1
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Tan L, Wang Y, Li M. Formation of Microporous Poly Acrylonitrile-Co-Methyl Acrylate Membrane via Thermally Induced Phase Separation for Immiscible Oil/Water Separation. Molecules 2024; 29:2302. [PMID: 38792160 PMCID: PMC11123695 DOI: 10.3390/molecules29102302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/06/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
An interconnected sponge structure and porous surface poly (acrylonitrile-co-methyl acrylate) (P(AN-MA)) microfiltration membranes (MF) were fabricated via thermally induced phase separation (TIPS) by using caprolactam (CPL), and acetamide (AC) as the mixed diluent. When the ternary system was composed of 15 wt.% P(AN-MA), 90 wt.% CPL, and 10 wt.% AC and formed in a 25 °C air bath, the membrane exhibited the highest water flux of 8107 L/m2·h. The P(AN-MA) membrane contained hydrophobic groups (-COOCH3) and hydrophilic groups (-CN), leading it to exhibit oleophobic properties underwater and hydrophobic properties in oil. The membrane demonstrates efficient separation of immiscible oil/water mixtures. The pure water flux of the petroleum ether/water mixture measured 870 L/m2·h, and the pure oil flux of the petroleum tetrachloride/water mixture measured 1230 L/m2·h under the influence of gravity. Additionally, the recovery efficiency of diluents through recrystallization was 85.3%, significantly reducing potential pollution and production costs.
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Affiliation(s)
- Linli Tan
- College of Intelligent Systems Science and Technology, Hubei Minzu University, Enshi 445000, China
- Key Laboratory of Green Manufacturing of Super-Light Elastomer Materials of State Ethnic Affairs Com, Enshi 445000, China
| | - Yuqi Wang
- College of Intelligent Systems Science and Technology, Hubei Minzu University, Enshi 445000, China
- Key Laboratory of Green Manufacturing of Super-Light Elastomer Materials of State Ethnic Affairs Com, Enshi 445000, China
| | - Mingpu Li
- College of Intelligent Systems Science and Technology, Hubei Minzu University, Enshi 445000, China
- Key Laboratory of Green Manufacturing of Super-Light Elastomer Materials of State Ethnic Affairs Com, Enshi 445000, China
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2
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Zhu J, Wang J, Zhong H, Hu Y, Hu L, Rao P, Liu R, Zhu J, Li G. New method for measuring the pore sizes and pore size distributions of filter membranes-the fluorescence probe method. Mikrochim Acta 2023; 190:469. [PMID: 37971627 DOI: 10.1007/s00604-023-06043-z] [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: 08/31/2023] [Accepted: 10/26/2023] [Indexed: 11/19/2023]
Abstract
A novel, simple, and rapid method is demonstrated for measuring the pore size and pore size distribution of filtration membranes (FMs) used in aqueous applications with fluorescence probes. Because the selected fluorescent probes are mixable and have strong signals, combined with the operation of dead-end filtration, this method only requires small amounts of reagents; additionally, it is time-efficient by avoiding multiple rounds of filtration. This method detects the size of a FM pore throat (i.e., the narrowest position of a pore tunnel), which is more consistent with the actual filtration situation. The conditions, such as probe concentration, temperature, transmembrane pressure difference, and types of surfactants, have been optimized. The experimental results show that the fluorescence probe method has good accuracy and reproducibility for measuring the pore size and pore size distribution of both organic and inorganic FMs. The method is particularly suitable for rapid testing of the filtration performance (nominal pore size≥0.02 μm) of purchased or synthetic membranes in the laboratory.
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Affiliation(s)
- Jiaying Zhu
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China
- Petroleum and Chemical Industry Key Laboratory of Silicon Carbide Ceramic Membrane, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China
| | - Jinjie Wang
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China.
