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Mahdieh A, Motasadizadeh H, Maghsoudian S, Sabzevari A, Khalili F, Yeganeh H, Nyström B. Novel polyurethane-based ionene nanoparticles electrostatically stabilized with hyaluronic acid for effective gene therapy. Colloids Surf B Biointerfaces 2024; 236:113802. [PMID: 38382225 DOI: 10.1016/j.colsurfb.2024.113802] [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: 10/18/2023] [Revised: 01/29/2024] [Accepted: 02/13/2024] [Indexed: 02/23/2024]
Abstract
Gene therapy is considered to be a valuable strategy for effective cancer treatment. However, the development of effective delivery systems that can specifically deliver gene materials, such as siRNA to tumor tissues plays a critical role in cancer therapy. In the present study, we have developed a novel complex that is based on an electrostatic interaction between cationic polyurethane ionene (CPUI) nanoparticles and an anti-signal transducer and activator of transcription 3 (STAT3) siRNA. For active targeting, hyaluronic acid (HA) was used to coat the complexes, which significantly reduced the cytotoxicity of the blank nanocarriers while demonstrating high transport efficiency of the siRNA via the CD44-mediated endocytosis pathway in MCF-7 breast cancer cells. The targeted nanocarriers (HA/CPUI/siRNA) showed significantly higher cellular internalization in flow cytometry and confocal microscopy compared with the non-targeted system (CPUI/siRNA). In addition, the incorporation of HA on the surface of the complexes resulted in significantly greater suppression of the STAT3 gene compared to the corresponding non-targeted formulation. Whole-body fluorescence images showed more significant tumor accumulation of the targeted nanocarriers in 4T1 breast tumor-bearing mice. Therefore, HA/CPUI/siRNA nanocarriers are an interesting option for the siRNA-targeted treatment of breast cancer cells.
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Affiliation(s)
- Athar Mahdieh
- Department of Pharmacy, Section for Pharmaceutics and Social Pharmacy, University of Oslo, Oslo, Norway
| | - Hamidreza Motasadizadeh
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Samane Maghsoudian
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Sabzevari
- Polymer Faculty, Biomedical Engineering Department, Meybod University, Meybod, Yazd, Iran; Polymer Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Fereshte Khalili
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Yeganeh
- Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Bo Nyström
- Department of Chemistry, University of Oslo, Oslo, Norway.
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Mahdieh A, Yeganeh H, Motasadizadeh H, Nekoueifard E, Maghsoudian S, Hossein Ghahremani M, Nyström B, Dinarvand R. Waterborne polyurethane magnetic nanomicelles with magnetically governed functions for breast cancer therapy. Int J Pharm 2023; 645:123356. [PMID: 37661033 DOI: 10.1016/j.ijpharm.2023.123356] [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] [Received: 05/14/2023] [Revised: 08/22/2023] [Accepted: 08/26/2023] [Indexed: 09/05/2023]
Abstract
Drug delivery strategies aim to maximize a drug's therapeutic efficiency by increasing the drug's concentration at the target site while minimizing delivery to off-target tissues. There is a great deal of interest in using magnetic nanoparticles in combination with applied magnetic fields to selectively control drug accumulation and release in target tissue while minimizing effects on other tissues. In this study, a magnetic targeted drug delivery system based on waterborne polyurethane nanomicelles was prepared by encapsulating hydrophobic doxorubicin (DOX, model drug) and hydrophobic oleic acid-superparamagnetic nanoparticles (SPION-OA) into the hydrophobic core of waterborne polyurethane micelles (CPUM) using the solvent evaporation method. The prepared drug-loaded magnetomicelles (CPUM-DOX-SPION) had a spherical shape with an average diameter of 158 nm. The magnetomicelles showed superparamagnetic properties with excellent magnetic resonance imaging (MRI) contrast effects and T2 relaxation in vitro. In the absence and presence of a magnetic field, the cytocompatibility and cellular uptake of the samples were assessed by MTT assay and flow cytometry, respectively, and the cells were imaged with a confocal microscope. Application of the magnetic field increased cellular cytotoxicity and cellular uptake in association with improved DOX delivery. In addition, the in vivo study of tumor volume showed that tumor growth of the mice group treated with CPUM-DOX-SPION in the presence of an external magnetic field was significantly retarded, with no apparent loss of body weight, compared with the same magnetomicelles in the absence of the magnetic field and with free DOX at the same dose. Moreover, the in vivo MRI experiment indicated the potential of these magnetomicelles as a probe in MRI diagnosis for tumor targeting, and the results showed that magnetically guided delivery of CPUM-SPION magnetomicelles into tumors could significantly improve the targeting efficacy. All the results suggest that the prepared novel magnetomicelles will be promising theranostic systems for effective magnetically guided delivery of chemotherapeutic agents and image-guided personalized medicine.
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Affiliation(s)
- Athar Mahdieh
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 14174, Iran; Department of Pharmacy, Section for Pharmaceutics and Social Pharmacy, University of Oslo, N-0316, Oslo, Norway
| | - Hamid Yeganeh
- Iran Polymer and Petrochemical Institute, P.O. Box: 14965-115, Tehran, Iran.
| | - Hamidreza Motasadizadeh
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 14174, Iran; Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 14174, Iran
| | - Effat Nekoueifard
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 14174, Iran; Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Samane Maghsoudian
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 14174, Iran; Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 14174, Iran
| | - Mohammad Hossein Ghahremani
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Bo Nyström
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern N-0315, Oslo, Norway
| | - Rassoul Dinarvand
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 14174, Iran; Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 14174, Iran; Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom.
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Babaahmadi M, Yeganeh H. Poly(vinyl alcohol)-gelatin crosslinked by silane-functionalized guanidyl-hydroxyurethane oligomer as contact-killing non-leaching antibacterial wound dressings. Biomed Mater 2023; 18. [PMID: 37187185 DOI: 10.1088/1748-605x/acd5a0] [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] [Received: 03/12/2023] [Accepted: 05/15/2023] [Indexed: 05/17/2023]
Abstract
The present work aims to prepare efficient wound dressing with noncytotoxicity, proper mechanical strength, and the ability to preserve a hygienic environment over wounded skin tissue. To fulfill this goal, the synthesis of a novel silane crosslinking agent with antibacterial guanidinium chloride functional group is considered. The resulting reagent was applied to make a series of film-type stable crosslinked networks composed of poly(vinyl alcohol) and gelatin. The potential protection of wounds from external forces was confirmed, as these films had a very good tensile strength (16-31 MPa) and good elongation (54-101%) under dry conditions. The good dimensional strength of dressings was preserved after hydration with simulated wound exudates. Based on the calculated fluid handling capacity of the prepared dressings (2.43 to 3.54 g 10-1 cm-2 day-1), they were suitable for treating wounds with 'light' to 'moderate' exudate volume. All the prepared dressings showed very good biocompatibility, as determined by the high viability of fibroblast cells directly contacted with dressing (over 80%) or leachates extracted from them (over 90%). In addition, dressings functionalized with guanidinium groups could effectively kill representative gram-positive and gram-negative bacterial strains.
