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Ionescu D, Kovaci M. Induced Wettability Switch in Thin Films of Conductive Polymer Coatings Exhibiting Hydrophobic/Hydrophilic Interactions. SENSORS (BASEL, SWITZERLAND) 2023; 23:6867. [PMID: 37571652 PMCID: PMC10422252 DOI: 10.3390/s23156867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/22/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023]
Abstract
The hydrophobic/hydrophilic character of some conductive polymer (CP) coatings can be switched in the function of the working conditions of these adaptive materials. We studied the influence of electrical stimuli and intrinsic physical characteristics (nature of the polymerizable core, dopants, the droplet dimension and physical properties, surface roughness, etc.) on the CP wettability. A simulation strategy was developed for determining the contact angle (CA) of a liquid droplet on a CP layer with roughness. The method was tested for new reported CP composites, but with new dopants. The results indicate that the influences on the material wettability are correlated, and in practice, modification of more than one parameter converges to a wanted behavior of the material. E.g., the CP porous film of poly(3-hexylthiophene) (P3HT) + [6,6]-phenyl-C61-butyricacid-methyl-ester (PCBM) changes its wettability at voltages of up to 26 V, but if doping ions are inserted and the roughness geometry is modified, the voltage decreases twice. Our multi-parametrical study points out that the polymer wettability type is driven by the voltage, but this effect is tuned differently by each internal parameter. The thin films' effect and the dopants (in-situ and ex-situ) significantly decrease the actuation voltage. We also illustrated that the wettability type does not change for specific sets of parameters.
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Affiliation(s)
- Daniela Ionescu
- Department of Telecommunications and Information Technologies, Faculty of Electronics, Telecommunications and Information Technologies, “Gh. Asachi” Technical University of Iasi, Carol I Blvd., No. 11, 700506 Iasi, Romania
| | - Maria Kovaci
- Department of Communications, Faculty of Electronics, Telecommunications and Information Technologies, “Politehnica” University of Timisoara, V. Pârvan Blvd., No. 2, 300223 Timisoara, Romania;
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2
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Vasnev VA, Markova GD, Istratov VV, Baranov OV. Hydrophilic Modified Siloxane Coatings. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422020099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Chen S, Yan S, Zhan S, Wei Q, Gao L, Li Z, Li W, Yu L, Xu T, Wang S, Zhang M. Study on the regulation of polythiophene whiskers by electric field induction and the anisotropy of the film surface. POLYM INT 2021. [DOI: 10.1002/pi.6277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shuang Chen
- School of Chemical Engineering Changchun University of Technology Changchun China
- Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Su Yan
- School of Chemical Engineering Changchun University of Technology Changchun China
- Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Siqi Zhan
- School of Chemical Engineering Changchun University of Technology Changchun China
- Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Qi Wei
- School of Chemical Engineering Changchun University of Technology Changchun China
- Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Lifeng Gao
- School of Chemical Engineering Changchun University of Technology Changchun China
- Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Zihan Li
- School of Chemical Engineering Changchun University of Technology Changchun China
- Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Wei Li
- School of Chemical Engineering Changchun University of Technology Changchun China
| | - Limin Yu
- School of Chemical Engineering Changchun University of Technology Changchun China
- Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Tiening Xu
- School of Chemical Engineering Changchun University of Technology Changchun China
- Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Shiwei Wang
- School of Chemical Engineering Changchun University of Technology Changchun China
- Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Mingyao Zhang
- School of Chemical Engineering Changchun University of Technology Changchun China
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McGinty S, King D, Pontrelli G. Mathematical modelling of variable porosity coatings for controlled drug release. Med Eng Phys 2017; 45:51-60. [DOI: 10.1016/j.medengphy.2017.04.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 02/27/2017] [Accepted: 04/04/2017] [Indexed: 11/30/2022]
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5
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Bui VT, Dao VD, Choi HS. Transferable thin films with sponge-like porous structure via improved phase separation. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.08.063] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Guo T, Che P, Heng L, Fan L, Jiang L. Anisotropic Slippery Surfaces: Electric-Driven Smart Control of a Drop's Slide. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:6999-7007. [PMID: 27197963 DOI: 10.1002/adma.201601239] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/01/2016] [Indexed: 06/05/2023]
Abstract
Anisotropic slippery surfaces composed of directional, porous, conductive poly(3-hexylthiophene) (P3HT) fibers, and silicone oil exhibit excellent anisotropic sliding properties for several liquid droplets and the reversible control of conductive liquid droplets sliding on these surfaces under the application of voltage.