- Petroleum and Chemical Industry Key Laboratory of Silicon Carbide Ceramic Membrane, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China.
| | - Hui Zhong
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China
- Petroleum and Chemical Industry Key Laboratory of Silicon Carbide Ceramic Membrane, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China
| | - Yue Hu
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China
- Petroleum and Chemical Industry Key Laboratory of Silicon Carbide Ceramic Membrane, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China
| | - Liqun Hu
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China
- Petroleum and Chemical Industry Key Laboratory of Silicon Carbide Ceramic Membrane, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China
| | - Pinhua Rao
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China
| | - Rui Liu
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China
- Petroleum and Chemical Industry Key Laboratory of Silicon Carbide Ceramic Membrane, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China
| | - Jun Zhu
- National Engineering Research Center for Nanotechnology, 28 East Jiangchuan Road, Shanghai, 200241, People's Republic of China
| | - Guanghui Li
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China.
- Petroleum and Chemical Industry Key Laboratory of Silicon Carbide Ceramic Membrane, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, People's Republic of China.
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3
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Safandowska M, Makarewicz C, Rozanski A, Idczak R. Diminishment the gas permeability of polyethylene by "densification" of the amorphous regions. Sci Rep 2023; 13:19838. [PMID: 37963933 PMCID: PMC10645938 DOI: 10.1038/s41598-023-46276-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 10/30/2023] [Indexed: 11/16/2023] Open
Abstract
High-density polyethylene/paraffin wax (HDPE/wax) systems with adjustable density of the amorphous regions were prepared by a melt-blending process to optimize/control the final oxygen barrier properties. The introduction of paraffin wax (a low molecular weight modifier) is the key to tune the gas permeability properties of polyethylene-based materials. Density gradient column (DGC) measurements distinctly showed that the incorporation of modifier led to densification of the amorphous phase of semicrystalline HDPE consisting in a decrease in the average fractional free volume confirmed by positron annihilation lifetime spectroscopy (PALS). Polyethylene with "densified" amorphous phase exhibits lower oxygen permeability parameters compared to pristine polyethylene, but it is characterized by similar thermal and thermomechanical properties. An increase in the density of the amorphous regions of polyethylene by about 0.003 g/cm3, which corresponds to 0.3%, reduces the permeability of oxygen by up to 22%. For the first time, it has been proven that by controlling the density of the amorphous regions of semicrystalline polymers, it is possible to obtain materials with appropriate transport properties (without changing other properties) for applications meeting specific requirements.
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Affiliation(s)
- Marta Safandowska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland.
| | - Cezary Makarewicz
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
- The Bio-Med-Chem Doctoral School of the University of Lodz and Lodz Institutes of the Polish Academy of Sciences, Banacha 12/16, 90-237, Lodz, Poland
| | - Artur Rozanski
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland.
| | - Rafal Idczak
- Institute of Experimental Physics, University of Wroclaw, Maksa Borna 9, 50-204, Wroclaw, Poland
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4
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Zhu Y, Liu R, Xu X, Fu Y, Dai J, Zhang W, Zhang G, Zhang J, Ma X, Chen P. Construction and hydrophilic modification of dual-network structured nonwoven/UHMWPE composite membranes for water processing. RSC Adv 2023; 13:18480-18487. [PMID: 37346944 PMCID: PMC10280127 DOI: 10.1039/d3ra00920c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/11/2023] [Indexed: 06/23/2023] Open
Abstract
Water pollution caused by the continuous development of industrialization has always been a common concern of mankind. Herein, a novel strategy to fabricate a high-performance composite membrane based on dual-network structured nonwoven net/UHMWPE nanopores via a thermal phase separation and composite technique is reported. By thermal phase separation of ultra-high-molecular weight polyethylene (UHMWPE)/liquid paraffin (LP), this approach enables 3D nanopores to tightly bond with a nonwoven net to form a dual-network structure. The dual-network composite membrane possesses the integrated features of pore structure and high porosity (89.9%). After modification with hyperbranched polymers (HBPs), the composite membrane with the desirable surface chemistry achieves high-efficiency filtration (water flux = 1054 L m-2 h-1, rejection rate = 50 nm PS nanospheres almost close to 100%, and antibacterial properties). The fabrication of such composites may provide new insights into the design and development of high-performance filtration and separation materials for various applications.