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Affiliation(s)
- Masoud Babaahmadi
- Iran Polymer and Petrochemical Research Institute, P.O.Box:14965/115, Tehran, Tehran, 14977-13115, Iran (the Islamic Republic of)
| | - Hamid Yeganeh
- Iran Polymer and Petrochemical Research Institute, P.O.Box: 14965/115, Tehran, Tehran, 14977-13115, Iran (the Islamic Republic of)
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Mahdieh A, Yeganeh H, Sande SA, Nyström B. Design of novel polyurethane-based ionene nanocarriers for cancer therapy: Synthesis, in-vitro, and in-vivo studies. Int J Pharm 2023; 635:122768. [PMID: 36841369 DOI: 10.1016/j.ijpharm.2023.122768] [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] [Received: 11/10/2022] [Revised: 02/01/2023] [Accepted: 02/19/2023] [Indexed: 02/26/2023]
Abstract
New strategies for constructing versatile nanocarriers are needed for cancer therapy to overcome the multiple challenges of targeted delivery. This work explores the advantages of polyurethane with main-chain quaternary ammonium salt moieties (ionene) as a novel carrier for targeted drug delivery. We have developed a novel cationic soybean oil-based polyurethane ionene nanocarrier (CPUI) that can act as an effective anticancer agent and efficiently deliver the anticancer drug 5-fluorouracil (5FU). We also report a potential anticancer drug delivery system targeting the folate receptor. In vitro experiments with blank CPUI carriers on the 4T1 (mouse breast cancer cell line) and the NIH-3T3 (mouse fibroblast cell line) revealed high cytotoxicity for the cancer cells but only low cytotoxicity for the normal fibroblast cells. The CPUI nanoparticles were readily loaded with 5FU (5FU-CPUI) in water using electrostatic interactions between the cationic quaternary ammonium groups of ionene and the anionic 5FU. The in vivo study in mice with tumors showed that the blank CPUI carriers significantly inhibited tumor growth, even more than the free drug (5FU). The inhibitory effect on tumor growth was slightly enhanced when the carriers were loaded with 5FU. The prepared nanoparticles had a high loading capacity of 41.8 %. Further enhancement of the inhibitory effect was observed when folic acid (FA) was added as a targeting moiety to the system via ion exchange with the bromine counterion of the quaternary ammonium moieties. The results suggest that the efficacy of FA-CPUI-5FU nanoparticles as vehicles for drug delivery can be enhanced via folate receptor (FR) mediated endocytosis in 4T1 cells and these novel nanocarriers may provide a potential platform for effective targeted drug delivery to tumor tissue and breast cancer therapy in the clinic.
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Affiliation(s)
- Athar Mahdieh
- Department of Pharmacy, Section for Pharmaceutics and Social Pharmacy, University of Oslo, Oslo, Norway
| | - Hamid Yeganeh
- Iran Polymer and Petrochemical Institute, Tehran, Iran.
| | - Sverre Arne Sande
- Department of Pharmacy, Section for Pharmaceutics and Social Pharmacy, University of Oslo, Oslo, Norway
| | - Bo Nyström
- Department of Chemistry, University of Oslo, Oslo, Norway.
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Abstract
PurposeThis study aims to examine the various factors and conditions pertaining to the rise of the sharing economy.Design/methodology/approachAfter framing the sharing economy concept, the study adopts a multidisciplinary approach and relies on the extant literature to analyze and classify eight major groups of factors behind the rise of the sharing economy.FindingsThe analysis indicates that the sharing economy (1) represents a significant paradigm shift emphasizing utilization rather than possession and relying on mutual trust, collaboration and reciprocity; (2) benefits from fundamental transformations such as the world population growth, global urbanization, surge in the world middle class and the convergence of tastes and preferences; (3) relies on technological innovation but is affected by socio-cultural and psychological conditions; (4) is driven by emerging trends in consumption, marketing and working conditions; (5) benefits from lax or nonexistent regulation and taxation; and (6) is recognized as clean and environmentally friendly.Originality/valueThis paper's chief contribution resides in adopting a multidisciplinary perspective to offer an in-depth analysis of the various types of factors behind the rise of the sharing economy.
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Gholami H, Yeganeh H. Soybean oil-derived non-isocyanate polyurethanes containing azetidinium groups as antibacterial wound dressing membranes. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110142] [Citation(s) in RCA: 4] [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: 10/22/2022]
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Rezapour-Lactoee A, Yeganeh H, Gharibi R, Milan PB. Enhanced healing of a full-thickness wound by a thermoresponsive dressing utilized for simultaneous transfer and protection of adipose-derived mesenchymal stem cells sheet. J Mater Sci Mater Med 2020; 31:101. [PMID: 33140201 DOI: 10.1007/s10856-020-06433-2] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
To boost the healing process in a full-thickness wound, a simple and efficient strategy based on adipose-derived mesenchymal stem cells (ADSCs) transplantation is described in this work. To increase the chance of ADSCs immobilization in the wound bed and prevent its migration, these cells are fully grown on the surface of a thermoresponsive dressing membrane under in vitro condition. Then, the cells sheet with their secreted extracellular matrix (ECM) is transferred to the damaged skin with the help of this dressing membrane. This membrane remains on wound bed and acts both as a cell sheet transfer vehicle, after external reduction of temperature, and protect wound during the healing process like a common wound dressing. The visual inspection of wounded skin (rat animal model) at selected time intervals shows a higher wound closure rate for ADSCs treated group. For this group of rats, the better quality of reconstructed tissue is approved by results of histological and immunohistochemical analysis since the higher length of the new epidermis, the higher thickness of re-epithelialization layer, a higher level of neovascularization and capillary density, and the least collagen deposition are detected in the healed tissue.
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Affiliation(s)
- Alireza Rezapour-Lactoee
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
- Department of Tissue Engineering, School of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - Hamid Yeganeh
- Iran Polymer and Petrochemical Institute, Tehran, P.O. Box:14965/115, Iran.
| | - Reza Gharibi
- Faculty of Chemistry, Kharazmi University, Tehran, Iran
| | - Peiman Brouki 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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Gholami H, Yeganeh H. Vegetable oil-based polyurethanes as antimicrobial wound dressings: in vitro and in vivo evaluation. Biomed Mater 2020; 15:045001. [DOI: 10.1088/1748-605x/ab7387] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Asadpour S, Yeganeh H, Khademi F, Ghanbari H, Ai J. Resveratrol-loaded polyurethane nanofibrous scaffold: viability of endothelial and smooth muscle cells. Biomed Mater 2019; 15:015001. [DOI: 10.1088/1748-605x/ab4e23] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Gharibi R, Yeganeh H, Kazemi S. Green and non-leaching anti-bacterial and cytocompatible coating with build-in quaternary ammonium salt derived from methoxysilane functionalized soybean oil. Materials Science and Engineering: C 2019; 99:887-899. [DOI: 10.1016/j.msec.2019.02.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 01/30/2019] [Accepted: 02/10/2019] [Indexed: 01/20/2023]
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Ghadimi A, Gharibi R, Yeganeh H, Sadatnia B. Ionic liquid tethered PEG-based polyurethane-siloxane membranes for efficient CO 2/CH 4 separation. Mater Sci Eng C Mater Biol Appl 2019; 102:524-535. [PMID: 31147023 DOI: 10.1016/j.msec.2019.04.057] [Citation(s) in RCA: 10] [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] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/23/2019] [Accepted: 04/20/2019] [Indexed: 10/27/2022]
Abstract
This study introduces a new polyethylene glycol (PEG) based polyurethane-siloxane membrane containing a quaternary ammonium ionic liquid for CO2/CH4 separation. The designed ionic liquid was prepared in two steps: (i) (3-chloropropyl)triethoxysilane (CPS) and N,N-dimethylpropyl amine (NDPA) were reacted with each other to form the methoxysilane-functionalized quaternary ammonium component, then (ii) chloride ion (Cl-) of the product was exchanged with tetrafluoroborate ion (BF4-). The resulting compound, a reactive methoxysilane-functionalized ionic liquid (Si-IL) was chemically anchored to the polymer backbone through the sol-gel hydrolysis and condensation reaction. Based on the permeation tests, the IL containing PEG-based polyurethane-siloxane membranes at different concentration of Si-IL (XSi-PPUIL) were found to be potential candidates for CO2 removal from CH4. For instance, the CO2/CH4 selectivity of XSi-PPUIL membranes with the Si-IL content of 10 wt% was 3.3-fold greater than the Si-IL free membranes; while, the CO2 permeability for IL tethered membranes was 9.7% higher than the corresponding IL-free membrane.