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Affiliation(s)
- Tianqi Guo
- School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Pengda Che
- School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
- Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Liping Heng
- School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Lizhen Fan
- Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Lei Jiang
- School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
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Liu H, Gao SW, Cai JS, He CL, Mao JJ, Zhu TX, Chen Z, Huang JY, Meng K, Zhang KQ, Al-Deyab SS, Lai YK. Recent Progress in Fabrication and Applications of Superhydrophobic Coating on Cellulose-Based Substrates. MATERIALS 2016; 9:ma9030124. [PMID: 28773253 PMCID: PMC5456681 DOI: 10.3390/ma9030124] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Revised: 01/25/2016] [Accepted: 01/29/2016] [Indexed: 12/21/2022]
Abstract
Multifuntional fabrics with special wettability have attracted a lot of interest in both fundamental research and industry applications over the last two decades. In this review, recent progress of various kinds of approaches and strategies to construct super-antiwetting coating on cellulose-based substrates (fabrics and paper) has been discussed in detail. We focus on the significant applications related to artificial superhydrophobic fabrics with special wettability and controllable adhesion, e.g., oil-water separation, self-cleaning, asymmetric/anisotropic wetting for microfluidic manipulation, air/liquid directional gating, and micro-template for patterning. In addition to the anti-wetting properties and promising applications, particular attention is paid to coating durability and other incorporated functionalities, e.g., air permeability, UV-shielding, photocatalytic self-cleaning, self-healing and patterned antiwetting properties. Finally, the existing difficulties and future prospects of this traditional and developing field are briefly proposed and discussed.
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Affiliation(s)
- Hui Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Shou-Wei Gao
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Jing-Sheng Cai
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Cheng-Lin He
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Jia-Jun Mao
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Tian-Xue Zhu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Zhong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798.
| | - Jian-Ying Huang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Kai Meng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
- Research Center of Cooperative Innovation for Functional Organic/Polymer Material Micro/Nanofabrication, Soochow University, Suzhou 215123, China.
| | - Ke-Qin Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
- Research Center of Cooperative Innovation for Functional Organic/Polymer Material Micro/Nanofabrication, Soochow University, Suzhou 215123, China.
| | - Salem S Al-Deyab
- Department of Chemistry, Petrochemical Research Chair, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Yue-Kun Lai
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
- Research Center of Cooperative Innovation for Functional Organic/Polymer Material Micro/Nanofabrication, Soochow University, Suzhou 215123, China.
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Arora JS, Cremaldi JC, Holleran MK, Ponnusamy T, He J, Pesika NS, John VT. Hydrogel Inverse Replicas of Breath Figures Exhibit Superoleophobicity Due to Patterned Surface Roughness. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1009-1017. [PMID: 26752016 DOI: 10.1021/acs.langmuir.5b03870] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The wetting behavior of a surface depends on both its surface chemistry and the characteristics of surface morphology and topography. Adding structure to a flat hydrophobic or oleophobic surface increases the effective contact angle and thus the hydrophobicity or oleophobicity of the surface, as exemplified by the lotus leaf analogy. We describe a simple strategy to introduce micropatterned roughness on surfaces of soft materials, utilizing the template of hexagonally packed pores of breath figures as molds. The generated inverse replicas represent micron scale patterned beadlike protrusions on hydrogel surfaces. This added roughness imparts superoleophobic properties (contact angle of the order of 150° and greater) to an inherently oleophobic flat hydrogel surface, when submerged. The introduced pattern on the hydrogel surface changes morphology as it swells in water to resemble morphologies remarkably analogous to the compound eye. Analysis of the wetting behavior using the Cassie-Baxter approximation leads to estimation of the contact angle in the superoleophobic regime and in agreement with the experimental value.
