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Xu H, Zhang Y, Ma J, Miao H, Chen S, Gao S, Rong H, Deng L, Zhang J, Dong A, Li S. Preparation and characterization of a polyurethane-based sponge wound dressing with a superhydrophobic layer and an antimicrobial adherent hydrogel layer. Acta Biomater 2024; 181:235-248. [PMID: 38692469 DOI: 10.1016/j.actbio.2024.04.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 04/21/2024] [Accepted: 04/25/2024] [Indexed: 05/03/2024]
Abstract
Bacterial infection poses a significant impediment in wound healing, necessitating the development of dressings with intrinsic antimicrobial properties. In this study, a multilayered wound dressing (STPU@MTAI2/AM1) was reported, comprising a surface-superhydrophobic treated polyurethane (STPU) sponge scaffold coupled with an antimicrobial hydrogel. A superhydrophobic protective outer layer was established on the hydrophilic PU sponge through the application of fluorinated zinc oxide nanoparticles (F-ZnO NPs), thereby resistance to environmental contamination and bacterial invasion. The adhesive and antimicrobial inner layer was an attached hydrogel (MTAI2/AM1) synthesized through the copolymerization of N-[2-(methacryloyloxy)ethyl]-N, N, N-trimethylammonium iodide and acrylamide, exhibits potent adherence to dermal surfaces and broad-spectrum antimicrobial actions against resilient bacterial strains and biofilm formation. STPU@MTAI2/AM1 maintained breathability and flexibility, ensuring comfort and conformity to the wound site. Biocompatibility of the multilayered dressing was demonstrated through hemocompatibility and cytocompatibility studies. The multilayered wound dressing has demonstrated the ability to promote wound healing when addressing MRSA-infected wounds. The hydrogel layer demonstrates no secondary damage when peeled off compared to commercial polyurethane sponge dressing. The STPU@MTAI2/AM1-treated wounds were nearly completely healed by day 14, with an average wound area of 12.2 ± 4.3 %, significantly lower than other groups. Furthermore, the expression of CD31 was significantly higher in the STPU@MTAI2/AM1 group compared to other groups, promoting angiogenesis in the wound and thereby contributing to wound healing. Therefore, the prepared multilayered wound dressing presents a promising therapeutic candidate for the management of infected wounds. STATEMENT OF SIGNIFICANCE: Healing of chronic wounds requires avoidance of biofouling and bacterial infection. However developing a wound dressing which is both anti-biofouling and antimicrobial is a challenge. A multilayered wound dressing with multifunction was developed. Its outer layer was designed to be superhydrophobic and thus anti-biofouling, and its inner layer was broad-spectrum antimicrobial and could inhibit biofilm formation. The multilayered wound dressing with adhesive property could easily be removed from the wound surface preventing the cause of secondary damage. The multilayered wound dressing has demonstrated good abilities to promote MRSA-infected wound healing and presents a viable treatment for MRSA-infected wound.
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Affiliation(s)
- Hang Xu
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, China
| | - Yufeng Zhang
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, China
| | - Jinzhu Ma
- NMPA Key Laboratory for Quality Evaluation of Non-active Implant Devices, Tianjin, 300384, China
| | - Hui Miao
- NMPA Key Laboratory for Quality Evaluation of Non-active Implant Devices, Tianjin, 300384, China
| | - Shangliang Chen
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, China
| | - Shangdong Gao
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, China; Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300350, China
| | - Hui Rong
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, China
| | - Liandong Deng
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, China
| | - Jianhua Zhang
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, China; Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300350, China
| | - Anjie Dong
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, China.
| | - Shuangyang Li
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, China.
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Jung YS, Lee S, Park J, Shin EJ. Synthesis of Novel Shape Memory Thermoplastic Polyurethanes (SMTPUs) from Bio-Based Materials for Application in 3D/4D Printing Filaments. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1072. [PMID: 36770079 PMCID: PMC9921888 DOI: 10.3390/ma16031072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/17/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Bio-based thermoplastic polyurethanes have attracted increasing attention as advanced shape memory materials. Using the prepolymer method, novel fast-responding shape memory thermoplastic polyurethanes (SMTPUs) were prepared from 100% bio-based polyester polyol, poly-propylene succinate derived from corn oil, diphenyl methane diisocyanate, and bio-based 1,3-propanediol as a chain extender. The morphologies of the SMTPUs were investigated by Fourier transform infrared spectroscopy, atomic force microscopy, and X-ray diffraction, which revealed the interdomain spacing between the hard and soft phases, the degree of phase separation, and the intermixing level between the hard and soft phases. The thermal and mechanical properties of the SMTPUs were also investigated, wherein a high hard segment content imparted unique properties that rendered the SMTPUs suitable for shape memory applications at varying temperatures. More specifically, the SMTPUs exhibited a high level of elastic elongation and good mechanical strength. Following compositional optimization, a tensile strength of 24-27 MPa was achieved, in addition to an elongation at break of 358-552% and a hardness of 84-92 Shore A. Moreover, the bio-based SMTPU exhibited a shape recovery of 100%, thereby indicating its potential for use as an advanced temperature-dependent shape memory material with an excellent shape recoverability.
