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Dmitrieva E, Grushevenko E, Razlataya D, Golubev G, Rokhmanka T, Anokhina T, Bazhenov S. Alginate Ag for Composite Hollow Fiber Membrane: Formation and Ethylene/Ethane Gas Mixture Separation. MEMBRANES 2022; 12:1090. [PMID: 36363645 PMCID: PMC9696779 DOI: 10.3390/membranes12111090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/18/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Membranes based on natural polymers, in particular alginate, are of great interest for various separation tasks. In particular, the possibility of introducing silver ions during the crosslinking of sodium alginate makes it possible to obtain a membrane with an active olefin transporter. In this work, the creation of a hollow fiber composite membrane with a selective layer of silver alginate is proposed for the first time. The approach to obtaining silver alginate is presented in detail, and its sorption and transport properties are also studied. It is worth noting the increased selectivity of the material for the ethylene/ethane mixture (more than 100). A technique for obtaining a hollow fiber membrane from silver alginate has been developed, and its separating characteristics have been determined. It is shown that in thin layers, silver alginate retains high values of selectivity for the ethylene/ethane gas pair. The obtained gas transport properties demonstrate the high potential of using membranes based on silver alginate for the separation of an olefin/paraffin mixture.
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Goyat R, Saharan Y, Singh J, Umar A, Akbar S. Synthesis of Graphene-Based Nanocomposites for Environmental Remediation Applications: A Review. Molecules 2022; 27:6433. [PMID: 36234970 PMCID: PMC9571129 DOI: 10.3390/molecules27196433] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/13/2022] [Accepted: 09/23/2022] [Indexed: 11/29/2022] Open
Abstract
The term graphene was coined using the prefix "graph" taken from graphite and the suffix "-ene" for the C=C bond, by Boehm et al. in 1986. The synthesis of graphene can be done using various methods. The synthesized graphene was further oxidized to graphene oxide (GO) using different methods, to enhance its multitude of applications. Graphene oxide (GO) is the oxidized analogy of graphene, familiar as the only intermediate or precursor for obtaining the latter at a large scale. Graphene oxide has recently obtained enormous popularity in the energy, environment, sensor, and biomedical fields and has been handsomely exploited for water purification membranes. GO is a unique class of mechanically robust, ultrathin, high flux, high-selectivity, and fouling-resistant separation membranes that provide opportunities to advance water desalination technologies. The facile synthesis of GO membranes opens the doors for ideal next-generation membranes as cost-effective and sustainable alternative to long existing thin-film composite membranes for water purification applications. Many types of GO-metal oxide nanocomposites have been used to eradicate the problem of metal ions, halomethanes, other organic pollutants, and different colors from water bodies, making water fit for further use. Furthermore, to enhance the applications of GO/metal oxide nanocomposites, they were deposited on polymeric membranes for water purification due to their relatively low-cost, clear pore-forming mechanism and higher flexibility compared to inorganic membranes. Along with other applications, using these nanocomposites in the preparation of membranes not only resulted in excellent fouling resistance but also could be a possible solution to overcome the trade-off between water permeability and solute selectivity. Hence, a GO/metal oxide nanocomposite could improve overall performance, including antibacterial properties, strength, roughness, pore size, and the surface hydrophilicity of the membrane. In this review, we highlight the structure and synthesis of graphene, as well as graphene oxide, and its decoration with a polymeric membrane for further applications.
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Affiliation(s)
- Rohit Goyat
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala 133203, Haryana, India
| | - Yajvinder Saharan
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala 133203, Haryana, India
| | - Joginder Singh
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala 133203, Haryana, India
| | - Ahmad Umar
- Department of Chemistry, College of Science and Arts, and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran 11001, Saudi Arabia
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Sheikh Akbar
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
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Infusion of Silver-Polydopamine Particles into Polyethersulfone Matrix to Improve the Membrane's Dye Desalination Performance and Antibacterial Property. MEMBRANES 2021; 11:membranes11030216. [PMID: 33808528 PMCID: PMC8003254 DOI: 10.3390/membranes11030216] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 12/11/2022]
Abstract
The advancement in membrane science and technology, particularly in nanofiltration applications, involves the blending of functional nanocomposites into the membranes to improve the membrane property. In this study, Ag-polydopamine (Ag-PDA) particles were synthesized through in situ PDA-mediated reduction of AgNO3 to silver. Infusing Ag-PDA particles into polyethersulfone (PES) matrix affects the membrane property and performance. X-ray photoelectron spectroscopy (XPS) analyses confirmed the presence of Ag-PDA particles on the membrane surface. Field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM) describe the morphology of the membranes. At an optimum concentration of Ag-PDA particles (0.3 wt % based on the concentration of PES), the modified membrane exhibited high water flux 13.33 L∙m−2∙h−1 at 4 bar with high rejection for various dyes of >99%. The PESAg-PDA0.3 membrane had a pure water flux more than 5.4 times higher than that of a pristine membrane. Furthermore, in bacterial attachment using Escherichia coli, the modified membrane displayed less bacterial attachment compared with the pristine membrane. Therefore, immobilizing Ag-PDA particles into the PES matrix enhanced the membrane performance and antibacterial property.
