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Oschatz S, Schultz S, Fiedler N, Senz V, Schmitz KP, Grabow N, Koper D. Melt blending of poly(lactic acid) with biomedically relevant polyurethanes to improve mechanical performance. Heliyon 2024; 10:e26268. [PMID: 38444474 PMCID: PMC10912236 DOI: 10.1016/j.heliyon.2024.e26268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 03/07/2024] Open
Abstract
Minimally invasive surgery procedures are of utmost relevance in clinical practice. However, the associated mechanical stress on the material poses a challenge for new implant developments. In particular PLLA, one of the most widely used polymeric biomaterials, is limited in its application due to its high brittleness and low elasticity. In this context, blending is a conventional method of improving the performance of polymer materials. However, in implant applications and development, material selection is usually limited to the use of medical grade polymers. The focus of this work was to investigate the extent to which blending poly-l-lactide (PLLA) with low contents of a selection of five commercially available medical grade polyurethanes leads to enhanced material properties. The materials obtained by melt blending were characterized in terms of their morphology and thermal properties, and the mechanical performance of the blends was evaluated taking into account physiological conditions. From these data, we found that mixing PLLA with Pellethane 80A is a promising approach to improve the material's performance, particularly for stent applications. It was found that PLLA/Pellethane blend with 10% polyurethane exhibits considerable plastic deformation before fracture, while pure PLLA fractures with almost no deformation. Furthermore, the addition of Pellethane only leads to a moderate reduction in elongation at yield and yield stress. In addition, dynamic mechanical analysis for three different PLLA/Pellethane ratios was performed to investigate thermally induced shape retention and shape recovery of the blends.
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Affiliation(s)
- Stefan Oschatz
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Straße 4, 18119, Rostock, Germany
| | - Selina Schultz
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Straße 4, 18119, Rostock, Germany
| | - Nicklas Fiedler
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Straße 4, 18119, Rostock, Germany
| | - Volkmar Senz
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Straße 4, 18119, Rostock, Germany
| | - Klaus-Peter Schmitz
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Straße 4, 18119, Rostock, Germany
- Institute for ImplantTechnology and Biomaterials e.V., Friedrich-Barnewitz-Straße 4, 18119, Rostock, Warnemünde, Germany
| | - Niels Grabow
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Straße 4, 18119, Rostock, Germany
- Department Life, Light & Matter (LLM), University of Rostock, 18051, Rostock, Germany
| | - Daniela Koper
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Straße 4, 18119, Rostock, Germany
- Institute for ImplantTechnology and Biomaterials e.V., Friedrich-Barnewitz-Straße 4, 18119, Rostock, Warnemünde, Germany
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2
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Atanase LI, Salhi S, Cucoveica O, Ponjavic M, Nikodinovic-Runic J, Delaite C. Biodegradability Assessment of Polyester Copolymers Based on Poly(ethylene adipate) and Poly(ε-caprolactone). Polymers (Basel) 2022; 14:polym14183736. [PMID: 36145879 PMCID: PMC9504934 DOI: 10.3390/polym14183736] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 12/19/2022] Open
Abstract
Biodegradable polymers contain chains that are hydrolytically or enzymatically cleaved, resulting in soluble degradation products. Biodegradability is particularly desired in biomedical applications, in which degradation of the polymer ensures clearance from the body and eliminates the need for retrieval or explant. In this study, a homologues series of poly(ε-caprolactone)-b-poly(ethylene adipate)-b-poly(ε-caprolactone) (PCL-b-PEA-b-PCL) block copolymers, with constant PEA molar mass and different PCL sequence lengths was obtained. The starting point of these copolymers was a dihydroxy-PEA precursor with a molar mass (Mn) of 2500 g/mol. Mn values of the PCL varied between 1000 and 10,000 g/mol. Both the precursors and the copolymers were characterized using different physicochemical methods, such as: NMR, SEC, Maldi-TOFF, DSC, and ATG. The molecular characteristics of the copolymers were in a direct correlation with the sequence length of the PCL. Enzymatic degradability studies were also conducted by using cell-free extract containing Pseudomonas aeruginosa PAO1 for 10 and 21 days, and it appeared that the presence of the PEA central sequence has an important influence on the biodegradability of the copolymer samples. In fact, copolymer PCL7000-PEA2500-PCL7000 had a weight loss of around 50% after 10 days whereas the weight loss of the homopolymer PCL, with a similar Mn of 14,000 g/mol, was only 6%. The results obtained in this study indicate that these copolymer samples can be further used for the preparation of drug delivery systems with modulated biodegradability.