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Affiliation(s)
- Yang-Sook Jung
- Department of Organic Materials and Polymer Engineering, Dong-A University, Busan 49315, Republic of Korea
- Department of Biofibers and Biomaterials Science, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sunhee Lee
- Department of Fashion Design, Dong-A University, Busan 49315, Republic of Korea
| | - Jaehyeung Park
- Department of Biofibers and Biomaterials Science, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Eun-Joo Shin
- Department of Organic Materials and Polymer Engineering, Dong-A University, Busan 49315, Republic of Korea
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3
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Awonusi BO, Li J, Li H, Wang Z, Yang K, Zhao J. In vitro and in vivo studies on bacteria and encrustation resistance of heparin/poly-L-lysine-Cu nanoparticles coating mediated by PDA for ureteral stent application. Regen Biomater 2022; 9:rbac047. [PMID: 35928999 PMCID: PMC9345062 DOI: 10.1093/rb/rbac047] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/15/2022] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
Ureteral stents are commonly utilized as a medical device to aid the flow of urine. However, biofilm formation and encrustation complications have been clinical problems. To overcome this challenge, heparin/poly-L-lysine-copper (Hep/PLL-Cu) nanoparticle was immobilized on a dopamine-coated polyurethane surface (PU/NPs). The stability and structural properties of the nanoparticles were characterized by Zeta potential, poly dispersion index, transmission electron microscopy, atom force microscopy and contact angle. The surface composition, antibacterial potency, encrustation resistance rate and biocompatibility of PU/NPs were investigated by scanning electron microscope, X-ray photoelectron spectroscopy, antibacterial assay and MTS assay, respectively. In addition, the anti-encrustation property was studied by implanting coated NPs stents in the rat bladder for 7 days. It was shown that the size and distribution of Hep/PLL-Cu nanoparticles were uniform. PU/NPs could inhibit Proteus mirabilis proliferation and biofilm formation, and exhibit no cytotoxicity. Less encrustation (Ca and Mg salt) was deposited both in vitro and in vivo on samples, demonstrating that the NPs coating could be a potential surface modification method of ureteral material for clinical use.
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Affiliation(s)
- Bukola O Awonusi
- Institute of Metal Research, Chinese Academy of Sciences , Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China , Hefei 230022, China
| | - Jianzhong Li
- General Hospital of Northern Theater Command Department of Urology, , Shenyang 110840, China
| | - Hongwei Li
- General Hospital of Northern Theater Command Department of Urology, , Shenyang 110840, China
| | - Zhenyu Wang
- General Hospital of Northern Theater Command Department of Urology, , Shenyang 110840, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences , Shenyang 110016, China
| | - Jing Zhao
- Institute of Metal Research, Chinese Academy of Sciences , Shenyang 110016, China
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4
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Boshra IK, Lin G, Elbeih A. Influence of different crosslinking mixtures on the mechanical properties of composite solid rocket propellants based on HTPB. HIGH PERFORM POLYM 2020. [DOI: 10.1177/0954008320940359] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The crosslinking agent is a vital key which affects the mechanical properties of composite solid rocket propellants (CSRPs). Under this scheme, the effect of crosslinking mixtures (CMs) based on trimethylolpropane (TMP) as a triol crosslinker and butanediol (BD) as a chain extender on CSRPs based on hydroxyl-terminated polybutadiene was investigated. A series of 27 propellant compositions was formulated to study the mechanical properties of the prepared CSRPs. The effect of changing the weight ratio of TMP to BD in the CM was studied. In addition, the influence of increasing the percentage of CM (from 0% to 0.5%) in the prepared samples was investigated. Also, the effect of the CM on CSRPs containing different curing ratio of NCO/OH = 0.7, 0.75, and 0.8 was studied to generate the largest possible strain-ability with high strength over different levels of curing conditions. The mechanical characteristics (tensile strength and strain) of the prepared CSRPs have been measured and plotted versus CM content, NCO/OH and TMP:BD ratio. Generally, the addition of CM leads to a remarkable enhancement in the propellant mechanical properties. Samples containing TMP:BD (2:1) provide the highest strength while samples containing TMP:BD (1:2) show the highest strain over all the NCO/OH ratios. Formulations with TMP:BD (1:1) give high strength with moderate strain. Variation in CM content has a remarkable influence on the mechanical properties of CSRPs. A wide range of tensile strength and strain were obtained from this study to offer variety of results suitable for different applications in the CSRPs technology.