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Affiliation(s)
- Ali Ghadimi
- Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran.
| | - Reza Gharibi
- Faculty of Chemistry, Kharazmi University, Tehran, Iran.
| | - Hamid Yeganeh
- Department of Polyurethane, Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran
| | - Behrouz Sadatnia
- Department of Biomaterials, Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran
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Rabiee T, Yeganeh H, Gharibi R. Antimicrobial wound dressings with high mechanical conformability prepared through thiol-yne click photopolymerization reaction. ACTA ACUST UNITED AC 2019; 14:045007. [PMID: 30952142 DOI: 10.1088/1748-605x/ab16b8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Radical mediated photochemical thiol-yne click polymerization of thiol-terminated polyurethane prepolymers, with poly(ethylene glycol) soft segment at two different molecular weights, a propargyl terminated urethane crosslinker and silver salt was utilized to prepare versatile wound dressings containing well-dispersed Ag° nanoparticles produced via in situ reduction of Ag+ ions. The dressings with optimized chemical structure showed desirable fluid handling capacity (up to 4.84 g/10 cm2 d-1) to provide moist environment over damaged tissue. They were permeable to oxygen and carbon dioxide, therefore, the processes related to tissue regeneration of wound bed could be continued without problem. Their appropriate tensile strength (up to 3.87 MPa) and suitable conformability (less than 0.1% permanent set) enabled protection of damaged skin tissue from external physical forces during the healing process, even for wounds present at organs with a high degree of freedom. The proper cytocompatibility of the prepared dressings and their ability to support growth and proliferation of fibroblast cells as determined by wound scratch healing assay showed the potential utility of the dressings to motivate wound healing progression by migration of cells to the damaged area. In addition, these dressings with in situ formed silver nanoparticles exhibited promising antimicrobial activity against different bacterial and fungal strains, and consequently could encourage wound healing process by prevention from infection in the wound site.
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Affiliation(s)
- Tina Rabiee
- Iran Polymer and Petrochemical Institute, PO Box: 14965/115, Tehran, Iran
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Asadpour S, Yeganeh H, Ai J, Kargozar S, Rashtbar M, Seifalian A, Ghanbari H. Polyurethane-Polycaprolactone Blend Patches: Scaffold Characterization and Cardiomyoblast Adhesion, Proliferation, and Function. ACS Biomater Sci Eng 2018; 4:4299-4310. [DOI: 10.1021/acsbiomaterials.8b00848] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Shiva Asadpour
- Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, Azadi Square P.O.
Box 917794-8564 Mashhad, Iran
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine (SATiM), Tehran University of Medical Sciences (TUMS), Italia Street, 14177-55469 Tehran, Iran
| | - Hamid Yeganeh
- Iran Polymer and Petrochemical Institute, Pajuhesh Boulevard, P.O. Box 112/14975, 14977-13115 Tehran, Iran
| | - Jafar Ai
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine (SATiM), Tehran University of Medical Sciences (TUMS), Italia Street, 14177-55469 Tehran, Iran
| | - Saeid Kargozar
- Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, Azadi Square P.O.
Box 917794-8564 Mashhad, Iran
| | - Morteza Rashtbar
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine (SATiM), Tehran University of Medical Sciences (TUMS), Italia Street, 14177-55469 Tehran, Iran
| | - Alexander Seifalian
- Nanotechnology and Regenerative Medicine Commercialization Centre (Ltd), The London BioScience Innovation Centre, 2 Royal College Street, London, NW1 0NH, United Kingdom
| | - Hossein Ghanbari
- Department of Medical Nanotechnology, Regenerative Nanomedicine Research Group, SATiM, TUMS, Italia Street, 14177-55469 Tehran, Iran
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, North Kargar Ave, Tehran University of Medical Sciences, 14177-55469 Tehran, Iran
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Gharibi R, Ghadimi A, Yeganeh H, Sadatnia B, Gharedaghi M. Preparation and evaluation of hybrid organic-inorganic poly(urethane-siloxane) membranes with build-in poly(ethylene glycol) segments for efficient separation of CO2/CH4 and CO2/H2. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.11.058] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shams E, Yeganeh H, Naderi-Manesh H, Gharibi R, Mohammad Hassan Z. Polyurethane/siloxane membranes containing graphene oxide nanoplatelets as antimicrobial wound dressings: in vitro and in vivo evaluations. J Mater Sci Mater Med 2017; 28:75. [PMID: 28386852 DOI: 10.1007/s10856-017-5881-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 03/08/2017] [Indexed: 05/20/2023]
Abstract
Preserving wounds from bacterial and fungal infections and retaining optimum moist environment over damaged tissue are major challenges in wound care management. Application of wound dressings with antimicrobial activity and appropriate wound exudates handling ability is of particular significance for promoting wound healing. To this end, preparation and evaluation of novel wound dres1sings made from polyurethane/siloxane network containing graphene oxide (GO) nanoplatelets are described. The particular sol-gel hydrolysis/condensation procedure applied for the preparation of dressings leads to an appropriate distribution of GO nanoplatelets in the dressing membranes. The crosslinked siloxane domains and the presence of GO nanoplatelets within polymeric chains offered necessary mechanical strength for dressings. Meanwhile, a combination of hydrophilic and hydrophobic moieties in dressing backbone enabled suitable wound exudate management. Therefore, both of physical protection from external forces and preservation of moist environment over wound were attained by using the designed dressings. Widespread antimicrobial activity against gram-positive, gram-negative and fungal strains was recorded for the dressing with the optimum amount of GO, meanwhile, very good cytocompatibility against fibroblast cells was noted for these dressings. In vivo assay of the GO containing dressing on rat animal model reveals that the dressing can promote wound healing by complete re-epithelization, enhanced vascularization and collagen deposition on healed tissue.
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Affiliation(s)
- Elias Shams
- Department of Nanobiotechnology/Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, PO Box 14115-154, Tehran, Iran
| | - Hamid Yeganeh
- Iran Polymer and petrochemical Institute, PO Box 14965/115, Tehran, Iran.
| | - Hossein Naderi-Manesh
- Department of Nanobiotechnology/Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, PO Box 14115-154, Tehran, Iran.
