1
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Pinto MMR, Sánchez AAC, da Costa SM, do Nascimento JHO, Galvão F, de Lima FS, Ferraz HG, Oliveira RC, da Costa SA. Agarose fibers with glycerol and graphene oxide and functional properties for potential application in biomaterials. Int J Biol Macromol 2023; 253:127204. [PMID: 37797856 DOI: 10.1016/j.ijbiomac.2023.127204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 09/11/2023] [Accepted: 09/30/2023] [Indexed: 10/07/2023]
Abstract
Agarose has numerous applications in biochemistry and medical textiles. This study aimed to produce agarose-graphene oxide-glycerol fibers and analyze their properties. The agarose gel was prepared by dissolving the polymer in 9:1 (v/v) dimethyl sulfoxide (DMSO): H2O, followed by spinning in an ethanol bath (1:1 (v/v) ethanol: H2O) at 20 °C. Fibers were obtained using 8 % (m/v) agarose, 2 % (m/v) glycerol, and 0.5 % and 1 % (m/v) graphene oxide (GO). The fibers had a titer of 18.32-32.49 tex and, a tenacity of 1.40-3.35 cN/tex. GO increased the thermal resistance by 79 %. The presence of glycerol and GO was confirmed and analyzed by FTIR and XPS. Fiber water absorption was decreased by 30 % with the GO addition. The weight loss increased by 55 % after glycerol addition, 51 % with GO addition, and 36 % with glycerol and GO simultaneous addition. Furthermore, GO exhibited 100 % inhibition for both S. aureus (gram-positive) and E. coli bacteria (gram-negative). Fiber F1, with only agarose, inhibited S. aureus by 34.93 %, F2 with 2 % glycerol by 48.72 %, F3 with 0.5 % GO by 63.42 %, and F4 with 2 % glycerol and 0.5 % GO by 30.65 %. However, the inhibition increased to 49.43 % with 1 % GO. The agarose fibers showed low inhibition for E. coli, ranging from 3.35 to 12.12 %.
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Affiliation(s)
- Marília Martins Rodrigues Pinto
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil
| | - Annie Alexandra Cerón Sánchez
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil
| | - Sirlene Maria da Costa
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil
| | | | - Felipe Galvão
- Departament of Textile Engineering - DET, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 300 - Lagoa Nova, Natal, RN, Brazil
| | - Fernando Soares de Lima
- Laboratory of Technical Textiles and Protection Products, Institute for Technological Research of São Paulo State, São Paulo 05508-901, SP, Brazil
| | - Humberto Gomes Ferraz
- Department of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 580, Cidade Universitária, 05508-000 São Paulo, Brazil
| | - Rodrigo Cardoso Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Brazil. Alameda Dr. Octávio Pinheiro Brisolla, 9-75, Vila Universitária, 1701290, Bauru, SP - Brazil
| | - Silgia Aparecida da Costa
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil.
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2
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Tammina SK, Priyadarshi R, Rhim JW. Carboxymethylcellulose/Agar-Based Multifunctional Films Incorporated with Zn-Doped SnO 2 Nanoparticles for Active Food Packaging Application. ACS APPLIED BIO MATERIALS 2023; 6:4728-4739. [PMID: 37946463 DOI: 10.1021/acsabm.3c00514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
SnO2 and Zn-SnO2 nanoparticles were prepared by chemical precipitation, and the rutile phase of SnO2 was confirmed through X-ray diffraction studies. X-ray photoelectron spectroscopy (XPS) confirmed the doping of SnO2 with Zn and elucidated the surface chemistry before and after doping. The average sizes of SnO2 and Zn-SnO2 nanoparticles determined using TEM were 3.96 ± 0.85 and 3.72 ± 0.9 nm, respectively. UV-visible and photoluminescence spectrophotometry were used to evaluate the optical properties of SnO2 and Zn-SnO2 nanoparticles, and their energy gaps (Eg) were 3.8 and 3.9 eV, respectively. The antibacterial activity of these nanoparticles against Salmonella enterica and Staphylococcus aureus was evaluated under dark and light conditions. Antibacterial activity was higher in light, showing the highest activity (99.5%) against S. enterica. Carboxymethylcellulose (CMC)/agar-based functional composite films were prepared by adding different amounts of SnO2 and Zn-SnO2 nanoparticles (1 and 3 wt % of polymers). The composite film showed significantly increased UV barrier properties while maintaining the mechanical properties, water vapor barrier, and transparency compared to the neat CMC/agar film. These composite films showed significant antibacterial activity; however, the Zn-SnO2-added film showed stronger antibacterial activity (99.2%) than the SnO2-added film (15%).
