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Smolka P, Kadlečková M, Kocourková K, Bartoňová M, Mikulka F, Knechtová E, Mráček A, Musilová L, Humenik M, Minařík A. Controlled Structuring of Hyaluronan Films by Phase Separation and Inversion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:13140-13148. [PMID: 37656891 PMCID: PMC10515624 DOI: 10.1021/acs.langmuir.3c01547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/14/2023] [Indexed: 09/03/2023]
Abstract
This work explores application of phase separation phenomena for structuring of films made from hyaluronan. A time-sequenced dispensing of different solution mixtures was applied under rotation of hyaluronan-covered substrates to generate surface textures. This method is applicable in direct surface modification or cover layer deposition. Changes in the surface topography were characterized by atomic force microscopy, optical microscopy, and contact and non-contact profilometry. The mechanical properties of the surface-modified self-supporting films were compared using a universal testing machine. Experimental results show that diverse hyaluronan-based surface reliefs and self-supporting films with improved mechanical properties can be prepared using a newly designed multi-step phase separation process without the need for sacrificial removable templates or additives.
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Affiliation(s)
- Petr Smolka
- Department
of Physics and Materials Engineering, Tomas
Bata University in Zlín, Vavrečkova 5669, Zlín 760 01, Czech Republic
- Centre
of Polymer Systems, Tomas Bata University
in Zlín, Třída
Tomáše Bati 5678, Zlín 760 01, Czech Republic
| | - Markéta Kadlečková
- Department
of Physics and Materials Engineering, Tomas
Bata University in Zlín, Vavrečkova 5669, Zlín 760 01, Czech Republic
- Centre
of Polymer Systems, Tomas Bata University
in Zlín, Třída
Tomáše Bati 5678, Zlín 760 01, Czech Republic
| | - Karolína Kocourková
- Department
of Physics and Materials Engineering, Tomas
Bata University in Zlín, Vavrečkova 5669, Zlín 760 01, Czech Republic
| | - Martina Bartoňová
- Department
of Physics and Materials Engineering, Tomas
Bata University in Zlín, Vavrečkova 5669, Zlín 760 01, Czech Republic
| | - Filip Mikulka
- Department
of Physics and Materials Engineering, Tomas
Bata University in Zlín, Vavrečkova 5669, Zlín 760 01, Czech Republic
| | - Eliška Knechtová
- Department
of Physics and Materials Engineering, Tomas
Bata University in Zlín, Vavrečkova 5669, Zlín 760 01, Czech Republic
| | - Aleš Mráček
- Department
of Physics and Materials Engineering, Tomas
Bata University in Zlín, Vavrečkova 5669, Zlín 760 01, Czech Republic
- Centre
of Polymer Systems, Tomas Bata University
in Zlín, Třída
Tomáše Bati 5678, Zlín 760 01, Czech Republic
| | - Lenka Musilová
- Department
of Physics and Materials Engineering, Tomas
Bata University in Zlín, Vavrečkova 5669, Zlín 760 01, Czech Republic
- Centre
of Polymer Systems, Tomas Bata University
in Zlín, Třída
Tomáše Bati 5678, Zlín 760 01, Czech Republic
| | - Martin Humenik
- Department
of Biomaterials, Faculty of Engineering Science, Universität Bayreuth, Prof.-Rüdiger-Bormann.Str. 1, Bayreuth 95447, Germany
| | - Antonín Minařík
- Department
of Physics and Materials Engineering, Tomas
Bata University in Zlín, Vavrečkova 5669, Zlín 760 01, Czech Republic
- Centre
of Polymer Systems, Tomas Bata University
in Zlín, Třída
Tomáše Bati 5678, Zlín 760 01, Czech Republic
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Kadlečková M, Skopalová K, Ptošková B, Wrzecionko E, Daďová E, Kocourková K, Mráček A, Musilová L, Smolka P, Humpolíček P, Minařík A. Hierarchically Structured Surfaces Prepared by Phase Separation: Tissue Mimicking Culture Substrate. Int J Mol Sci 2022; 23:ijms23052541. [PMID: 35269688 PMCID: PMC8910751 DOI: 10.3390/ijms23052541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/18/2022] [Accepted: 02/23/2022] [Indexed: 02/05/2023] Open
Abstract
The pseudo 3D hierarchical structure mimicking in vivo microenvironment was prepared by phase separation on tissue culture plastic. For surface treatment, time-sequenced dosing of the solvent mixture with various concentrations of polymer component was used. The experiments showed that hierarchically structured surfaces with macro, meso and micro pores can be prepared with multi-step phase separation processes. Changes in polystyrene surface topography were characterized by atomic force microscopy, scanning electron microscopy and contact profilometry. The cell proliferation and changes in cell morphology were tested on the prepared structured surfaces. Four types of cell lines were used for the determination of impact of the 3D architecture on the cell behavior, namely the mouse embryonic fibroblast, human lung carcinoma, primary human keratinocyte and mouse embryonic stem cells. The increase of proliferation of embryonic stem cells and mouse fibroblasts was the most remarkable. Moreover, the embryonic stem cells express different morphology when cultured on the structured surface. The acquired findings expand the current state of knowledge in the field of cell behavior on structured surfaces and bring new technological procedures leading to their preparation without the use of problematic temporary templates or additives.