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Affiliation(s)
- Yunan Zhu
- School of Textile & Clothing, National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University Nantong 226019 P. R. China +86 21 85012837
| | - Rong Liu
- School of Textile & Clothing, National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University Nantong 226019 P. R. China +86 21 85012837
| | - Xiaoxiao Xu
- School of Textile & Clothing, National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University Nantong 226019 P. R. China +86 21 85012837
| | - Yijun Fu
- School of Textile & Clothing, National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University Nantong 226019 P. R. China +86 21 85012837
| | - Jiamu Dai
- School of Textile & Clothing, National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University Nantong 226019 P. R. China +86 21 85012837
| | - Wei Zhang
- School of Textile & Clothing, National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University Nantong 226019 P. R. China +86 21 85012837
| | - Guangyu Zhang
- School of Textile & Clothing, National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University Nantong 226019 P. R. China +86 21 85012837
| | - Junxiong Zhang
- School of Textile & Clothing, National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University Nantong 226019 P. R. China +86 21 85012837
| | - Xiaomin Ma
- National Equipment New Material & Technology (Jiangsu) Co., Ltd Suzhou 215100 P. R. China
| | - Pin Chen
- Jiangsu Jinni Engineering Fabric Co., Ltd Nantong 226019 P. R. China
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5
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Li C, Tang Y, Lin H, Zhang C, Liu Z, Yu L, Wang X, Lin Y. Novel multiscale simulations on the membrane formation via hybrid induced phase separation process based on dissipative particle dynamics. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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6
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Fang P, Cui S, Song Z, Zhu L, Du M, Yang C. Phase-Field Simulation of the Effect of Coagulation Bath Temperature on the Structure and Properties of Polyvinylidene Fluoride Microporous Membranes Prepared by a Nonsolvent-Induced Phase Separation. ACS OMEGA 2023; 8:180-189. [PMID: 36643498 PMCID: PMC9835624 DOI: 10.1021/acsomega.2c06983] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
We used the phase-field model of the existing Nonsolvent Induced Phase Separation (NIPS) method to add the variable of temperature in simulating the changes in the process of membrane formation. The polyvinylidene fluoride (PVDF) membrane system was applied to examine the influence of coagulation bath temperature change on the skin-sublayer of the membrane structure, thereby elucidating the development process of membrane structure under different conditions and shedding light on the most suitable coagulation bath temperature ranges. It was found that as coagulation bath temperature increased, the number of interface pores in the outer skin layer decreased, but the size increased. As a result, it changed from the crack shape to round-hole shape, thus making the pore structure looser. In the sublayer, the mesh support structure was increased, which enhanced the mechanical strength of the membrane. Relevant experiments also verify the effectiveness of the model.
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Affiliation(s)
- Ping Fang
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
| | - Shurong Cui
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
| | - Zhaoyang Song
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
| | - Longtao Zhu
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
| | - Mingshan Du
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
| | - Chaoyu Yang
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
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7
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Basko A, Pochivalov K. Current State-of-the-Art in Membrane Formation from Ultra-High Molecular Weight Polyethylene. MEMBRANES 2022; 12:membranes12111137. [PMID: 36422129 PMCID: PMC9696610 DOI: 10.3390/membranes12111137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 05/12/2023]
Abstract
One of the materials that attracts attention as a potential material for membrane formation is ultrahigh molecular weight polyethylene (UHMWPE). One potential material for membrane formation is ultrahigh molecular weight polyethylene (UHMWPE). The present review summarizes the results of studies carried out over the last 30 years in the field of preparation, modification and structure and property control of membranes made from ultrahigh molecular weight polyethylene. The review also presents a classification of the methods of membrane formation from this polymer and analyzes the conventional (based on the analysis of incomplete phase diagrams) and alternative (based on the analysis of phase diagrams supplemented by a boundary line reflecting the polymer swelling degree dependence on temperature) physicochemical concepts of the thermally induced phase separation (TIPS) method used to prepare UHMWPE membranes. It also considers the main ways to control the structure and properties of UHMWPE membranes obtained by TIPS and the original variations of this method. This review discusses the current challenges in UHMWPE membrane formation, such as the preparation of a homogeneous solution and membrane shrinkage. Finally, the article speculates about the modification and application of UHMWPE membranes and further development prospects. Thus, this paper summarizes the achievements in all aspects of UHMWPE membrane studies.