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Linhares AMF, Borges CP, Fonseca FV. Investigation of Biocidal Effect of Microfiltration Membranes Impregnated with Silver Nanoparticles by Sputtering Technique. Polymers (Basel) 2020; 12:polym12081686. [PMID: 32751052 PMCID: PMC7463648 DOI: 10.3390/polym12081686] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/20/2020] [Accepted: 07/24/2020] [Indexed: 11/16/2022] Open
Abstract
Silver nanoparticles were loaded in microfiltration membranes by sputtering technique for the development of biocidal properties and biofouling resistance. This technology allows good adhesion between silver nanoparticles and the membranes, and fast deposition rate. The microfiltration membranes (15 wt.% polyethersulfone and 7.5 wt.% polyvinylpyrrolidone in N,N-dimethylacetamide) were prepared by phase inversion method, and silver nanoparticles were deposited on their surface by the physical technique of vapor deposition in a sputtering chamber. The membranes were characterized by Field Emission Scanning Electron Microscopy, and the presence of silver was investigated by Energy-Dispersive Spectroscopy and X-ray Diffraction. Experiments of silver leaching were carried out through immersion and filtration tests. After 10 months of immersion in water, the membranes still presented ~90% of the initial silver, which confirms the efficiency of the sputtering technique. Moreover, convective experiments indicated that 98.8% of silver remained in the membrane after 24 h of operation. Biocidal analyses (disc diffusion method and biofouling resistance) were performed against Pseudomonas aeruginosa and confirmed the antibacterial activity of these membranes with 0.6 and 0.7 log reduction of viable planktonic and sessile cells, respectively. These results indicate the great potential of these new membranes to reduce biofouling effects.
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Affiliation(s)
- Aline M. F. Linhares
- School of Chemistry, Federal University of Rio de Janeiro, Horacio Macedo Av, 2030, Technology Center, I-124, University City, Rio de Janeiro 21941-909, Brazil;
- Correspondence:
| | - Cristiano P. Borges
- Chemical Engineering Program, COPPE, Federal University of Rio de Janeiro, Horacio Macedo Av, 2030, Technology Center, G-115, University City, Rio de Janeiro 21941-450, Brazil;
| | - Fabiana V. Fonseca
- School of Chemistry, Federal University of Rio de Janeiro, Horacio Macedo Av, 2030, Technology Center, I-124, University City, Rio de Janeiro 21941-909, Brazil;
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5
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El-Gendi A, Ghanem AF, Yassin MA, Abdel Rehim MH. Antifouling and antimicrobial polyethersulfone/hyperbranched polyester-amide/Ag composite. RSC Adv 2020; 10:24169-24175. [PMID: 35516212 PMCID: PMC9055127 DOI: 10.1039/d0ra03452e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/12/2020] [Indexed: 11/30/2022] Open
Abstract
This study provided a facile approach for the development of antifouling and antibacterial polyethersulfone (PES) composite film. Mainly, hyperbranched polyester-amide (PESAM) was used as both the reducing and capping agent for the in situ formation of AgNPs. The nanoparticles were intensively investigated using Fourier transform infrared spectroscopy (FTIR), ultra-violet spectroscopy (UV-vis), scanning and transmission electron microscopy (SEM & TEM) and X-ray diffraction (XRD). AgNPs were narrowly distributed with an average particle size of about 6 nm. PESAM was mixed with PES to realize free-standing film using the phase inversion method. The inclusion of PESAM in the composite film significantly improved hydrophilicity as confirmed by the contact angle measurements. Furthermore, SEM and EDX investigations confirmed that PESAM induced the in situ formation of AgNPs not only on the film surface but also inside its macro-voids. The composite film (PES/PESAM/Ag) displayed significant antibacterial potential against Gram positive and Gram negative bacteria. Overall, the described method paves the way towards development of advanced PES composite films with antimicrobial properties for broad application areas that include desalination membranes or active packaging materials.