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Affiliation(s)
- Islam K Boshra
- Beijing University of Aeronautics and Astronautics, Beijing, China
| | - Guo Lin
- Beijing University of Aeronautics and Astronautics, Beijing, China
| | - Ahmed Elbeih
- Military Technical College, Kobry Elkobbah, Cairo, Egypt
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5
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Borcan F, Len A, Bordejevic DA, Dudás Z, Tomescu MC, Valeanu AN. Obtaining and Characterization of a Polydisperse System Used as a Transmembrane Carrier for Isosorbide Derivatives. Front Chem 2020; 8:492. [PMID: 32695744 PMCID: PMC7338715 DOI: 10.3389/fchem.2020.00492] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 05/12/2020] [Indexed: 01/30/2023] Open
Abstract
Due to their effect of vasodilatation, isosorbide nitrates represent one of the most important and most used solutions for angina pectoris. Unfortunately, these compounds have multiple dose-related adverse drug reactions such as headache, weakness, mild dizziness, and occasionally heart rate changes, nausea, vomiting, and sweating. The main aims of this research were to obtain and to evaluate new polyurethane (PU) structures that can be used as a proper transmembrane carrier with an improved release kinetic. Chitosan-based PU structures were obtained by a polyaddition process between hexamethylene diisocyanate and a mixture of chitosan, butanediol, and polyethylene glycol in the presence of caffeine as a synthesis catalyst. The obtained samples (with and without isosorbide nitrates) were characterized regarding the encapsulation and release rate (UV-Vis spectra), chemical composition (FTIR), thermal stability (thermal analysis), morphology changes (SEM and SANS), and in vivo irritation tests. These methods revealed no significant differences between the two sample structures. Multipopulational structures with sizes between 73 and 310 nm, with an increased tendency to form clusters and a high resistance to heat (up to 280°C), were obtained. This study presents an alternative administration of isosorbide derivatives based on a PU carrier with a high biocompatibility and a prolonged release.
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Affiliation(s)
- Florin Borcan
- The 1st Department (Analytical Chemistry), Faculty of Pharmacy, "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania
| | - Adél Len
- Neutron Spectroscopy Department, Centre for Energy Research, Hungarian Academy of Sciences, Budapest, Hungary.,Faculty of Engineering and Information Technology, University of Pécs, Pécs, Hungary
| | - Diana A Bordejevic
- The 5th Department (Internal Medicine I), Faculty of Medicine, "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania
| | - Zoltán Dudás
- Neutron Spectroscopy Department, Centre for Energy Research, Hungarian Academy of Sciences, Budapest, Hungary.,"Coriolan Drǎgulescu" Institute of Chemistry, Romanian Academy, Timisoara, Romania
| | - Mirela C Tomescu
- The 5th Department (Internal Medicine I), Faculty of Medicine, "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania
| | - Adina N Valeanu
- The 2nd Department, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania
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6
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Yan G, Zhang P, Wang J, Wang X, Tang R. Dynamic micelles with detachable PEGylation at tumoral extracellular pH for enhanced chemotherapy. Asian J Pharm Sci 2020; 15:728-738. [PMID: 33363628 PMCID: PMC7750827 DOI: 10.1016/j.ajps.2019.11.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/25/2019] [Accepted: 11/20/2019] [Indexed: 01/09/2023] Open
Abstract
Although surface PEGylation of nanomedicines can decrease serum protein adsorption in vivo, it also blocks uptake by tumor cells. This dilemma could be overcome by employing detachably PEGylated strategy at tumoral extracellular microenvironment to achieve improved cellular uptake while prolonged circulation times. Herein, the amphiphilic graft copolymers with pH-sensitive ortho ester-linked mPEG in side chains and polyurethanes in backbone, can self-assemble into the free and doxorubicin (DOX)-loaded micelles. The pH-sensitive micelles could undergo several characteristics as follows: (i) PEGylated shells for stability in sodium dodecyl sulfonate (SDS) solution; (ii) DePEGylation via degradation of ortho ester linkages at tumoral extracellular pH (6.5) for gradually dynamic size changes and effective release of DOX; and (iii) enhanced cellular uptake and cytotoxicity via positive DOX. Moreover, the dynamic micelles with detachable PEGylation could quickly penetrate the centers of SH-SY5Y multicellular spheroids (MCs) and strongly inhibit tumor growth in vitro and in vivo, and might be considered as promising and effective drug carriers in tumor therapy.
