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Pakolpakçıl A, Kılıç A, Draczynski Z. Optimization of the Centrifugal Spinning Parameters to Prepare Poly(butylene succinate) Nanofibers Mats for Aerosol Filter Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:3150. [PMID: 38133047 PMCID: PMC10745326 DOI: 10.3390/nano13243150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 11/29/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023]
Abstract
Air pollution is becoming a serious issue because it negatively impacts the quality of life. One of the first most useful self-defense approaches against air pollution are face masks. Typically made of non-renewable petroleum-based polymers, these masks are harmful to the environment, and they are mostly disposable. Poly(butylene succinate) (PBS) is regarded as one of the most promising materials because of its exceptional processability and regulated biodegradability in a range of applications. In this regard, nanofiber-based face masks are becoming more and more popular because of their small pores, light weight, and excellent filtration capabilities. Centrifugal spinning (CS) provides an alternative method for producing nanofibers from various materials at high speeds and low costs. This current study aimed to investigate the effect of processing parameters on the resultant PBS fiber morphology. Following that, the usability of PBS nonwoven as a filter media was investigated. The effects of solution concentration, rotating speed, and needle size have been examined using a three-factorial Box-Behnken experimental design. The results revealed that PBS concentration had a substantial influence on fiber diameter, with a minimum fiber diameter of 172 nm attained under optimum production conditions compared to the anticipated values of 166 nm. It has been demonstrated that the desired function and the Box-Behnken design are useful instruments for predicting the process parameters involved in the production of PBS nanofibers. PBS filters can achieve an excellent efficiency of more than 98% with a pressure drop of 238 Pa at a flow rate of 85 L/min. The disposable PBS filter media was able to return to nature after use via hydrolysis processes. The speed and cost-effectiveness of the CS process, as well as the environmentally benign characteristics of the PBS polymer, may all contribute considerably to the development of new-age filters.
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Affiliation(s)
- Ayben Pakolpakçıl
- Faculty of Textile Technologies and Design, İstanbul Technical University, İnönü Cad, No 65 Gümüşsuyu, Beyoğlu, 34421 Istanbul, Türkiye;
- Faculty of Art and Design, İstanbul Nişantaşı University, Maslak Mahallesi, Taşyoncası Sok, No 1V-1Y, Sarıyer, 34398 Istanbul, Türkiye
| | - Ali Kılıç
- Faculty of Textile Technologies and Design, İstanbul Technical University, İnönü Cad, No 65 Gümüşsuyu, Beyoğlu, 34421 Istanbul, Türkiye;
| | - Zbigniew Draczynski
- Institute of Materials Science of Textiles and Polymer Composites, Lodz University of Technology, 116 Zeromskiego Street, 90-924 Lodz, Poland;
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2
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Barhoum A, Deshmukh K, García-Betancourt ML, Alibakhshi S, Mousavi SM, Meftahi A, Sabery MSK, Samyn P. Nanocelluloses as sustainable membrane materials for separation and filtration technologies: Principles, opportunities, and challenges. Carbohydr Polym 2023; 317:121057. [PMID: 37364949 DOI: 10.1016/j.carbpol.2023.121057] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 06/28/2023]
Abstract
Membrane technology is of great interest in various environmental and industrial applications, where membranes are used to separate different mixtures of gas, solid-gas, liquid-gas, liquid-liquid, or liquid-solid. In this context, nanocellulose (NC) membranes can be produced with predefined properties for specific separation and filtration technologies. This review explains the use of nanocellulose membranes as a direct, effective, and sustainable way to solve environmental and industrial problems. The different types of nanocellulose (i.e., nanoparticles, nanocrystals, nanofibers) and their fabrication methods (i.e., mechanical, physical, chemical, mechanochemical, physicochemical, and biological) are discussed. In particular, the structural properties of nanocellulose membranes (i.e., mechanical strength, interactions with various fluids, biocompatibility, hydrophilicity, and biodegradability) are reviewed in relation to membrane performances. Advanced applications of nanocellulose membranes in reverse osmosis (RO), microfiltration (MF), nanofiltration (NF), and ultrafiltration (UF) are highlighted. The applications of nanocellulose membranes offer significant advantages as a key technology for air purification, gas separation, and water treatment, including suspended or soluble solids removal, desalination, or liquid removal using pervaporation membranes or electrically driven membranes. This review will cover the current state of research, future prospects, and challenges in commercializing nanocellulose membranes with respect to membrane applications.
