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Slepička P, Siegel J, Šlouf M, Fajstavr D, Fajstavrová K, Kolská Z, Švorčík V. The Functionalization of a Honeycomb Polystyrene Pattern by Excimer Treatment in Liquid. Polymers (Basel) 2022; 14:polym14224944. [PMID: 36433071 PMCID: PMC9698802 DOI: 10.3390/polym14224944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/10/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022] Open
Abstract
In this article, we present a unique combination of techniques focusing on the immobilization of noble metal nanoparticles into a honeycomb polystyrene pattern prepared with the improved phase-separation technique. The procedure consists of two main steps: the preparation of the honeycomb pattern (HCP) on a perfluoroethylenepropylene substrate (FEP), followed by an immobilization procedure realized by the honeycomb pattern's exposure to an excimer laser in a noble metal nanoparticle solution. The surface physico-chemical properties, mainly the surface morphology and chemistry, are characterized in detail in the study. The two-step procedure represents the unique architecture of the surface immobilization process, which reveals a wide range of potential applications, mainly in tissue engineering, but also as substrates for analytical use.
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Affiliation(s)
- Petr Slepička
- Department of Solid State Engineering, University of Chemistry and Technology Prague, Technická 5, 16628 Prague, Czech Republic
- Correspondence:
| | - Jakub Siegel
- Department of Solid State Engineering, University of Chemistry and Technology Prague, Technická 5, 16628 Prague, Czech Republic
| | - Miroslav Šlouf
- Innovation Centre of the Institute of Macromolecular Chemistry, Academy of Sciences of Czech Republic, Prague 6 Brevnov, 16200 Prague, Czech Republic
| | - Dominik Fajstavr
- Department of Solid State Engineering, University of Chemistry and Technology Prague, Technická 5, 16628 Prague, Czech Republic
| | - Klára Fajstavrová
- Department of Solid State Engineering, University of Chemistry and Technology Prague, Technická 5, 16628 Prague, Czech Republic
| | - Zdeňka Kolská
- Faculty of Science, J. E. Purkyne University, 40001 Usti Nad Labem, Czech Republic
| | - Václav Švorčík
- Department of Solid State Engineering, University of Chemistry and Technology Prague, Technická 5, 16628 Prague, Czech Republic
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2
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Falak S, Shin B, Huh D. Modified Breath Figure Methods for the Pore-Selective Functionalization of Honeycomb-Patterned Porous Polymer Films. NANOMATERIALS 2022; 12:nano12071055. [PMID: 35407174 PMCID: PMC9000584 DOI: 10.3390/nano12071055] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 11/16/2022]
Abstract
Recent developments in the field of the breath figure (BF) method have led to renewed interest from researchers in the pore-selective functionalization of honeycomb-patterned (HCP) films. The pore-selective functionalization of the HCP film gives unique properties to the film which can be used for specific applications such as protein recognition, catalysis, selective cell culturing, and drug delivery. There are several comprehensive reviews available for the pore-selective functionalization by the self-assembly process. However, considerable progress in preparation technologies and incorporation of new materials inside the pore surface for exact applications have emerged, thus warranting a review. In this review, we have focused on the pore-selective functionalization of the HCP films by the modified BF method, in which the self-assembly process is accompanied by an interfacial reaction. We review the importance of pore-selective functionalization, its applications, present limitations, and future perspectives.