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Affiliation(s)
- Ayman El-Gendi
- Chemical Engineering and Pilot Plant Department, Engineering Division, National Research Centre Giza Egypt
| | - Ahmed F Ghanem
- Packaging Materials Department, Chemical Industries Research Division, National Research Centre Giza Egypt
| | - Mohamed A Yassin
- Packaging Materials Department, Chemical Industries Research Division, National Research Centre Giza Egypt
- Advanced Materials and Nanotechnology Lab., Center of Excellence, National Research Centre Giza Egypt
| | - Mona H Abdel Rehim
- Packaging Materials Department, Chemical Industries Research Division, National Research Centre Giza Egypt
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6
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Polyamide-zinc oxide-based thin film nanocomposite membranes: Towards improved performance for forward osmosis. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114362] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Orooji Y, Liang F, Razmjou A, Liu G, Jin W. Preparation of anti-adhesion and bacterial destructive polymeric ultrafiltration membranes using modified mesoporous carbon. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.05.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Mousavi Khaneghah A, Hashemi SMB, Limbo S. Antimicrobial agents and packaging systems in antimicrobial active food packaging: An overview of approaches and interactions. FOOD AND BIOPRODUCTS PROCESSING 2018. [DOI: 10.1016/j.fbp.2018.05.001] [Citation(s) in RCA: 208] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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9
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Regeneration and reuse of polymeric nanocomposites in wastewater remediation: the future of economic water management. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2403-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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10
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Ursino C, Castro-Muñoz R, Drioli E, Gzara L, Albeirutty MH, Figoli A. Progress of Nanocomposite Membranes for Water Treatment. MEMBRANES 2018; 8:E18. [PMID: 29614045 PMCID: PMC6027241 DOI: 10.3390/membranes8020018] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 03/20/2018] [Accepted: 03/29/2018] [Indexed: 12/16/2022]
Abstract
The use of membrane-based technologies has been applied for water treatment applications; however, the limitations of conventional polymeric membranes have led to the addition of inorganic fillers to enhance their performance. In recent years, nanocomposite membranes have greatly attracted the attention of scientists for water treatment applications such as wastewater treatment, water purification, removal of microorganisms, chemical compounds, heavy metals, etc. The incorporation of different nanofillers, such as carbon nanotubes, zinc oxide, graphene oxide, silver and copper nanoparticles, titanium dioxide, 2D materials, and some other novel nano-scale materials into polymeric membranes have provided great advances, e.g., enhancing on hydrophilicity, suppressing the accumulation of pollutants and foulants, enhancing rejection efficiencies and improving mechanical properties and thermal stabilities. Thereby, the aim of this work is to provide up-to-date information related to those novel nanocomposite membranes and their contribution for water treatment applications.
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Affiliation(s)
- Claudia Ursino
- Institute on Membrane Technology National Research Council, ITM-CNR, Via P. Bucci 17/C, 87036 Rende (CS), Italy; (C.U.); (R.C.-M.); (E.D.)
| | - Roberto Castro-Muñoz
- Institute on Membrane Technology National Research Council, ITM-CNR, Via P. Bucci 17/C, 87036 Rende (CS), Italy; (C.U.); (R.C.-M.); (E.D.)
- Department of Inorganic Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Enrico Drioli
- Institute on Membrane Technology National Research Council, ITM-CNR, Via P. Bucci 17/C, 87036 Rende (CS), Italy; (C.U.); (R.C.-M.); (E.D.)
| | - Lassaad Gzara
- Center of Excellence in Desalination Technology, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia;
| | - Mohammad H. Albeirutty
- Center of Excellence in Desalination Technology, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia;
- Mechanical Engineering Department, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| | - Alberto Figoli
- Institute on Membrane Technology National Research Council, ITM-CNR, Via P. Bucci 17/C, 87036 Rende (CS), Italy; (C.U.); (R.C.-M.); (E.D.)