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Affiliation(s)
- Leonard Ionut Atanase
- Faculty of Medical Dentistry, Apollonia University of Iasi, 700511 Iasi, Romania
- Academy of Romanian Scientists, 050045 Bucharest, Romania
- Correspondence:
| | - Slim Salhi
- Laboratoire de Chimie Appliquée, Faculté des Sciences de Sfax, University of Sfax, Sfax 3029, Tunisia
| | - Oana Cucoveica
- Faculty of Medical Dentistry, Apollonia University of Iasi, 700511 Iasi, Romania
- “Cristofor Simionescu” Faculty of Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
| | - Marijana Ponjavic
- Department of Electrochemistry, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
| | - Jasmina Nikodinovic-Runic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11000 Belgrade, Serbia
| | - Christelle Delaite
- Laboratoire de Photochimie et d’Ingenierie Macromoleculaires (LPIM), University of Haute Alsace, 68100 Mulhouse, France
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3
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Guo S, Zhu Y, Mei Q, Wang G. Preparation of bio‐degradable polyurethane based on poly(1,3‐propylene 3,6,9‐trioxaundecanedioate) glycol. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shengtong Guo
- Shanghai Key Laboratory of Advanced Polymeric Materials School of Materials Science and Engineering, East China University of Science and Technology Shanghai China
| | - Yun Zhu
- Shanghai Key Laboratory of Advanced Polymeric Materials School of Materials Science and Engineering, East China University of Science and Technology Shanghai China
| | - Qiyong Mei
- Department of Neurosurgery Changzheng Hospital, Naval Medical University (Second Military Medical University) Shanghai China
| | - Guiyou Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials School of Materials Science and Engineering, East China University of Science and Technology Shanghai China
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4
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Vásquez‐López C, Castillo‐Ortega MM, Chan‐Chan LH, Lagarda‐Díaz I, Giraldo‐Betancur AL, Rodríguez‐Félix DE, Encinas‐Encinas JC, Martínez‐Barbosa ME, Cadenas‐Pliego G, Cauich‐Rodríguez JV, Herrera‐Franco PJ. Polyurethane electrospun membranes with
hydroxyapatite‐vancomycin
for potential application in bone tissue engineering and drug delivery. J Appl Polym Sci 2022. [DOI: 10.1002/app.51893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Claudia Vásquez‐López
- Departamento de Investigación en Polímeros y Materiales Universidad de Sonora Rosales and Blvrd. Luis Encinas Hermosillo Mexico
| | - Maria Monica Castillo‐Ortega
- Departamento de Investigación en Polímeros y Materiales Universidad de Sonora Rosales and Blvrd. Luis Encinas Hermosillo Mexico
| | | | | | | | - Dora Evelia Rodríguez‐Félix
- Departamento de Investigación en Polímeros y Materiales Universidad de Sonora Rosales and Blvrd. Luis Encinas Hermosillo Mexico
| | - Jose Carmelo Encinas‐Encinas
- Departamento de Investigación en Polímeros y Materiales Universidad de Sonora Rosales and Blvrd. Luis Encinas Hermosillo Mexico
| | - Maria Elisa Martínez‐Barbosa
- Departamento de Investigación en Polímeros y Materiales Universidad de Sonora Rosales and Blvrd. Luis Encinas Hermosillo Mexico
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Bayat Y, Jodar S, Khanlari T. Synthesis and thermal decomposition kinetics of tri-block copolymer ε-caprolactone / polybutadiene (PCL-PB-PCL); preparation of polyurethane network-based tri-block copolymer. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02949-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Wang J, Hu S, Yang B, Jin G, Zhou X, Lin X, Wang R, Lu Y, Zhang L. Novel Three-Dimensional-Printing Strategy Based on Dynamic Urea Bonds for Isotropy and Mechanical Robustness of Large-Scale Printed Products. ACS APPLIED MATERIALS & INTERFACES 2022; 14:1994-2005. [PMID: 34963290 DOI: 10.1021/acsami.1c20659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Additive manufacturing via fused deposition modeling (FDM) has become one of the most widely used technologies owing to its ease of operation and effective cost. However, the disappointing interlayer adhesion produced by FDM often results in inferior mechanical properties, which has become a technical bottleneck for industrial production. Herein, we demonstrate a facile and efficient printing strategy to enhance interlayer adhesion by introducing a self-healing mechanism into the printing material, thereby concurrently enhancing the mechanical properties and isotropy of the printed products. This strategy relies on the self-healing property of three-dimensional-printing materials. This self-healing property is endowed by introducing dynamic urea bonds on the thermoplastic polyurethane (TPU) molecular chains, and then, such dynamic bonds can be activated through thermal heating. Accordingly, the synthesized TPU reveals an efficient self-healing property and excellent printability owing to the existence of dynamic reversible covalent bonds. Moreover, objects with complex structures can be split and printed and then assembled using this strategy, avoiding the need for supporting structures and realizing the rapid prototyping of large-sized objects. The printing strategy proposed paves a candidate way to overcome the current challenges in obtaining high-quality products via FDM.
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Affiliation(s)
- Jun Wang
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shikai Hu
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bin Yang
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guangzhi Jin
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xinxin Zhou
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiang Lin
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Runguo Wang
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yonglai Lu
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liqun Zhang
- Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
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7
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Composite Polyurethane-Polylactide (PUR/PLA) Flexible Filaments for 3D Fused Filament Fabrication (FFF) of Antibacterial Wound Dressings for Skin Regeneration. MATERIALS 2021; 14:ma14206054. [PMID: 34683646 PMCID: PMC8538761 DOI: 10.3390/ma14206054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 12/27/2022]
Abstract
This paper addresses the potential application of flexible thermoplastic polyurethane (TPU) and poly(lactic acid) (PLA) compositions as a material for the production of antibacterial wound dressings using the Fused Filament Fabrication (FFF) 3D printing method. On the market, there are medical-grade polyurethane filaments available, but few of them have properties required for the fabrication of wound dressings, such as flexibility and antibacterial effects. Thus, research aimed at the production, characterization and modification of filaments based on different TPU/PLA compositions was conducted. The combination of mechanical (tensile, hardness), structural (FTIR), microscopic (optical and SEM), degradation (2 M HCl, 5 M NaOH, and 0.1 M CoCl2 in 20% H2O2) and printability analysis allowed us to select the most promising composition for further antibacterial modification (COMP-7,5PLA). The thermal stability of the chosen antibiotic—amikacin—was tested using processing temperature and HPLC. Two routes were used for the antibacterial modification of the selected filament—post-processing modification (AMI-1) and modification during processing (AMI-2). The antibacterial activity and amikacin release profiles were studied. The postprocessing modification method turned out to be superior and suitable for wound dressing fabrication due to its proven antimicrobial activity against E. coli, P. fluorescens, S. aureus and S. epidermidis bacteria.