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Affiliation(s)
- Guoqing Yan
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, Hefei 230601, China
| | - Panpan Zhang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, Hefei 230601, China
| | - Jun Wang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, Hefei 230601, China
| | - Xin Wang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, Hefei 230601, China
| | - Rupei Tang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, Hefei 230601, China
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7
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Rezaei Hosseinabadi S, Parsapour A, Nouri Khorasani S, Razavi SM, Hashemibeni B, Heidari F, Khalili S. Wound dressing application of castor oil- and CAPA-based polyurethane membranes. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02891-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Zhang N, Yin SN, Hou ZS, Xu WW, Zhang J, Xiao MH, Zhang QK. Preparation, physicochemical properties and biocompatibility of biodegradable poly(ether-ester-urethane) and chitosan oligosaccharide composites. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1614-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Komez A, Buyuksungur S, Hasirci V, Hasirci N. Effect of chemical structure on properties of polyurethanes: Temperature responsiveness and biocompatibility. J BIOACT COMPAT POL 2018. [DOI: 10.1177/0883911518783233] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Polyurethanes are known as one of the most biocompatible and inherently blood-compatible materials and have a wide range of applications in the medical field due to their controllable structure and properties. Durability, elasticity, elastomeric structure, fatigue resistance, versatility, and easy acceptance by the biological media after the application makes these polymers preferable in medical area. In this study, polyurethane films were prepared using poly(propylene-ethylene glycol) and either toluene-2,4-diisocyanate or 4,4′-methylenediphenyl diisocyanate without adding any other ingredients such as solvent, catalyst, or chain extender to prevent negative effects of leachable molecules. Mechanical tests were performed at room temperature while swelling tests were conducted in water and phosphate-buffered saline at 4°C, 25°C, and 37°C. Temperature responsiveness was observed for the samples synthesized using toluene-2,4-diisocyanate and poly(propylene-ethylene glycol). These samples had more than 100% swelling at 4°C and about 4% swelling at 25°C and 37°C. Cytocompatibility tests were performed by culturing the samples and their extracts with mouse fibroblast cells (L929). Viability of human umbilical vein endothelial cells was studied to examine the compatibility of the films for blood contacting devices. Both toluene-2,4-diisocyanate and 4,4-methylenediphenyl diisocyanate–based polyurethane films showed no cytotoxic effect and good biocompatibility. Oxygen plasma treatment enhanced hydrophilicity of the films. After plasma treatment, human umbilical vein endothelial cell attachment on toluene-2,4-diisocyanate–based polyurethane films improved and 4,4-methylenediphenyl diisocyanate–based polyurethane films maintained their high cell affinity. Polyurethanes presenting temperature responsiveness, high biocompatibility, and high affinity for human umbilical vein endothelial cells were synthesized in medical purity and in a reaction media involving only diisocyanate and diol components without addition of any solvent, chain extender, or catalyst. Polyurethanes with these properties and as produced in this study are reported for the first time in the literature.
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Affiliation(s)
- Aylin Komez
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University (METU), Ankara, Turkey
- Graduate Department of Biotechnology, Middle East Technical University (METU), Ankara, Turkey
| | - Senem Buyuksungur
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University (METU), Ankara, Turkey
- Graduate Department of Biotechnology, Middle East Technical University (METU), Ankara, Turkey
| | - Vasif Hasirci
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University (METU), Ankara, Turkey
- Graduate Department of Biotechnology, Middle East Technical University (METU), Ankara, Turkey
- Department of Biological Sciences, Middle East Technical University (METU), Ankara, Turkey
| | - Nesrin Hasirci
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University (METU), Ankara, Turkey
- Graduate Department of Biotechnology, Middle East Technical University (METU), Ankara, Turkey
- Department of Chemistry, Middle East Technical University (METU), Ankara, Turkey
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Aksoy EA, Taskor G, Gultekinoglu M, Kara F, Ulubayram K. Synthesis of biodegradable polyurethanes chain-extended with (2S
)-bis(2-hydroxypropyl) 2-aminopentane dioate. J Appl Polym Sci 2017. [DOI: 10.1002/app.45764] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Eda Ayse Aksoy
- Department of Basic Pharmaceutical Sciences; Faculty of Pharmacy, Hacettepe University; Ankara 06100 Turkey
- Polymer Science and Technology Division; Institute for Graduate Studies in Science and Engineering, Hacettepe University; Ankara 06640 Turkey
| | - Gulce Taskor
- Department of Basic Pharmaceutical Sciences; Faculty of Pharmacy, Hacettepe University; Ankara 06100 Turkey
- Nanotechnology and Nanomedicine Division; Institute for Graduate Studies in Science and Engineering, Hacettepe University; Ankara 06640 Turkey
| | - Merve Gultekinoglu
- Department of Basic Pharmaceutical Sciences; Faculty of Pharmacy, Hacettepe University; Ankara 06100 Turkey
- Bioengineering Division; Institute for Graduate Studies in Science and Engineering, Hacettepe University; Ankara 06640 Turkey
| | - Filiz Kara
- Department of Basic Pharmaceutical Sciences; Faculty of Pharmacy, Hacettepe University; Ankara 06100 Turkey
| | - Kezban Ulubayram
- Department of Basic Pharmaceutical Sciences; Faculty of Pharmacy, Hacettepe University; Ankara 06100 Turkey
- Polymer Science and Technology Division; Institute for Graduate Studies in Science and Engineering, Hacettepe University; Ankara 06640 Turkey
- Nanotechnology and Nanomedicine Division; Institute for Graduate Studies in Science and Engineering, Hacettepe University; Ankara 06640 Turkey
- Bioengineering Division; Institute for Graduate Studies in Science and Engineering, Hacettepe University; Ankara 06640 Turkey
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12
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Yin S, Xia Y, Jia Q, Hou ZS, Zhang N. Preparation and properties of biomedical segmented polyurethanes based on poly(ether ester) and uniform-size diurethane diisocyanates. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 28:119-138. [DOI: 10.1080/09205063.2016.1252303] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Shengnan Yin
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Yiran Xia
- Shandong Provincial Key Laboratory of Biomedical Polymer, Shandong Academy of Pharmaceutical Sciences, Jinan, China
| | - Qi Jia
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Zhao-Sheng Hou
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
| | - Na Zhang
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, China
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Venkat Kumar G, Su CH, Velusamy P. Surface immobilization of kanamycin-chitosan nanoparticles on polyurethane ureteral stents to prevent bacterial adhesion. BIOFOULING 2016; 32:861-870. [PMID: 27436679 DOI: 10.1080/08927014.2016.1202242] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 06/09/2016] [Indexed: 06/06/2023]
Abstract
Bacterial adhesion is a major problem that can lead to the infection of implanted urological stents. In this study, kanamycin-chitosan nanoparticles (KMCSNPs) were immobilized on the surface of a polyurethane ureteral stent (PUS) to prevent urinary bacterial infection. KMCSNPs were synthesized using the ionic gelation method. The synthesized KMCSNPs appeared spherical with a ζ-average particle size of 225 nm. KMCSNPs were immobilized on the PUS surface by covalent immobilization techniques. The surface-modified PUS was characterized using attenuated total reflectance Fourier transform infrared spectroscopy, field emission scanning electron microscopy, and energy dispersive X-ray spectroscopy. The surface-modified PUS showed significantly increased antibacterial activity against Escherichia coli MTCC 729 and Proteus mirabilis MTCC 425 relative to the surface of an unmodified PUS. These findings suggest that the KMCSNP-immobilized PUS has the potential to prevent bacterial infection in the human urinary tract.