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Affiliation(s)
- Ahmed Barhoum
- NanoStruc Research Group, Chemistry Department, Faculty of Science, Helwan University, Helwan 11795, Egypt; School of Chemical Sciences, Dublin City University, D09 V209 Dublin, Ireland.
| | - Kalim Deshmukh
- New Technologies - Research Center, University of West Bohemia, Plzeň 30100, Czech Republic
| | | | | | | | - Amin Meftahi
- Department of Polymer and Textile Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran; Nanotechnology Research Center, Islamic Azad University, South Tehran Branch, Tehran, Iran
| | | | - Pieter Samyn
- SIRRIS - Department of Innovations in Circular Economy, Wetenschapspark 3, B-3590 Diepnbeek, Belgium
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3
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Kántor J, Farmos RL, Gergely AL. Optimization of Oil Sorbent Thermoplastic Elastomer Microfiber Production by Centrifugal Spinning. Polymers (Basel) 2023; 15:3368. [PMID: 37631425 PMCID: PMC10457860 DOI: 10.3390/polym15163368] [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: 07/17/2023] [Revised: 08/03/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Fibrous structures are promising candidates for oil-water separation applications. In this study, we have produced poly(styrene-b-isobutylene-b-styrene) thermoplastic elastomeric fibers with the centrifugal spinning fiber production method. The optimal fiber production conditions were achieved when using a 25% w/w solution concentration in an 80/20 tetrahydrofuran/toluene (w/w) solvent system at 8000 rpm rotational speed. The produced fibers were bead-free and smooth-surfaced with a diameter of 3.68 µm. The produced fibers were highly hydrophobic and oleophilic, suggested by a water contact angle of 129° and the instantaneous absorption of the oil droplet. The oil absorption study showed fast absorption kinetics with 94% relative oil uptake after 1 min and a maximum of 16.5 g sunflower oil/g fiber. The results suggest that polyisobutylene-based thermoplastic elastomers could be promising alternatives in oil absorption applications.
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Affiliation(s)
| | | | - Attila Levente Gergely
- Department of Mechanical Engineering, Faculty of Technical and Human Sciences, Sapientia Hungarian University of Transylvania, 540485 Târgu-Mureş, Romania; (J.K.); (R.L.F.)
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4
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Bitay E, Gergely AL, Kántor J, Szabó ZI. Evaluation of Lapatinib-Loaded Microfibers Prepared by Centrifugal Spinning. Polymers (Basel) 2022; 14:polym14245557. [PMID: 36559924 PMCID: PMC9781951 DOI: 10.3390/polym14245557] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/12/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
Lapatinib (Lap) is a lypophilic drug frequently used in cancer treatment; however, due to its limited solubility and permeability, achieving therapeutic dose through oral administration proves to be a challenge. There are various methods for enhancing the solubility of Lap and other similar drugs, one being the preparation of amorphous solid dispersions (ASD). In this study, a Lap-loaded polyvinylpyrrolidone (PVP) fiber mat was created with centrifugal spinning from a PVP/Lap solution in dimethyl formamide and ethanol. The production rate was 12.2 g/h dry fibers, and the fibers had an average thickness of 2.55 ± 0.92 μm. In the differential scanning calorimetry (DSC) thermogram of the fiber mat, the melting peak of the crystalline Lap was not visible, suggesting that Lap was in an amorphous state. A dissolution study was carried out in 0.2 M phosphate buffer saline solution at 37 °C. UV spectrophotometry data indicated that in the sample containing the fiber mat, the Lap concentration was 332 μg/mL (66%) in 10 min, decreasing to 227 μg/mL by 45 min. Meanwhile the crystalline Lap formed a 30-40 μg/mL (6-8%) solution in 5 min, maintaining that concentration. We conclude that centrifugal spinning can be an effective and easy method to produce ASDs.
