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Masoumi Godgaz S, Asefnejad A, Bahrami SH. Fabrication of PEGylated SPIONs-Loaded Niosome for Codelivery of Paclitaxel and Trastuzumab for Breast Cancer Treatment: In Vivo Study. ACS Appl Bio Mater 2024. [PMID: 38602218 DOI: 10.1021/acsabm.4c00027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
There is a growing appeal for engineering drug delivery systems for controlled and local drug delivery. Conjugation of antibodies on the nanocarriers for targeted chemotherapeutic drugs has always been one of the main techniques. This work aims to develop a polycaprolactone/chitosan electrospun mat incorporated with paclitaxel/Fe3O4-loaded niosomes (SPNs) decorated with trastuzumab (TbNs) for cancer therapy. SPNs and TbNs were analyzed by DLS, zeta potential, scanning electron microscopy, transmission electron microscopy, and Fourier transform infrared spectroscopy. Fabricated mats with distinct concentrations of TbNs were classified into four groups (G0 (0), G1 (1), G2 (2.5), and G3 (5%)) and were studied physicochemically, mechanically, and biologically. Paclitaxel release was also studied for 7 days under an alternative magnetic field (AMF). The optimized mat was nominated for an in vivo study to evaluate its tumor growth inhibition. Based on the results, the TbNs had a spherical core and shell morphology with a smooth surface. The zeta potential and the mean size of TbNs were equal to -14.7 mV and 221 nm. TbNs did not affect the morphology and quality of nanofibers, but in general, the presence of TbNs increased the elastic modulus, water uptake, and degradation. Regarding the release study, AMF showed a significant increase in accelerating paclitaxel release from mats, and most releases belonged to the mat with 5% of TbNs. Results from the in vivo study showed the effective and synergistic effects of AMF on drug release and significant tumor growth inhibition. To summarize, the proposed nanocarrier under AMF can be a good candidate for cancer therapy.
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Affiliation(s)
- Saeideh Masoumi Godgaz
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran 1477893855,Iran
| | - Azadeh Asefnejad
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran 1477893855,Iran
| | - S Hajir Bahrami
- Department of Textile Engineering, Amirkabir University of Technology, Tehran15875-4413,Iran
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Sharifi M, Sadati SA, Bahrami SH, Haramshahi SMA. Modeling and optimization of poly(lactic acid)/poly(ℇ-caprolactone)/Nigella sativa extract nanofibers production for skin wounds healing by artificial neural network and response surface methodology models. Int J Biol Macromol 2023; 253:127227. [PMID: 37865369 DOI: 10.1016/j.ijbiomac.2023.127227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/23/2023] [Accepted: 10/01/2023] [Indexed: 10/23/2023]
Abstract
Electrospun fibrous scaffolds have great potential for the effective treatment of wounds. Novel blend scaffolds were fabricated from poly(ℇ- caprolactone) (PCL)/poly (lactic acid) (PLA) with Nigella sativa (NS) extract in different concentrations of 10 %, 15 %, 20 %, and 25 % by one nozzle electrospinning. RSM and ANN models were used to determine optimal nanofiber. The results showed that the ANN model had average goodness values of almost 1.992 which was higher than the RSM model with an amount of 1.823. The best sample was determined with the combination of parameters such as PLA/PCL (70:29) concentration, voltage 17 kV, and flow rate 0.2 ml/h in diameter of nanofiber 410 nm by Genetic Algorithm (GA) model with cost value 0.0216 that was lower than cost value (0.0927) of ANN model. The effect of NS extract on nanofibers properties showed that loading high concentrations of NS extract in PLA/PCL polymer solutions caused a decrease in nanofibers diameter, hydrophilicity, and tensile strength. Overall, PLA/PCL/NS 25 % nanofiber was selected as an optimal web with an average diameter of 370 ± 68 nm with a young modulus 5.94 MPa. This scaffold also exhibited the highest antibacterial activity, cell attachment, and cell viability based on the MTT assay.
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Affiliation(s)
- Mohaddeseh Sharifi
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
| | - S Ameneh Sadati
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - S Hajir Bahrami
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran.
| | - S Mohammad Amin Haramshahi
- Department of Tissue Engineering, Cellular and Molecular Research of Center, Iran University of Medical Sciences, Tehran, Iran
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Hivechi A, Joghataei MT, Bahrami SH, Milan PB, Amoupour M, Latifi N, Haramshahi SMA, Gharahgheshlagh SN, Nezari S. Oxidized carboxymethyl cellulose/gelatin in situ gelling hydrogel for accelerated diabetic wound healing: Synthesis, characterization, and in vivo investigations. Int J Biol Macromol 2023:125127. [PMID: 37263327 DOI: 10.1016/j.ijbiomac.2023.125127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/18/2023] [Accepted: 05/25/2023] [Indexed: 06/03/2023]
Abstract
Diabetic wounds are chronic wounds that are currently affecting many patient's quality of life. These wounds are challenging because of the impaired healing cycle and harsh environment. In this study in situ gelling hydrogels based on oxidized carboxymethyl cellulose (OCMC) and gelatin (Gel) were used to hasten the healing rate due to their ease of application. The suggested system in this work is synthesized from entirely natural renewable biomaterials to not only achieve the best biocompatibility and biodegradability but also to develop a sustainable product. The rheological studies showed that the hydrogel is turned into a gel after about 30 s of the mixing process. Moreover, the hydrogel can absorb about ten times its weight, keeping the wound hydrated. In vitro biological investigations indicated optimal biocompatibility, antibacterial, and antioxidant activity for faster tissue regeneration. This product was tested in vivo on normal rats and diabetic mice models to treat full-thickness incisional wounds. Results showed that the OCMC-Gel hydrogel is able to hasten the healing rate in both non-diabetic and diabetic wounds. Pathological examinations of the regenerated skin tissue revealed that the OCMC-Gel treated groups developed much more than the control group.