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8
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Zumbardo‐Bacelis GA, Meza‐Villegas LA, Pérez‐Aranda CA, Vargas‐Coronado R, Castillo‐Cruz O, Montaño‐Machado V, Mantovani D, Cauich‐Rodríguez JV. On arginine‐based polyurethane‐blends specific to vascular prostheses. J Appl Polym Sci 2021. [DOI: 10.1002/app.51247] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
| | | | | | | | - Omar Castillo‐Cruz
- Unidad de Materiales Centro de Investigación Científica de Yucatán Mérida Yucatán Mexico
| | - Vanessa Montaño‐Machado
- Lab. for Biomaterials & Bioengineering (CRC‐I), Dept. of Min‐Met‐Materials Engineering & CHU de Quebec Research Center, Regenerative Medicine Laval University Quebec City Canada
| | - Diego Mantovani
- Lab. for Biomaterials & Bioengineering (CRC‐I), Dept. of Min‐Met‐Materials Engineering & CHU de Quebec Research Center, Regenerative Medicine Laval University Quebec City Canada
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9
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Zhao F, Sun J, Xue W, Wang F, King MW, Yu C, Jiao Y, Sun K, Wang L. Development of a polycaprolactone/poly( p-dioxanone) bioresorbable stent with mechanically self-reinforced structure for congenital heart disease treatment. Bioact Mater 2021; 6:2969-2982. [PMID: 33732967 PMCID: PMC7930591 DOI: 10.1016/j.bioactmat.2021.02.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/11/2021] [Accepted: 02/14/2021] [Indexed: 12/12/2022] Open
Abstract
Recent progress in bioresorbable stents (BRSs) has provided a promising alternative for treating coronary artery disease. However, there is still lack of BRSs with satisfied compression and degradation performance for pediatric patients with congenital heart disease, leading to suboptimal therapy effects. Here, we developed a mechanically self-reinforced composite bioresorbable stent (cBRS) for congenital heart disease application. The cBRS consisted of poly(p-dioxanone) monofilaments and polycaprolactone/poly(p-dioxanone) core-shell composite yarns. Interlacing points in cBRS structure were partially bonded, offering the cBRS with significantly higher compression force compared to typical braids and remained good compliance. The suitable degradation profile of the cBRS can possibly preserve vascular remodeling and healing process. In addition, the controllable structural organization provides a method to customize the performance of the cBRS by altering the proportion of different components in the braids. The in vivo results suggested the cBRS supported the vessel wall similar to that of metallic stent. In both abdominal aorta and iliac artery of porcine, cBRS was entirely endothelialized within 1 month and maintained target vessels with good patency in the 12-month follow-up. The in vivo degradation profile of the cBRS is consistent with static degradation results in vitro. It is also demonstrated that there is minimal impact of pulsatile pressure of blood flow and variation of radial force on the degradation rate of the cBRS. Moreover, the lumen of cBRS implanted vessels were enlarged after 6 months, and significantly larger than the vessels implanted with metallic stent in 12 months.
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Affiliation(s)
- Fan Zhao
- College of Textiles, Donghua University, Shanghai, 201620, China
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Songjiang District, Shanghai, 201620, China
- Wilson College of Textiles, North Carolina State University, Raleigh, 27606, USA
| | - Jing Sun
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, No. 1665 Kongjiang Road, Shanghai, 200092, China
| | - Wen Xue
- College of Textiles, Donghua University, Shanghai, 201620, China
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Songjiang District, Shanghai, 201620, China
| | - Fujun Wang
- College of Textiles, Donghua University, Shanghai, 201620, China
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Songjiang District, Shanghai, 201620, China
| | - Martin W. King
- Wilson College of Textiles, North Carolina State University, Raleigh, 27606, USA
| | - Chenglong Yu
- College of Textiles, Donghua University, Shanghai, 201620, China
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Songjiang District, Shanghai, 201620, China
| | - Yongjie Jiao
- College of Textiles, Donghua University, Shanghai, 201620, China
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Songjiang District, Shanghai, 201620, China
| | - Kun Sun
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, No. 1665 Kongjiang Road, Shanghai, 200092, China
| | - Lu Wang
- College of Textiles, Donghua University, Shanghai, 201620, China
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Songjiang District, Shanghai, 201620, China
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10
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Uribe-Gomez J, Posada-Murcia A, Shukla A, Alkhamis H, Salehi S, Ionov L. Soft Elastic Fibrous Scaffolds for Muscle Tissue Engineering by Touch Spinning. ACS APPLIED BIO MATERIALS 2021; 4:5585-5597. [PMID: 35006745 DOI: 10.1021/acsabm.1c00403] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This paper reports an approach for the fabrication of highly aligned soft elastic fibrous scaffolds using touch spinning of thermoplastic polycaprolactone-polyurethane elastomers and demonstrates their potential for the engineering of muscle tissue. A family of polyester-polyurethane soft copolymers based on polycaprolactone with different molecular weights and three different chain extenders such as 1,4-butanediol and polyethylene glycols with different molecular weight was synthesized. By varying the molar ratio and molecular weights between the segments of the copolymer, different physicochemical and mechanical properties were obtained. The polymers possess elastic modulus in the range of a few megapascals and good reversibility of deformation after stretching. The combination of the selected materials and fabrication methods allows several essential advantages such as biocompatibility, biodegradability, suitable mechanical properties (elasticity and softness of the fibers), high recovery ratio, and high resilience mimicking properties of the extracellular matrix of muscle tissue. Myoblasts demonstrate high viability in contact with aligned fibrous scaffolds, where they align along the fibers, allowing efficient cell patterning on top of the structures. Altogether, the importance of this approach is the fabrication of highly oriented fiber constructs that can support the proliferation and alignment of muscle cells for muscle tissue engineering applications.
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Affiliation(s)
- Juan Uribe-Gomez
- Faculty of Engineering Sciences and Bavarian Polymer Institute, University of Bayreuth, Ludwig Thoma Str. 36A, 95447 Bayreuth, Germany
| | - Andrés Posada-Murcia
- Faculty of Engineering Sciences and Bavarian Polymer Institute, University of Bayreuth, Ludwig Thoma Str. 36A, 95447 Bayreuth, Germany
| | - Amit Shukla
- Faculty of Engineering Sciences and Bavarian Polymer Institute, University of Bayreuth, Ludwig Thoma Str. 36A, 95447 Bayreuth, Germany
| | - Hanin Alkhamis
- Faculty of Engineering Sciences and Bavarian Polymer Institute, University of Bayreuth, Ludwig Thoma Str. 36A, 95447 Bayreuth, Germany
| | - Sahar Salehi
- Department of Biomaterials, University of Bayreuth, Prof.-Rüdiger-Bormann Str. 1, 95447 Bayreuth, Germany
| | - Leonid Ionov
- Faculty of Engineering Sciences and Bavarian Polymer Institute, University of Bayreuth, Ludwig Thoma Str. 36A, 95447 Bayreuth, Germany
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11
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Sulfonated poly (Ester-Urethane) / ionic liquids systems: synthesis, characterization and properties. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02491-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Liu X, Chen B, Li Y, Kong Y, Gao M, Zhang LZ, Gu N. Development of an electrospun polycaprolactone/silk scaffold for potential vascular tissue engineering applications. J BIOACT COMPAT POL 2020. [DOI: 10.1177/0883911520973244] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Long-distance (⩾10 mm) arterial vascular defect injury was a massive challenge affecting human health. Compared with autologous transplantation, tissue-engineered scaffolds such as biocompatible silk fibroin (SF) scaffolds have been developed because they exhibit equivalent functional repair effects without adverse reactions. However, its mechanical strength and structural stability needed to be further improved to match the longer repair cycle of blood vessels while maintaining the original biological safety. Hence, we designed and prepared SF and hydrophobic polycaprolactone (PCL) composite microfibers by an improving electrospinning method. It was found that when the weight ratio of PCL to SF was 1: 1, a microfiber scaffold with high strength (6.16 N) and minimum degradability can be obtained. More importantly, compared with natural silk fibroin, the novel composite microfiber scaffolds can slightly inhibit cell infiltration and inflammation through co-culture with HUVECs in vitro and rabbit back transplantation in vivo. Furthermore, the fabricated scaffolds also demonstrated excellent structural stability in vivo because of the well-organized PCL doping in the structure. All these results indicated that the novel PCL/SF composite microfiber scaffolds were promising candidates for vascular tissue engineering applications.