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3
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Methanol assisted-massive production of surfactant-free ordered honeycomb polycaprolactone film. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02855-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Cheng Q, Lin L, Deng X, Zheng T, Wang Q, Gao Y, Zhai X, Yang J, Ma W, Li X, Zhang Y. Large-Scale and Low-Cost Preparation of Ordered Honeycomb-Patterned Film by Solvent Evaporation-Induced Phase Separation Method. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c04780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Qi Cheng
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Ligang Lin
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Xuesong Deng
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Tiantian Zheng
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Qi Wang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Yixin Gao
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Xiaofei Zhai
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Jing Yang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Wensong Ma
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Xinyang Li
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Yuzhong Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
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5
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Alvarez S, Marcasuzaa P, Billon L. Bio-Inspired Silica Films Combining Block Copolymers Self-Assembly and Soft Chemistry: Paving the Way toward Artificial Exosqueleton of Seawater Diatoms. Macromol Rapid Commun 2020; 42:e2000582. [PMID: 33274818 DOI: 10.1002/marc.202000582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/06/2020] [Indexed: 11/09/2022]
Abstract
This review is in line with the principles of bio-inspiration and biomimicry in order to envisage a softer and more environmentally friendly chemistry. Here, the source of inspiration is a microalga from the oceans with the ability to build an exoskeleton of silica under ambient conditions. Following this model, this review is interested in different ways of creating porous silica films with a hierarchical porosity similar to diatoms. For this purpose, polymeric/hybrid/inorganic films structured in honeycomb using the breath figure method are reported. This versatile and easy to implement method based on the principle of rapid evaporation of a solvent in a humid atmosphere is widely used in the formation of structured films with micron-sized pores. In addition to this, the self-assembly of copolymer at the nanoscale can be addressed to obtain a hierarchically structured film. Following this structuration step, the degradation of a sacrificial block is then described from the most energy-intensive to soft process, allowing an added nanoporosity to the micron porosity of the BF method. Finally, hierarchical porous silica films are described using the sol-gel process, which is known as a soft chemistry process.
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Affiliation(s)
- Sandra Alvarez
- Universite de Pau et Pays de l'Adour, E2S UPPA, CNRS, Institut des Sciences Analytiques & de PhysicoChimie pour l'Environnement & les Matériaux, UMR5254, 2 avenue du Président Angot, Pau, F-64053, France.,Bio-Inspired Materials Group: Functionalities and Self-Assembly, E2S UPPA, IPREM UMR 5254, 2 avenue du Président Angot, Pau, F-64053, France
| | - Pierre Marcasuzaa
- Universite de Pau et Pays de l'Adour, E2S UPPA, CNRS, Institut des Sciences Analytiques & de PhysicoChimie pour l'Environnement & les Matériaux, UMR5254, 2 avenue du Président Angot, Pau, F-64053, France.,Bio-Inspired Materials Group: Functionalities and Self-Assembly, E2S UPPA, IPREM UMR 5254, 2 avenue du Président Angot, Pau, F-64053, France
| | - Laurent Billon
- Universite de Pau et Pays de l'Adour, E2S UPPA, CNRS, Institut des Sciences Analytiques & de PhysicoChimie pour l'Environnement & les Matériaux, UMR5254, 2 avenue du Président Angot, Pau, F-64053, France.,Bio-Inspired Materials Group: Functionalities and Self-Assembly, E2S UPPA, IPREM UMR 5254, 2 avenue du Président Angot, Pau, F-64053, France
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6
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Fajstavrová K, Rimpelová S, Fajstavr D, Švorčík V, Slepička P. PLLA Honeycomb-Like Pattern on Fluorinated Ethylene Propylene as a Substrate for Fibroblast Growth. Polymers (Basel) 2020; 12:polym12112436. [PMID: 33105764 PMCID: PMC7690597 DOI: 10.3390/polym12112436] [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: 09/18/2020] [Revised: 10/17/2020] [Accepted: 10/20/2020] [Indexed: 11/26/2022] Open
Abstract
In this study, we present the surface patterning of a biopolymer poly(l-lactide) (PLLA) for fibroblast growth enhancement. The patterning is based on a self-organized pore arrangement directly fabricated from a ternary system of a solvent-nonsolvent biopolymer. We successfully created a porous honeycomb-like pattern (HCP) on a thermally resistant polymer—fluorinated ethylene propylene (FEP). An important preparation step for HCP is activation of the substrate in Ar plasma discharge. The polymer activation leads to changes in the surface chemistry, which corresponds to an increase in the substrate surface wettability. The aim of this study was to evaluate the influence of the PLLA concentration in solution on the surface morphology, roughness, wettability, and chemistry, and subsequently, also on fibroblast proliferation. We confirmed that the amount of PLLA in solution significantly affects the material surface properties. The pore size of the prepared layers, the surface wettability, and the surface oxygen content increased with an increasing amount of biopolymer in the coating solution. The optimal amount was 1 g of PLLA, which resulted in the highest number of cells after 6 days from seeding; however, all three biopolymer concentrations exhibited significantly better results compared to pristine FEP. The cytocompatibility tests showed that the HCP promoted the attachment of cell filopodia to the underlying substrate and, thus, significantly improved the cell–material interactions. We prepared a honeycomb biodegradable support for enhanced cell growth, so the surface properties of perfluoroethylenepropylene were significantly enhanced.