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Affiliation(s)
- Ahmad Hivechi
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran; Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.
| | - Mohammad Taghi Joghataei
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - S Hajir Bahrami
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran.
| | - Peiman B Milan
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Moein Amoupour
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Noorahmad Latifi
- Department of Plastic and Reconstructive Surgery, Hazrat Fatemeh Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - S Mohammad Amin Haramshahi
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Plastic and Reconstructive Surgery, Hazrat Fatemeh Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Soheila Naderi Gharahgheshlagh
- Department of Plastic and Reconstructive Surgery, Hazrat Fatemeh Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Saeed Nezari
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran; Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
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Razmshoar P, Besbes F, Madaci A, Mlika R, Bahrami SH, Rabiee M, Martin M, Errachid A, Jaffrezic-Renault N. A conductometric enzymatic methanol sensor based on polystyrene - PAMAM dendritic polymer electrospun nanofibers. Talanta 2023; 260:124630. [PMID: 37178675 DOI: 10.1016/j.talanta.2023.124630] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/22/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023]
Abstract
Methanol (MeOH) is a solvent and cleaning agent used in industry, but it is poisonous when ingested. The recommended release threshold for MeOH vapor is 200 ppm. We present a novel sensitive micro-conductometric MeOH biosensor created by grafting alcohol oxidase (AOX) onto electrospun polystyrene-poly(amidoamine) dendritic polymer blend nanofibers (PS-PAMAM-ESNFs) on interdigitated electrodes (IDEs). The analytical performance of the MeOH microsensor was evaluated using gaseous MeOH, ethanol, and acetone samples collected from the headspace above aqueous solution with known concentration. The sensor's response time (tRes) fluctuates from 13 s to 35 s from lower to higher concentrations. The conductometric sensor has a sensitivity of 150.53 μS.cm-1 (v/v) for MeOH and a detection limit of 100 ppm in the gas phase. The MeOH sensor is 7.3 times less sensitive to ethanol and 136.8 times less sensitive to acetone. The sensor was verified for detecting MeOH in commercial rubbing alcohol samples.
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Affiliation(s)
- Pouyan Razmshoar
- Textile Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran; University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France
| | - Fatma Besbes
- University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France; University of Monastir, Laboratory of Interfaces and Advanced Materials, Faculty of Science of Monastir, 5019, Monastir, Tunisia
| | - Anis Madaci
- University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France
| | - Rym Mlika
- University of Monastir, Laboratory of Interfaces and Advanced Materials, Faculty of Science of Monastir, 5019, Monastir, Tunisia
| | - S Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Mohammad Rabiee
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Marie Martin
- University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France
| | - Abdelhamid Errachid
- University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France
| | - Nicole Jaffrezic-Renault
- University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France.
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Noor N, Pajootan E, Mirzaei P, Bahrami SH. A Highly Selective Carbon Paste Electrode Enhanced by Cu‐Encapsulated PAMAM for the Simultaneous Detection of Organic and Inorganic Contaminants. CAN J CHEM ENG 2023. [DOI: 10.1002/cjce.24879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Affiliation(s)
- Navid Noor
- Department of Chemical Engineering McMaster University Hamilton Canada
- Textile Engineering Department Amirkabir University of Technology Tehran Iran
| | - Elmira Pajootan
- Department of Chemical Engineering McGill University Montreal QC Canada
| | - Parisa Mirzaei
- Textile Engineering Department Amirkabir University of Technology Tehran Iran
| | - S. Hajir Bahrami
- Textile Engineering Department Amirkabir University of Technology Tehran Iran
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6
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Mohamadi PS, Hivechi A, Bahrami SH, Nezari S, B Milan P, Amoupour M. Fabrication and investigating in vivo wound healing property of coconut oil loaded nanofiber/hydrogel hybrid scaffold. Biomater Adv 2022; 142:213139. [PMID: 36242859 DOI: 10.1016/j.bioadv.2022.213139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 09/24/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Obtaining a sustainable drug delivery system is a challenging issue in biomedical science. This became even more important in the wound regeneration process due to its long treatment process. In this study, the calcium alginate (CaAlg) hydrogel is coated on the surface of polycaprolactone (PCL)/gelatin (Gel) nanofibers containing coconut oil (CO) using the impregnation method. The physical, chemical, and morphological properties of produced samples are investigated using different characterization techniques to verify the influence of hydrogel. Water contact angle, swelling ratio, and water vapor permeability measurements are used to evaluate the effect of hydrogel on the hydrophilicity of the proposed system. The cell viability test showed that the nanocomposite hydrogel is biocompatible and could improve wound healing. According to drug release studies, hydrogel addition to the nanofiber system plays an essential role in controlling CO release rate in the first 250 h. In vivo studies also indicated faster skin regeneration.
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Affiliation(s)
- Parian S Mohamadi
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Ahmad Hivechi
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran; Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - S Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran.
| | - Saeed Nezari
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Peiman B Milan
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Moein Amoupour
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
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Haghdoost F, Bahrami SH, Barzin J, Ghaee A. Development of biocompatible co-electrospun polyethersulfone/polyvinylpyrrolidone-Y zeolite hybrid nanofiber. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2118274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Fatemeh Haghdoost
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
| | - S. Hajir Bahrami
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Jalal Barzin
- Department of Biomaterials, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Azadeh Ghaee
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
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Baghersad S, Hivechi A, Bahrami SH, Brouki Milan P, Siegel RA, Amoupour M. Optimal Aloe vera encapsulated PCL/Gel nanofiber design for skin substitute application and the evaluation of its in vivo implantation. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103536] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Rohani Shirvan A, Hemmatinejad N, Bahrami SH, Bashari A. Fabrication of multifunctional mucoadhesive buccal patch for drug delivery applications. J Biomed Mater Res A 2021; 109:2640-2656. [PMID: 34190400 DOI: 10.1002/jbm.a.37257] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 06/08/2021] [Accepted: 06/17/2021] [Indexed: 01/20/2023]
Abstract
Mucoadhesive buccal patch is a promising dosage form for a successful oral drug delivery, which provides unique advantages for various applications such as treatment of periodontal disease and postdental surgery disorders. The aim of this study is to synthesize a novel multifunctional mucoadhesive buccal patch in a multilayer reservoir design for therapeutic applications. The patches were fabricated through simultaneous electrospinning of chitosan/poly(vinylalcohol) (PVA)/ibuprofen and electrospraying of phenylalanine amino acid nanotubes (PhNTs) containing metronidazole into the electrospun mats through a layer-by-layer process. An electrospun poly(caprolactone) (PCL) was used as an impermeable backing layer to protect the mucoadhesive component from tongue movement and drug loss. Buccal patches were characterized using scanning electron microscopy (SEM) and field emission scanning electron microscopy (FESEM) and also evaluated in terms of physicomechanical parameters such as pH, weight, thickness, tensile strength, folding endurance, and mucoadhesive properties. The swelling index of the patches was examined with respect to the PVA/chitosan ratio. The effect of genipin addition to the electrospinning solution was also studied on mucoadhesive and swelling properties. The cell viability of buccal patches was assessed by methylthiazolydiphenyl-tetrazolium bromide test on L929 fibroblast cell line. The patch with an optimal amount of mucoadhesive polymers (PVA/chitosan 80:20) and crosslinking agent (0.05 g) indicated an ideal hemostatic activity along with antibacterial properties against Streptococcus mutans bacteria. The synthesized multifunctional mucoadhesive patch with a novel composition and design has a great potential for oral therapeutic applications.