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8
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Ranjbarrad S, Chan PK. The Effect of Conductive Heat Transfer on the Morphology Formation in Polymer Solutions Undergoing Thermally Induced Phase Separation. Polymers (Basel) 2022; 14:polym14204345. [PMID: 36297923 PMCID: PMC9609492 DOI: 10.3390/polym14204345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 11/19/2022] Open
Abstract
Owing to the fact that heat transfer during the thermally induced phase separation process is limited, a quench rate is inevitably entailed, which leads to the existence of temporal and spatial variations in temperature. Hence, it is of great importance to take into account the nonisothermality during the phase separation process, especially in high viscosity polymer solutions. In this study, the influence of conductive heat transfer on the morphology formation during the thermally induced phase separation process was investigated theoretically in terms of quench depth, boundary conditions, and enthalpy of demixing to elucidate the interaction between temperature and concentration through incorporating the nonlinear Cahn-Hilliard equation and the Fourier heat transfer equation in two dimensions. The Flory-Huggins free energy theory for the thermodynamics of phase separation, slow mode theory, and Rouse law for polymer diffusion without entanglements were taken into account in the model development. The simulation results indicated a strong interaction between heat transfer and phase separation, which impacted the morphology formation significantly. Results confirmed that quench depth had an indispensable impact on phase separation in terms of higher characteristic frequency by increasing the driving force for heat transfer. Applying quench from various boundaries led to a difference in the quench rate due to the high viscosity of the polymer solution. This led to a gradation in pore size and anisotropic morphology formation. The degree and direction of anisotropy depended on quench depth and rate, quench time, heat conduction rate inside the solution, solution viscosity, temperature evolution, and the enthalpy of demixing. It was also verified that the influence of enthalpy of demixing on phase separation could not be neglected as it increased the solution temperature and led to phase separation being accomplished at a higher temperature than the initial quench temperature.
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9
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Yang F, Liu C, Yang F, Xiang M, Wu T, Fu Q. Effects of diluent content on the crystallization behavior and morphology of polyethylene membrane fabricated via thermally induced phase separation process. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Membranes for extracorporeal membrane oxygenator (ECMO): history, preparation, modification and mass transfer. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.05.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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11
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Effect of polymer-solvent compatibility on polyamide hollow fiber membranes prepared via thermally induced phase separation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Pedersen DD, Kim S, Wagner WR. Biodegradable polyurethane scaffolds in regenerative medicine: Clinical translation review. J Biomed Mater Res A 2022; 110:1460-1487. [PMID: 35481723 DOI: 10.1002/jbm.a.37394] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/07/2022] [Accepted: 04/09/2022] [Indexed: 12/14/2022]
Abstract
Early explorations of tissue engineering and regenerative medicine concepts commonly utilized simple polyesters such as polyglycolide, polylactide, and their copolymers as scaffolds. These biomaterials were deemed clinically acceptable, readily accessible, and provided processability and a generally known biological response. With experience and refinement of approaches, greater control of material properties and integrated bioactivity has received emphasis and a broadened palette of synthetic biomaterials has been employed. Biodegradable polyurethanes (PUs) have emerged as an attractive option for synthetic scaffolds in a variety of tissue applications because of their flexibility in molecular design and ability to fulfill mechanical property objectives, particularly in soft tissue applications. Biodegradable PUs are highly customizable based on their composition and processability to impart tailored mechanical and degradation behavior. Additionally, bioactive agents can be readily incorporated into these scaffolds to drive a desired biological response. Enthusiasm for biodegradable PU scaffolds has soared in recent years, leading to rapid growth in the literature documenting novel PU chemistries, scaffold designs, mechanical properties, and aspects of biocompatibility. Despite the enthusiasm in the field, there are still few examples of biodegradable PU scaffolds that have achieved regulatory approval and routine clinical use. However, there is a growing literature where biodegradable PU scaffolds are being specifically developed for a wide range of pathologies and where relevant pre-clinical models are being employed. The purpose of this review is first to highlight examples of clinically used biodegradable PU scaffolds, and then to summarize the growing body of reports on pre-clinical applications of biodegradable PU scaffolds.