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Affiliation(s)
- Xin Liu
- State Key Laboratory of Bioeletronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing, P. R. China
| | - Bo Chen
- Materials Science and Devices Institute, Suzhou University of Science and Technology, Suzhou, Jiangsu, P. R. China
| | - Yan Li
- State Key Laboratory of Bioeletronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing, P. R. China
| | - Yan Kong
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, P. R. China
- Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, P. R. China
| | - Ming Gao
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, P. R. China
- Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, P. R. China
| | - Lu Zhong Zhang
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, P. R. China
- Co-innovation Center of Neuroregeneration, Nantong, Jiangsu Province, P. R. China
| | - Ning Gu
- State Key Laboratory of Bioeletronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science & Medical Engineering, Southeast University, Nanjing, P. R. China
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13
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Composition-property relationship of polyurethane networks based on polycaprolactone diol. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03473-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Meng L, Shi X, Zhang R, Yan L, Liang Z, Nie Y, Zhou Z, Hao T. Preparation and properties study of waterborne polyurethane synthesized by mixing polyester diols and isocyanates. J Appl Polym Sci 2020. [DOI: 10.1002/app.49314] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lingqiao Meng
- School of Materials Science and EngineeringJiangsu University Zhenjiang China
| | - Xingzhao Shi
- Yixing Huaxia Chemical Materials Co., Ltd. Yixing China
| | - Ruilong Zhang
- School of Materials Science and EngineeringJiangsu University Zhenjiang China
| | - Long Yan
- School of Materials Science and EngineeringJiangsu University Zhenjiang China
| | - Zhaopeng Liang
- School of Materials Science and EngineeringJiangsu University Zhenjiang China
| | - Yijing Nie
- School of Materials Science and EngineeringJiangsu University Zhenjiang China
- Yixing Huaxia Chemical Materials Co., Ltd. Yixing China
| | - Zhiping Zhou
- School of Materials Science and EngineeringJiangsu University Zhenjiang China
| | - Tongfan Hao
- School of Materials Science and EngineeringJiangsu University Zhenjiang China
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15
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Wisnewski AV, Liu J. Molecular Characterization and Experimental Utility of Monoclonal Antibodies with Specificity for Aliphatic Di- and Polyisocyanates. Monoclon Antib Immunodiagn Immunother 2020; 39:66-73. [PMID: 32302507 DOI: 10.1089/mab.2020.0006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Aliphatic di- and polyisocyanates are crucial chemical ingredients in many industrial processes and are a well-recognized cause of occupational asthma. Serologic detection of "chemical epitopes" in biological samples could serve as an exposure surveillance approach toward disease prevention, and thus we sought to generate aliphatic isocyanate-specific monoclonal antibodies (mAbs). Three hybridomas were generated from Balb/c mice immunized with a commercial product containing a combination of uretdione, homopolymer, and monomeric forms of hexamethylene diisocyanate (HDI). Three stable hybridomas were subcloned by limiting dilution, two secreting IgG1κ and one secreting IgMκ mAb that bind aliphatic di- and polyisocyanates (conjugated to albumin), but not aromatic toluene or methylene diphenyl diisocyanate (TDI or MDI). Each mAb demonstrates slight differences in epitope specificity, for example, recognition of hydrogenated MDI (HMDI) or different carrier proteins (transferrin, actin) reacted with vapor phase HDI, and is encoded by unique recombination of different germline antibody genes, with distinct complementary determining regions. By western blot, all three mAbs detect a molecule with characteristics of an albumin adduct uniquely in urine from mice skin exposed to a mixture of aliphatic di- and polyisocyanate. Together, the data define molecular determinants of humoral immune recognition of aliphatic di- and polyisocyanates through new mAbs, which will serve as useful research reagents and may be applicable to future exposure surveillance efforts.