| | - Reza Gharibi
- Faculty of Chemistry, Kharazmi University, Tehran, Iran
| | - Zuhair Mohammad Hassan
- Department of Immunology, School of Medical Science, Tarbiat Modares University, PO Box 14115-331, Tehran, Iran
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Burujeny SB, Yeganeh H, Atai M, Gholami H, Sorayya M. Bactericidal dental nanocomposites containing 1,2,3-triazolium-functionalized POSS additive prepared through thiol-ene click polymerization. Dent Mater 2016; 33:119-131. [PMID: 27887775 DOI: 10.1016/j.dental.2016.11.001] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 10/26/2016] [Accepted: 11/01/2016] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Deterioration of mechanical strength for the dental composite containing ionic bactericidal compounds restricts the widespread utilization of this class of useful materials. This problem is originated from the reduction of the intermolecular interaction of polymeric network due to plasticization effect of absorbed water molecules penetrated between the chain segments. The main goal of this study is the synthesis of the highly efficient bactericidal additive with low hydrophilicity and consequently the least adverse effect on the final mechanical strength of the dental composite. METHODS The bactericidal 1, 2, 3-triazolium functional groups were chemically anchored on the surface of hydrophobic POSS nanoparticles (Triazolium-POSS) and incorporated into a dental restorative system composed of a ternary thiol-allyl ether-methacrylate resin and glass fillers. A similar system was also prepared, in which the POSS additive was replaced with quaternized dimethyl aminoethyl methacrylate monomer (DMAEMA-BC). The chemical structure of POSS derivatives was evaluated by 1HNMR and FTIR spectra. The water uptake of dental composites was evaluated at days 1 and 14 after immersion into water. The bactericidal activity of composite specimens against Streptococcus mutans (ATCC 35668) was determined based on ASTM E 2180 - 07. The flexural properties of samples were investigated through three-point bending assay and the shrinkage-strain of photo-cured resins was measured using the bonded-disk technique. The degree of conversion (DC %) of methacrylate functions was followed by FTIR spectroscopy. MTT assay was performed to investigate the cytocompatibility of samples. RESULTS Regardless of the partial increase in water uptake for Triazolium-POSS-containing sample, this parameter was much favor than the composite made from DMAEMA-BC. Therefore, the lower decline in flexural properties was recorded under the wet condition for the former system. Incorporation of Triazolium-POSS had no significant effect on shrinkage strain and cytocompatibility of composite specimen, meanwhile, a higher degree of conversion of methacrylate functional groups was recorded. The Triazolium-POSS-containing nano composite showed significantly higher bactericidal activity against Streptococcus mutans than another studied model system. SIGNIFICANCE The new derivative of bactericidal POSS nanoparticles decorated with 1, 2, 3-Triazolium moieties is a highly efficient bactericidal compound. If Triazolium-POSS is incorporated into a proper dental resin formulation, it can provide a strong bactericidal activity for dental materials; in the meantime, it leads to minimum deterioration of their mechanical strength due to its low water uptake.
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Affiliation(s)
- Saeed Beigi Burujeny
- Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran; Biomedical Engineering Department, Faculty of Engineering, Islamic Azad University, Central Tehran Branch, Tehran, Iran
| | - Hamid Yeganeh
- Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran.
| | - Mohammad Atai
- Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran
| | - Hoshyar Gholami
- Department of Chemistry, Faculty of Science, University of Kurdistan, 66177-15175 Sanandaj, Iran
| | - Marziyeh Sorayya
- Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran
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Rezapour-Lactoee A, Yeganeh H, Ostad SN, Gharibi R, Mazaheri Z, Ai J. Thermoresponsive polyurethane/siloxane membrane for wound dressing and cell sheet transplantation: In-vitro and in-vivo studies. Mater Sci Eng C Mater Biol Appl 2016; 69:804-14. [PMID: 27612775 DOI: 10.1016/j.msec.2016.07.067] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 07/20/2016] [Accepted: 07/24/2016] [Indexed: 01/01/2023]
Abstract
Polyurethane/siloxane based wound dressing for transferring fibroblast cell sheet to wounded skin and ability to provide an optimum condition for cellular activity at damaged tissue was prepared in this research. The dressing was made thermoresponsive, via the introduction of a poly(N-isopropyl acrylamide) copolymer into the backbone of dressing. The ability of membrane for adhesion, growth, and proliferation of fibroblast cells was improved via surface modification with gelatin. The optimized dressing exhibited appropriate tensile strength (4.5MPa) and elongation at break (80%) to protect wound against physical forces. Due to controlled equilibrium water absorption of about 89% and water vapor transmission rate of 2040g/m(2)day, the dressing could maintain the favorable moist environment over moderate to high exuding wounds. The grown cell sheet on dressing membrane could easily roll up from the surface just with lowering the temperature. The in vivo study of the wound dressed with cell loaded membrane confirmed the accelerated healing and production of tissue with complete re-epithelization, enhanced vascularization, and increased collagen deposition on the damaged area.
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Affiliation(s)
- Alireza Rezapour-Lactoee
- Department of Tissue Engineering, School of Advanced Medical Technologies, Tehran University of Medical Sciences, 14177-55469 Tehran, Iran
| | - Hamid Yeganeh
- Iran Polymer and Petrochemical Institute, P.O. Box: 14965/115, Tehran, Iran.
| | - Seyed Nasser Ostad
- Department of Tissue Engineering, School of Advanced Medical Technologies, Tehran University of Medical Sciences, 14177-55469 Tehran, Iran; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, 16 Azar St, Enqelab Sq, Tehran 1417614411, Iran.
| | - Reza Gharibi
- Department of Tissue Engineering, School of Advanced Medical Technologies, Tehran University of Medical Sciences, 14177-55469 Tehran, Iran
| | - Zohreh Mazaheri
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Jafar Ai
- Department of Tissue Engineering, School of Advanced Medical Technologies, Tehran University of Medical Sciences, 14177-55469 Tehran, Iran
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Abstract
This article is a reflection on conceptual foundations of cultural management research. By relying on extant literature, a few conceptual underpinnings are examined and criticized, and some suggestions for improvement are proposed. Discussing such issues can be useful not only for advancing future research but also for achieving a more profound understanding of previous studies and their limitations.
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Affiliation(s)
| | - Zhan Su
- Laval University, Quebec, Canada
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Jabbarzadegan M, Rajayi H, Mofazzal Jahromi MA, Yeganeh H, Yousefi M, Muhammad Hassan Z, Majidi J. Application of arteether-loaded polyurethane nanomicelles to induce immune response in breast cancer model. Artif Cells Nanomed Biotechnol 2016; 45:808-816. [PMID: 27263545 DOI: 10.1080/21691401.2016.1178131] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
To concentrate a potent anticancer drug (Arteether) in tumor microenvironment, we encapsulated it in biodegradable and pH sensitive polyurethane (PU) nanomicelles (NMs). The nanocomplex was characterized by Fourier transform infrared (FTIR), dynamic light scattering (DLS). The loading capacity and release profile in pH of 5.4 and 7.4 were considered. The cytotoxicity effect was evaluated in vitro and in vivo settings. The level of IFN-γ and IL-4 cytokines of mice splenocytes were assessed by enzyme-linked immunosorbent assay (ELISA). The nanocomplex showed negative zeta charge of -26.2 mV, size of 42.30 nm and high loading capacity (92%). Release profile showed a faster rate of drug liberation at pH 5.4 as compared to that of pH 7.4. It indicated significant inhibitory effect on the growth of 4T1 cell line and increased IFN-γ level.