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Affiliation(s)
- Govindarajan Venkat Kumar
- a Department of Biotechnology, School of Bioengineering , SRM University , Kattankulathur , Tamil Nadu , India
| | - Chia-Hung Su
- b Department of Chemical Engineering , Ming Chi University of Technology , Taishan , Taipei , Taiwan
| | - Palaniyandi Velusamy
- a Department of Biotechnology, School of Bioengineering , SRM University , Kattankulathur , Tamil Nadu , India
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14
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Zhu R, Wang Y, Zhang Z, Ma D, Wang X. Synthesis of polycarbonate urethane elastomers and effects of the chemical structures on their thermal, mechanical and biocompatibility properties. Heliyon 2016; 2:e00125. [PMID: 27441296 PMCID: PMC4946310 DOI: 10.1016/j.heliyon.2016.e00125] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 04/25/2016] [Accepted: 06/14/2016] [Indexed: 12/05/2022] Open
Abstract
In this study, to obtain biomedical polyurethane elastomers with good mechanical properties and biocompatibility, a series of polycarbonate urethanes were synthesized via a two-step solution of polymerization method using the poly(1,6-hexanediol)carbonate diols (PCDL) as the soft segment, 4,4′-methylenebis(cyclohexyl isocyanate) (H12MDI), 1,6-hexamethylene diisocyanate (HDI) and 1,4-butanediol (BDO) as the hard segment with dibutyltin dilaurate as the catalyst. In this article, we illustrated the physical behaviors were obviously influenced by synthetic routes. And their chemical and physical structures were investigated by gel permeation chromatograph (GPC), differential scanning calorimeter (DSC), fourier transform infrared spectrography (FT-IR) and mechanical properties tests. The surface wettability were studied by contact angle measurement (CA). As a kind of short-term implant biomaterial, the results of the hemolysis and platelet adhesive tests were recorded by spectrophotometer and scanning electron microscopy (SEM), indicating the materials have a great potential for developments and applications in biomedical field.
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Affiliation(s)
- Rong Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
| | - Yiyu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
| | - Zongrui Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
| | - Daiwei Ma
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
| | - Xinyu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
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15
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Kara F, Aksoy EA, Calamak S, Hasirci N, Aksoy S. Immobilization of heparin on chitosan-grafted polyurethane films to enhance anti-adhesive and antibacterial properties. J BIOACT COMPAT POL 2015. [DOI: 10.1177/0883911515598794] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Infections caused by bacteria adhering to implant surfaces are one of the main reasons for the failure of the implants. In this study, polyurethane (PU), which is the most commonly used polymer in the production of medical devices, was synthesized and surfaces of polyurethane films were modified by chitosan (CH) grafting and heparin (Hep) immobilization in order to enhance anti-adhesiveness and antibacterial properties. Functional groups present on the surface, topographical shapes, and free energies of the polyurethane films were determined. Pristine polyurethane, chitosan-grafted polyurethane (PU–CH), and heparin immobilized polyurethane (PU–CH–Hep) films demonstrated high anti-adhesive efficacy against bacteria in the given order, where PU–CH–Hep was the most effective one. When PU–CH–Hep samples were incubated with different bacteria, complete death was observed for Pseudomonas aeruginosa (Gram negative), Staphylococcus aureus (Gram positive), and Staphylococcus epidermidis (Gram positive). Some living Escherichia coli (Gram negative) were observed after 24 h of incubation. Pristine and modified polyurethane samples demonstrated no adverse effect on proliferation of L929 fibroblast cells and were found to be biocompatible according to MTT cytotoxicity tests.