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Affiliation(s)
- Adam V Wisnewski
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Jian Liu
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
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16
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Bonilla-Hernández M, Zapata-Catzin GA, Castillo-Cruz ODJ, Vargas-Coronado RF, Cervantes-Uc JM, Xool-Tamayo JF, Borges-Argaez R, Hernández-Baltazar E, Cauich-Rodríguez JV. Synthesis and characterization of metformin-pluronic based polyurethanes for controlled drug delivery. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1740996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Marcos Bonilla-Hernández
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, México, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
| | - Guido Antonio Zapata-Catzin
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, México, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
| | - Omar de Jesús Castillo-Cruz
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, México, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
| | - Rossana Faride Vargas-Coronado
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, México, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
| | - José Manuel Cervantes-Uc
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, México, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
| | - Jorge Froylan Xool-Tamayo
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, México, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
| | - Rocio Borges-Argaez
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, México, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
| | | | - Juan Valerio Cauich-Rodríguez
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, México, Colonia Chuburná de Hidalgo, Mérida, Yucatán, Mexico
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Lu C, Wang C, Yu J, Wang J, Chu F. Two-Step 3 D-Printing Approach toward Sustainable, Repairable, Fluorescent Shape-Memory Thermosets Derived from Cellulose and Rosin. CHEMSUSCHEM 2020; 13:893-902. [PMID: 31782620 DOI: 10.1002/cssc.201902191] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 11/08/2019] [Accepted: 11/08/2019] [Indexed: 05/17/2023]
Abstract
Efficiently converting biomass into multifunctional polymerized materials is a challenge to effect high-valued utilization of biomass resources. A two-step 3 D-printing approach has been developed to fabricate a class of robust, fluorescent shape-memory thermosets from cellulose and rosin-based photosensitive 3 D-printing resin solution. The stereolithography 3 D printing was first performed to form the first crosslinked network by UV-induced chain-growth polymerization, which fixed the shape of thermoset. Subsequently, isocyanate was applied to react with hydroxy in the monomer to form the second crosslinked network by thermally induced step-growth polymerization. The formation of a dual-cure network, leading to phase separation and increased crosslinking density, could greatly improve the mechanical and thermal properties of 3 D-printed thermosets and endow them with thermally triggered shape-memory properties and excellent repairability. The 3 D-printed thermosets are found to have strong luminescence resulting from aggregation-induced emission originating from rosin. In addition, these 3 D-printed thermosets could degrade in the presence of NaOH aqueous solution and in situ achieved a range of flexible conductive hydrogels that have important potential application in the flexible electronic materials and smart photoelectric materials.
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Affiliation(s)
- Chuanwei Lu
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Key and Open Lab. of Forest Chemical Engineering, SFA, Key Lab. of Biomass Energy and Material, Jiangsu Province, No 16, Suojin Wucun, Nanjing, 210042, P.R. China
- Institute of Forest New Technology, CAF, No 1, Dongxiaofu Haidian, Beijing, 100091, P.R. China
| | - Chunpeng Wang
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Key and Open Lab. of Forest Chemical Engineering, SFA, Key Lab. of Biomass Energy and Material, Jiangsu Province, No 16, Suojin Wucun, Nanjing, 210042, P.R. China
- Institute of Forest New Technology, CAF, No 1, Dongxiaofu Haidian, Beijing, 100091, P.R. China
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, P.R. China
| | - Juan Yu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, P.R. China
| | - Jifu Wang
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Key and Open Lab. of Forest Chemical Engineering, SFA, Key Lab. of Biomass Energy and Material, Jiangsu Province, No 16, Suojin Wucun, Nanjing, 210042, P.R. China
- Institute of Forest New Technology, CAF, No 1, Dongxiaofu Haidian, Beijing, 100091, P.R. China
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, P.R. China
| | - Fuxiang Chu
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Key and Open Lab. of Forest Chemical Engineering, SFA, Key Lab. of Biomass Energy and Material, Jiangsu Province, No 16, Suojin Wucun, Nanjing, 210042, P.R. China
- Institute of Forest New Technology, CAF, No 1, Dongxiaofu Haidian, Beijing, 100091, P.R. China
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, P.R. China
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18
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Yang L, Li X, Wang D, Mu S, Lv W, Hao Y, Lu X, Zhang G, Nan W, Chen H, Xie L, Zhang Y, Dong Y, Zhang Q, Zhao L. Improved mechanical properties by modifying fibrin scaffold with PCL and its biocompatibility evaluation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:658-678. [PMID: 31903857 DOI: 10.1080/09205063.2019.1710370] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Lei Yang
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, China
- First Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
| | - Xiafei Li
- College of Medical Engineering, Xinxiang Medical University, Xinxiang, China
| | - Dongmei Wang
- The Third Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
| | - Songfeng Mu
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, China
- First Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
| | - Wenhao Lv
- First Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
| | - Yongwei Hao
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, China
| | - Xiaosheng Lu
- Department of Orthopaedics, People’s Hospital of Baise, Baise, China
| | | | - Wenbin Nan
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, China
| | - Hongli Chen
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, China
| | - Liqin Xie
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, China
| | - Yongjun Zhang
- First Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
| | - Yuzhen Dong
- First Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
| | - Qiqing Zhang
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, China
| | - Liang Zhao
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, China
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Moghanizadeh-Ashkezari M, Shokrollahi P, Zandi M, Shokrolahi F, Daliri MJ, Kanavi MR, Balagholi S. Vitamin C Loaded Poly(urethane-urea)/ZnAl-LDH Aligned Scaffolds Increase Proliferation of Corneal Keratocytes and Up-Regulate Vimentin Secretion. ACS APPLIED MATERIALS & INTERFACES 2019; 11:35525-35539. [PMID: 31490646 DOI: 10.1021/acsami.9b07556] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A novel poly(urethane-urea) (PUU) based on poly(glycolide-co-ε-caprolactone) macro-diol with tunable mechanical properties and biodegradation behavior is reported for corneal stromal tissue regeneration. Zn-Al layered double hydroxide (LDH) nanoparticles were synthesized and loaded with vitamin C (VC, VC-LDH) and dispersed in the PUU to control VC release in the cell culturing medium. To mimic the corneal stromal EC, scaffolds of the PUU and its nanocomposites with VC-LDH (PUU-LDH and PUU-VC-LDH) were fabricated via electrospinning. Average diameters of the aligned nanofibers were recorded as 325 ± 168, 343 ± 171, and 414 ± 275 nm for the PUU, PUU-LDH, and PUU-VC-LDH scaffolds, respectively. Results of hydrophilicity and mechanical properties measurements showed increased hydrophobicity and reduced tensile strength and elongation at break upon addition of nanoparticles to the PUU scaffold. VC release studies represented that intercalation of the drug in Zn-Al-LDH controlled the burst release and extended the release period from a few hours to 5 days. Viability and proliferation of stromal keratocyte cells on the scaffolds were investigated via AlamarBlue assay. After 24 h, the cells showed similar viability on the scaffolds and the control. After 1 week, the cells showed some degree of proliferation on the scaffolds, with the highest value recorded for PUU-VC-LDH. SEM images of the scaffolds after 24 h and 1 week confirmed good penetration and attachment of keratocytes on all the scaffolds and the cells oriented with the direction of nanofibers. After 1 week, the PUU-VC-LDH scaffold was fully covered by the cells. Immunocytochemistry assay (ICC) was performed to investigate secretion of vimentin protein, ALDH3A1, and α-SMA by the cells. After 24h and 1 week, remarkably higher levels of vimentin and ALDH3A1 and lower level of α-SMA were secreted by keratocytes on PUU-VC-LDH compared to those on the PUU and PUU-LDH scaffolds and the control. Our results suggest that the aligned PUU-VC-LDH is a promising candidate for corneal stromal tissue engineering due to the presence of zinc and vitamin C.