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Affiliation(s)
- Mona Jabbarzadegan
- a Department of Immunology, Faculty of Medical Sciences , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Hajar Rajayi
- b Department of Immunology, Faculty of Medical Sciences , Tarbiat Modares University , Tehran , Iran
| | | | - Hamid Yeganeh
- c Polyurethane Department, Faculty of Polymer Science , Iran Polymer and Petrochemical Institute , Tehran , Iran
| | - Mehdi Yousefi
- a Department of Immunology, Faculty of Medical Sciences , Tabriz University of Medical Sciences , Tabriz , Iran.,d Immunology Research Center, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Zuhair Muhammad Hassan
- b Department of Immunology, Faculty of Medical Sciences , Tarbiat Modares University , Tehran , Iran
| | - Jafar Majidi
- a Department of Immunology, Faculty of Medical Sciences , Tabriz University of Medical Sciences , Tabriz , Iran.,d Immunology Research Center, Tabriz University of Medical Sciences , Tabriz , Iran
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Baheiraei N, Gharibi R, Yeganeh H, Miragoli M, Salvarani N, Di Pasquale E, Condorelli G. Electroactive polyurethane/siloxane derived from castor oil as a versatile cardiac patch, part I: Synthesis, characterization,and myoblast proliferation and differentiation. J Biomed Mater Res A 2016; 104:1570. [PMID: 27111474 DOI: 10.1002/jbm.a.35712] [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] [Received: 07/28/2015] [Revised: 10/26/2015] [Accepted: 11/04/2015] [Indexed: 11/09/2022]
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21
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Baheiraei N, Gharibi R, Yeganeh H, Miragoli M, Salvarani N, Di Pasquale E, Condorelli G. Electroactive polyurethane/siloxane derived from castor oil as a versatile cardiac patch, part II: HL-1 cytocompatibility and electrical characterizations. J Biomed Mater Res A 2016; 104:1398-407. [PMID: 26822463 DOI: 10.1002/jbm.a.35669] [Citation(s) in RCA: 16] [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: 07/28/2015] [Accepted: 01/26/2016] [Indexed: 11/09/2022]
Abstract
In first part of this experiment, biocompatibility of the newly developed electroactive polyurethane/siloxane films containing aniline tetramer moieties was demonstrated with proliferation and differentiation of C2C12 myoblasts. Here we further assessed the cytocompatibility of the prepared samples with HL1-cell line, the electrophysiological properties and the patch clamp recording of the seeded cells over the selected electroactive sample. Presence of electroactive aniline tetramer in the structure of polyurethane/siloxane led to the increased expression of cardiac-specific genes of HL-1 cells involved in muscle contraction and electrical coupling. Our results showed that expression of Cx43, TrpT-2, and SERCA genes was significantly increased in conductive sample compared to tissue culture plate and the corresponding non-conductive analogous. The prepared materials were not only biocompatible in terms of cellular toxicity, but did not alter the intrinsic electrical characteristics of HL-1 cells. Embedding the electroactive moiety into the prepared films improved the properties of these polymeric cardiac construct through the enhanced transmission of electrical signals between the cells. Based on morphological observation, calcium imaging and electrophysiological recordings, we demonstrated the potential applicability of these materials for cardiac tissue engineering. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1398-1407, 2016.
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Affiliation(s)
- Nafiseh Baheiraei
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Reza Gharibi
- Department of Polyurethane, Iran Polymer and Petrochemical Institute, P.O. Box: 14965/115, Tehran, Iran
| | - Hamid Yeganeh
- Department of Polyurethane, Iran Polymer and Petrochemical Institute, P.O. Box: 14965/115, Tehran, Iran
| | - Michele Miragoli
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy.,CERT, Center of Excellence for Toxicological Research, Dept. of Clinical and Experimental Medicine, University of Parma, Italy
| | - Nicolò Salvarani
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy.,Institute of Genetic and Biomedical Research-UOS Milan, National Research Council, Milan, Italy
| | - Elisa Di Pasquale
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy.,Institute of Genetic and Biomedical Research-UOS Milan, National Research Council, Milan, Italy
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Sahraro M, Yeganeh H, Sorayya M. Guanidine hydrochloride embedded polyurethanes as antimicrobial and absorptive wound dressing membranes with promising cytocompatibility. Materials Science and Engineering: C 2016; 59:1025-1037. [DOI: 10.1016/j.msec.2015.11.038] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 11/04/2015] [Accepted: 11/13/2015] [Indexed: 10/22/2022]
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23
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Moradi M, Yeganeh H, Pazokifard S. Synthesis and assessment of novel anticorrosive polyurethane coatings containing an amine-functionalized nanoclay additive prepared by the cathodic electrophoretic deposition method. RSC Adv 2016. [DOI: 10.1039/c5ra26609b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cathodic electrophoretic deposition (CEPD) was utilized to cover a mild steel cathode in an aqueous solution consisting of a newly synthesized two-component one-pack waterborne polyurethane resin.
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24
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Yousefpour Marzbali M, Yari Khosroushahi A, Movassaghpour A, Yeganeh H. Polyurethane dispersion containing quaternized ammonium groups: An efficient nanosize gene delivery carrier for A549 cancer cell line transfection. Chem Biol Interact 2016; 244:27-36. [DOI: 10.1016/j.cbi.2015.11.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 10/29/2015] [Accepted: 11/25/2015] [Indexed: 12/13/2022]
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25
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Haghayegh M, Mirabedini SM, Yeganeh H. Preparation of microcapsules containing multi-functional reactive isocyanate-terminated-polyurethane-prepolymer as healing agent, part II: corrosion performance and mechanical properties of a self healing coating. RSC Adv 2016. [DOI: 10.1039/c6ra07574f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Stress–strain curves in three modes (intact, scratched and healed) for; (a) neat epoxy and (b) sample containing 5 wt% microcapsules. SEM micrographs of scratched area of; (c) neat epoxy film, and (d) film with 5 wt% microcapsule.
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Affiliation(s)
- M. Haghayegh
- Iran Polymer and Petrochemical Institute
- Tehran
- Iran
| | | | - H. Yeganeh
- Iran Polymer and Petrochemical Institute
- Tehran
- Iran
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26
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Baheiraei N, Gharibi R, Yeganeh H, Miragoli M, Salvarani N, Di Pasquale E, Condorelli G. Electroactive polyurethane/siloxane derived from castor oil as a versatile cardiac patch, part I: Synthesis, characterization, and myoblast proliferation and differentiation. J Biomed Mater Res A 2015; 104:775-787. [DOI: 10.1002/jbm.a.35612] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 10/26/2015] [Accepted: 11/04/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Nafiseh Baheiraei
- Department of Anatomy; Faculty of Medical Sciences, Tarbiat Modares University; Tehran Iran
| | - Reza Gharibi
- Department of Polyurethane, Iran Polymer and Petrochemical Institute, P.O. Box: 14965/115; Tehran Iran
| | - Hamid Yeganeh
- Department of Polyurethane, Iran Polymer and Petrochemical Institute, P.O. Box: 14965/115; Tehran Iran
| | - Michele Miragoli
- Humanitas Clinical and Research Center; Rozzano, Milan Italy
- CERT; Center of Excellence for Toxicological Research, University of Parma; Italy
| | - Nicolò Salvarani
- Humanitas Clinical and Research Center; Rozzano, Milan Italy
- Institute of Genetic and Biomedical Research-UOS Milan, National Research Council; Milan Italy
| | - Elisa Di Pasquale
- Humanitas Clinical and Research Center; Rozzano, Milan Italy
- Institute of Genetic and Biomedical Research-UOS Milan, National Research Council; Milan Italy
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27
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Gharibi R, Yeganeh H, Rezapour-Lactoee A, Hassan ZM. Stimulation of Wound Healing by Electroactive, Antibacterial, and Antioxidant Polyurethane/Siloxane Dressing Membranes: In Vitro and in Vivo Evaluations. ACS Appl Mater Interfaces 2015; 7:24296-311. [PMID: 26473663 DOI: 10.1021/acsami.5b08376] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
A series of novel polyurethane/siloxane-based wound dressing membranes was prepared through sol-gel reaction of methoxysilane end-functionalized urethane prepolymers composed of castor oil and ricinoleic methyl ester as well as methoxysilane functional aniline tetramer (AT) moieties. The samples were fully characterized and their physicochemical, mechanical, electrical, and biological properties were assayed. The biological activity of these dressings against fibroblast cells and couple of microbes was also studied. It was revealed that samples that displayed electroactivity by introduction of AT moieties showed a broad range of antimicrobial activity toward different microorganisms, promising antioxidant (radical scavenging) efficiency and significant activity for stimulation of fibroblast cell growth and proliferation. Meanwhile, these samples showed appropriate tensile strength and ability for maintaining a moist environment over a wound by controlled equilibrium water absorption and water vapor transmission rate. The selected electroactive dressing was subjected to an in vivo assay using a rat animal model and the wound healing process was monitored and compared with analogous dressing without AT moieties. The recorded results showed that the electroactive dressings induced an increase in the rate of wound contraction, promoted collagen deposition, and encouraged vascularization in the wounded area. On the basis of the results of in vitro and in vivo assays, the positive influence of designed dressings for accelerated healing of a wound model was confirmed.