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Affiliation(s)
- Klára Fajstavrová
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (K.F.); (D.F.); (V.Š.)
| | - Silvie Rimpelová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic
- Correspondence: (S.R.); (P.S.)
| | - Dominik Fajstavr
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (K.F.); (D.F.); (V.Š.)
| | - Václav Švorčík
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (K.F.); (D.F.); (V.Š.)
| | - Petr Slepička
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (K.F.); (D.F.); (V.Š.)
- Correspondence: (S.R.); (P.S.)
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7
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Huang J, Zhu J, Sun W, Ji J. Versatile and Functional Surface Patterning of in Situ Breath Figure Pore Formation via Solvent Treatment. ACS APPLIED MATERIALS & INTERFACES 2020; 12:47048-47058. [PMID: 32959646 DOI: 10.1021/acsami.0c14614] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Surface patterning of in situ pore formation was studied in this research based on the solvent treatment breath figure (stBF) method. By applying the volatile solvent onto the preshaped polymeric objects under humid conditions, hexagonally arranged pore arrays were formed on the surface efficiently. The stBF method was performed on many different polymeric samples with planar and nonplanar surfaces, and facile pore formation was achieved on these surfaces by conducting the solvent treatment in different ways of dipping, casting, and vapor treatment. The water droplets condensed from the humid air were proved to be the origin of the pore arrays just like the case of classic BF process. The influencing factors including solvent types, surfactant addition, and polymer types were evaluated for their impact on the resultant stBF morphologies. In situ three-dimensional (3D) pore formation was achieved for both macroscopic- and microscopic-sized 3D-structured objects. Chemical patterning of the introduced minor component was also achieved in the stBF pore-forming process with high efficiency and site selectivity. Moreover, the capability of pore formation and erasure with high spatial accuracy using multiple solvent treatments was revealed for the stBF method to make rewritable and hierarchical patterns. Both the selective chemical decoration and rewritable patterning serve as intriguing features of the stBF method. The establishment of the stBF method makes the classic BF process more flexible to practice and less dependent on the external conditions, showing potential for applications such as facile surface patterning with multifunctionality on devices with complex geometry.