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Affiliation(s)
- Drake D Pedersen
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Seungil Kim
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - William R Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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14
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Dmitrieva ES, Anokhina TS, Novitsky EG, Volkov VV, Borisov IL, Volkov AV. Polymeric Membranes for Oil-Water Separation: A Review. Polymers (Basel) 2022; 14:polym14050980. [PMID: 35267801 PMCID: PMC8912433 DOI: 10.3390/polym14050980] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/17/2022] [Accepted: 02/20/2022] [Indexed: 02/01/2023] Open
Abstract
This review is devoted to the application of bulk synthetic polymers such as polysulfone (PSf), polyethersulfone (PES), polyacrylonitrile (PAN), and polyvinylidene fluoride (PVDF) for the separation of oil-water emulsions. Due to the high hydrophobicity of the presented polymers and their tendency to be contaminated with water-oil emulsions, methods for the hydrophilization of membranes based on them were analyzed: the mixing of polymers, the introduction of inorganic additives, and surface modification. In addition, membranes based on natural hydrophilic materials (cellulose and its derivatives) are given as a comparison.
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Affiliation(s)
| | - Tatyana S. Anokhina
- Correspondence: ; Tel.: +7-(495)-647-59-27 (ext. 202); Fax: +7-(495)-633-85-20
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15
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Directional Growth of cm-Long PLGA Nanofibers by a Simple and Fast Wet-Processing Method. MATERIALS 2022; 15:ma15020687. [PMID: 35057400 PMCID: PMC8777905 DOI: 10.3390/ma15020687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/23/2021] [Accepted: 12/28/2021] [Indexed: 01/25/2023]
Abstract
The development of aligned nanofibers as useful scaffolds for tissue engineering is an actively sought-for research objective. Here, we propose a novel improvement of an existing self-assembly-based nanofabrication technique (ASB-SANS). This improvement, which we termed Directional ASB-SANS, allows one to produce cm2-large domains of highly aligned poly(lactic-co-glycolic acid) (PLGA) nanofibers in a rapid, inexpensive, and easy way. The so-grown aligned PLGA nanofibers exhibited remarkable adhesion to different substrates (glass, polyimide, and Si/SiOx), even when immersed in PBS solution and kept at physiological temperature (37 °C) for up to two weeks. Finally, the Directional ASB-SANS technique allowed us to grow PLGA fibers also on highly heterogeneous substrates such as polyimide-based, gold-coated flexible electrodes. These results suggest the viability of Directional ASB-SANS method for realizing biocompatible/bioresorbable, nanostructured coatings, potentially suitable for neural interface systems.
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16
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Tang Y, Lin Y, Ford DM, Qian X, Cervellere MR, Millett PC, Wang X. A review on models and simulations of membrane formation via phase inversion processes. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119810] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Tang Y, Lin Y, Ma W, Wang X. A review on microporous polyvinylidene fluoride membranes fabricated via thermally induced phase separation for MF/UF application. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119759] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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18
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Poly(vinylidene fluoride-co-hexafluoro propylene) membranes prepared via thermally induced phase separation and application in direct contact membrane distillation. Front Chem Sci Eng 2021. [DOI: 10.1007/s11705-021-2098-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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19
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Hydrophilic modification of poly(aryl sulfone) membrane materials toward highly-efficient environmental remediation. Front Chem Sci Eng 2021. [DOI: 10.1007/s11705-021-2115-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Uchida Y, Uyama H, Minakuchi A, Matsunobu K, Yoshida M, Shirakawa Y. Phase-Field Simulation with Semi-Empirical and Effective Parameters in a Case Study from PVA Membrane Syntheses by Phase Separation and Drying Process. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2021. [DOI: 10.1252/jcej.20we242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuri Uchida