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Affiliation(s)
- Enikő Bitay
- Department of Mechanical Engineering, Faculty of Technical and Human Sciences, Sapientia Hungarian University of Transylvania, Târgu-Mureş, Târgu-Mureş/Corunca, Calea Sighișoarei nr. 2., 540485 Târgu-Mureş, Romania
- Research Institute of the Transylvanian Museum Society, 2–4 Napoca, 400009 Cluj, Romania
| | - Attila Levente Gergely
- Department of Mechanical Engineering, Faculty of Technical and Human Sciences, Sapientia Hungarian University of Transylvania, Târgu-Mureş, Târgu-Mureş/Corunca, Calea Sighișoarei nr. 2., 540485 Târgu-Mureş, Romania
- Correspondence: ; Tel.: +40-759097051
| | - József Kántor
- Department of Mechanical Engineering, Faculty of Technical and Human Sciences, Sapientia Hungarian University of Transylvania, Târgu-Mureş, Târgu-Mureş/Corunca, Calea Sighișoarei nr. 2., 540485 Târgu-Mureş, Romania
| | - Zoltán-István Szabó
- Department of Drugs Industry and Pharmaceutical Management, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, Gh. Marinescu 38, 540485 Târgu-Mureş, Romania
- Sz-imfidum Ltd., 525401 Lunga, Romania
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5
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Li Z, Cui Z, Zhao L, Hussain N, Zhao Y, Yang C, Jiang X, Li L, Song J, Zhang B, Cheng Z, Wu H. High-throughput production of kilogram-scale nanofibers by Kármán vortex solution blow spinning. SCIENCE ADVANCES 2022; 8:eabn3690. [PMID: 35294239 PMCID: PMC8926350 DOI: 10.1126/sciadv.abn3690] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/24/2022] [Indexed: 05/25/2023]
Abstract
The interaction between gas flow and liquid flow, governed by fluid dynamic principles, is of substantial importance in both fundamental science and practical applications. For instance, a precisely designed gas shearing on liquid solution may lead to efficacious production of advanced nanomaterials. Here, we devised a needleless Kármán vortex solution blow spinning system that uses a roll-to-roll nylon thread to deliver spinning solution, coupled with vertically blowing airflow to draw high-quality nanofibers with large throughput. A wide variety of nanofibers including polymers, carbon, ceramics, and composites with tunable diameters were fabricated at ultrahigh rates. The system can be further upgraded from single thread to multiple parallel threads and to the meshes, boosting the production of nanofibers to kilogram scale without compromising their quality.
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Affiliation(s)
- Ziwei Li
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Zhiwen Cui
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Lihao Zhao
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Naveed Hussain
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Yanzhen Zhao
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Cheng Yang
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Xinyu Jiang
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Lei Li
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Jianan Song
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Baopu Zhang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Zekun Cheng
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Hui Wu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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6
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Preparation and Characterization of Doxycycline-Loaded Electrospun PLA/HAP Nanofibers as a Drug Delivery System. MATERIALS 2022; 15:ma15062105. [PMID: 35329557 PMCID: PMC8951507 DOI: 10.3390/ma15062105] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/02/2022] [Accepted: 03/08/2022] [Indexed: 02/05/2023]
Abstract
The present study aimed to prepare nanofibers by electrospinning in the system polylactic acid-hydroxyapatite-doxycycline (PLA-HAP-Doxy) to be used as a drug delivery vehicle. Two different routes were employed for the preparation of Doxy-containing nanofibers: Immobilization on the electrospun mat’s surface and encapsulation in the fiber structure. The nanofibers obtained by Doxy encapsulation were characterized using Fourier transform infrared (FTIR) spectroscopy, thermogravimetric (TG) and differential thermal analyses (DTA) and scanning electron microscopy (SEM). The adsorption properties of pure PLA and PLA-HAP nanofibers were investigated for solutions with different Doxy concentrations (3, 7 and 12 wt%). Moreover, the desorption properties of the active substance were tested in two different fluids, simulated body fluid (SBF) and phosphate buffer solution (PBS), to evidence the drug release properties. In vitro drug release studies were performed and different drug release kinetics were assessed to confirm the use of these nanofiber materials as efficient drug delivery vehicles. The obtained results indicate that the PLA-HAP-Doxy is a promising system for biomedical applications, the samples with 3 and 7 wt% of Doxy-loaded PLA-HAP nanofibers prepared by physical adsorption are the most acceptable membranes to provide prolonged release in PBS/SBF rather than an immediate release of Doxy.