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11
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Wu H, Liu Y, Huang J, Mao L, Chen J, Li M. Preparation and characterization of antifouling and antibacterial polysulfone ultrafiltration membranes incorporated with a silver-polydopamine nanohybrid. J Appl Polym Sci 2018. [DOI: 10.1002/app.46430] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Huiqing Wu
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering; Xiamen University of Technology; Xiamen 361024 China
- State Key Laboratory of Molecular Engineering of Polymers; Fudan University; Shanghai 200433 China
| | - Yuejun Liu
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering; Xiamen University of Technology; Xiamen 361024 China
| | - Jing Huang
- Department of Chemical Engineering; University of Washington; Seattle Washington 98105
| | - Long Mao
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering; Xiamen University of Technology; Xiamen 361024 China
| | - Jianhong Chen
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering; Xiamen University of Technology; Xiamen 361024 China
| | - Meng Li
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems (Ministry of Education of China), School of Power Engineering; Chongqing University; Chongqing 400044 China
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12
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Zhu J, Hou J, Zhang Y, Tian M, He T, Liu J, Chen V. Polymeric antimicrobial membranes enabled by nanomaterials for water treatment. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.12.071] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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13
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Amouamouha M, Badalians Gholikandi G. Characterization and Antibiofouling Performance Investigation of Hydrophobic Silver Nanocomposite Membranes: A Comparative Study. MEMBRANES 2017; 7:membranes7040064. [PMID: 29137142 PMCID: PMC5746823 DOI: 10.3390/membranes7040064] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 10/26/2017] [Accepted: 11/07/2017] [Indexed: 12/19/2022]
Abstract
Biofouling is one of the drawbacks restricting the industrial applications of membranes. In this study, different thicknesses of silver nanoparticles with proper adhesion were deposited on poly(vinylidenefluoride) (PVDF) and polyethersulfone (PES) surfaces by physical vapor deposition (PVD). The crystalline and structural properties of modified and pure membranes were investigated by carrying out X-ray diffraction (XRD) and attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR). Scanning electron microscope (SEM) and atomic force microscopy (AFM) analyses were employed to examine the surface morphology and the bacteria anti-adhesion property of the membranes. The morphology measurements confirmed that even though after silver grafting the surface became more hydrophobic, the homogeneity increased and the flux reduction decreased after coating. Moreover a comparison between PVDF and PES revealed that CFU (colony forming units) reduced 64.5% on PVDF surface and 31.1% on PES surface after modification. In conclusion, PVD improved the performance of the membrane antibiofouling, and it is more promising to be used for PVDF rather than PES.
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Affiliation(s)
- Maryam Amouamouha
- Faculty of Civil, Water and Environmental Engineering, A.C., Shahid Beheshti University, Tehran 1658953571, Iran.
| | - Gagik Badalians Gholikandi
- Faculty of Civil, Water and Environmental Engineering, A.C., Shahid Beheshti University, Tehran 1658953571, Iran.
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14
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Virtanen T, Reinikainen SP, Kögler M, Mänttäri M, Viitala T, Kallioinen M. Real-time fouling monitoring with Raman spectroscopy. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.12.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Venkatesan R, Rajeswari N. ZnO/PBAT nanocomposite films: Investigation on the mechanical and biological activity for food packaging. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3847] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Raja Venkatesan
- Department of Printing Technology, College of Engineering Guindy; Anna University; Chennai 600025 Tamil Nadu India
| | - Natesan Rajeswari
- Department of Printing Technology, College of Engineering Guindy; Anna University; Chennai 600025 Tamil Nadu India
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16
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Huang L, Zhao S, Wang Z, Wu J, Wang J, Wang S. In situ immobilization of silver nanoparticles for improving permeability, antifouling and anti-bacterial properties of ultrafiltration membrane. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2015.10.055] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Davachi SM, Kaffashi B, Zamanian A, Torabinejad B, Ziaeirad Z. Investigating composite systems based on poly l -lactide and poly l -lactide/triclosan nanoparticles for tissue engineering and medical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:294-309. [DOI: 10.1016/j.msec.2015.08.026] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 07/15/2015] [Accepted: 08/18/2015] [Indexed: 11/17/2022]
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18
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Afkham S, Aroujalian A, Raisi A. Fabrication of antimicrobial polyethersulfone microfiltration membranes by corona plasma-assisted coating of silver nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra23257d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, antimicrobial polyethersulfone (PES) membranes were fabricated by coupling of corona treatment and coating silver nanoparticles for use in the microfiltration of milk in order to reduce its microbial content.
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Affiliation(s)
- Samaneh Afkham
- Department of Chemical Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
| | - Abdolreza Aroujalian
- Department of Chemical Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
| | - Ahmadreza Raisi
- Department of Chemical Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
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19
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Baghbanzadeh M, Rana D, Lan CQ, Matsuura T. Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment. SEPARATION AND PURIFICATION REVIEWS 2015. [DOI: 10.1080/15422119.2015.1068806] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Moghimifar V, Livari AE, Raisi A, Aroujalian A. Enhancing the antifouling property of polyethersulfone ultrafiltration membranes using NaX zeolite and titanium oxide nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra06986f] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The fouling tendency of nanocomposite membranes containing TiO2 and NaX zeolite nanoparticles was significantly lower than the neat PES membrane.