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Affiliation(s)
- Filiz Kara
- Department of Chemistry, Faculty of Science, Gazi University, Ankara, Turkey
| | - Eda Ayse Aksoy
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Semih Calamak
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Nesrin Hasirci
- Graduate Department of Biotechnology, Middle East Technical University, Ankara, Turkey
- Department of Chemistry, Faculty of Arts and Sciences, Middle East Technical University, Ankara, Turkey
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, Turkey
| | - Serpil Aksoy
- Department of Chemistry, Faculty of Science, Gazi University, Ankara, Turkey
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16
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Aflori M, Miron C, Dobromir M, Drobota M. Bactericidal effect on Foley catheters obtained by plasma and silver nitrate treatments. HIGH PERFORM POLYM 2015. [DOI: 10.1177/0954008315584171] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
New medical, materials, and surgical procedures keep improving current health-care practices. Many of these innovations involve polymeric devices that must meet certain clinical and cost requirements. Novel antimicrobial technologies and nanotechnologies are being implemented in more applications such as implant interphases, coatings, and others to avoid postoperatory infections. Here we present a novel approach to create antimicrobial surfaces on Foley catheters widely used in hospitals in order to avoid a variety of harms including infection, pain, and trauma. The combination of plasma and silver nitrate wet treatments demonstrates to be a fast, easy, and convenient method for obtaining colonization-resistant catheter surfaces.
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Affiliation(s)
- Magdalena Aflori
- “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
| | - Camelia Miron
- Leibniz Institute for Plasma Science and Technology, Greifswald, Germany
| | | | - Mioara Drobota
- “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
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17
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Gradinaru LM, Ciobanu C, Vlad S, Drobota M, Butnaru M, Saint-Pierre G. Thermal behavior, surface energy analysis, and hemocompatibility of some polycarbonate urethanes for cardiac engineering. HIGH PERFORM POLYM 2015. [DOI: 10.1177/0954008315584173] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The understanding of basic surface properties and the relationships between temperature and the configuration of the polymer surface are the key to further understand the first interaction mechanism of the polymer with the body. To this end, some poly(carbonate tetramethylene ether)urethane (PCEU), poly(carbonate siloxane tetramethylene ether)urethane (PCSiEU), and their 1:1 gravimetric mixture (PCEU/PCSiEU) membranes were prepared. In order to establish the relationships between temperature and the chemical structure of polymer surface, the polyurethane (PU) membranes were analyzed by attenuated total reflectance–Fourier transform infrared spectroscopy. The temperature has a significant influence on these PU surface structures. Surface characteristics such as wettability and surface free energy were also analyzed since the interaction between biomaterials and blood occurs at their interface. The preliminary cytotoxicity screening showed no cytotoxicity of these PU membranes. The PU samples do not accelerate the clot formation mechanisms under the tested conditions. The results suggest that these PU membranes are promising materials for the preparation of cardiovascular scaffolds.
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Affiliation(s)
- L. M. Gradinaru
- “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
| | - C. Ciobanu
- “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
| | - S Vlad
- “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
| | - M. Drobota
- “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
| | - M. Butnaru
- “Gr.T. Popa” University of Medicine and Pharmacy, Iasi, Romania
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18
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Xing C, Guan J, Chen Z, Zhu Y, Zhang B, Li Y, Li J. Novel multifunctional nanofibers based on thermoplastic polyurethane and ionic liquid: towards antibacterial, anti-electrostatic and hydrophilic nonwovens by electrospinning. NANOTECHNOLOGY 2015; 26:105704. [PMID: 25686531 DOI: 10.1088/0957-4484/26/10/105704] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Novel antibacterial, anti-electrostatic, and hydrophilic nanofibers based on a blend containing thermoplastic polyurethane (TPU) and a room-temperature ionic liquid (IL), 1-butyl-3-methylimidazolium hexafluorophosphate [BMIM][PF6], were fabricated by electrospinning. We investigated the effect of the IL on the morphology and the physical properties of the TPU nanofibers. Nanofibers with a 'bead-on-string' morphology were obtained by electrospinning from a neat TPU solution. The incorporation of the IL, at levels as low as 1 wt%, largely suppressed the formation of beads during electrospinning, and homogeneous nanofibers were obtained. The as-spun TPU/IL composite nanofibers showed significant activity against both Escherichia coli (E coli) and Staphylococcus aureus (S. aureus), with antibacterial activities of more than four and three, respectively. This means that the antibacterial efficiencies of TPU/IL composite nanofibers toward E coli and S. aureus are 99.99% and 99.9%, respectively. Moreover, nonwoven fabrics derived from the electrospun TPU/IL composite nanofibers exhibit better stretchability, elasticity, and higher electrical conductivity compared to those made using neat TPU without an IL. Additionally, the incorporation of the IL leads to a hydrophilic surface for the TPU/IL composite nanofibers compared to hydrophobic neat TPU nanofibers. These multifunctional nanofibers with excellent antibacterial, anti-electrostatic, and mechanical properties and improved hydrophilicity are promising candidates for biomedical and wastewater treatment applications.