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Affiliation(s)
| | - Nahid Hemmatinejad
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - S Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Azadeh Bashari
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran
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Hivechi A, Milan PB, Modabberi K, Amoupour M, Ebrahimzadeh K, Gholipour AR, Sedighi F, Amini N, Bahrami SH, Rezapour A, Hamidi M, Delattre C. Synthesis and Characterization of Exopolysaccharide Encapsulated PCL/Gelatin Skin Substitute for Full-Thickness Wound Regeneration. Polymers (Basel) 2021; 13:polym13060854. [PMID: 33802198 PMCID: PMC8000589 DOI: 10.3390/polym13060854] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 03/03/2021] [Accepted: 03/03/2021] [Indexed: 12/15/2022] Open
Abstract
Loss of skin integrity can lead to serious problems and even death. In this study, for the first time, the effect of exopolysaccharide (EPS) produced by cold-adapted yeast R. mucilaginosa sp. GUMS16 on a full-thickness wound in rats was evaluated. The GUMS16 strain's EPS was precipitated by adding cold ethanol and then lyophilized. Afterward, the EPS with polycaprolactone (PCL) and gelatin was fabricated into nanofibers with two single-needle and double-needle procedures. The rats' full-thickness wounds were treated with nanofibers and Hematoxylin and eosin (H&E) and Masson's Trichrome staining was done for studying the wound healing in rats. Obtained results from SEM, DLS, FTIR, and TGA showed that EPS has a carbohydrate chemical structure with an average diameter of 40 nm. Cell viability assessments showed that the 2% EPS loaded sample exhibits the highest cell activity. Moreover, in vivo implantation of nanofiber webs on the full-thickness wound on rat models displayed a faster healing rate when EPS was loaded into a nanofiber. These results suggest that the produced EPS can be used for skin tissue engineering applications.
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Affiliation(s)
- Ahmad Hivechi
- Department of Textile Engineering, School of Materials and Advanced Processing, Amirkabir University of Technology, Tehran 1591639675, Iran; (A.H.); (S.H.B.)
| | - Peiman Brouki Milan
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran 1591639675, Iran; (P.B.M.); (N.A.)
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran 1591639675, Iran
| | - Khashayar Modabberi
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht 4477166595, Iran; (K.M.); (A.R.G.); (F.S.)
| | - Moein Amoupour
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran 1591639675, Iran;
| | - Kaveh Ebrahimzadeh
- Department of Neurosurgery, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran 1591639675, Iran;
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran 1591639675, Iran
| | - Amir Reza Gholipour
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht 4477166595, Iran; (K.M.); (A.R.G.); (F.S.)
| | - Faezeh Sedighi
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht 4477166595, Iran; (K.M.); (A.R.G.); (F.S.)
| | - Naser Amini
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran 1591639675, Iran; (P.B.M.); (N.A.)
| | - S. Hajir Bahrami
- Department of Textile Engineering, School of Materials and Advanced Processing, Amirkabir University of Technology, Tehran 1591639675, Iran; (A.H.); (S.H.B.)
| | - Alireza Rezapour
- Department of Tissue Engineering, School of Medicine, Qom University of Medical Sciences, Qom 3716993456, Iran;
| | - Masoud Hamidi
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht 4477166595, Iran; (K.M.); (A.R.G.); (F.S.)
- Correspondence: (M.H.); (C.D.); Tel.: +32-26-50-3681 (M.H.); +33-(0)4-73-40-7423 (C.D.)
| | - Cédric Delattre
- Université Clermont Auvergne, CNRS, Clermont Auvergne INP, Institut Pascal, F-63000 Clermont-Ferrand, France
- Institut Universitaire de France (IUF), 1 Rue Descartes, 75005 Paris, France
- Correspondence: (M.H.); (C.D.); Tel.: +32-26-50-3681 (M.H.); +33-(0)4-73-40-7423 (C.D.)
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Haghdoost F, Bahrami SH, Barzin J, Ghaee A. Preparation and characterization of electrospun polyethersulfone/polyvinylpyrrolidone-zeolite core–shell composite nanofibers for creatinine adsorption. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117881] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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12
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Hivechi A, Bahrami SH, Siegel RA, Siehr A, Sahoo A, Milan PB, Joghataei MT, Amoupour M, Simorgh S. Cellulose nanocrystal effect on crystallization kinetics and biological properties of electrospun polycaprolactone. Materials Science and Engineering: C 2021; 121:111855. [DOI: 10.1016/j.msec.2020.111855] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/04/2020] [Accepted: 12/27/2020] [Indexed: 01/13/2023]
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Ahmadi S, Hivechi A, Bahrami SH, Milan PB, Ashraf SS. Cinnamon extract loaded electrospun chitosan/gelatin membrane with antibacterial activity. Int J Biol Macromol 2021; 173:580-590. [PMID: 33513421 DOI: 10.1016/j.ijbiomac.2021.01.156] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 01/14/2021] [Accepted: 01/23/2021] [Indexed: 01/11/2023]
Abstract
This study develops chitosan/gelatin nanofiber membranes with sustained release capacity to prevent infection by delivering cinnamon extract (CE) in the implanted site. The effects of the incorporation of CE content (2-6%) on the properties of the nanofibers were evaluated. Morphological studies using SEM indicated that loading the extract did not affect the average diameter of nanofiber mats, which remained around 140-170 nm. TGA and FTIR spectroscopy results confirmed successful CE loading. Furthermore, the results showed that incorporating extract into the nanofibers enhanced their degradation behavior, antibacterial activity, and biocompatibility. Cultured cells attached to and proliferate on the nanofiber membrane with high cell viability capacity until the CE content reached 4%. The extract release profile consisted of a burst release in the first 6 h, followed by a controlled release in the next 138 h. Therefore, CE loaded chitosan/gelatin nanofiber is an excellent construct for biomedical applications.