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Affiliation(s)
- V. Moghimifar
- Department of Chemical Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
| | - A. Esmaili Livari
- Department of Chemical Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
| | - A. Raisi
- Department of Chemical Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
| | - A. Aroujalian
- Department of Chemical Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
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21
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Kumar S Mural P, Sharma M, Shukla A, Bhadra S, Padmanabhan B, Madras G, Bose S. Porous membranes designed from bi-phasic polymeric blends containing silver decorated reduced graphene oxide synthesized via a facile one-pot approach. RSC Adv 2015. [DOI: 10.1039/c5ra01656h] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, porous membranes were designed by selectively etching the PEO phase, by water, from a melt-mixed PE/PEO blend.
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Affiliation(s)
| | - Maya Sharma
- Center for Nano Science and Engineering
- Indian Institute of Science
- Bangalore-560012
- India
| | - Abhinaya Shukla
- Polymer Science Diagnostic Center
- Steer Engineering Pvt. Ltd
- Bangalore-560058
- India
| | - Sambhu Bhadra
- Polymer Science Diagnostic Center
- Steer Engineering Pvt. Ltd
- Bangalore-560058
- India
| | - Babu Padmanabhan
- Polymer Science Diagnostic Center
- Steer Engineering Pvt. Ltd
- Bangalore-560058
- India
| | - Giridhar Madras
- Department of Chemical Engineering
- Indian Institute of Science
- Bangalore-560012
- India
| | - Suryasarathi Bose
- Department of Materials Engineering
- Indian Institute of Science
- Bangalore-560012
- India
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22
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Shemesh R, Krepker M, Goldman D, Danin-Poleg Y, Kashi Y, Nitzan N, Vaxman A, Segal E. Antibacterial and antifungal LDPE films for active packaging. POLYM ADVAN TECHNOL 2014. [DOI: 10.1002/pat.3434] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rotem Shemesh
- Department of Biotechnology and Food Engineering; Technion-Israel Institute of Technology; Haifa 32000 Israel
- Carmel Olefins Ltd.; P.O. Box 1468 Haifa 31014 Israel
| | - Maksym Krepker
- Department of Biotechnology and Food Engineering; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Diana Goldman
- Department of Biotechnology and Food Engineering; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Yael Danin-Poleg
- Department of Biotechnology and Food Engineering; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Yechezkel Kashi
- Department of Biotechnology and Food Engineering; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Nadav Nitzan
- D.S. Smith Plastics/StePac L.A.; Tefen Industrial Park Tefen Western Galilee 24959 Israel
| | - Anita Vaxman
- Carmel Olefins Ltd.; P.O. Box 1468 Haifa 31014 Israel
| | - Ester Segal
- Department of Biotechnology and Food Engineering; Technion-Israel Institute of Technology; Haifa 32000 Israel
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23
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Mishra S, Nayar S. Protein-Polymer Matrix Mediated Synthesis of Silver Nanoparticles. Nanobiomedicine (Rij) 2014; 1:3. [PMID: 30023014 PMCID: PMC6029234 DOI: 10.5772/59297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Accepted: 09/09/2014] [Indexed: 01/24/2023] Open
Abstract
Silver nanoparticles were synthesized in the protein-polymer matrices of two different ratios to obtain a stringent control over the morphology. UV-visible spectrophotometry showed a single plasmon resonance peak at 416nm and 418nm respectively, confirming the formation of silver nanoparticles. X-ray diffractometry confirmed that the peaks matched with that of the reference silver. Both confocal microscopy and FEG-SEM confirmed the uniform morphology of the synthesized particles dependent on the template ratio. Doubling the protein-polymer concentration results in greater stability, more nucleation sites and hence restricted growth. Photoluminescence of the sample in the doubled matrix was found to be much greater at any given wavelength, meaning the flexibility and rigidity of interacting molecules affects the luminescence signal. The interaction in turn is dependent on the proximity of the proteins and polymer in the dispersion that forms a template and dictates the synthesis.
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Affiliation(s)
- Swati Mishra
- Materials Science & Technology Division, CSIR-National Metallurgical Laboratory, Burmamines, Jamshedpur, India
| | - Suprabha Nayar
- Materials Science & Technology Division, CSIR-National Metallurgical Laboratory, Burmamines, Jamshedpur, India
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