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Affiliation(s)
- Junjie Huang
- Department of Materials Science and Engineering, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jiafeng Zhu
- Department of Materials Science and Engineering, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Wei Sun
- Department of Materials Science and Engineering, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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8
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Faria AMA, Miranda MA, Gonçalves GE, Bianchi RF, Bianchi AGC, Cuba C, Neves BRA, Pinto ES. Partially ordered porous structures on layer‐by‐layer polyaniline/poly(vinyl sulfate sodium) ultrathin films: Easy fabrication of robust submicroscopic patterning. J Appl Polym Sci 2020. [DOI: 10.1002/app.48597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- A. M. A. Faria
- Instituto Federal de Minas Gerais—Campus Ouro Preto 35400‐00 Ouro Preto Minas Gerais Brazil
- Laboratório de Polímeros e Propriedades Eletrônicas de Materiais, Departamento de FísicaUniversidade Federal de Ouro Preto 35400‐000 Ouro Preto Minas Gerais Brazil
| | - M. A. Miranda
- Instituto Federal de Minas Gerais—Campus Ouro Preto 35400‐00 Ouro Preto Minas Gerais Brazil
| | - G. E. Gonçalves
- Instituto Federal de Minas Gerais—Campus Ouro Preto 35400‐00 Ouro Preto Minas Gerais Brazil
| | - R. F. Bianchi
- Laboratório de Polímeros e Propriedades Eletrônicas de Materiais, Departamento de FísicaUniversidade Federal de Ouro Preto 35400‐000 Ouro Preto Minas Gerais Brazil
| | - A. G. C. Bianchi
- Laboratório de Polímeros e Propriedades Eletrônicas de Materiais, Departamento de FísicaUniversidade Federal de Ouro Preto 35400‐000 Ouro Preto Minas Gerais Brazil
| | - C. Cuba
- Laboratório de Polímeros e Propriedades Eletrônicas de Materiais, Departamento de FísicaUniversidade Federal de Ouro Preto 35400‐000 Ouro Preto Minas Gerais Brazil
| | - B. R. A. Neves
- Laboratório de Nanoscopia, Departamento de FísicaUniversidade Federal de Minas Gerais 30123‐970 Belo Horizonte Brazil
| | - E. S. Pinto
- Instituto Federal de Minas Gerais—Campus Ouro Preto 35400‐00 Ouro Preto Minas Gerais Brazil
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9
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Lin YL, Karapala VK, Shen MH, Chen YF, He HC, Chang CJ, Chang YC, Lu TC, Liau I, Chen JT. Reproducible and Bendable SERS Substrates with Tailored Wettability Using Block Copolymers and Anodic Aluminum Oxide Templates. Macromol Rapid Commun 2020; 41:e2000088. [PMID: 32329178 DOI: 10.1002/marc.202000088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/31/2020] [Accepted: 04/02/2020] [Indexed: 12/25/2022]
Abstract
Surface properties are essential for substrates exhibiting high sensitivity in surface-enhanced Raman scattering (SERS) applications. In this work, novel SERS hybrid substrates using polystyrene-block-poly(methyl methacrylate) and anodic aluminum oxide templates is presented. The hybrid substrates not only possess hierarchical porous nanostructures but also exhibit superhydrophilic surface properties with the water contact angle ≈0°. Such surfaces play an important role in providing uniform enhanced intensities over large areas (relative standard deviation ≈10%); moreover, these substrates are found to be highly sensitive (limit of detection ≈10-12 m for rhodamine 6G (R6G)). The results show that the hybrid SERS substrates can achieve the simultaneous detection of multicomponent mixtures of different target molecules, such as R6G, crystal violet, and methylene blue. Furthermore, the bending experiments show that about 70% of the SERS intensities are maintained after bending from ≈30° to 150°.