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Affiliation(s)
- Mojgan Moghanizadeh-Ashkezari
- Department of Biomaterials, Faculty of Science , Iran Polymer and Petrochemical Institute , 14977-13115 , Tehran , Iran
| | - Parvin Shokrollahi
- Department of Biomaterials, Faculty of Science , Iran Polymer and Petrochemical Institute , 14977-13115 , Tehran , Iran
| | - Mojgan Zandi
- Department of Biomaterials, Faculty of Science , Iran Polymer and Petrochemical Institute , 14977-13115 , Tehran , Iran
| | - Fatemeh Shokrolahi
- Department of Biomaterials, Faculty of Science , Iran Polymer and Petrochemical Institute , 14977-13115 , Tehran , Iran
| | - Morteza J Daliri
- Department of Animal and Marine Biotechnology , National Institute of Genetic Engineering and Biotechnology , 14977-16316 Tehran , Iran
| | - Mozhgan R Kanavi
- Ocular Tissue Engineering Research Center , Shahid Beheshti University of Medical Sciences , 16666-63111 , Tehran , Iran
| | - Sahar Balagholi
- Blood Transfusion Research Center , High Institute for Research and Education in Transfusion Medicine , 14665-1157 , Tehran , Iran
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21
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Aguilar-Pérez FJ, Vargas-Coronado RF, Cervantes-Uc JM, Cauich-Rodríguez JV, Rosales-Ibañez R, Rodríguez-Ortiz JA, Torres-Hernández Y. Titanium - castor oil based polyurethane composite foams for bone tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:1415-1432. [PMID: 31233380 DOI: 10.1080/09205063.2019.1636352] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Polyurethanes (PU) foams with titanium particles (Ti) were prepared with castor oil (CO) and isophorone diisocyanate (IPDI) as polymeric matrix, and 1, 3 and 5 wt.% of Ti. Composites were physicochemically and mechanically characterized and their biocompatibility assessed using human dental pulp stem cells (HDPSC). PU synthesis was confirmed by FTIR, but the presence of Ti was detected by RAMAN, X-ray diffraction (peak at 2θ = 40.2°) and by EDX-mapping. Materials showed three decomposition temperatures between 300 °C and 500 °C and their decomposition were not catalyzed by Ti particles. Compressive modulus (164-846 kPa), compressive strength (12.9-116.7 kPa) and density (128-240 kg/m3) tend to increase with Ti concentration but porosity was reduced (87% to 80%). Composites' foams were fully degraded in acid and oxidative media while remained stable in distilled water. HDPSC viability on all composites was higher than 80% up to 14 days while proliferation dropped up to 60% at 21 days. Overall, these results suggest that these foams can be used as scaffolds for bone tissue regeneration.
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Affiliation(s)
| | | | | | | | - Raúl Rosales-Ibañez
- c Laboratorio Académico de Ingeniería Tisular y Medicina Traslacional, FES Iztacala, Universidad Nacional Autónoma de México , Tlalnepantla , Estado de México , México
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22
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Kucińska-Lipka J, Lewandowska A, Szarlej P, Łapiński MS, Gubańska I. Degradable poly(ester-ether) urethanes of improved surface calcium deposition developed as novel biomaterials. J BIOACT COMPAT POL 2019. [DOI: 10.1177/0883911519854114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Bones, which are considered as hard tissues, work as scaffold for human body. They provide physical support for muscles and protect intestinal organs. Percentage of hard tissues in human body depends on age, weight, and gender. Human skeleton consists of 206 connected bones. Therefore, it is natural that the hard-tissue damage such as fractures, osteoporosis, and congenital lack of bone may appear. The innovative way of bone healing is an application of so-called tissue scaffolds. There are many synthetic polymers used in this field, but polyurethanes play a great role in this field. It is due to the possibility to control their degradation rate and to tune their surface to improve the calcification process, required for proper bone regeneration. In this article, we described the fabrication of degradable poly(ester-ether)urethane materials, having different hard-segment content (28% or 47%). PEEURs-28HS and PEEURs-47HS materials were obtained by two-step polymerization method and characterized by mechanical properties, ability to undergo oxidative degradation and surface calcification. Performed studies indicated that the PEEURs-28HS material possessed suitable properties to be proposed as a material for possible application in the bone tissue engineering.