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Affiliation(s)
- Reza Gharibi
- Department of Polyurethane, Iran Polymer and Petrochemical Institute , P.O. Box 14965-115, Tehran, Iran
| | - Hamid Yeganeh
- Department of Polyurethane, Iran Polymer and Petrochemical Institute , P.O. Box 14965-115, Tehran, Iran
| | - Alireza Rezapour-Lactoee
- Department of Tissue Engineering, School of Advanced Medical Technologies, Tehran University of Medical Sciences , 14177-55469 Tehran, Iran
| | - Zuhair M Hassan
- Department of Immunology, School of Medical Sciences, Tarbiat Modares University , P.O. Box 14115-331, Tehran, Iran
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28
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Baheiraei N, Yeganeh H, Ai J, Gharibi R, Ebrahimi-Barough S, Azami M, Vahdat S, Baharvand H. Preparation of a porous conductive scaffold from aniline pentamer-modified polyurethane/PCL blend for cardiac tissue engineering. J Biomed Mater Res A 2015; 103:3179-87. [DOI: 10.1002/jbm.a.35447] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Revised: 02/21/2015] [Accepted: 03/10/2015] [Indexed: 02/01/2023]
Affiliation(s)
- Nafiseh Baheiraei
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Technologies; Tehran University of Medical Sciences; Tehran 1417755469 Iran
- Department of Tissue Engineering, Reproductive Biotechnology Research Center; Avicenna Research Institute; ACECR Tehran Iran
| | - Hamid Yeganeh
- Department of Polyurethane; Iran Polymer and Petrochemical Institute; P.O. Box: 14965/115 Tehran Iran
| | - Jafar Ai
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Technologies; Tehran University of Medical Sciences; Tehran 1417755469 Iran
| | - Reza Gharibi
- Department of Polyurethane; Iran Polymer and Petrochemical Institute; P.O. Box: 14965/115 Tehran Iran
| | - Somayeh Ebrahimi-Barough
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Technologies; Tehran University of Medical Sciences; Tehran 1417755469 Iran
| | - Mahmoud Azami
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Technologies; Tehran University of Medical Sciences; Tehran 1417755469 Iran
| | - Sadaf Vahdat
- Department of Stem Cells and Developmental Biology at the Cell Science Research Center; Royan Institute for Stem Cell Biology and Technology, ACECR; Tehran Iran
- Department of Biotechnology; College of Science, University of Tehran; Tehran Iran
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology at the Cell Science Research Center; Royan Institute for Stem Cell Biology and Technology, ACECR; Tehran Iran
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29
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Beigi Burujeny S, Atai M, Yeganeh H. Assessments of antibacterial and physico-mechanical properties for dental materials with chemically anchored quaternary ammonium moieties: thiol-ene-methacrylate vs. conventional methacrylate system. Dent Mater 2015; 31:244-61. [PMID: 25605414 DOI: 10.1016/j.dental.2014.12.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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: 06/03/2014] [Revised: 11/09/2014] [Accepted: 12/16/2014] [Indexed: 01/18/2023]
Abstract
OBJECTIVE Fabrication of low shrinkage stress and strain dental resins containing highly available immobilized bactericidal moieties has been reported. The goal of this study is producing dental restorative materials with long-last antibacterial activity and reduced secondary caries. It is anticipated that antibacterial properties of quaternary ammonium moieties chemically immobilized in the backbone of dental resins is directly depended on accessibility of these functions. In the present study the antibacterial effect of a series of antibacterial monomers polymerized in a ternary thiol-ene-methacrylate system were compared with corresponding classical methacrylate system against Streptococcus mutans (an oral bacteria Strain). Physical and mechanical properties of dental materials obtained from these two systems were also evaluated and compared. METHODS The viscosities of the resin matrixes were measured on a MCR 300 rheometer. Degree of conversion (DC%) of monomers was measured using FTIR spectroscopy. The shrinkage-strain of photocured resins was measured using the bonded-disk technique. A universal testing machine combined with a stress measurement device was utilized to measure the polymerization-induced shrinkage stress. Viscoelastic properties of the samples were also determined by dynamic mechanical thermal analysis (DMTA). Assessment of antibacterial properties was performed through agar diffusion test (AD) to confirm non-release behavior of chemically anchored moieties. Quantitative assay of antibacterial activity was evaluated through direct contact test (DCT) against S. mutans. Direct contact cytotoxicity assay with fibroblast cell line L-929 was also performed to find more insight regarding cytotoxicity of the antibacterial matrixes. The data were analyzed and compared by ANOVA and Tukey HSD tests (significance level=0.05). RESULTS Neat methacrylate systems had significantly higher viscosity than thiol-ene-methacrylate analogous. The degree of conversion of methacrylate moieties in thiol-ene-methacrylate system was improved in comparison to conventional methacrylate system. Shrinkage stress and strain of thiol-ene-methacrylate system was lower than the neat methacrylate system. The thiol-ene-methacrylate systems show increased homogeneity and decreased glass transition temperature (Tg) and crosslink density (νc) in comparison to the neat methacrylate-based resins. The incorporated monofuctional quaternized monomer reduces degree of conversion, shrinkage stress and crosslink density of matrix. The results showed significant improvement in antibacterial activity and cytocompatibility of dental materials obtained from thiol-ene polymerization system. SIGNIFICANCE It was shown that with proper control of monomers molar ratio, significant improvement in antibacterial activity and cytocompatibility as well as acceptable mechanical properties can be attained for dental resins prepared through the application of thiol-ene polymerization methodology.
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Affiliation(s)
- Saeed Beigi Burujeny
- Iran Polymer and Petrochemical Institute, PO Box 14965-115, Tehran 1497713115, Iran
| | - Mohammad Atai
- Iran Polymer and Petrochemical Institute, PO Box 14965-115, Tehran 1497713115, Iran
| | - Hamid Yeganeh
- Iran Polymer and Petrochemical Institute, PO Box 14965-115, Tehran 1497713115, Iran.
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Abdali Z, Yeganeh H, Solouk A, Gharibi R, Sorayya M. Thermoresponsive antimicrobial wound dressings via simultaneous thiol-ene polymerization and in situ generation of silver nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra11618j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Thermoresponsive and antimicrobial wound dressing via thiol-ene polymerization reaction.
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Affiliation(s)
- Zahra Abdali
- Biomedical Engineering Faculty
- Amirkabir University of Technology
- Tehran
- Iran
| | | | - Atefeh Solouk
- Biomedical Engineering Faculty
- Amirkabir University of Technology
- Tehran
- Iran
| | - Reza Gharibi
- Iran Polymer and Petrochemical Institute
- Tehran
- Iran
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31
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Shaneh S, Shokrolahi F, Shokrollahi P, Yeganeh H, Seyedjafari E, Ardeshirylajimi A, Omidian H. Improved immobilization of gelatin on a modified polyurethane urea. J BIOACT COMPAT POL 2014. [DOI: 10.1177/0883911514558368] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this study, polyurethane urea was surface-modified to elevate cell recognition through immobilization of bioactive gelatin. The poly(urethane urea) was synthesized using poly(ε-caprolactone) diol in the absence of a chain extender. The synthesized polyurethane urea was then functionalized with gelatin (gelatin-grafted poly(urethane urea)) via aminolysis. Chemical changes at the polyurethane urea surface were monitored using titration, water contact angle. Fourier transform infrared, and zeta potential measurements. Significantly larger amounts of gelatin were grafted on the polyurethane urea surface compared to those previously reported for poly(ε-caprolactone) diol (three times more) and polyurethanes (two times more), while the mechanical properties were not compromised. Proliferation of human adipose–derived mesenchymal stem cells on the polyurethane urea and the gelatin-grafted polyurethane urea was evaluated through MTT assay. Although both samples enhanced human adipose–derived mesenchymal stem cells’ proliferation, gelatin-grafted polyurethane urea supported human adipose–derived mesenchymal stem cells’ proliferation at a remarkably higher rate.