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Affiliation(s)
- Soroush Ahmadi
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Ahmad Hivechi
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran; Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran; Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran; Institute of Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - S Hajir Bahrami
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran.
| | - Peiman B Milan
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran; Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran; Institute of Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Sara Ashraf
- Institute of Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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Shokrollahi M, Bahrami SH, Nazarpak MH, Solouk A. Biomimetic double-sided polypropylene mesh modified by DOPA and ofloxacin loaded carboxyethyl chitosan/polyvinyl alcohol-polycaprolactone nanofibers for potential hernia repair applications. Int J Biol Macromol 2020; 165:902-917. [PMID: 33011256 DOI: 10.1016/j.ijbiomac.2020.09.229] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/12/2020] [Accepted: 09/24/2020] [Indexed: 10/23/2022]
Abstract
Polypropylene (PP) meshes are the most widely used as hernioplasty prostheses. As far as hernia repair is concerned, bacterial contamination and tissue adhesion would be the clinical issues. Moreover, an optimal mesh should assist the healing process of hernia defect and avoid undesired prosthesis displacements. In this present study, the commercial hernia mesh was modified to solve the mentioned problems. Accordingly, a new bi-functional PP mesh with anti-adhesion and antibacterial properties on the front and adhesion properties (reduce undesired displacements) on the backside was prepared. The backside of PP mesh was coated with polycaprolactone (PCL) nanofibers modified by mussel-inspired L-3,4-dihydroxyphenylalanine (L-DOPA) bioadhesive. The front side was composed of two different nanofibrous mats, including hybrid and two-layered mats with different antibacterial properties, drug release, and biodegradation behavior, which were based on PCL nanofibers and biomacromolecule carboxyethyl-chitosan (CECS)/polyvinyl alcohol (PVA) nanofibers containing different ofloxacin amounts. The anti-adhesion, antibacterial, and biocompatibility studies were done through in-vitro experiments. The results revealed that DOPA coated PCL/PP/hybrid meshes containing ofloxacin below 20 wt% possessed proper cell viability, AdMSCs adhesion prevention, and excellent antibacterial efficiency. Moreover, DOPA modifications not only enhanced the surface properties of the PP mesh but also improved cell adhesion, spreading, and proliferation.
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Affiliation(s)
- Mahvash Shokrollahi
- Nanotechnology Institute, Amirkabir University of Technology, Tehran 15875-4413, Iran; School of Materials and Advanced Processing, Textile Engineering Department, Amirkabir University of Technology, Tehran 15875-4413, Iran
| | - S Hajir Bahrami
- School of Materials and Advanced Processing, Textile Engineering Department, Amirkabir University of Technology, Tehran 15875-4413, Iran.
| | - Masoumeh Haghbin Nazarpak
- New Technologies Research Center (NTRC), Amirkabir University of Technology, Tehran 15875-4413, Iran.
| | - Atefeh Solouk
- Biomedical Engineering Department, Amirkabir University of Technology, Tehran, Iran
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15
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Akerdi AG, Bahrami SH, Pajootan E. Modeling and optimization of Photocatalytic Decolorization of binary dye solution using graphite electrode modified with Graphene oxide and TiO 2. J Environ Health Sci Eng 2020; 18:51-62. [PMID: 32399220 PMCID: PMC7203298 DOI: 10.1007/s40201-019-00437-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 12/30/2019] [Indexed: 06/11/2023]
Abstract
In this paper, the experimental design methodology was employed for modeling and optimizing the operational parameters of the photocatalytic degradation of a binary dye solution using a fixed photocatalytic compound. The compound used was modified graphite electrode (GE) with graphene oxide (GO) on which TiO2 nanoparticles were immobilized. GO nanoparticle was deposited on graphite electrode (GO-GE) using electrochemical approach. TiO2 nanoparticles were immobilized on GO-GE by solvent evaporation method. A binary solution containing mixture of methylene blue (MB) and acid red 14 (AR14) was chosen as dye model. The degradation intermediates were detected and analyzed using gas chromatography. Effect of different factors on the photocatalytic decolorization efficiency was investigated and optimized using response surface methodology (RSM). The obtained results indicated that the prepared TiO2-GO-CE can decolorize MB with high efficiency (93.43%) at pH 11, dye concentration of 10 mg/L and 0.04 g of immobilized TiO2 on the GO fabricated plates after 120 min of photocatalytic process. It was demonstrated that by modifying GE with GO the stability of the electrode was remarkably enhanced. The ANOVA results (R2 = 0.97 and P value <0.0001 for MB, R2 = 0.96 and P value <0.0001 for AR14) and numerical optimization showed that it is possible to make good prediction on decoloration behavior and save time and energy with less number of experiments using design of experiments (DoE) like the RSM. Graphical abstract Wastewater treatment processWastewater treatment process.