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7
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Ngoc Doan H, Tagami S, Phong Vo P, Negoro M, Sakai W, Tsutsumi N, Kanamori K, Kinashi K. Scalable Fabrication of Cross-linked Porous Centrifugally Spun Polyimide Fibers for Thermal Insulation Application. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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8
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Zhang L, Narita C, Himeda Y, Honma H, Yamada K. Development of highly oil-absorbent polylactic-acid microfibers with a nanoporous structure via simple one-step centrifugal spinning. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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Merchiers J, Reddy NK, Sharma V. Extensibility-Enriched Spinnability and Enhanced Sorption and Strength of Centrifugally Spun Polystyrene Fiber Mats. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jorgo Merchiers
- Institute for Materials research (IMO-IMOMEC), Hasselt University, B-3590 Diepenbeek, Belgium
- IMEC vzw-Division IMOMEC, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
| | - Naveen K. Reddy
- Institute for Materials research (IMO-IMOMEC), Hasselt University, B-3590 Diepenbeek, Belgium
- IMEC vzw-Division IMOMEC, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
| | - Vivek Sharma
- Department of Chemical Engineering, University of Illinois Chicago, Chicago, Illinois 60607, United States
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10
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Banerji A, Jin K, Mahanthappa MK, Bates FS, Ellison CJ. Porous Fibers Templated by Melt Blowing Cocontinuous Immiscible Polymer Blends. ACS Macro Lett 2021; 10:1196-1203. [PMID: 35549054 DOI: 10.1021/acsmacrolett.1c00456] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a scalable melt blowing method for producing porous nonwoven fibers from model cocontinuous polystyrene/high-density polyethylene polymer blends. While conventional melt compounding of cocontinuous blends typically produces domain sizes ∼1-10 μm, melt blowing these blends into fibers reduces those dimensions up to 35-fold and generates an interpenetrating domain structure. Inclusion of ≤1 wt % of a block copolymer compatibilizer in these blends crucially enables access to smaller domain sizes in the fibers by minimizing thermodynamically-driven blend coarsening inherent to cocontinuous blends. Selective solvent extraction of the sacrificial polymer phase yielded a network of porous channels within the fibers. Fiber surfaces also exhibited pores that percolate into the fiber interior, signifying the continuous and interconnected nature of the final structure. Pore sizes as small as ∼100 nm were obtained, suggesting potential applications of these porous nonwovens that rely on their high surface areas, including various filtration modules.
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Affiliation(s)
- Aditya Banerji
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Kailong Jin
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
- Department of Chemical Engineering, Arizona State University, Tempe, Arizona 85287, United States
| | - Mahesh K. Mahanthappa
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Frank S. Bates
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Christopher J. Ellison
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
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11
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Nuamcharoen P, Kobayashi T, Potiyaraj P. Influence of volatile solvents and mixing ratios of binary solvent systems on morphology and performance of electrospun poly(vinylidene fluoride) nanofibers. POLYM INT 2021. [DOI: 10.1002/pi.6218] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Praewpanit Nuamcharoen
- Department of Energy and Environment Science Nagaoka University of Technology Nagaoka Japan
| | - Takaomi Kobayashi
- Department of Energy and Environment Science Nagaoka University of Technology Nagaoka Japan
| | - Pranut Potiyaraj
- Department of Materials Science, Faculty of Science Chulalongkorn University Bangkok Thailand
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12
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Baggio A, Doan HN, Vo PP, Kinashi K, Sakai W, Tsutsumi N, Fuse Y, Sangermano M. Chitosan-Functionalized Recycled Polyethylene Terephthalate Nanofibrous Membrane for Sustainable On-Demand Oil-Water Separation. GLOBAL CHALLENGES (HOBOKEN, NJ) 2021; 5:2000107. [PMID: 33854791 PMCID: PMC8025399 DOI: 10.1002/gch2.202000107] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/07/2020] [Indexed: 05/14/2023]
Abstract
The preservation of marine ecosystems is one of the most severe challenges at present. In particular, oil-water separation from oil spills and oily wastewater is important. For this reason, a low-cost, effective, and sustainable polymeric solution is in high demand. In this work, a controlled-wettability membrane for selective separation of oil-water mixtures and emulsions is developed. The nanofibrous membrane is prepared via a facile and cost-effective electrospinning technique using environmentally sustainable materials, such as recycled polyethylene terephthalate and chitosan. The effect of different concentrations of chitosan on the morphology, chemical composition, mechanical properties, wettability, and separation performance of the membrane is evaluated. The membranes exhibited underoil superhydrophobic and underwater superoleophobic behavior, which is essential to perform the selective separation. In fact, the designed filter has competitive antifouling properties (oil intrusion pressure > 45 kPa) and showed high heavy- and light-oil/water separation efficiencies (>95%) both for emulsions and immiscible mixtures.