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Affiliation(s)
- Shideh Shaneh
- Department of Biomaterials, Faculty of Science, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Fatemeh Shokrolahi
- Department of Biomaterials, Faculty of Science, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Parvin Shokrollahi
- Department of Biomaterials, Faculty of Science, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Hamid Yeganeh
- Department of Polyurethane, Faculty of Science, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | | | | | - Hossein Omidian
- College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, USA
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32
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Yeganeh H. A Weighted, Mahalanobian, and Asymmetrical Approach to Calculating National Cultural Distance. Journal of International Management 2014. [DOI: 10.1016/j.intman.2014.06.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gharibi R, Yeganeh H, Gholami H, Hassan ZM. Aniline tetramer embedded polyurethane/siloxane membranes and their corresponding nanosilver composites as intelligent wound dressing materials. RSC Adv 2014. [DOI: 10.1039/c4ra11454j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Alishiri M, Shojaei A, Abdekhodaie MJ, Yeganeh H. Synthesis and characterization of biodegradable acrylated polyurethane based on poly(ε-caprolactone) and 1,6-hexamethylene diisocyanate. Mater Sci Eng C Mater Biol Appl 2014; 42:763-73. [PMID: 25063178 DOI: 10.1016/j.msec.2014.05.056] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 04/30/2014] [Accepted: 05/29/2014] [Indexed: 10/25/2022]
Abstract
A series of biodegradable acrylic terminated polyurethanes (APUs) based on poly(ε-caprolactone) diol (PCL), aliphatic 1,6-hexamethylene diisocyanate (HDI) and hydroxyethyl methyl acrylate (HEMA) was synthesized as potential materials for hard tissue biomedical applications. PCLs with low molecular weights of 1000 and 2,000 g/mol were employed to provide different amounts of end capped urethane acrylate in APUs. To control crosslink density, a mixture of two different reactive diluents including mono-functional HEMA and bi-functional ethylene glycol dimethacrylate (EGDMA) with different weight ratios was incorporated into the APUs, called here PUAs. Morphological characteristics and mechanical properties were investigated using X-ray diffraction (XRD), differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). DMA results indicated some degree of microphase separation between hard and soft segments; however, the microphase separation is more prominent for PUAs with higher molecular weight PCL. It was also found that the degree of crosslinking dominated greatly the formation of crystalline structure. PUAs with low crosslink density exhibited crystalline microstructure. The results also indicated that the mechanical properties of PUAs were governed considerably by crystalline microstructure, and hard segment content. All PUAs demonstrated hydrophobic behavior and were able to be degraded hydrolytically. The degradation process was closely related to the microstructure and surface tension of PUAs.
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Affiliation(s)
- M Alishiri
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, P. O. Box 11155-9465, Tehran, Iran
| | - A Shojaei
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, P. O. Box 11155-9465, Tehran, Iran.
| | - M J Abdekhodaie
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, P. O. Box 11155-9465, Tehran, Iran
| | - H Yeganeh
- Department of Polyurethane, Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran
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Shokrolahi F, Yeganeh H. Soft segment composition and its influence on phase-separated morphology of PCL/PEG-based poly(urethane urea)s. Iran Polym J 2014. [DOI: 10.1007/s13726-014-0245-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Akbarian-Feizi L, Mehdipour-Ataei S, Yeganeh H. Investigation on the Preparation of New Sulfonated Polyimide Fuel Cell Membranes in Organic and Ionic Liquid Media. INT J POLYM MATER PO 2013. [DOI: 10.1080/00914037.2013.812086] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Bakhshi H, Yeganeh H, Mehdipour-Ataei S, Solouk A, Irani S. Polyurethane Coatings Derived from 1,2,3-Triazole-Functionalized Soybean Oil-Based Polyols: Studying their Physical, Mechanical, Thermal, and Biological Properties. Macromolecules 2013. [DOI: 10.1021/ma401554c] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Hadi Bakhshi
- Polyurethane
Department, Iran Polymer and Petrochemical Institute, P.O. Box: 14965-115, Tehran, Iran
| | - Hamid Yeganeh
- Polyurethane
Department, Iran Polymer and Petrochemical Institute, P.O. Box: 14965-115, Tehran, Iran
| | - Shahram Mehdipour-Ataei
- Polyurethane
Department, Iran Polymer and Petrochemical Institute, P.O. Box: 14965-115, Tehran, Iran
| | - Atefeh Solouk
- Biomedical
Engineering Faculty, Amirkabir University of Technology, Tehran, Iran
| | - Shiva Irani
- Biology
Department, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Beigi S, Yeganeh H, Atai M. Evaluation of fracture toughness and mechanical properties of ternary thiol–ene–methacrylate systems as resin matrix for dental restorative composites. Dent Mater 2013; 29:777-87. [DOI: 10.1016/j.dental.2013.04.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Accepted: 04/25/2013] [Indexed: 10/26/2022]
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Yari A, Yeganeh H, Bakhshi H, Gharibi R. Preparation and characterization of novel antibacterial castor oil-based polyurethane membranes for wound dressing application. J Biomed Mater Res A 2013; 102:84-96. [DOI: 10.1002/jbm.a.34672] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Revised: 02/09/2013] [Accepted: 02/19/2013] [Indexed: 02/02/2023]
Affiliation(s)
- Abbas Yari
- Polyurethane Department; Iran Polymer and Petrochemical Institute; Tehran Iran
| | - Hamid Yeganeh
- Polyurethane Department; Iran Polymer and Petrochemical Institute; Tehran Iran
| | - Hadi Bakhshi
- Polyurethane Department; Iran Polymer and Petrochemical Institute; Tehran Iran
| | - Reza Gharibi
- Polyurethane Department; Iran Polymer and Petrochemical Institute; Tehran Iran
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Abstract
PurposeThe purpose of this paper is to offer a compound index of cultural dimensions.Design/methodology/approachFirst, the idea of the compound index is described. Then, by integrating Hofstede's and Inglehart's frameworks, the Compound Culture Index (CCI) is constructed, its scores for different countries are computed, and its robustness is validated. Finally, the theoretical implications and practical applications are discussed and some avenues for future research are pointed out.FindingsA Compound Culture Index (CCI) on the basis of Hofstede's and Inglehart's frameworks is conceptualized, computed, and validated.Research limitations/implicationsCulture is a very complex concept and cannot be fully grasped by a few dimensions or a dichotomous index. Hofstede's and Inglehart's models have some theoretical/operational differences and correspond to dissimilar time frames that may make their integration imperfect. Due to lack of data, Hofstede's fifth dimension (Timer Orientation) was not included in the calculation of the CCI.Practical implicationsThe CCI bridges Hofstede's and Inglehart's cultural frameworks and offers an integrative measure of national culture. In addition, the CCI represents a robust measure that can be conveniently employed in empirical research.Originality/valueThe CCI offers a methodologically novel, theoretically defensible, and operationally robust approach to measuring national cultures.