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Affiliation(s)
- Abdollah Gholami Akerdi
- Textile Engineering Department, Amirkabir University of Technology, 424 Hafez Ave, Tehran, 15875-4413 Iran
| | - S. Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology, 424 Hafez Ave, Tehran, 15875-4413 Iran
| | - Elmira Pajootan
- Textile Engineering Department, Amirkabir University of Technology, 424 Hafez Ave, Tehran, 15875-4413 Iran
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16
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Rashtchian M, Hivechi A, Bahrami SH, Milan PB, Simorgh S. Fabricating alginate/poly(caprolactone) nanofibers with enhanced bio-mechanical properties via cellulose nanocrystal incorporation. Carbohydr Polym 2020; 233:115873. [DOI: 10.1016/j.carbpol.2020.115873] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/11/2020] [Accepted: 01/13/2020] [Indexed: 01/31/2023]
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17
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Shokrollahi M, Bahrami SH, Nazarpak MH, Solouk A. Multilayer nanofibrous patch comprising chamomile loaded carboxyethyl chitosan/poly(vinyl alcohol) and polycaprolactone as a potential wound dressing. Int J Biol Macromol 2020; 147:547-559. [DOI: 10.1016/j.ijbiomac.2020.01.067] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 01/04/2020] [Accepted: 01/06/2020] [Indexed: 01/11/2023]
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18
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Razmshoar P, Bahrami SH, Akbari S. Functional hydrophilic highly biodegradable PCL nanofibers through direct aminolysis of PAMAM dendrimer. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1655751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Pouyan Razmshoar
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - S. Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Somaye Akbari
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran
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19
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Heidari M, Bahrami SH, Ranjbar-Mohammadi M, Milan PB. Smart electrospun nanofibers containing PCL/gelatin/graphene oxide for application in nerve tissue engineering. Mater Sci Eng C Mater Biol Appl 2019; 103:109768. [PMID: 31349413 DOI: 10.1016/j.msec.2019.109768] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 05/05/2019] [Accepted: 05/17/2019] [Indexed: 12/21/2022]
Abstract
Currently graphene-doped electrospun scaffolds have been a matter of great interest to be exploited in biomedical fields such as tissue engineering and drug delivery applications. The main objective of this paper is to evaluate the effect of graphene on biological properties of PCL/gelatin nanofibrous mats. SEM analysis was conducted to investigate the morphology of the electrospun nanofibers. The in-vitro cellular proliferation of PC12 cells on nanofibrous web was also investigated. Electrospun PCL/gelatin/graphene nanofibrous mats exhibited 99% antibacterial properties against gram-positive and gram-negative bacteria. Drug release studies indicated that the π-π stacking interaction between TCH and graphene has led to the far better controlled release of TCH from electrospun PCL/gelatin/graphene compared to PCL/gelatin nanofibrous scaffolds. These superior properties along with an improvement in hydrophilicity and biodegradation features has made the nanofibers a promising candidate to be used as electrically conductive scaffolds in neural tissue engineering as well as controlled drug delivery.
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Affiliation(s)
- Mina Heidari
- Textile Engineering Department of Amirkabir University of Technology Tehran, Iran
| | - S Hajir Bahrami
- Textile Engineering Department of Amirkabir University of Technology Tehran, Iran.
| | - M Ranjbar-Mohammadi
- Department of Textile Engineering, Faculty Engineering, University of Bonab, Bonab, Iran
| | - P B Milan
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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20
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Hivechi A, Hajir Bahrami S, Siegel RA. Investigation of morphological, mechanical and biological properties of cellulose nanocrystal reinforced electrospun gelatin nanofibers. Int J Biol Macromol 2019; 124:411-417. [DOI: 10.1016/j.ijbiomac.2018.11.214] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 11/21/2018] [Accepted: 11/23/2018] [Indexed: 11/26/2022]
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21
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Hivechi A, Bahrami SH, Siegel RA. Drug release and biodegradability of electrospun cellulose nanocrystal reinforced polycaprolactone. Materials Science and Engineering: C 2019; 94:929-937. [DOI: 10.1016/j.msec.2018.10.037] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 09/25/2018] [Accepted: 10/08/2018] [Indexed: 10/28/2022]
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22
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Baghersad S, Hajir Bahrami S, Mohammadi MR, Mojtahedi MRM, Milan PB. Development of biodegradable electrospun gelatin/aloe-vera/poly(ε‑caprolactone) hybrid nanofibrous scaffold for application as skin substitutes. Materials Science and Engineering: C 2018; 93:367-379. [DOI: 10.1016/j.msec.2018.08.020] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 07/22/2018] [Accepted: 08/06/2018] [Indexed: 12/17/2022]
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Ranjbar-Mohammadi M, Prabhakaran MP, Hajir Bahrami S, Ramakrishna S. Corrigendum to “Gum tragacanth/poly (l-lactic acid) nanofibrous scaffolds for application in regeneration of peripheral nerve damage” [Carbohydr. Polym. J. 140 (2016) 104–112]. Carbohydr Polym 2017; 160:212. [DOI: 10.1016/j.carbpol.2016.12.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Zarekhalili Z, Bahrami SH, Ranjbar-Mohammadi M, Milan PB. Fabrication and characterization of PVA/Gum tragacanth/PCL hybrid nanofibrous scaffolds for skin substitutes. Int J Biol Macromol 2017; 94:679-690. [DOI: 10.1016/j.ijbiomac.2016.10.042] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 10/08/2016] [Accepted: 10/14/2016] [Indexed: 01/19/2023]
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25
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Hivechi A, Bahrami SH. A new cellulose purification approach for higher degree of polymerization: Modeling, optimization and characterization. Carbohydr Polym 2016; 152:280-286. [DOI: 10.1016/j.carbpol.2016.07.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 06/15/2016] [Accepted: 07/01/2016] [Indexed: 11/25/2022]
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26
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Cheraghi R, Bahrami SH, Arami M, Enayati M. Effect of comonomer on the viscoelastic behavior of co-poly (acrylonitrile) solutions. J Polym Res 2016. [DOI: 10.1007/s10965-016-1104-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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27
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Akerdi AG, Bahrami SH, Arami M, Pajootan E. Photocatalytic discoloration of Acid Red 14 aqueous solution using titania nanoparticles immobilized on graphene oxide fabricated plate. Chemosphere 2016; 159:293-299. [PMID: 27309674 DOI: 10.1016/j.chemosphere.2016.06.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/18/2016] [Accepted: 06/05/2016] [Indexed: 06/06/2023]
Abstract
Textile industry consumes remarkable amounts of water during various operations. A significant portion of the water discharge to environment is in the form of colored contaminant. The present research reports the photocatalytic degradation of anionic dye effluent using immobilized TiO2 nanoparticle on graphene oxide (GO) fabricated carbon electrodes. Acid Red 14 (AR 14) was used as model compound. Graphene oxide nanosheets were synthesized from graphite powder using modified Hummer's method. The nanosheets were characterized with field emission scanning electron microscope (FESEM) images, X-ray diffraction (XRD) and FTIR spectrum. The GO nanoparticles were deposited on carbon electrode (GO-CE) by electrochemical deposition (ECD) method and used as catalyst bed. TiO2 nanoparticles were fixed on the bed (GO-CE- TiO2) with thermal process. Photocatalytic processes were carried out using a 500 ml solution containing dye in batch mode. Each photocatalytic treatment were carried out for 120 min. Effect of dye concentration (mg/L), pH of solution, time (min) and TiO2 content (g/L) on the photocatalytic decolorization was investigated.