- Department of Chemical Engineering and Materials Science, Doshisha University
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | | | | | - Mikio Yoshida
- Department of Chemical Engineering and Materials Science, Doshisha University
| | - Yoshiyuki Shirakawa
- Department of Chemical Engineering and Materials Science, Doshisha University
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21
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Fang P, Yang C, Shao R, Zhou L, Liu K. Ternary Phase-Field Simulations of the Skin-Sublayer Structures in Poly(vinylidene fluoride) Microporous Membranes Prepared by a Nonsolvent-Induced Phase Separation. ACS OMEGA 2021; 6:7444-7453. [PMID: 33778257 PMCID: PMC7992070 DOI: 10.1021/acsomega.0c05982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
In this paper, the existing phase-field model based on the nonsolvent-induced phase separation (NIPS) method was optimized. Two-dimensional simulations using the relevant parameters of a poly(vinylidene fluoride) (PVDF) membrane system were carried out, simulating and analyzing the effects of changes in initial concentrations, concentration fluctuations, and diffusion rates of the solvent on the skin layer and sublayer structures of the membranes. These simulations modeled the process of preparing PVDF microporous membranes by the NIPS method to better understand the structural development of PVDF microporous membranes under different conditions. It was found that dense skin layers were formed at the mass-transfer exchange interface of the PVDF microporous membranes, whose number increased with the decrease of the concentration fluctuation, which has little effect on the structure of the sublayer. The initial concentration of PVDF and the diffusion rate of the solvent had a little impact on the number of skin layers yet played a relatively large role in the formation time of the skin layers and the structure of the sublayers. Also, the validity of the model was verified by corresponding experiments. Hence, the model can be applied to other PVDF ternary membrane systems by modifying specific thermodynamic and kinetic parameters.
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Affiliation(s)
- Ping Fang
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an 710048, Shanxi, China
| | - Chaoyu Yang
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an 710048, Shanxi, China
| | - Ruihua Shao
- School
of Environmental and Chemical Engineering, Xian Polytechnic University, Xi’an 710048, Shanxi, China
| | - Lihui Zhou
- Oil
and Gas Technology Research Institute, Changqing
Oil Field Company, Xi’an 710055, Shanxi, China
| | - Kang Liu
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an 710048, Shanxi, China
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Abstract
The corneal endothelium is the innermost layer of the cornea that selectively pumps ions and metabolites and regulates the hydration level of the cornea, ensuring its transparency. Trauma or disease affecting human corneal endothelial cells (hCECs) can result in major imbalances of such transport activity with consequent deterioration or loss of vision. Since tissue transplantation from deceased donors is only available to a fraction of patients worldwide, alternative solutions are urgently needed. Cell therapy approaches, in particular by attempting to expand primary culture of hCECs in vitro, aim to tackle this issue. However, existing cell culture protocols result in limited expansion of this cell type. Recent studies in this field have shown that topographical features with specific dimensions and shapes could improve the efficacy of hCEC expansion. Therefore, potential solutions to overcome the limitation of the conventional culture of hCECs may include recreating nanometer scale topographies (nanotopographies) that mimic essential biophysical cues present in their native environment. In this review, we summarize the current knowledge and understanding of the effect of substrate topographies on the response of hCECs. Moreover, we also review the latest developments for the nanofabrication of such bio-instructive cell substrates.