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Affiliation(s)
- Markéta Kadlečková
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Kateřina Skopalová
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Barbora Ptošková
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
| | - Erik Wrzecionko
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Eliška Daďová
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Karolína Kocourková
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Aleš Mráček
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Lenka Musilová
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Petr Smolka
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Petr Humpolíček
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
- Correspondence: (P.H.); (A.M.)
| | - Antonín Minařík
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
- Correspondence: (P.H.); (A.M.)
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Zein-Based Films Containing Monolaurin/Eugenol or Essential Oils with Potential for Bioactive Packaging Application. Int J Mol Sci 2021; 23:ijms23010384. [PMID: 35008810 PMCID: PMC8745270 DOI: 10.3390/ijms23010384] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/25/2021] [Accepted: 12/27/2021] [Indexed: 01/05/2023] Open
Abstract
Zein is renewable plant protein with valuable film-forming properties that can be used as a packaging material. It is known that the addition of natural cross-linkers can enhance a film’s tensile properties. In this study, we aimed to prepare antimicrobial zein-based films enriched with monolaurin, eugenol, oregano, and thyme essential oil. Films were prepared using the solvent casting technique from ethanol solution. Their physicochemical properties were investigated using structural, morphological, and thermal techniques. Polar and dispersive components were analyzed using two models to evaluate the effects on the surface free energy values. The antimicrobial activity was proven using a disk diffusion method and the suppression of bacterial growth was confirmed via a growth kinetics study with the Gompertz function. The films’ morphological characteristics led to systems with uniform distribution of essential oils or eugenol droplets combined with a flat-plated structure of monolaurin. A unique combination of polyphenolic eugenol and amphiphilic monoglyceride provided highly stretchable films with enhanced barrier properties and efficiency against Gram-positive and Gram-negative bacteria, yeasts, and molds. The prepared zein-based films with tunable surface properties represent an alternative to non-renewable resources with a potential application as active packaging materials.
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Hierarchically Structured Polystyrene-Based Surfaces Amplifying Fluorescence Signals: Cytocompatibility with Human Induced Pluripotent Stem Cell. Int J Mol Sci 2021; 22:ijms222111943. [PMID: 34769373 PMCID: PMC8584612 DOI: 10.3390/ijms222111943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/10/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022] Open
Abstract
An innovative multi-step phase separation process was used to prepare tissue culture for the polystyrene-based, hierarchically structured substrates, which mimicked in vivo microenvironment and architecture. Macro- (pore area from 3000 to 18,000 µm2; roughness (Ra) 7.2 ± 0.1 µm) and meso- (pore area from 50 to 300 µm2; Ra 1.1 ± 0.1 µm) structured substrates covered with micro-pores (area around 3 µm2) were prepared and characterised. Both types of substrate were suitable for human-induced pluripotent stem cell (hiPSC) cultivation and were found to be beneficial for the induction of cardiomyogenesis in hiPSC. This was confirmed both by the number of promoted proliferated cells and the expressions of specific markers (Nkx2.5, MYH6, MYL2, and MYL7). Moreover, the substrates amplified the fluorescence signal when Ca2+ flow was monitored. This property, together with cytocompatibility, make this material especially suitable for in vitro studies of cell/material interactions within tissue-mimicking environments.
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Blinov IA, Belov NA, Suvorov AV, Chirkov SV, Kostina YV, Mazur AS, Kambur MP, Belochvostov VM, Alentiev AY, Vozniuk ON, Yampolskii YP. Fluorination of polystyrene by elemental fluorine in liquid media. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2021.109777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Robust Super-Hydrophobic Coating Prepared by Electrochemical Surface Engineering for Corrosion Protection. COATINGS 2019. [DOI: 10.3390/coatings9070452] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Corrosion—reactions occuring between engineering materials and their environment—can cause material failure and catastrophic accidents, which have a serious impact on economic development and social stability. Recently, super-hydrophobic coatings have received much attention due to their effectiveness in preventing engineering materials from further corrosion. In this paper, basic principles of wetting properties and corrosion protection mechanism of super-hydrophobic coatings are introduced firstly. Secondly, the fabrication methods by electrochemical surface engineering—including electrochemical anodization, micro-arc oxidation, electrochemical etching, and deposition—are presented. Finally, the stabilities and future directions of super-hydrophobic coatings are discussed in order to promote the movement of such coatings into real-world applications. The objective of this review is to bring a brief overview of the recent progress in the fabrication of super-hydrophobic coatings by electrochemical surface methods for corrosion protection of engineering materials.