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Affiliation(s)
- Abdollah Gholami Akerdi
- Textile Engineering Department, Amirkabir University of Technology, 424 Hafez Ave, Tehran, Iran
| | - S Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology, 424 Hafez Ave, Tehran, Iran.
| | - Mokhtar Arami
- Textile Engineering Department, Amirkabir University of Technology, 424 Hafez Ave, Tehran, Iran
| | - Elmira Pajootan
- Textile Engineering Department, Amirkabir University of Technology, 424 Hafez Ave, Tehran, Iran
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28
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Dodel M, Hemmati Nejad N, Bahrami SH, Soleimani M, Hanaee-Ahvaz H. Modifying the mechanical properties of silk nanofiber scaffold by knitted orientation for regenerative medicine applications. Cell Mol Biol (Noisy-le-grand) 2016; 62:16-25. [PMID: 27609469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 08/02/2016] [Indexed: 06/06/2023]
Abstract
Tissue reconstruction is among the increasing applications of polymer nanofibers. Fibrous scaffolds (mats) can be easily produced using the electrospinning method with structure and biomechanical properties similar to those of a cellular matrix. Electrospinning is widely used in the production of nanofibers and the GAP-method electrospinning is one of the means of producing fully aligned nanofibers. In this research, using the GAP-method, knitted fibrous scaffolds were made of silk fibroin, which is a biocompatible and biodegradable polymer. To extract fibroin from cocoons, the sodium chloride solution as well as dialysis and freeze-drying techniques were employed. The molecular weight of the extracted fibroin was measured with the SDS-Page electrophoresis technique. Moreover, the pure fibroin structure was examined using the ATR-FTIR method, and the viscosity of the solution used for electrospinning was measured with the Brookfield rotational viscometer. The scaffolds were prepared through electrospinning of the silk fibroin in pure formic acid solution. The following three structures were electrospun: 1) a random structure; 2) a knitted structure with an interstitial angle of 60 degrees; 3) a knitted structure with an interstitial angle of 90 degrees. Morphology of the resulting fibers was studied with a SEM (scanning electron microscope). Fibroin scaffolds are degradable in water. Therefore, they were fixated through immersion in methanol to be prepared for assays. The mechanical properties of the scaffolds were also studied using a tensile strength test device. The effect of methanol on the strength properties of the samples was also assessed. The hydrophilic potential of the samples was measured via a contact angle test. To increase the hydrophilicity of the scaffold surfaces, the cold oxygen plasma technique was employed. Finally, the biocompatibility and cell adhesion of the resulting scaffolds were examined through a HEK 293 cell culture, and the results were analyzed through the MTT, DAPI staining, and SEM imaging techniques. Results revealed that the oriented knitted structure contributed to the increase in Young's modulus and the maximum strength of scaffolds as compared to the random samples. Moreover, this structure can also be a suitable alternative to the typical chemical means of increasing strength.
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Affiliation(s)
- M Dodel
- Amirkabir University of Technology Textile Engineering Department Tehran Iran
| | - N Hemmati Nejad
- Amirkabir University of Technology Textile Engineering Department Tehran Iran
| | - S H Bahrami
- Amirkabir University of Technology Textile Engineering Department Tehran Iran
| | - M Soleimani
- Tarbiat Modares University Hematology Department, Faculty of Medical Science Tehran Iran
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Ranjbar-Mohammadi M, Rabbani S, Bahrami SH, Joghataei MT, Moayer F. Antibacterial performance and in vivo diabetic wound healing of curcumin loaded gum tragacanth/poly(ε-caprolactone) electrospun nanofibers. Mater Sci Eng C Mater Biol Appl 2016; 69:1183-91. [PMID: 27612816 DOI: 10.1016/j.msec.2016.08.032] [Citation(s) in RCA: 156] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 07/23/2016] [Accepted: 08/12/2016] [Indexed: 12/11/2022]
Abstract
In this study we describe the potential of electrospun curcumin-loaded poly(ε-caprolactone) (PCL)/gum tragacanth (GT) (PCL/GT/Cur) nanofibers for wound healing in diabetic rats. These scaffolds with antibacterial property against methicillin resistant Staphylococcus aureus as gram positive bacteria and extended spectrum β lactamase as gram negative bacteria were applied in two forms of acellular and cell-seeded for assessing their capability in healing full thickness wound on the dorsum of rats. After 15days, pathological study showed that the application of GT/PCL/Cur nanofibers caused markedly fast wound closure with well-formed granulation tissue dominated by fibroblast proliferation, collagen deposition, complete early regenerated epithelial layer and formation of sweat glands and hair follicles. No such appendage formation was observed in the untreated controls during this duration. Masson's trichrome staining confirmed the increased presence of collagen in the dermis of the nanofiber treated wounds on day 5 and 15, while the control wounds were largely devoid of collagen on day 5 and exhibited less collagen amount on day 15. Quantification analysis of scaffolds on day 5 confirmed that, tissue engineered scaffolds with increased amount of angiogenesis number, granulation tissue area (μ(2)), fibroblast number, and decreased epithelial gap (μ) can be more effective compared to GT/PCL/Cur nanofibers.