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Affiliation(s)
- Sai Kumar Tammina
- Department of Food and Nutrition, BioNanocomposite Research Center, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Ruchir Priyadarshi
- Department of Food and Nutrition, BioNanocomposite Research Center, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jong-Whan Rhim
- Department of Food and Nutrition, BioNanocomposite Research Center, Kyung Hee University, Seoul 02447, Republic of Korea
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3
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Javadian S, Ramezani A, Sadrpoor SM, Saeedi Dehaghani AH. The effect of chemical bond and solvent solubility parameter on stability and absorption value of functionalized PU sponge. CHEMOSPHERE 2023; 340:139936. [PMID: 37619755 DOI: 10.1016/j.chemosphere.2023.139936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 08/26/2023]
Abstract
Seawater pollution from various sources such as industrial effluents, ship washing at sea, and oil spills harm humans and the marine environment. Therefore, finding ways to eliminate this pollution is crucial. This study successfully modified a polyurethane sponge through a simple dip-coating method with functionalized graphene oxide incorporating octadecylamine and oleic acid, resulting in a hydrophobic sponge capable of absorbing crude oil and various organic solvents. Characterization analyses confirmed the synthesis. The absorption capacity of the modified sponges was examined, for example, the PU sponge has absorbed 4 g/g engine oil, while the modified GO-ODA-PU sponge has increased its absorption to 36 g/g. The GO-ODA-PU sponge demonstrated great reusability compared to the GO-OA-PU sponge owing to the strong covalent bond formed between GO and ODA, which is superior to the weak hydrogen bond formed between GO and OA. The absorption capacity of the GO-OA-PU sponge decreased by 30%. The contact angle test showed that GO-ODA-PU and GO-OA-PU sponges had contact angles of 131° and 115°, respectively. Additionally, the GO-ODA-PU sponge performed optimally for semi-polar solvents in the solubility parameter range of 18-19, with its absorption capacity reaching its maximum value. The amount of oil recycling is even possible up to 98%.
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Affiliation(s)
- Soheila Javadian
- Department of Physical Chemistry, Faculty of Basic Science, Tarbiat Modares University, Tehran, Iran.
| | - Anita Ramezani
- Department of Physical Chemistry, Faculty of Basic Science, Tarbiat Modares University, Tehran, Iran
| | - S Morteza Sadrpoor
- Department of Physical Chemistry, Faculty of Basic Science, Tarbiat Modares University, Tehran, Iran
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4
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Babaluei M, Mojarab Y, Mottaghitalab F, Farokhi M. Injectable hydrogel based on silk fibroin/carboxymethyl cellulose/agarose containing polydopamine functionalized graphene oxide with conductivity, hemostasis, antibacterial, and anti-oxidant properties for full-thickness burn healing. Int J Biol Macromol 2023; 249:126051. [PMID: 37517755 DOI: 10.1016/j.ijbiomac.2023.126051] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/03/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
Overcoming bacterial infections and promoting wound healing are significant challenges in clinical practice and fundamental research. This study developed a series of enzymatic crosslinking injectable hydrogels based on silk fibroin (SF), carboxymethyl cellulose (CMC), and agarose, with the addition of polydopamine functionalized graphene oxide (GO@PDA) to endow the hydrogel with suitable conductivity and antimicrobial activity. The hydrogels exhibited suitable gelation time, stable mechanical and rheological properties, high water absorbency, and hemostatic properties. Biocompatibility was also confirmed through various assays. After loading the antibiotic vancomycin hydrochloride, the hydrogels showed sustained release and good antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA). The fast gelation time and desirable tissue-covering ability of the hydrogels allowed for a good hemostatic effect in a rat liver trauma model. In a rat full-thickness burn wound model, the hydrogels exhibited an excellent treatment effect, leading to significantly enhanced wound closure, collagen deposition, and granulation tissue formation, as well as neovascularization and anti-inflammatory effects. In conclusion, the antibacterial electroactive injectable hydrogel dressing, with its multifunctional properties, significantly promoted the in vivo wound healing process, making it an excellent candidate for full-thickness skin wound healing.