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Affiliation(s)
- Chenyang Xing
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 16 Xuelin Rd., Hangzhou, 310036, People's Republic of China. TMSR Research Center and CAS Key Lab of Nuclear Radiation and Nuclear Energy Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, People's Republic of China. University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
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19
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Hu X, Xu S, Feng S, Wang J, Xu J. Saline-enabled self-healing of polyelectrolyte multilayer films. RSC Adv 2015. [DOI: 10.1039/c4ra13373k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
After introducing a third polyelectrolyte, the healing ability of polyelectrolyte multilayer film fabricated by LbL technique is largely enhanced, and can undergo rapid healing of several tens of micrometer-sized cuts when exposed to normal saline.
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Affiliation(s)
- Xiaoxia Hu
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
| | - Shimei Xu
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
| | - Shun Feng
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
| | - Jide Wang
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
| | - Jie Xu
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
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20
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Kizuka K, Inoue SI. Synthesis and Properties of Polyurethane Elastomers Containing Sucrose as a Cross-Linker. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/ojopm.2015.54011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Kara F, Aksoy EA, Yuksekdag Z, Hasirci N, Aksoy S. Synthesis and surface modification of polyurethanes with chitosan for antibacterial properties. Carbohydr Polym 2014; 112:39-47. [PMID: 25129714 DOI: 10.1016/j.carbpol.2014.05.019] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 05/14/2014] [Accepted: 05/15/2014] [Indexed: 01/26/2023]
Abstract
Surface modification and providing antibacterial properties to the materials or devices are getting great attention especially in the last decades. In this study, polyurethane (PU) films were prepared by synthesizing them in medical purity from toluene diisocyanate and polypropylene ethylene glycol without using any other ingredients and then the film surfaces were modified by covalent immobilization of chitosan (CH) which has antibacterial activity. CH immobilized PU films (PU-CH) were found to be more hydrophilic than control PU films. Electron Spectroscopy for Chemical Analysis (ESCA) and Atomic Force Microscopy (AFM) analyses showed higher nitrogen contents and rougher surface topography for PU-CH compared to PU films. Modification with CH significantly increased antibacterial activity against Gram positive (Staphylococcus aureus) and Gram negative (Pseudomonas aeruginosa) bacteria. It was observed that the number of bacteria colonies were less about 10(2)-10(5) CFU/mL and number of attached viable bacteria decreased significantly after CH modification of PU films.
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Affiliation(s)
- Filiz Kara
- Department of Chemistry, Faculty of Science, Gazi University, 06500 Ankara, Turkey
| | - Eda Ayse Aksoy
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, 06100 Ankara, Turkey; BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Dumlupınar Bulvarı, No:1, 06800 Cankaya, Ankara, Turkey
| | - Zehranur Yuksekdag
- Department of Biology, Biotechnology Laboratory, Faculty of Science, Gazi University, 06500 Ankara, Turkey
| | - Nesrin Hasirci
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Dumlupınar Bulvarı, No:1, 06800 Cankaya, Ankara, Turkey; Department of Chemistry, Faculty of Arts and Sciences, Middle East Technical University, 06800 Ankara, Turkey
| | - Serpil Aksoy
- Department of Chemistry, Faculty of Science, Gazi University, 06500 Ankara, Turkey.
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22
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Xue Y, Ma D, Zhang T, Lin S, Shao S, Gu N. Synthesis and Characterization of Comb-like Methoxy Polyethylene Glycol-grafted Polyurethanes via ‘Click’ Chemistry. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2014. [DOI: 10.1080/10601325.2014.893145] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Najafabadi SAA, Keshvari H, Sarkhosh H, Ashuri M, Tahriri M. Surface Modification of Castor Oil-Based Polyurethane by Polyacrylic Acid Graft using a Two-Step Plasma Treatment for Biomedical Applications. ADVANCES IN POLYMER TECHNOLOGY 2014. [DOI: 10.1002/adv.21411] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Hamid Keshvari
- Biomaterials Group; Faculty of Biomedical Engineering, Amirkabir University of Technology; Tehran Iran
| | - Hadi Sarkhosh
- Biomaterials Group; Faculty of Biomedical Engineering, Amirkabir University of Technology; Tehran Iran
| | - Maziar Ashuri
- Biomaterials Group; Faculty of Biomedical Engineering, Amirkabir University of Technology; Tehran Iran
| | - Mohammadreza Tahriri
- Biomaterials Group; Faculty of Biomedical Engineering, Amirkabir University of Technology; Tehran Iran
- Dental Biomaterials Department; School of Dentistry, Tehran University of Medical Sciences; Tehran Iran
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24
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Kiziltay A, Marcos-Fernandez A, San Roman J, Sousa RA, Reis RL, Hasirci V, Hasirci N. Poly(ester-urethane) scaffolds: effect of structure on properties and osteogenic activity of stem cells. J Tissue Eng Regen Med 2013; 9:930-42. [DOI: 10.1002/term.1848] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Revised: 06/13/2013] [Accepted: 10/07/2013] [Indexed: 12/28/2022]
Affiliation(s)
- Aysel Kiziltay
- BIOMATEN-Centre of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University (METU); Ankara Turkey
- Graduate Department of Biotechnology; Middle East Technical University (METU); Ankara Turkey
- Central Laboratory; Middle East Technical University (METU); Ankara Turkey
| | | | - Julio San Roman
- Instituto de Ciencia y Tecnología de Polímeros (CSIC); Madrid Spain