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Affiliation(s)
- Justyna Kucińska-Lipka
- Department of Polymers Technology, Faculty of Chemistry, Gdansk University of Technology (GUT), Gdansk, Poland
| | - Alicja Lewandowska
- Department of Polymers Technology, Faculty of Chemistry, Gdansk University of Technology (GUT), Gdansk, Poland
| | - Paweł Szarlej
- Department of Polymers Technology, Faculty of Chemistry, Gdansk University of Technology (GUT), Gdansk, Poland
| | - Marcin Stanisław Łapiński
- Department of Solid State Physics, Faculty of Applied Physics and Mathematics, Gdansk University of Technology (GUT), Gdansk, Poland
| | - Iga Gubańska
- Department of Polymers Technology, Faculty of Chemistry, Gdansk University of Technology (GUT), Gdansk, Poland
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23
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Castillo-Cruz O, Avilés F, Vargas-Coronado R, Cauich-Rodríguez JV, Chan-Chan LH, Sessini V, Peponi L. Mechanical properties of l-lysine based segmented polyurethane vascular grafts and their shape memory potential. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:887-895. [PMID: 31147060 DOI: 10.1016/j.msec.2019.04.073] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/06/2019] [Accepted: 04/23/2019] [Indexed: 12/31/2022]
Abstract
Segmented polyurethanes based on polycaprolactone, 4,4 (metylene-bis-cyclohexyl) isocyanate, and l-lysine were synthesized, manufactured as small vascular grafts and characterized according to ISO 7198 standard for cardiovascular implants-tubular vascular prosthesis. In terms of mechanical properties, the newly synthesized polyurethane films exhibited lower secant modulus than Tecoflex™ SG 80A, a well-known medical grade polyurethane. Similarly, when tested as grafts, the l-lysine-based polyurethane exhibited lower longitudinal failure load (11.5 N vs. 116 N), lower circumferential failure load per unit length (5.67 N/mm vs. 14.0 N/mm) and lower suture forces for both nylon (13.3 N vs. 24.0 N) and silk (14.0 N vs. 19.3 N) when compared to Tecoflex™ SG 80A grafts. l-Lysine-based graft exhibited a burst strength of 3620 mmHg (482.6 kPa) and a compliance of 0.16%/mmHg. The cell adhesion was demonstrated with NIH/3T3 fibroblasts where cell adhesion was observed on both films and grafts, while cell alignment was observed only on the grafts. The mechanical properties of this polyurethane and the possibility of strain-induced PCL crystals as the switching phase for shape memory materials, allowed a strain recovery ratio and a strain fixity ratio with values higher than 95% and 90%, respectively, with a repeatability of the shape-memory properties up to 4 thermo-mechanical cycles. Overall, the properties of lysine-based polyurethanes are suitable for large diameter vascular grafts where cell alignment can be controlled by their shape memory potential.
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Affiliation(s)
- O Castillo-Cruz
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Materiales, Calle 43 # 130 x 32 y 34, Col. Chuburná de Hidalgo, 97205 Mérida, Yucatán, Mexico
| | - F Avilés
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Materiales, Calle 43 # 130 x 32 y 34, Col. Chuburná de Hidalgo, 97205 Mérida, Yucatán, Mexico
| | - R Vargas-Coronado
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Materiales, Calle 43 # 130 x 32 y 34, Col. Chuburná de Hidalgo, 97205 Mérida, Yucatán, Mexico
| | - J V Cauich-Rodríguez
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Materiales, Calle 43 # 130 x 32 y 34, Col. Chuburná de Hidalgo, 97205 Mérida, Yucatán, Mexico.
| | - L H Chan-Chan
- CONACyT-Universidad de Sonora, Blvd. Luis Encinas y Rosales, Centro, C.P. 83000, Hermosillo, Sonora, Mexico
| | - V Sessini
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/ Juan de la Cierva 3, 28006 Madrid, Spain
| | - L Peponi
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/ Juan de la Cierva 3, 28006 Madrid, Spain
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Abstract
Biobased aliphatic sulfonated oligoesters with 10 to 30% of sulfonated units were synthesized by melt polycondensation of biobased monomers such as diethyl succinate, z-octadec-9-enedioic acid, dimer fatty acid, sodium (sulfonated dimethyl succinate), and various diols like 1,4-butane diol and isosorbide. Structural characterization of the resulting oligoesters was determined by 1H NMR spectroscopy and MALDI-TOF MS technique. Showing a regular structure, the nature of the different expected species present in the macromolecular structure allowed the detection of etherification and cyclisation side reactions. The study of the thermal properties indicates that the resulting oligoesters are amorphous or semicrystalline that essentially depend on the nature of monomers. Films of oligoesters treated in acidic, basic, and natural media at 37°C indicate that the remaining weight depends essentially on the composition of oligoesters. Finally, sulfonated oligoester was used to prepare a biobased poly(ester-urethane) thermoset, a material having tunable properties.
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Xie F, Zhang T, Bryant P, Kurusingal V, Colwell JM, Laycock B. Degradation and stabilization of polyurethane elastomers. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2018.12.003] [Citation(s) in RCA: 143] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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26
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Biobased furano-pyridinic copolyamide-imides preparation, characterization and degradation study. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1739-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Uscátegui YL, Díaz LE, Gómez-Tejedor JA, Vallés-Lluch A, Vilariño-Feltrer G, Serrano MA, Valero MF. Candidate Polyurethanes Based on Castor Oil ( Ricinus communis), with Polycaprolactone Diol and Chitosan Additions, for Use in Biomedical Applications. Molecules 2019; 24:E237. [PMID: 30634633 PMCID: PMC6359294 DOI: 10.3390/molecules24020237] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 01/02/2019] [Accepted: 01/04/2019] [Indexed: 12/12/2022] Open
Abstract
Polyurethanes are widely used in the development of medical devices due to their biocompatibility, degradability, non-toxicity and chemical versatility. Polyurethanes were obtained from polyols derived from castor oil, and isophorone diisocyanate, with the incorporation of polycaprolactone-diol (15% w/w) and chitosan (3% w/w). The objective of this research was to evaluate the effect of the type of polyol and the incorporation of polycaprolactone-diol and chitosan on the mechanical and biological properties of the polyurethanes to identify the optimal ones for applications such as wound dressings or tissue engineering. Polyurethanes were characterized by stress-strain, contact angle by sessile drop method, thermogravimetric analysis, differential scanning calorimetry, water uptake and in vitro degradation by enzymatic processes. In vitro biological properties were evaluated by a 24 h cytotoxicity test using the colorimetric assay MTT and the LIVE/DEAD kit with cell line L-929 (mouse embryonic fibroblasts). In vitro evaluation of the possible inflammatory effect of polyurethane-based materials was evaluated by means of the expression of anti-inflammatory and proinflammatory cytokines expressed in a cellular model such as THP-1 cells by means of the MILLIPLEX® MAP kit. The modification of polyols derived from castor oil increases the mechanical properties of interest for a wide range of applications. The polyurethanes evaluated did not generate a cytotoxic effect on the evaluated cell line. The assessed polyurethanes are suggested as possible candidate biomaterials for wound dressings due to their improved mechanical properties and biocompatibility.
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Affiliation(s)
- Yomaira L Uscátegui
- Doctoral Program of Biosciences, Universidad de La Sabana, Chía 140013, Colombia.
- Energy, Materials and Environment Group, Faculty of Engineering, Universidad de La Sabana, Chía 140013, Colombia.
| | - Luis E Díaz
- Bioprospecting Research Group, Faculty of Engineering, Universidad de La Sabana, Chía 140013, Colombia.
| | - José A Gómez-Tejedor
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, Spain.