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Affiliation(s)
| | - Yasamin Mojarab
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Fatemeh Mottaghitalab
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Farokhi
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran.
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5
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Cui C, Gao L, Dai L, Ji N, Qin Y, Shi R, Qiao Y, Xiong L, Sun Q. Hydrophobic Biopolymer-Based Films: Strategies, Properties, and Food Applications. FOOD ENGINEERING REVIEWS 2023. [DOI: 10.1007/s12393-023-09342-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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6
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Mazlan NSN, Salleh KM, Khairunnisa-Atiqah MK, Ainul Hafiza AH, Mostapha M, Ellis AV, Zakaria S. Macro-Size Regenerated Cellulose Fibre Embedded with Graphene Oxide with Antibacterial Properties. Polymers (Basel) 2023; 15:polym15010230. [PMID: 36616578 PMCID: PMC9824509 DOI: 10.3390/polym15010230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/29/2022] [Accepted: 09/06/2022] [Indexed: 01/03/2023] Open
Abstract
Macro-size regenerated cellulose fibres (RCFs) with embedded graphene oxide (GO) were fabricated by dissolving cellulose in a pre-cooled sodium hydroxide (NaOH)/urea solution and regenerated in sulphuric acid (H2SO4) coagulant. Initially, GO was found to disperse well in the cellulose solution due to intercalation with the cellulose; however, this cellulose-GO intercalation was disturbed during the regeneration process, causing agglomeration of GO in the RCF mixture. Agglomerated GO was confirmed at a higher GO content under a Dino-Lite microscope. The crystallinity index (CrI) and thermal properties of the RCFs increased with increasing GO loadings, up to 2 wt.%, and reduced thereafter. Cellulose-GO intercalation was observed at lower GO concentrations, which enhanced the crystallinity and thermal properties of the RCF-GO composite. It was shown that the GO exhibited antibacterial properties in the RCF-GO composite, with the highest bacterial inhibition against E. coli and S. aureus.
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Affiliation(s)
- Nyak Syazwani Nyak Mazlan
- Bioresource and Biorefinery Laboratory, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
| | - Kushairi Mohd Salleh
- Bioresource Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
- Renewable Biomass Transformation Cluster, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
- Correspondence: (K.M.S.); (S.Z.)
| | | | - Abdul Hair Ainul Hafiza
- Bioresource and Biorefinery Laboratory, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
- Centre of Foundation Studies, Universiti Teknologi MARA, Cawangan Selangor, Kampus Dengkil, Dengkil 43800, Malaysia
| | - Marhaini Mostapha
- Centre of Health Economic Research, Institute Health System Research, National Institute of Health Malaysia, Shah Alam 40171, Malaysia
| | - Amanda V. Ellis
- Department of Chemical Engineering, The University of Melbourne, Grattan Street, Parkville, VIC 3010, Australia
| | - Sarani Zakaria
- Bioresource and Biorefinery Laboratory, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
- Correspondence: (K.M.S.); (S.Z.)
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7
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Alderete B, Lößlein SM, Bucio Tejeda D, Mücklich F, Suarez S. Feasibility of Carbon Nanoparticle Coatings as Protective Barriers for Copper─Wetting Assessment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:15209-15219. [PMID: 36449450 DOI: 10.1021/acs.langmuir.2c02295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Copper is extensively used in a wide range of industrial and daily-life applications, varying from heat exchangers to electrical wiring. Although it is protected from oxidation by its native oxide layer, when subjected to harsh environmental conditions─such as in coastal regions─this metal can rapidly degrade. Therefore, in this study, we analyze the potential use of carbon nanoparticle coatings as protective barriers due to their intrinsic hydrophobic wetting behavior. The nanocarbon coatings were produced via electrophoretic deposition on Cu platelets and characterized via scanning electron microscopy, confocal laser scanning microscopy, and sessile drop test; the latter being the primary focus since it provides insights into the wetting behavior of the produced coatings. Among the measured coatings, graphite flakes, graphene oxide, and carbon nanotube (CNT) coatings showed superhydrophobic behavior. Based on their wetting behavior, and specifically for electrical applications, CNT coatings showed the most promising results since these coatings do not significantly impact the substrate's electrical conductivity. Although CNT agglomerates do not affect the wetting behavior of the attained coatings, the coating's thickness plays an important role. Therefore, to completely coat the substrate, the CNT coating should be sufficiently thick─above approximately 1 μm.