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23
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Facile pore structure control of poly(vinylidene fluoride) membrane for oil/water separation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117305] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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24
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Chen W, Long N, Xiao T, Yang X. Tuning the Pore Structure of Poly(vinylidene fluoride) Membrane for Efficient Oil/Water Separation: A Novel Vapor-Induced Phase Separation Method Based on a Lower Critical Solution Temperature System. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02462] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Wei Chen
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Nengbing Long
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Tonghu Xiao
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Xing Yang
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, Leuven B-3001, Belgium
- Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
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Yeh SK, Liao ZE, Wang KC, Ho YT, Kurniawan V, Tseng PC, Tseng TW. Effect of molecular weight to the structure of nanocellular foams: Phase separation approach. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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A free-standing superhydrophobic film for highly efficient removal of water from turbine oil. Front Chem Sci Eng 2019. [DOI: 10.1007/s11705-018-1754-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Sheng L, Du Y, Zhang H, Chen Z, Pan J, Wang T, Huang X, He J. Effects of cooling process on the solid–liquid phase separation process in ultra-high-molecular-weight polyethylene/liquid paraffin blends. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02733-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Isothermal Crystallization of iPP in Environment-friendly Diluents: Effect of Binary Diluents and Crystallization Temperature on Crystallization Kinetics. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-019-2219-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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29
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Liu M, Liu SH, Skov AL, Xu ZL. Estimation of phase separation temperatures for polyethersulfone/solvent/non-solvent systems in RTIPS and membrane properties. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Xu L, Wu G, Yin B, Yang MB. Influence of annealing treatment on the structure and properties of poly(4-methyl-1-pentene)-based films and membranes. J Appl Polym Sci 2018. [DOI: 10.1002/app.46491] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Liyang Xu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan People's Republic of China
| | - Gaogao Wu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan People's Republic of China
| | - Bo Yin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan People's Republic of China
| | - Ming-bo Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan People's Republic of China
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31
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Fallahiarezoudar E, Ahmadipourroudposht M, Yusof NM, Idris A, Ngadiman NHA. 3D Biofabrication of Thermoplastic Polyurethane (TPU)/Poly-l-lactic Acid (PLLA) Electrospun Nanofibers Containing Maghemite (γ-Fe₂O₃) for Tissue Engineering Aortic Heart Valve. Polymers (Basel) 2017; 9:E584. [PMID: 30965883 PMCID: PMC6418800 DOI: 10.3390/polym9110584] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 10/24/2017] [Accepted: 11/03/2017] [Indexed: 01/04/2023] Open
Abstract
Valvular dysfunction as the prominent reason of heart failure may causes morbidity and mortality around the world. The inability of human body to regenerate the defected heart valves necessitates the development of the artificial prosthesis to be replaced. Besides, the lack of capacity to grow, repair or remodel of an artificial valves and biological difficulty such as infection or inflammation make the development of tissue engineering heart valve (TEHV) concept. This research presented the use of compound of poly-l-lactic acid (PLLA), thermoplastic polyurethane (TPU) and maghemite nanoparticle (γ-Fe₂O₃) as the potential biomaterials to develop three-dimensional (3D) aortic heart valve scaffold. Electrospinning was used for fabricating the 3D scaffold. The steepest ascent followed by the response surface methodology was used to optimize the electrospinning parameters involved in terms of elastic modulus. The structural and porosity properties of fabricated scaffold were characterized using FE-SEM and liquid displacement technique, respectively. The 3D scaffold was then seeded with aortic smooth muscle cells (AOSMCs) and biological behavior in terms of cell attachment and proliferation during 34 days of incubation was characterized using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay and confocal laser microscopy. Furthermore, the mechanical properties in terms of elastic modulus and stiffness were investigated after cell seeding through macro-indentation test. The analysis indicated the formation of ultrafine quality of nanofibers with diameter distribution of 178 ± 45 nm and 90.72% porosity. In terms of cell proliferation, the results exhibited desirable proliferation (109.32 ± 3.22% compared to the control) of cells over the 3D scaffold in 34 days of incubation. The elastic modulus and stiffness index after cell seeding were founded to be 22.78 ± 2.12 MPa and 1490.9 ± 12 Nmm², respectively. Overall, the fabricated 3D scaffold exhibits desirable structural, biological and mechanical properties and has the potential to be used in vivo.
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Affiliation(s)
- Ehsan Fallahiarezoudar
- Department of Materials, Manufacturing & Industrial Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia.
| | - Mohaddeseh Ahmadipourroudposht
- Department of Materials, Manufacturing & Industrial Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia.
| | - Noordin Mohd Yusof
- Department of Materials, Manufacturing & Industrial Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia.
| | - Ani Idris
- Department of Bioprocess Engineering, Faculty of Chemical Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia.
| | - Nor Hasrul Akhmal Ngadiman
- Department of Materials, Manufacturing & Industrial Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia.