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Affiliation(s)
| | - Shahram Rabbani
- Tehran Heart Center, Tehran University of Medical Sciences, Iran
| | - S Hajir Bahrami
- Textile engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - M T Joghataei
- Cellular and Molecular Research Center, Iran University of Medical Science, Tehran, Iran
| | - F Moayer
- Department of Pathobiology, Faculty of Veterinary Medicine, Karaj Branch, Islamic Azad University, Karaj, Iran
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Abstract
Chitosan-poly (vinyl alcohol) (Cs: PVA) (2:3) and poly (caprolactone)-chitosan-poly (vinyl alcohol) (PCL: Cs: PVA) (2:1:1.5) nanofibrous blend scaffolds were fabricated using the electrospinning technique in the authors' previous studies. The results of the previous studies confirmed the high biological properties of the scaffolds and their ability in healing of burn and excision wounds on rat model. In the present study, the biological scaffolds were applied on diabetic dorsum skin wounds and diabetic foot wound on rat models (n = 16). Macroscopic and microscopic investigations were carried out using digital images and haematoxylin and eosin (H&E) staining respectively, to measure the wound areas and to track wound healing rate. It was found that at all time points the areas of wounds treated with nanofibrous scaffolds were smaller compared with the controls. Pathological results showed much better healing efficacy for the test samples compared with the control ones. Pathological investigations proved the presence of more pronounced granulation tissues in the scaffold-treated wounds compared with the control ones. At 20 days post excision, the scaffold-treated groups achieved complete repair. The results indicated that Cs: PVA and PCL: Cs: PVA nanofibrous webs could be considered to be promising materials for burn, excision and diabetic wounds healing.
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Affiliation(s)
| | - S Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Shahram Rabbani
- Tehran Heart Center, Tehran University of Medical Science, Tehran, Iran
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31
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Ranjbar-Mohammadi M, Prabhakaran MP, Bahrami SH, Ramakrishna S. Gum tragacanth/poly(l-lactic acid) nanofibrous scaffolds for application in regeneration of peripheral nerve damage. Carbohydr Polym 2015; 140:104-12. [PMID: 26876833 DOI: 10.1016/j.carbpol.2015.12.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 11/19/2015] [Accepted: 12/08/2015] [Indexed: 02/06/2023]
Abstract
Nanofibrous nerve guides have gained huge interest in supporting the peripheral nerve regeneration due to their abilities to simulate the topography, mechanical, biological and extracellular matrix morphology of native tissue. Gum tragacanth (GT) is a biocompatible mixture of polysaccharides that has been used in biomedical applications. During this study, we fabricated aligned and random nanofibers from poly(l-lactic acid) and gum tragacanth (PLLA/GT) in various ratios (100:0, 75:25, and 50:50) by electrospinning. Scanning electron microscope demonstrated smooth and uniform nanofibers with diameters in the range of 733±65nm and 226±73nm for align PLLA and random PLLA/GT 50:50 nanofibers, respectively. FTIR analysis, contact angle, in vitro biodegradation and tensile measurements were carried out to evaluate the chemical and mechanical properties of the different scaffolds. PLLA/GT 75:25 exhibited the most balanced properties compared to other scaffolds and was used for in vitro culture of nerve cells (PC12) to assess the potential of using these scaffolds as a substrate for nerve regeneration. The cells were found to attach and proliferate on aligned PLLA/GT 75:25 scaffolds, expressing bi-polar neurite extensions and the orientation of nerve cells was along the direction of the fiber alignment. Results of 8 days of in vitro culture of PC12 cells on aligned PLLA/GT 75:25 nanofibers, showed 20% increase in cell proliferation compared to PLLA/GT 75:25 random nanofibers. PLLA/GT 75:25 aligned nanofibers acted as a favorable cue to support neurite outgrowth and nerve cell elongation compared with PLLA nanofibers. Our results showed that aligned PLLA/GT 75:25 nanofibers are promising substrates for application as bioengineered grafts for nerve tissue regeneration.
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Affiliation(s)
| | - Molamma P Prabhakaran
- Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore
| | - S Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran.
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore
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Ranjbar-Mohammadi M, Zamani M, Prabhakaran MP, Bahrami SH, Ramakrishna S. Electrospinning of PLGA/gum tragacanth nanofibers containing tetracycline hydrochloride for periodontal regeneration. Mater Sci Eng C Mater Biol Appl 2015; 58:521-31. [PMID: 26478340 DOI: 10.1016/j.msec.2015.08.066] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 08/23/2015] [Accepted: 08/27/2015] [Indexed: 12/19/2022]
Abstract
Controlled drug release is a process in which a predetermined amount of drug is released for longer period of time, ranging from days to months, in a controlled manner. In this study, novel drug delivery devices were fabricated via blend electrospinning and coaxial electrospinning using poly lactic glycolic acid (PLGA), gum tragacanth (GT) and tetracycline hydrochloride (TCH) as a hydrophilic model drug in different compositions and their performance as a drug carrier scaffold was evaluated. Scanning electron microscopy (SEM) results showed that fabricated PLGA, blend PLGA/GT and core shell PLGA/GT nanofibers had a smooth and bead-less morphology with the diameter ranging from 180 to 460 nm. Drug release studies showed that both the fraction of GT within blend nanofibers and the core-shell structure can effectively control TCH release rate from the nanofibrous membranes. By incorporation of TCH into core-shell nanofibers, drug release was sustained for 75 days with only 19% of burst release within the first 2h. The prolonged drug release, together with proven biocompatibility, antibacterial and mechanical properties of drug loaded core shell nanofibers make them a promising candidate to be used as drug delivery system for periodontal diseases.
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Affiliation(s)
| | - M Zamani
- Mechanical Engineering Department, National University of Singapore, Singapore; Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, Singapore
| | - M P Prabhakaran
- Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, Singapore.
| | - S Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran.
| | - S Ramakrishna
- Mechanical Engineering Department, National University of Singapore, Singapore; Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, Singapore
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Gholipour-Kanani A, Bahrami SH, Joghataie MT, Samadikuchaksaraei A, Ahmadi-Taftie H, Rabbani S, Kororian A, Erfani E. Tissue engineered poly(caprolactone)-chitosan-poly(vinyl alcohol) nanofibrous scaffolds for burn and cutting wound healing. IET Nanobiotechnol 2014; 8:123-31. [PMID: 25014084 DOI: 10.1049/iet-nbt.2012.0050] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Natural-synthetic blend nanofibres have recently attracted more interest because of the ability of achieving desirable properties. Poly(ε-caprolactone) (PCL)-chitosan (Cs)-poly(vinyl alcohol) (PVA) blend nanofibrous scaffolds were electrospun in 2:1:1.33 mass ratio of PCL:Cs:PVA. The presence of PCL in the blend leads to improvement in web hydrophobicity and helped the web to retain its integrity in aqueous media. The scaffolds were used in two forms of acellular and with mesenchymal stem cells. They were applied on burn (n = 12) and excisional cutting (n = 12) wounds on dorsum skin of rats. Macroscopic investigations were carried out to measure the wounds areas. It was found that the area of wounds that were treated with cell-seeded nanofibrous scaffolds were smaller compared to other samples. Pathological results showed much better healing performance for cell-seeded scaffolds followed by acellular scaffolds compared with control samples. All these results indicate that PCL:Cs:PVA nanofibrous web would be a proper material for burn and cutting wound healing.
