALS & INTERFACES 2015; 7:20930-6. [PMID: 26302148 DOI: 10.1021/acsami.5b06326] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Inspired from fish scales that exhibit unique underwater superoleophobicity because of the presence of micronanostructures and hydrophilic slime on their surface, we reported here the facile fabrication of underwater superoleophobic membranes by coating a layer of graphene oxide (GO) on commercially available wire meshes with tunable pore sizes. Using the wire mesh as a ready-made mask, GO-embellished mesh with open apertures (GO@mesh) could be readily fabricated after subsequent O2 plasma treatments from the back side. Interestingly, the congenital microstructures of the crossed microwires in combination with the abundant hydrophilic oxygen-containing groups of the GO layer endow the resultant GO@mesh with unique underwater superoleophobic properties. The antioil tests show that the underwater contact angles of various oils including both organic reagents (undissolved in water) and vegetable oil on GO@mesh exceed 150°, indicating the superoleophobic nature. In a representative experiment, a mixture of bean oil and water that imitates culinary sewage has been well separated with the help of our GO@mesh. GO-embellished wire meshes may find broad applications in sewage purification, especially for the treatment of oil contaminations.
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Affiliation(s)
- Yu-Qing Liu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, and ‡College of Physics, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Yong-Lai Zhang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, and ‡College of Physics, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Xiu-Yan Fu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, and ‡College of Physics, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Hong-Bo Sun
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, and ‡College of Physics, Jilin University , 2699 Qianjin Street, Changchun 130012, China
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Cheng Z, Liu H, Lai H, Du Y, Fu K, Li C, Yu J, Zhang N, Sun K. Regulating Underwater Oil Adhesion on Superoleophobic Copper Films through Assembling n-Alkanoic Acids. ACS APPLIED MATERIALS & INTERFACES 2015; 7:20410-20417. [PMID: 26307917 DOI: 10.1021/acsami.5b06374] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Controlling liquid adhesion on special wetting surface is significant in many practical applications. In this paper, an easy self-assembled monolayer technique was advanced to modify nanostructured copper substrates, and tunable adhesive underwater superoleophobic surfaces were prepared. The surface adhesion can be regulated by simply varying the chain length of the n-alkanoic acids, and the tunable adhesive properties can be ascribed to the combined action of surfaces nanostructures and related variation in surface chemistry. Meanwhile, the tunable ability is universal, and the oil-adhesion controllability is suitable to various oils including silicon oil, n-hexane, and chloroform. Finally, on the basis of the special tunable adhesive properties, some applications of our surfaces including droplet storage, transfer, mixing, and so on are also discussed. The paper offers a novel and simple method to prepare underwater superoleophobic surfaces with regulated adhesion, which can potentially be applied in numerous fields, for instance, biodetection, microreactors, and microfluidic devices.
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Affiliation(s)
- Zhongjun Cheng
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, ‡Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, and §Center for Analysis and Measurement, School of Material Science and Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150090, P. R. China
| | - Hongwei Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, ‡Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, and §Center for Analysis and Measurement, School of Material Science and Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150090, P. R. China
| | - Hua Lai
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, ‡Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, and §Center for Analysis and Measurement, School of Material Science and Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150090, P. R. China
| | - Ying Du
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, ‡Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, and §Center for Analysis and Measurement, School of Material Science and Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150090, P. R. China
| | - Kewei Fu
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, ‡Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, and §Center for Analysis and Measurement, School of Material Science and Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150090, P. R. China
| | - Chong Li
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, ‡Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, and §Center for Analysis and Measurement, School of Material Science and Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150090, P. R. China
| | - Jianxin Yu
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, ‡Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, and §Center for Analysis and Measurement, School of Material Science and Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150090, P. R. China
| | - Naiqing Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, ‡Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, and §Center for Analysis and Measurement, School of Material Science and Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150090, P. R. China
| | - Kening Sun
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, ‡Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, and §Center for Analysis and Measurement, School of Material Science and Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150090, P. R. China
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Teng C, Wang S, Lu X, Wang J, Ren G, Zhu Y, Jiang L. Stable underwater superoleophobic and low adhesive polypyrrole nanowire mesh in highly corrosive environments. SOFT MATTER 2015; 11:4290-4. [PMID: 25907429 DOI: 10.1039/c5sm00527b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Underwater superoleophobic materials with low adhesion have been widely researched owing to their self-cleaning and anti-corrosive properties. In this study, polypyrrole (PPy) nanowire meshes have been successfully fabricated by in situ electrochemical polymerization on stainless steel mesh substrates in the presence of phosphate buffered saline as both an electrolyte and a dopant. PPy nanowire meshes have high oil contact angles (above 150°) and low sliding angles (less than 10°), and they show underwater superoleophobicity with an excellent self-cleaning performance, not only in pure water, but also in highly corrosive aqueous solutions, including salt solutions, strong acids or basic solutions. PPy nanowire meshes presented here show promise for potential applications in fields such as oil-water separation and marine oil spill clean-up.
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Affiliation(s)
- Chao Teng
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China.
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48
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Underwater superoleophobicity of a robust rough titanium dioxide surface formed on titanium substrate by acid treatment. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2014.10.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Yao X, Ju J, Yang S, Wang J, Jiang L. Temperature-driven switching of water adhesion on organogel surface. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:1895-1900. [PMID: 24346858 DOI: 10.1002/adma.201304798] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 11/20/2013] [Indexed: 06/03/2023]
Abstract
Temperature-driven switching of water adhesion is realized on a novel n-paraffinswollen organogel by thermally controlling the transition of air/liquid/solid (ALS/ALLS) systems via the phasechange process of n-paraffin. The thermal control of both the water-drop sliding motion and the switching of the optical transparency shows potential applications in scientific research and daily life.
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Affiliation(s)
- Xi Yao
- Beijing National Laboratory for Molecular Science (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China; College of Chemistry, Jilin University, Changchun, 130012, P. R. China
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50
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Cheng Z, Lai H, Du Y, Fu K, Hou R, Li C, Zhang N, Sun K. pH-induced reversible wetting transition between the underwater superoleophilicity and superoleophobicity. ACS APPLIED MATERIALS & INTERFACES 2014; 6:636-41. [PMID: 24319986 DOI: 10.1021/am4047393] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Surfaces with controlled oil wettability in water have great potential for numerous underwater applications. In this work, we report a smart surface with pH-responsive oil wettability. The surface shows superoleophilicity in acidic water and superoleophobicity in basic water. Reversible transition between the two states can be achieved through alteration of the water pH. Such smart ability of the surface is due to the cooperation between the surface chemistry variation and hierarchical structures on the surface. Furthermore, we also extended this strategy to the copper mesh substrate and realized the selective oil/water separation on the as-prepared film. This paper reports a new surface with excellently controllable underwater oil wettability, and we believe such a surface has a lot of applications, for instance, microfluidic devices, bioadhesion, and antifouling materials.
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Affiliation(s)
- Zhongjun Cheng
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, and †Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin, Heilongjiang 150090, People's Republic of China
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