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32
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Ruggiero F, Aruta R, Netti PA, Torino E. Confinement of a polymer chain: An entropic study by Monte Carlo method. AIChE J 2017. [DOI: 10.1002/aic.15951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Flavia Ruggiero
- Center for Advanced Biomaterials for HealthCare; IIT@CRIB, Istituto Italiano di Tecnologia; Naples Italy
- Dept. of Chemical, Materials and Industrial Production Engineering; University of Naples Federico II; Naples Italy
| | - Rosaria Aruta
- Center for Advanced Biomaterials for HealthCare; IIT@CRIB, Istituto Italiano di Tecnologia; Naples Italy
- Dept. of Chemical, Materials and Industrial Production Engineering; University of Naples Federico II; Naples Italy
| | - Paolo Antonio Netti
- Center for Advanced Biomaterials for HealthCare; IIT@CRIB, Istituto Italiano di Tecnologia; Naples Italy
- Dept. of Chemical, Materials and Industrial Production Engineering; University of Naples Federico II; Naples Italy
- Interdisciplinary Research Center of Biomaterials, University of Naples Federico II; Naples Italy
| | - Enza Torino
- Center for Advanced Biomaterials for HealthCare; IIT@CRIB, Istituto Italiano di Tecnologia; Naples Italy
- Interdisciplinary Research Center of Biomaterials, University of Naples Federico II; Naples Italy
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33
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Liu SH, Liu M, Xu ZL, Wei YM, Guo X. A novel PES-TiO2 hollow fiber hybrid membrane prepared via sol-gel process assisted reverse thermally induced phase separation (RTIPS) method. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.01.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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34
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Torino E, Aruta R, Sibillano T, Giannini C, Netti PA. Synthesis of semicrystalline nanocapsular structures obtained by Thermally Induced Phase Separation in nanoconfinement. Sci Rep 2016; 6:32727. [PMID: 27604818 PMCID: PMC5015022 DOI: 10.1038/srep32727] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 08/08/2016] [Indexed: 12/18/2022] Open
Abstract
Phase separation of a polymer solution exhibits a peculiar behavior when induced in a nanoconfinement. The energetic constraints introduce additional interactions between the polymer segments that reduce the number of available configurations. In our work, this effect is exploited in a one-step strategy called nanoconfined-Thermally Induced Phase Separation (nc-TIPS) to promote the crystallization of polymer chains into nanocapsular structures of controlled size and shell thickness. This is accomplished by performing a quench step of a low-concentrated PLLA-dioxane-water solution included in emulsions of mean droplet size <500 nm acting as nanodomains. The control of nanoconfinement conditions enables not only the production of nanocapsules with a minimum mean particle diameter of 70 nm but also the tunability of shell thickness and its crystallinity degree. The specific properties of the developed nanocapsular architectures have important implications on release mechanism and loading capability of hydrophilic and lipophilic payload compounds.
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Affiliation(s)
- Enza Torino
- Center for Advanced Biomaterials for Health Care @CRIB - Istituto Italiano di Tecnologia (IIT), Largo Barsanti e Matteucci n. 53, 80125, Napoli, Italy
- University of Naples Federico II, Interdisciplinary Research Center of Biomaterials, CRIB P.le Tecchio 80, 80125, Naples, Italy
| | - Rosaria Aruta
- Center for Advanced Biomaterials for Health Care @CRIB - Istituto Italiano di Tecnologia (IIT), Largo Barsanti e Matteucci n. 53, 80125, Napoli, Italy
- University of Naples Federico II, Department of Chemical, Materials and Industrial Production Engineering, P.le Tecchio 80, 80125, Naples, Italy
| | - Teresa Sibillano
- CNR - IC Istituto di Cristallografia, via Amendola 122/O, 70126 Bari-Italia
| | - Cinzia Giannini
- CNR - IC Istituto di Cristallografia, via Amendola 122/O, 70126 Bari-Italia
| | - Paolo A. Netti
- Center for Advanced Biomaterials for Health Care @CRIB - Istituto Italiano di Tecnologia (IIT), Largo Barsanti e Matteucci n. 53, 80125, Napoli, Italy
- University of Naples Federico II, Interdisciplinary Research Center of Biomaterials, CRIB P.le Tecchio 80, 80125, Naples, Italy
- University of Naples Federico II, Department of Chemical, Materials and Industrial Production Engineering, P.le Tecchio 80, 80125, Naples, Italy
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