| | - Rui A. Sousa
- 3Bs Research Group - Biomaterials, Biodegradables and Biomimetics; Universidade do Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Taipas Guimarães Portugal
- ICVS/3Bs PT Government Associated Laboratory; Braga Guimarães Portugal
| | - Rui L. Reis
- 3Bs Research Group - Biomaterials, Biodegradables and Biomimetics; Universidade do Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Taipas Guimarães Portugal
- ICVS/3Bs PT Government Associated Laboratory; Braga Guimarães Portugal
| | - Vasif Hasirci
- BIOMATEN-Centre of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University (METU); Ankara Turkey
- Graduate Department of Biotechnology; Middle East Technical University (METU); Ankara Turkey
- Department of Biological Sciences; Middle East Technical University (METU); Ankara Turkey
| | - Nesrin Hasirci
- BIOMATEN-Centre of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University (METU); Ankara Turkey
- Graduate Department of Biotechnology; Middle East Technical University (METU); Ankara Turkey
- Department of Chemistry; Middle East Technical University (METU); Ankara Turkey
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25
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Güney A, Hasirci N. Properties and phase segregation of crosslinked PCL-based polyurethanes. J Appl Polym Sci 2013. [DOI: 10.1002/app.39758] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Aysun Güney
- Department of Chemistry, Faculty of Arts and Sciences; Middle East Technical University; Ankara 06800 Turkey
- Graduate Department of Polymer Science and Technology; Middle East Technical University; Ankara 06800 Turkey
- BIOMATEN-Center of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University; Ankara 06800 Turkey
| | - Nesrin Hasirci
- Department of Chemistry, Faculty of Arts and Sciences; Middle East Technical University; Ankara 06800 Turkey
- Graduate Department of Polymer Science and Technology; Middle East Technical University; Ankara 06800 Turkey
- BIOMATEN-Center of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University; Ankara 06800 Turkey
- Graduate Department of Biotechnology; Middle East Technical University; Ankara 06800 Turkey
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26
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Ren J, Liu Y, Wang Y, Wang Q, Wang G. Synthesis and characterization of poly(arylene ether ketone) copolymers with pendant carboxylic acid groups for antifouling ultrafiltration membrane. HIGH PERFORM POLYM 2013. [DOI: 10.1177/0954008313483152] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This work focused on the synthesis of a series of poly(arylene ether ketone) random copolymers with various controlled pendant carboxylic acid groups (PEAK-COOH) by direct copolymerization method and the preparation of antifouling ultrafiltration membranes via the conventional immersion precipitation phase inversion method. The morphologies of the PEAK-COOH membranes were investigated by scanning electron microscopy. In addition, the surface hydrophilicity and charged property of the PEAK-COOH membranes were studied by water contact angle and membrane potential measurements, and the results indicated that the introduction of COOH on the polymer chains of membrane materials was really an effective way to negatively charge the membrane and enhance the hydrophilicity. The pure water flux and protein solution permeation through the prepared membranes were increased with the increase in the content of carboxylic acid groups. The cycle ultrafiltration experiments for protein solution revealed that nonspecific protein adsorption, especially irreversible protein adsorption, for the PEAK-COOH membranes, was significantly reduced, suggesting superior antifouling performance.
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Affiliation(s)
- Jiannan Ren
- College of Chemistry, Engineering Research Center of High Performance Plastics, Ministry of Education, Jilin University, Changchun, People’s Republic of China
| | - Yang Liu
- College of Chemistry, Engineering Research Center of High Performance Plastics, Ministry of Education, Jilin University, Changchun, People’s Republic of China
- College of Material Science and Engineering, Northeast Forestry University, Harbin, People’s Republic of China
| | - Yan Wang
- College of Chemistry, Engineering Research Center of High Performance Plastics, Ministry of Education, Jilin University, Changchun, People’s Republic of China
| | - Qinhong Wang
- College of Chemistry, Engineering Research Center of High Performance Plastics, Ministry of Education, Jilin University, Changchun, People’s Republic of China
| | - Guibin Wang
- College of Chemistry, Engineering Research Center of High Performance Plastics, Ministry of Education, Jilin University, Changchun, People’s Republic of China
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27
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Rajan KP, Al-Ghamdi A, Ramesh P, Nando GB. Blends of thermoplastic polyurethane (TPU) and polydimethyl siloxane rubber (PDMS), part-I: assessment of compatibility from torque rheometry and mechanical properties. JOURNAL OF POLYMER RESEARCH 2012. [DOI: 10.1007/s10965-012-9872-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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Haddad S, Zanina N, Othmane A, Mora L. Polyurethane films modified by antithrombin–heparin complex to enhance endothelialization: An original impedimetric analysis. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.06.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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30
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Marín R, Martínez de Ilarduya A, Muñoz-Guerra S. Linear polyurethanes made from naturally occurring tartaric acid. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23330] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Kamışoğlu K, Aksoy EA, Akata B, Hasirci N, Baç N. Preparation and characterization of antibacterial zeolite-polyurethane composites. J Appl Polym Sci 2008. [DOI: 10.1002/app.28838] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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