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Affiliation(s)
- Jaspreet Singh Arora
- Department of Chemical and Biomolecular Engineering, Tulane University , New Orleans, Louisiana 70118, United States
| | - Joseph C Cremaldi
- Department of Chemical and Biomolecular Engineering, Tulane University , New Orleans, Louisiana 70118, United States
| | - Mary Kathleen Holleran
- Department of Chemical and Biomolecular Engineering, Tulane University , New Orleans, Louisiana 70118, United States
| | - Thiruselvam Ponnusamy
- Department of Chemical and Biomolecular Engineering, Tulane University , New Orleans, Louisiana 70118, United States
| | - Jibao He
- Department of Chemical and Biomolecular Engineering, Tulane University , New Orleans, Louisiana 70118, United States
| | - Noshir S Pesika
- Department of Chemical and Biomolecular Engineering, Tulane University , New Orleans, Louisiana 70118, United States
- Vector Borne Infectious Diseases Research Center, Tulane University , New Orleans, Louisiana 70112, United States
| | - Vijay T John
- Department of Chemical and Biomolecular Engineering, Tulane University , New Orleans, Louisiana 70118, United States
- Vector Borne Infectious Diseases Research Center, Tulane University , New Orleans, Louisiana 70112, United States
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9
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Ronen A, Walker SL, Jassby D. Electroconductive and electroresponsive membranes for water treatment. REV CHEM ENG 2016. [DOI: 10.1515/revce-2015-0060] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractIn populated, water-scarce regions, seawater and wastewater are considered as potable water resources that require extensive treatment before being suitable for consumption. The separation of water from salt, organic, and inorganic matter is most commonly done through membrane separation processes. Because of permeate flux and concentration polarization, membranes are prone to fouling, resulting in a decline in membrane performance and increased energy demands. As the physical and chemical properties of commercially available membranes (polymeric and ceramic) are relatively static and insensitive to changes in the environment, there is a need for stimuli-reactive membranes with controlled, tunable surface and transport properties to decrease fouling and control membrane properties such as hydrophilicity and permselectivity. In this review, we first describe the application of electricity-conducting and electricity-responsive membranes (ERMs) for fouling mitigation. We discuss their ability to reduce organic, inorganic, and biological fouling by several mechanisms, including control over the membrane’s surface morphology, electrostatic rejection, piezoelectric vibrations, electrochemical reactions, and local pH changes. Next, we examine the use of ERMs for permselectivity modification, which allows for the optimization of rejection and control over ion transport through the application of electrical potentials and the use of electrostatically charged membrane surfaces. In addition, electrochemical reactions coupled with membrane filtration are examined, including electro-oxidation and electro-Fenton reactions, demonstrating the capability of ERMs to electro-oxidize organic contaminates with high efficiency due to high surface area and reduced mass diffusion limitations. When applicable, ERM applications are compared with commercial membranes in terms of energy consumptions. We conclude with a brief discussion regarding the future directions of ERMs and provide examples of several applications such as pore size and selectivity control, electrowettability, and capacitive deionization. To provide the reader with the current state of knowledge, the review focuses on research published in the last 5 years.
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10
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Guo F, Guo Z. Inspired smart materials with external stimuli responsive wettability: a review. RSC Adv 2016. [DOI: 10.1039/c6ra04079a] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Recent progress in smart surfaces with responsive wettability upon external stimuli is reviewed and some of the barriers and potentially promising breakthroughs in this field are also briefly discussed.
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Affiliation(s)
- Fei Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- People's Republic of China
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- People's Republic of China
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