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Affiliation(s)
- Bruno Alderete
- Chair Functional Materials, Saarland University, Campus D3.3, Saarbrücken 66123, Germany
| | - Sarah Marie Lößlein
- Chair Functional Materials, Saarland University, Campus D3.3, Saarbrücken 66123, Germany
| | - Diana Bucio Tejeda
- International Laboratory of Environmental Electron Devices (LAIDEA), ENES Morelia UNAM, Antigua Carretera a Pátzcuaro 8701, Morelia 58190, Mexico
| | - Frank Mücklich
- Chair Functional Materials, Saarland University, Campus D3.3, Saarbrücken 66123, Germany
| | - Sebastian Suarez
- Chair Functional Materials, Saarland University, Campus D3.3, Saarbrücken 66123, Germany
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8
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Kawano T, Wang MJ, Andou Y. Surface Modification of a Regenerated Cellulose Film Using Low-Pressure Plasma Treatment with Various Reactive Gases. ACS OMEGA 2022; 7:44085-44092. [PMID: 36506144 PMCID: PMC9730310 DOI: 10.1021/acsomega.2c05499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/03/2022] [Indexed: 06/17/2023]
Abstract
There is a growing interest in the fabrication of membranes and packaging materials from natural resources for a sustainable society. A regenerated cellulose (RC) film composed solely of cellulose has outstanding advantages including biodegradability, transparency, mechanical strength, and thermal stability. To expand the application of the RC film, various surface modification methods have been proposed. However, conventional chemical methods have disadvantages such as environmental burden and difficulty in controlling the reaction. In this work, low-pressure plasma treatment, a green, solvent-free, and easily controllable approach, was performed for surface modification of the RC film. The effects of three different plasma species (O2, N2, and CF4) and treatment conditions on the surface properties of RC films were investigated based on water contact angle measurements, chemical composition analysis, and surface topography. O2 and N2 plasma treatment slightly enhanced the surface wettability of RC films due to the etching by the plasma reactive species and the formation of new hydrophilic functional groups. In CF4 plasma treatments, the hydrophobic surface with a contact angle of 120.6° was obtained in a short treatment time (60 s) owing to the deposition of fluorocarbon groups on the surface. However, the treated surface in a longer reaction time resulted in increased wettability due to the diffusion and degradation of fluorine-containing bonds. The new insights could be valuable for further studies of surface modification and functionalization of RC films.