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Bakhshi H, Yeganeh H, Mehdipour-Ataei S. Synthesis and evaluation of antibacterial polyurethane coatings made from soybean oil functionalized with dimethylphenylammonium iodide and hydroxyl groups. J Biomed Mater Res A 2012; 101:1599-611. [DOI: 10.1002/jbm.a.34461] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 09/22/2012] [Accepted: 09/24/2012] [Indexed: 11/07/2022]
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Yari A, Yeganeh H, Bakhshi H. Synthesis and evaluation of novel absorptive and antibacterial polyurethane membranes as wound dressing. J Mater Sci Mater Med 2012; 23:2187-2202. [PMID: 22639152 DOI: 10.1007/s10856-012-4683-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Accepted: 05/11/2012] [Indexed: 06/01/2023]
Abstract
Preparation and evaluation of new polyurethane membranes for wound dressing application was considered in this work. The membranes were prepared through amine curing reaction of epoxy-terminated polyurethane prepolymers and an antibacterial epoxy-functional quaternary ammonium compound (glycidyltriehtylammonium chloride, GTEACl. To render the prepared membranes to be highly absorptive of wound exudates, poly (ethylene glycol) polyols were introduced into the polyurethane networks. Evaluation of biocompatibity via both MTT assay and direct contact with two different cell lines (fibroblast and epidermal keratinocytes) reveled that membranes with appropriate loading of GTEACl showed proper biocompatibility. Promising antibacterial activity of the prepared membranes against Staphylococcus aureus and Escherichia coli bacteria was confirmed by both agar diffusion and shaking flask methods. The membranes with balanced crosslink density and ionic groups' concentration possessed appropriate hydrophilicity and water vapor transmission rate; therefore, they could prevent the accumulation of exudates and decrease the surface inflammation in the wounded area.
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Affiliation(s)
- Abbas Yari
- Department of Polyurethane, Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran
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Bakhshi H, Yeganeh H, Mehdipour-Ataei S, Shokrgozar MA, Yari A, Saeedi-Eslami SN. Synthesis and characterization of antibacterial polyurethane coatings from quaternary ammonium salts functionalized soybean oil based polyols. Mater Sci Eng C Mater Biol Appl 2012; 33:153-64. [PMID: 25428057 DOI: 10.1016/j.msec.2012.08.023] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2012] [Revised: 07/18/2012] [Accepted: 08/11/2012] [Indexed: 12/15/2022]
Abstract
In this study, a simple and versatile synthetic approach was developed to prepare bactericidal polyurethane coatings. For this purpose, introduction of both quaternary ammonium salts (QASs), with well-known antibacterial activity, and reactive hydroxyl groups on to the backbone of soybean oil was considered. Epoxidized soybean oil was reacted with diethylamine and the intermediate tertiary amine containing polyol was reacted with two different alkylating agents, methyl iodide and benzyl chloride, to produce MQAP and BQAP, respectively. These functional polyols were reacted with different diisocyanate monomers to prepare polyurethane coatings. Depending on the structure of monomers used for the preparation of polyurethane coatings, initial modulus, tensile strength and elongation at break of samples were in the ranges of 122-339 MPa, 4.6-12.4 MPa and 8.4-46%, respectively. Polyurethane coatings based on isophorone diisocyanate showed proper mechanical properties and adhesion strength (0.41 MPa) for coating application. Study of fibroblast cells interaction with prepared polyurethanes showed promising cells viability in the range of 78-108%. Meanwhile, MQAP based samples with higher concentration of QASs showed better adhesion strength, surface hydrophilicity and antibacterial activity (about 95% bacterial reduction). Therefore, these materials can find applications as bactericidal coating for biomedical devices and implants.
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Affiliation(s)
- Hadi Bakhshi
- Polyurethane Department, Iran Polymer and Petrochemical Institute, P.O. Box: 14965-115, Tehran, Iran
| | - Hamid Yeganeh
- Polyurethane Department, Iran Polymer and Petrochemical Institute, P.O. Box: 14965-115, Tehran, Iran.
| | - Shahram Mehdipour-Ataei
- Polyurethane Department, Iran Polymer and Petrochemical Institute, P.O. Box: 14965-115, Tehran, Iran
| | | | - Abbas Yari
- Polyurethane Department, Iran Polymer and Petrochemical Institute, P.O. Box: 14965-115, Tehran, Iran
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Abbas-Abadi MS, Haghighi MN, Yeganeh H. Effect of the melt flow index and melt flow rate on the thermal degradation kinetics of commercial polyolefins. J Appl Polym Sci 2012. [DOI: 10.1002/app.36775] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Khosroushahi AY, Naderi-Manesh H, Yeganeh H, Barar J, Omidi Y. Novel water-soluble polyurethane nanomicelles for cancer chemotherapy: physicochemical characterization and cellular activities. J Nanobiotechnology 2012; 10:2. [PMID: 22221539 PMCID: PMC3286383 DOI: 10.1186/1477-3155-10-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Accepted: 01/05/2012] [Indexed: 02/05/2023] Open
Abstract
Background Efficient delivery of anticancer chemotherapies such as paclitaxel (PTX) can improve treatment strategy in a variety of tumors such as breast and ovarian cancers. Accordingly, researches on polymeric nanomicelles continue to find suitable delivery systems. However, due to biocompatibility concerns, a few micellar nanoformulations have exquisitely been translated into clinical uses. Here, we report the synthesis of novel water-soluble nanomicelles using bioactive polyurethane (PU) polymer and efficient delivery of PTX in the human breast cancer MCF-7 cells. Results The amphiphilic polyurethane was prepared through formation of urethane bounds between hydroxyl groups in poly (tetramethylene ether) glycol (PTMEG) and dimethylol propionic acid with isocyanate groups in toluene diisocyanate (TDI). The free isocyanate groups were blocked with phenol, while the free carboxyl groups of dimethylol propionic acid were reacted with triethylamine to attain ionic centers in the polymer backbone. These hydrophobic PTMEG blocks displayed self-assembly forming polymeric nanomicelles in water. The PTX loaded PU nanomicelles showed suitable physical stability, negative zeta potential charge (-43) and high loading efficiency (80%) with low level of critical micelle concentration (CMC). In vitro drug release profile showed a faster rate of drug liberation at pH 5.4 as compared to that of pH 7.4, implying involvement of a pH-sensitive mechanism for drug release from the nanomicelles. The kinetic of release exquisitely obeyed the Higuchi model, confirming involvement of diffusion and somewhat erosion at pH 5.4. These nanomicelles significantly inhibited the growth and proliferation of the human breast cancer MCF-7 cells, leading them to apoptosis. The real time RT-PCR analysis confirmed the activation of apoptosis as result of liberation of cytochrome c in the cells treated with the PTX loaded PU nanomicelles. The comet assay analysis showed somewhat DNA fragmentation in the treated cells. Conclusions Based upon these findings, we propose that the bioactive waterborne polyurethane nanomicelles can be used as an effective nanocarrier for delivery of anticancer chemotherapies such as paclitaxel.
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Akbarian-Feizi L, Mehdipour-Ataei S, Yeganeh H. Synthesis of new sulfonated copolyimides in organic and ionic liquid media for fuel cell application. J Appl Polym Sci 2011. [DOI: 10.1002/app.35136] [Citation(s) in RCA: 13] [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: 11/08/2022]
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Yeganeh H, Su Z. The effects of cultural orientations on preferred compensation policies. The International Journal of Human Resource Management 2011. [DOI: 10.1080/09585192.2011.588036] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Shokrolahi F, Yeganeh H, Mirzadeh H. Simple and versatile method for the one-pot synthesis of segmented poly(urethane urea)s via in situ
-formed AB-type macromonomers. POLYM INT 2010. [DOI: 10.1002/pi.2992] [Citation(s) in RCA: 9] [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: 11/05/2022]
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Jamshidi S, Yeganeh H, Mehdipour-Ataei S. Preparation and properties of one-pack polybenzoxazine-modified polyurethanes with improved thermal stability and electrical insulating properties. POLYM INT 2010. [DOI: 10.1002/pi.2921] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [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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