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Affiliation(s)
- Andrea Baggio
- Master's Program of Innovative MaterialsKyoto Institute of TechnologyMatsugasaki, SakyoKyoto606‐8585Japan
- Master's Program of Materials EngineeringPolitecnico di TorinoCorso Duca degli Abruzzi 24Torino10129Italy
| | - Hoan N. Doan
- Doctor's Program of Materials ChemistryKyoto Institute of TechnologyMatsugasaki, SakyoKyoto606‐8585Japan
| | - Phu P. Vo
- Doctor's Program of Materials ChemistryKyoto Institute of TechnologyMatsugasaki, SakyoKyoto606‐8585Japan
| | - Kenji Kinashi
- Faculty of Materials Science and EngineeringKyoto Institute of TechnologyMatsugasaki, SakyoKyoto606‐8585Japan
| | - Wataru Sakai
- Faculty of Materials Science and EngineeringKyoto Institute of TechnologyMatsugasaki, SakyoKyoto606‐8585Japan
| | - Naoto Tsutsumi
- Faculty of Materials Science and EngineeringKyoto Institute of TechnologyMatsugasaki, SakyoKyoto606‐8585Japan
| | - Yasuro Fuse
- Center of Environmental ScienceKyoto Institute of TechnologyMatsugasaki, SakyoKyoto606‐8585Japan
| | - Marco Sangermano
- Department of Applied Science and Technology (DISAT)Politecnico di TorinoCorso Duca degli Abruzzi 24Torino10129Italy
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Affiliation(s)
- Bülin Atıcı
- Nano-Science and Nano-Engineering Program, Graduate School of Science, Engineering and Technology, Istanbul Technical University, Istanbul, Turkey
| | - Cüneyt H. Ünlü
- Chemistry, Istanbul Technical University, Turkey, Istanbul
| | - Meltem Yanilmaz
- Nano-Science and Nano-Engineering Program, Graduate School of Science, Engineering and Technology, Istanbul Technical University, Istanbul, Turkey
- Textile Engineering, Istanbul Technical University, Istanbul, Turkey
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14
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Kwak BE, Yoo HJ, Lee E, Kim DH. Large-Scale Centrifugal Multispinning Production of Polymer Micro- and Nanofibers for Mask Filter Application with a Potential of Cospinning Mixed Multicomponent Fibers. ACS Macro Lett 2021; 10:382-388. [PMID: 34192093 PMCID: PMC7901235 DOI: 10.1021/acsmacrolett.0c00829] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 02/10/2021] [Indexed: 01/08/2023]
Abstract
Recently, the polymer nanofiber web is in high demand as a strong barrier against harmful particles due to its high capture efficiency and strong droplet-blocking ability. As an advanced spinning technique, the centrifugal multispinning system was designed by sectioning a rotating disk into triple subdisks, showing mass producibility of polymer nanofibers with cospinning ability. Using the system, gram-scale production of polystyrene (PS), poly(methyl methacrylate), and polyvinylpyrrolidone (PVP) was demonstrated, showing a possibility for versatile use of the system. Moreover, a high production rate of ∼25 g/h for PS nanofibers was achieved, which is ∼300× higher than that of the usual electrospinning process. Utilizing the cospinning ability, we controlled the contact angle and electrostatic charge of the multicomponent nanofiber web by adjusting the relative amounts of PS and PVP fibers, showing a potential for functional textile application. With the fabricated PS nanofiber-based filters, we achieved high capture efficiency up to ∼97% with outstanding droplet-blocking ability.
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Affiliation(s)
- Byeong Eun Kwak
- Department of Chemical and Biomolecular Engineering,
Korea Advanced Institute of Science and Technology (KAIST),
291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hyo Jeong Yoo
- Department of Chemical and Biomolecular Engineering,
Korea Advanced Institute of Science and Technology (KAIST),
291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Eungjun Lee
- Department of Chemical and Biomolecular Engineering,
Korea Advanced Institute of Science and Technology (KAIST),
291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Do Hyun Kim
- Department of Chemical and Biomolecular Engineering,
Korea Advanced Institute of Science and Technology (KAIST),
291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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15
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Zhekenov T, Dikhanbayeva D, Ospanova S, Rojas-Solórzano L. Enhanced migration and sequestration of food oily additives into polystyrene oleophilic-hydrophobic-walled containers. BRAZILIAN JOURNAL OF FOOD TECHNOLOGY 2021. [DOI: 10.1590/1981-6723.24420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract Currently, the high natural oil content in the regular daily diet of a significant segment of the global population has raised deep concern for health authorities worldwide. One example can be soups, which are liquid foods that usually contain high salt levels besides the fat released by the ingredients during the cooking process and the oil that is directly added. This investigation focused on assessing a novel technique to regulate the oil content in soups after being served for consumption. The research aimed to examine the potential reduction of fat in soups by using a non-invasive capillary mechanism created by microchanneling used on the surface of a polystyrene oleophilic/hydrophobic wall in contact with the food to enhance the migration and further sequestration of a fraction of the freely floating oil in these meals.