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Affiliation(s)
- Tessei Kawano
- Department
of Life Science and Systems Engineering, Graduate School of Life Science
and Systems Engineering, Kyushu Institute
of Technology, 2-4 Hibikino Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan
| | - Meng-Jiy Wang
- Department
of Chemical Engineering, National Taiwan
University of Science and Technology, 43, Keelung Rd., Sec. 4, Taipei 106, Taiwan
| | - Yoshito Andou
- Department
of Life Science and Systems Engineering, Graduate School of Life Science
and Systems Engineering, Kyushu Institute
of Technology, 2-4 Hibikino Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan
- Collaborative
Research Centre for Green Materials on Environmental Technology, Kyushu Institute of Technology, 1-1 Sensui-chou, Tobata-ku, Kitakyushu, Fukuoka 804-8550, Japan
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9
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Transparent thioether-ester-bridged polysilsesquioxane coating with enhanced water vapor barrier performance. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Investigating the performance of functionalized and pristine graphene oxide impregnated Nexar™ nanocomposite membranes for PEM fuel cell. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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11
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Garima, Sachdev A, Matai I. An electrochemical sensor based on cobalt oxyhydroxide nanoflakes/reduced graphene oxide nanocomposite for detection of illicit drug-clonazepam. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Thermal, mechanical and water barrier properties of graphene oxide/polyvinyl alcohol/polyol composite films. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100456] [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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13
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Recycling of Waste Cotton Textile Containing Elastane Fibers through Dissolution and Regeneration. MEMBRANES 2022; 12:membranes12040355. [PMID: 35448324 PMCID: PMC9031234 DOI: 10.3390/membranes12040355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/17/2022] [Accepted: 03/22/2022] [Indexed: 12/10/2022]
Abstract
Increasing utilization of textiles has raised concern regarding the environmental impact brought by the textile manufacturing process and disposal of waste textiles. In our previous work, the dissolution of cotton waste through different solvent systems was demonstrated. Herein, this study aimed to further investigate the recycling of waste cotton–elastane fabrics using H2SO4, NaOH/urea, and LiCl/DMAc solvent systems. The structure of regenerated films was characterized with Fourier transform infrared spectroscopy and scanning electron microscopy, and the properties of the regenerated films, including transparency, mechanical properties, water vapor permeability, and thermal stability, were investigated. The results revealed that all solvent systems could convert the waste cotton–elastane fabrics into regenerated films with the existence of different forms of elastane components. The elastane fibers were partially hydrolyzed in H2SO4 solvent and reduced the transparency of regenerated films, but they were well retained in NaOH/urea solvent and interrupted the structure of regenerated cellulose films. It is worth noting that the elastane fibers were completely dissolved in LiCl/DMAc solvent and formed a composite structure with cellulose, leading to obviously improved tensile strength (from 51.00 to 121.63 MPa) and water barrier property (from 3.50 × 10−7 to 1.03 × 10−7 g m−1 h−1 Pa−1). Therefore, this work demonstrates the possibility to directly recycle waste cotton–elastane fabrics through dissolution and regeneration, and the resultant films have potential applications as packaging materials.
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Sideri IK, Tagmatarchis N. Chemically modified carbon nanostructures and 2D nanomaterials for fabrics performing under operational tension and extreme environmental conditions. MATERIALS HORIZONS 2021; 8:3187-3200. [PMID: 34731229 DOI: 10.1039/d1mh01077h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The extensive research on carbon nanostructures and 2D nanomaterials will come to fruition once these materials steadily join everyday-life applications. Their chemical functionalization unlocks their potential as carriers of customized properties and counterparts to fabric fibers. The scope of the current review covers the chemical modification of carbon nanostructures and 2D nanomaterials for hybrid fabrics with enhanced qualities against critical operational and weather conditions, such as antibacterial, flame retardant, UV resistant, water repellent and high air and water vapor permeability activities.
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Affiliation(s)
- Ioanna K Sideri
- Theoretical and Physical Chemistry, Institute National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece.
| | - Nikos Tagmatarchis
- Theoretical and Physical Chemistry, Institute National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece.
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15
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Ahmed A, Adak B, Faruk MO, Mukhopadhyay S. Nanocellulose Coupled 2D Graphene Nanostructures: Emerging Paradigm for Sustainable Functional Applications. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01830] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Abbas Ahmed
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
- Department of Textile and Fiber Engineering, Indian Institute of Technology, New Delhi 110016, India
- National Institute of Textile Engineering and Research, University of Dhaka, Dhaka 1000, Bangladesh
| | - Bapan Adak
- Product Development Department, Kusumgar Corporates Pvt. Ltd., Vapi, Valsad, Gujarat 396195, India
| | - Md. Omar Faruk
- National Institute of Textile Engineering and Research, University of Dhaka, Dhaka 1000, Bangladesh
| | - Samrat Mukhopadhyay
- Department of Textile and Fiber Engineering, Indian Institute of Technology, New Delhi 110016, India
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16
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Yang Z, Guo H, Kang C, Gao L. Enhanced gas barrier properties of polymer substrates for flexible OLEDs by adjusting the backbone rigidity and incorporating 2D nanosheets. NEW J CHEM 2021. [DOI: 10.1039/d1nj01671g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Ultra-high Tg, low CTE and great ductility as well as a high barrier performance are embodied in PI nanocomposite films.