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Affiliation(s)
- Yu-Liang Lin
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | | | - Ming-Hui Shen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Yi-Fan Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Hung-Chieh He
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Chia-Jui Chang
- Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Yu-Ching Chang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan.,Institute of Molecular Science, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Tien-Chang Lu
- Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Ian Liau
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan.,Institute of Molecular Science, National Chiao Tung University, Hsinchu, 30010, Taiwan.,Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30010, Taiwan.,Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu, 30010, Taiwan
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10
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Fabrication of hexagonally arranged porous carbon films by proton beam irradiation and carbonization. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2019.05.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Fabrication of robust honeycomb patterned porous films by thermochemical cross-linking of polyimide. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121597] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Xu L, Qian S, Zheng W, Bai Y, Zhao Y. Formation Mechanism and Tuning for Bimodal Open-Celled Structure of Cellulose Acetate Foams Prepared by Supercritical CO2 Foaming and Poly(ethylene glycol) Leaching. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02753] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Linqiong Xu
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, People’s Republic of China
| | - Shaoping Qian
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, People’s Republic of China
| | - Wenge Zheng
- Ningbo Key Lab of Polymer Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, People’s Republic of China
| | - Yongkang Bai
- School of Chemical Engineering and Technology, Xi’an Jiao Tong University, Xi’an 710049, People’s Republic of China
| | - Yongqing Zhao
- Ningbo Key Lab of Polymer Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, People’s Republic of China
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13
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Lee LR, Liu CT, Tseng HF, Lin KT, Chu CW, Chen JT. Hierarchical Polymer Structures Using Templates and the Modified Breath Figure Method. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7472-7478. [PMID: 29804459 DOI: 10.1021/acs.langmuir.8b01381] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hierarchical structures are commonly observed in nature and possess unique properties. The fabrication of hierarchical structures with well-controlled sizes in different length scales, however, is still a great challenge. To further understand the morphologies and properties of the hierarchical structures, here we present a novel strategy to prepare hierarchical polymer structures by combining the modified breath figure method and the template method. Poly(methyl methacrylate) (PMMA) honeycomb films with regular micropores are first prepared using the modified breath figure method by dipping PMMA films into mixtures of chloroform and methanol. The polymer chains on the honeycomb films are then annealed and wetted into the nanopores of anodic aluminum oxide templates via capillary forces, resulting in the formation of hierarchical polymer structures. The morphologies of the polymer structures, which can be controlled by the molecular weights of the polymers and the concentrations of the polymer solutions, are characterized by scanning electron microscopy. The surface wettabilities of the polymer structures are also examined by water contact angle measurements, and the hierarchical structures are observed to be more hydrophobic than the flat films and honeycomb films. This work not only provides a feasible approach to fabricate hierarchical polymer structures with controlled sizes but also gives a better understanding of the relationship between surface morphologies and properties.
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14
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Bui VT, Thi Thuy L, Choi JS, Choi HS. Ordered cylindrical micropatterned Petri dishes used as scaffolds for cell growth. J Colloid Interface Sci 2018; 513:161-169. [DOI: 10.1016/j.jcis.2017.11.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 11/02/2017] [Accepted: 11/08/2017] [Indexed: 12/26/2022]
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15
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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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16
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Bui VT, Lee HS, Choi JH, Choi HS. Data from crosslinked PS honeycomb thin film by deep UV irradiation. Data Brief 2015; 5:990-4. [PMID: 26793742 PMCID: PMC4688971 DOI: 10.1016/j.dib.2015.11.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 10/29/2015] [Accepted: 11/08/2015] [Indexed: 11/29/2022] Open
Abstract
Thin polystyrene (PS) films with highly ordered honeycomb pattern were successfully fabricated by an improved phase separation method. The PS film was successfully crosslinked after applying a deep UV irradiation. This work presents a proof of crosslinking PS by characterizing ATR-FTIR, TGA and the wetting property of the honeycomb films, which were prepared using a solvent/non-solvent ratio of 90/10, before and after 6 h of UV irradiation.
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Affiliation(s)
- Van-Tien Bui
- Department of Chemical Engineering, Chungnam National University, 220 Gung-Dong, Yuseong-Gu, Daejeon 305-764, Republic of Korea
| | - Hwa Su Lee
- Polymer Science and Engineering, Chungnam National University, 220 Gung-Dong, Yuseong-Gu, Daejeon 305-764, Republic of Korea
| | - Jae-Hak Choi
- Polymer Science and Engineering, Chungnam National University, 220 Gung-Dong, Yuseong-Gu, Daejeon 305-764, Republic of Korea
| | - Ho-Suk Choi
- Department of Chemical Engineering, Chungnam National University, 220 Gung-Dong, Yuseong-Gu, Daejeon 305-764, Republic of Korea
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