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16
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Huang X, Zhang S, Xiao W, Luo J, Li B, Wang L, Xue H, Gao J. Flexible PDA@ACNTs decorated polymer nanofiber composite with superhydrophilicity and underwater superoleophobicity for efficient separation of oil-in-water emulsion. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118500] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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17
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X-ray Visualization and Quantification Using Fibrous Color Dosimeter Based on Leuco Dye. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10113798] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A polystyrene (PS)-based fibrous color dosimeter, comprising a color former based on 2-(phenylamino)-6-(dipentylamino)-3-methylspiro[9H-xanthene-9,3′-phthalide] (Black305) fluoran leuco dye and a 2-(4-methoxystyryl)-4,6-bis(trichloromethyl)-1,3,5-triazine (MBTT) photoacid generator, was developed for visual detection of X-ray doses of 15 Gy and higher. The composite fiber was produced by using a centrifugal spinning method, and the obtained composite fiber exhibited a stable and uniform morphology with a fiber diameter of 10 μm or less and had sufficient mechanical strength. As an example of practical application, we successfully processed the composite fiber into an apron and clearly and visually confirmed that the color change from yellow to black occurs on the surface of the fabric under X-ray exposure.
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Merchiers J, Meurs W, Deferme W, Peeters R, Buntinx M, Reddy NK. Influence of Polymer Concentration and Nozzle Material on Centrifugal Fiber Spinning. Polymers (Basel) 2020; 12:E575. [PMID: 32150836 PMCID: PMC7182933 DOI: 10.3390/polym12030575] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 11/17/2022] Open
Abstract
Centrifugal fiber spinning has recently emerged as a highly promising alternative technique for the production of nonwoven, ultrafine fiber mats. Due to its high production rate, it could provide a more technologically relevant fiber spinning technique than electrospinning. In this contribution, we examine the influence of polymer concentration and nozzle material on the centrifugal spinning process and the fiber morphology. We find that increasing the polymer concentration transforms the process from a beaded-fiber regime to a continuous-fiber regime. Furthermore, we find that not only fiber diameter is strongly concentration-dependent, but also the nozzle material plays a significant role, especially in the continuous-fiber regime. This was evaluated by the use of a polytetrafluoroethylene (PTFE) and an aluminum nozzle. We discuss the influence of polymer concentration on fiber morphology and show that the choice of nozzle material has a significant influence on the fiber diameter.
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Affiliation(s)
- Jorgo Merchiers
- Hasselt University, Institute for Materials Research (IMO-IMOMEC), B-3590 Diepenbeek, Belgium; (J.M.); (W.M.); (W.D.); (R.P.); (M.B.)
- IMEC vzw-Division IMOMEC, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
| | - Willem Meurs
- Hasselt University, Institute for Materials Research (IMO-IMOMEC), B-3590 Diepenbeek, Belgium; (J.M.); (W.M.); (W.D.); (R.P.); (M.B.)
- IMEC vzw-Division IMOMEC, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
| | - Wim Deferme
- Hasselt University, Institute for Materials Research (IMO-IMOMEC), B-3590 Diepenbeek, Belgium; (J.M.); (W.M.); (W.D.); (R.P.); (M.B.)
- IMEC vzw-Division IMOMEC, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
| | - Roos Peeters
- Hasselt University, Institute for Materials Research (IMO-IMOMEC), B-3590 Diepenbeek, Belgium; (J.M.); (W.M.); (W.D.); (R.P.); (M.B.)
- IMEC vzw-Division IMOMEC, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
| | - Mieke Buntinx
- Hasselt University, Institute for Materials Research (IMO-IMOMEC), B-3590 Diepenbeek, Belgium; (J.M.); (W.M.); (W.D.); (R.P.); (M.B.)
- IMEC vzw-Division IMOMEC, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
| | - Naveen K. Reddy
- Hasselt University, Institute for Materials Research (IMO-IMOMEC), B-3590 Diepenbeek, Belgium; (J.M.); (W.M.); (W.D.); (R.P.); (M.B.)
- IMEC vzw-Division IMOMEC, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
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