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Affiliation(s)
- Zhenghui Yang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Haiquan Guo
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Chuanqing Kang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Lianxun Gao
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
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18
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Garg D, Matai I, Garg A, Sachdev A. Tragacanth Hydrogel Integrated CeO
2
@rGO Nanocomposite as Reusable Photocatalysts for Organic Dye Degradation. ChemistrySelect 2020. [DOI: 10.1002/slct.202002041] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Deepa Garg
- Central Scientific Instruments Organization (CSIR-CSIO) Chandigarh 160030 India
- Academy of Scientific and Innovative Research CSIR-CSIO Chandigarh 160030 India
| | - Ishita Matai
- Central Scientific Instruments Organization (CSIR-CSIO) Chandigarh 160030 India
- Academy of Scientific and Innovative Research CSIR-CSIO Chandigarh 160030 India
| | - Anjali Garg
- Central Scientific Instruments Organization (CSIR-CSIO) Chandigarh 160030 India
| | - Abhay Sachdev
- Central Scientific Instruments Organization (CSIR-CSIO) Chandigarh 160030 India
- Academy of Scientific and Innovative Research CSIR-CSIO Chandigarh 160030 India
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19
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Achagri G, Essamlali Y, Amadine O, Majdoub M, Chakir A, Zahouily M. Surface modification of highly hydrophobic polyester fabric coated with octadecylamine-functionalized graphene nanosheets. RSC Adv 2020; 10:24941-24950. [PMID: 35517480 PMCID: PMC9055142 DOI: 10.1039/d0ra02655g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 06/19/2020] [Indexed: 11/29/2022] Open
Abstract
This study focuses on the design of highly hydrophobic polyester fabrics (PET) coated with organophilic graphene nanosheets (G-ODA) through a simple, cost-effective and scalable coating method. The organophilic graphene oxide was successfully synthesized by covalently grafting a long chain fatty amine on its surface and was fully characterized by various physicochemical techniques. G-ODA was coated at different loadings onto the PET fabric ranging from 1 to 7 wt% to produce uniformly dispersed PET@G-ODA fabrics with multifunctional performances. FTIR has confirmed the formation of strong interfacial interaction between the PET and G-ODA functional groups. Moreover, the produced PET@G-ODA fabrics resulted in achieving enhanced thermal stability as well as excellent water repellency compared to the pristine PET. Water contact angle measurements showed a tremendous enhancement of surface hydrophobicity up to 148° with 7 wt% loading of G-ODA. Tensile strength tests revealed that our fabric exhibited excellent mechanical properties compared to neat PET. In addition, the designed PET@G-ODA fabrics demonstrated excellent oil/water separation efficiency for different oil/water mixtures. The obtained results are very promising in terms of designing and producing functional PET fabrics with improved thermal and surface proprieties. This study focuses on the design of highly hydrophobic polyester fabrics (PET) coated with organophilic graphene nanosheets (G-ODA) through a simple, cost-effective and scalable coating method.![]()
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Affiliation(s)
- Ghizlane Achagri
- Laboratoire de Matériaux, Catalyse et Valorisation des Ressources Naturelles, URAC 24, FST, University Hassan II-Casablanca Morroco
| | - Younes Essamlali
- VARENA Center, MAScIR Foundation, Rabat Design Rue Mohamed El Jazouli, Medinat El Irfane 10100-Rabat Morroco
| | - Othmane Amadine
- VARENA Center, MAScIR Foundation, Rabat Design Rue Mohamed El Jazouli, Medinat El Irfane 10100-Rabat Morroco
| | - Mohamed Majdoub
- VARENA Center, MAScIR Foundation, Rabat Design Rue Mohamed El Jazouli, Medinat El Irfane 10100-Rabat Morroco
| | - Achraf Chakir
- Laboratoire de Matériaux, Catalyse et Valorisation des Ressources Naturelles, URAC 24, FST, University Hassan II-Casablanca Morroco
| | - Mohamed Zahouily
- Laboratoire de Matériaux, Catalyse et Valorisation des Ressources Naturelles, URAC 24, FST, University Hassan II-Casablanca Morroco.,VARENA Center, MAScIR Foundation, Rabat Design Rue Mohamed El Jazouli, Medinat El Irfane 10100-Rabat Morroco
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