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Fabrication of Green Superhydrophobic/Superoleophilic Wood Flour for Efficient Oil Separation from Water. Processes (Basel) 2019. [DOI: 10.3390/pr7070414] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The removal of oil from waste water is gaining increasing attention. In this study, a novel synthesis method of green superhydrophobic/superoleophilic wood flour is proposed using the deposition of nano–zinc oxide (nZnO) aggregated on the fiber surface and the subsequent hydrophobic modification of octadecanoic acid. The as-prepared wood flour displayed great superhydrophobicity and synchronous superoleophilicity properties with the water contact angle (WCA) of 156° and oil contact angle (OCA) of 0° for diesel oil. Furthermore, the as-prepared wood flour possessed an excellent stability, probably due to the strong adhesion of nZnO, which aggregates to the fiber surface of wood flour with the action of glutinous polystyrene. The maximum adsorption capacity of as-prepared wood flour was 20.81 g/g for engine oil, which showed that the as-prepared wood flour is a potential candidate as an efficient oil adsorbent in the field of water-oil separation. Moreover, it has good chemical steadiness and environmental durability. Taken together, all the information acquired from this research could be valuable in evaluating the potential of as-prepared wood flour as a competitive and sustainable oil-water separation material.
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Abstract
Superhydrophobicity is one of the most required surface properties for a wide range of application such as self-cleaning, anti-corrosion, oil-water separation, anti-icing, and anti-bioadhesion. Recently, several methods have been developed to produce nature inspired super-hydrophobic surfaces. Nevertheless, these methods require a complicated process and expensive equipment. In order to overcome these issues, we propose three different methods to obtain nature-inspired super-hydrophobic surfaces: short-term treatment with boiling water, HF/HCl and HNO3/HCl concentrated solution etching. Afterwards, a thin layer of octadecylsilane was applied by in situ polymerization on all pre-treated surfaces. Eventually, all substrates were dried for 3 h at 100 °C to complete the silane curing. Scanning electron microscopy (SEM), contact angle measuring system and atomic force microscope (AFM) were used to characterize the surfaces. Surface morphology analysis showed that each method results in a specific dual hierarchical nano-/micro-structure. The corresponding water contact angles ranged from 160° to nearly 180°. The best results were observed for HF etched Al 6082 surface were water contact angle above 175° was achieved. Furthermore, a scheme able to assess the relationship between hydrophobic behavior and surface morphology was finally proposed.
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Wang Q, Xiong J, Chen G, Xinping O, Yu Z, Chen Q, Yu M. Facile Approach to Develop Hierarchical Roughness fiber@SiO 2 Blocks for Superhydrophobic Paper. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E1393. [PMID: 31035671 PMCID: PMC6539994 DOI: 10.3390/ma12091393] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 04/25/2019] [Accepted: 04/26/2019] [Indexed: 11/16/2022]
Abstract
Papers with nanoscaled surface roughness and hydrophobically modification have been widely used in daily life. However, the relatively complex preparation process, high costs and harmful compounds have largely limited their applications. This research aims to fabricate superhydrophobic papers with low cost and nontoxic materials. The surface of cellulose fibers was initially coated with a film of SiO2 nanoparticles via sol-gel process. After papermaking and subsequent modification with hexadecyltrimethoxysilane through a simple solution-immersion process, the paper showed excellent superhydrophobic properties, with water contact angles (WCA) larger than 150°. Moreover, the prepared paper also showed superior mechanical durability against 10 times of deformation. The whole preparation process was carried out in a mild environment, with no intricate instruments or toxic chemicals, which has the potential of large-scale industrial production and application.
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Affiliation(s)
- Qing Wang
- YUTO Research Institute, Shenzhen YUTO Packaging Technology Co., Ltd., Shenzhen 518000, China.
| | - Jieyi Xiong
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Guangxue Chen
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Ouyang Xinping
- School of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Zhaohui Yu
- YUTO Research Institute, Shenzhen YUTO Packaging Technology Co., Ltd., Shenzhen 518000, China.
| | - Qifeng Chen
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Mingguang Yu
- School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China.
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