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Affiliation(s)
- Adeleh Gholipour-Kanani
- Textile Engineering Department, Amirkabir University of Technology, No. 529, 424 Hafez Avenue, Tehran, Iran
| | - S Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology, No. 529, 424 Hafez Avenue, Tehran, Iran.
| | | | - Ali Samadikuchaksaraei
- Faculty of Allied Medicine, Department of Medical Biotechnology, University of Medical Sciences, Tehran, Iran
| | | | - Shahram Rabbani
- Tehran Heart Center, Tehran University of Medical Science, Tehran, Iran
| | - Alireza Kororian
- Cellular and Molecular Research Center, Iran University of Medical Science, Tehran, Iran
| | - Elham Erfani
- Cellular and Molecular Research Center, Iran University of Medical Science, Tehran, Iran
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Gholipour-Kanani A, Bahrami SH, Samadikuchaksaraei A. Novel Blend Scaffolds from Poly(caprolactone)Chitosan-Poly(vinyl alcohol): Physical, Morphological and Biological Studies. J BIOMATER TISS ENG 2014. [DOI: 10.1166/jbt.2014.1163] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ranjbar-Mohammadi M, Bahrami SH, Joghataei M. Fabrication of novel nanofiber scaffolds from gum tragacanth/poly(vinyl alcohol) for wound dressing application: In vitro evaluation and antibacterial properties. Materials Science and Engineering: C 2013; 33:4935-43. [DOI: 10.1016/j.msec.2013.08.016] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Revised: 07/01/2013] [Accepted: 08/13/2013] [Indexed: 11/28/2022]
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Affiliation(s)
| | | | - S. Hajir Bahrami
- Department of Engineering; Amirkabir University of Technology; Tehran; Iran
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Ranjbar-Mohammadi M, Hajir Bahrami S, Arami M. Eco-friendly grafting of natural biopolymer chitosan onto acylated wool fabrics using ultrasonic and study its properties. J Appl Polym Sci 2012. [DOI: 10.1002/app.38796] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Vahdat A, Bahrami SH, Arami M, Bahjat A, Tabakh F, Khairkhah M. Decoloration and mineralization of reactive dyes using electron beam irradiation, Part I: Effect of the dye structure, concentration and absorbed dose (single, binary and ternary systems). Radiat Phys Chem Oxf Engl 1993 2012. [DOI: 10.1016/j.radphyschem.2012.03.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Timnak A, Gharebaghi FY, Shariati RP, Bahrami SH, Javadian S, Emami SH, Shokrgozar MA. Fabrication of nano-structured electrospun collagen scaffold intended for nerve tissue engineering. J Mater Sci Mater Med 2011; 22:1555-1567. [PMID: 21526410 DOI: 10.1007/s10856-011-4316-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2010] [Accepted: 04/04/2011] [Indexed: 05/30/2023]
Abstract
Nerve tissue engineering is one of the most promising methods in nerve tissue regeneration. The development of blended collagen and glycosaminoglycan scaffolds can potentially be used in many soft tissue engineering applications. In this study an attempt was made to develop two types of random and aligned electrospun, nanofibrous scaffold using collagen and a common type of glycosaminoglycan. Ion chromatography test, MTT and attachment assays were conducted respectively to trace the release of glycosaminoglycan, and to investigate the biocompatibility of the scaffold. Cell cultural tests showed that the scaffold acted as a positive factor to support connective tissue cell outgrowth. The positive effect of fiber orientation on cell outgrowth organization was traced through SEM images. Porosity percentage calculation and tensile strength measurement of the webs specified analogous properties to the native neural matrix tissue. These results suggested that nanostructured porous collagen-glycosaminoglycan scaffold is a potential cell carrier in nerve tissue engineering.
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Affiliation(s)
- A Timnak
- Faculty of Biomedical Engineering, Amirkabir University of Technology, 424 Hafez Ave, 15875-4413 Tehran, Iran
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Abdolahifard M, Bahrami SH, Malek RMA. Surface Modification of PET Fabric by Graft Copolymerization with Acrylic Acid and Its Antibacterial Properties. ISRN Org Chem 2011; 2011:265415. [PMID: 24052819 PMCID: PMC3767365 DOI: 10.5402/2011/265415] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 02/15/2011] [Indexed: 11/23/2022]
Abstract
Graft copolymerization of acrylic acid (AA) onto Poly(ethylene terephthalate) (PET) fabrics with the aid of benzoyl peroxide was carried out. The effect of polymerization parameters on the graft yield was studied. Percent grafting was enhanced significantly by increasing benzoyl peroxide (BP) concentrations up to 3.84 g/lit and then decreased upon further increase in initiator concentration. Preswelling of PET leads to changes in its sorption-diffusion properties and favors an increase in the degree of grafting. The antibiotics treated grafted fabrics showed antibacterial properties towards gram-positive and gram-negative microorganisms. FTIR and SEM were used to characterize AA-grafted polyester fabrics.
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Affiliation(s)
- M Abdolahifard
- Textile Engineering Department, Amirkabir University of Technology, 424 Harez Avenue, Tehran 15914, Iran
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Mivehi L, Hajir Bahrami S, Malek RMA. Properties of polyacrylonitrile-N-(2-hydroxy) propyl-3-trimethylammonium chitosan chloride blend films and fibers. J Appl Polym Sci 2008. [DOI: 10.1002/app.28133] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sharifnejad F, Bahrami SH, Noorpanah P. Kinetics studies on copolymerization of acrylonitrile vinyl acids by solvent-water suspension polymerization. J Appl Polym Sci 2005. [DOI: 10.1002/app.21815] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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