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), 46022 Valencia, Spain.
| | - Ana Vallés-Lluch
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, Spain.
| | - Guillermo Vilariño-Feltrer
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, Spain.
| | - María A Serrano
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, Spain.
| | - Manuel F Valero
- Energy, Materials and Environment Group, Faculty of Engineering, Universidad de La Sabana, Chía 140013, Colombia.
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Chernonosova VS, Gostev AA, Gao Y, Chesalov YA, Shutov AV, Pokushalov EA, Karpenko AA, Laktionov PP. Mechanical Properties and Biological Behavior of 3D Matrices Produced by Electrospinning from Protein-Enriched Polyurethane. BIOMED RESEARCH INTERNATIONAL 2018; 2018:1380606. [PMID: 30046587 PMCID: PMC6038672 DOI: 10.1155/2018/1380606] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/16/2018] [Accepted: 05/29/2018] [Indexed: 02/07/2023]
Abstract
Properties of matrices manufactured by electrospinning from solutions of polyurethane Tecoflex EG-80A with gelatin in 1,1,1,3,3,3-hexafluoroisopropanol were studied. The concentration of gelatin added to the electrospinning solution was shown to influence the mechanical properties of matrices: the dependence of matrix tensile strength on protein concentration is described by a bell-shaped curve and an increase in gelatin concentration added to the elasticity of the samples. SEM, FTIR spectroscopy, and mechanical testing demonstrate that incubation of matrices in phosphate buffer changes the structure of the fibers and alters the polyurethane-gelatin interactions, increasing matrix durability. The ability of the matrices to maintain adhesion and proliferation of human endothelial cells was studied. The results suggest that matrices made of 3% polyurethane solution with 15% gelatin (wt/wt) and treated with glutaraldehyde are the optimal variant for cultivation of endothelial cells.
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Affiliation(s)
- Vera S. Chernonosova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russia
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, Novosibirsk 630055, Russia
| | - Alexander A. Gostev
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, Novosibirsk 630055, Russia
| | - Yun Gao
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - Yuriy A. Chesalov
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Alexey V. Shutov
- Lavrentyev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Evgeniy A. Pokushalov
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, Novosibirsk 630055, Russia
| | - Andrey A. Karpenko
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, Novosibirsk 630055, Russia
| | - Pavel P. Laktionov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russia
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, Novosibirsk 630055, Russia
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29
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Influence of surface charge on the in vitro protein adsorption and cell cytotoxicity of paclitaxel loaded poly(ε-caprolactone) nanoparticles. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.bfopcu.2017.06.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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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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31
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Moghanizadeh-Ashkezari M, Shokrollahi P, Zandi M, Shokrolahi F. Polyurethanes with separately tunable biodegradation behavior and mechanical properties for tissue engineering. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4160] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Parvin Shokrollahi
- Department of Biomaterials, Faculty of Science; Iran Polymer and Petrochemical Institute; Tehran 14977-13115 Iran
| | - Mojgan Zandi
- Department of Biomaterials, Faculty of Science; Iran Polymer and Petrochemical Institute; Tehran 14977-13115 Iran
| | - Fatemeh Shokrolahi
- Department of Biomaterials, Faculty of Science; Iran Polymer and Petrochemical Institute; Tehran 14977-13115 Iran
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32
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Salehi M, Naseri-Nosar M, Ebrahimi-Barough S, Nourani M, Khojasteh A, Farzamfar S, Mansouri K, Ai J. Polyurethane/Gelatin Nanofibrils Neural Guidance Conduit Containing Platelet-Rich Plasma and Melatonin for Transplantation of Schwann Cells. Cell Mol Neurobiol 2017; 38:703-713. [DOI: 10.1007/s10571-017-0535-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 08/08/2017] [Indexed: 10/19/2022]
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Hbaieb S, Bougarech A, Kammoun W, Abid M. Application of R.O.P. in polymerization of furanic oligoesters with cyclic esters: Synthesis, characterization and degradation. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2017. [DOI: 10.1080/10601325.2017.1320760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- S. Hbaieb
- Laboratoire de Chimie Appliquée HCGP, Université de Sfax, Sfax, Tunisia
| | - A. Bougarech
- Laboratoire de Chimie Appliquée HCGP, Université de Sfax, Sfax, Tunisia
| | - W. Kammoun
- Laboratoire de Chimie Appliquée HCGP, Université de Sfax, Sfax, Tunisia
| | - M. Abid
- Laboratoire de Chimie Appliquée HCGP, Université de Sfax, Sfax, Tunisia
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Andriani Y, Chua JMW, Chua BYJ, Phang IY, Shyh-Chang N, Tan WS. Polyurethane acrylates as effective substrates for sustained in vitro culture of human myotubes. Acta Biomater 2017; 57:115-126. [PMID: 28435079 DOI: 10.1016/j.actbio.2017.04.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 04/14/2017] [Accepted: 04/19/2017] [Indexed: 12/23/2022]
Abstract
Muscular disease has debilitating effects with severe damage leading to death. Our knowledge of muscle biology, disease and treatment is largely derived from non-human cell models, even though non-human cells are known to differ from human cells in their biochemical responses. Attempts to develop highly sought after in vitro human cell models have been plagued by early cell delamination and difficulties in achieving human myotube culture in vitro. In this work, we developed polyurethane acrylate (PUA) materials to support long-term in vitro culture of human skeletal muscle tissue. Using a constant base with modulated crosslink density we were able to vary the material modulus while keeping surface chemistry and roughness constant. While previous studies have focused on materials that mimic soft muscle tissue with stiffness ca. 12kPa, we investigated materials with tendon-like surface moduli in the higher 150MPa to 2.4GPa range, which has remained unexplored. We found that PUA of an optimal modulus within this range can support human myoblast proliferation, terminal differentiation and sustenance beyond 35days, without use of any extracellular protein coating. Results show that PUA materials can serve as effective substrates for successful development of human skeletal muscle cell models and are suitable for long-term in vitro studies. STATEMENT OF SIGNIFICANCE We developed polyurethane acrylates (PUA) to modulate the human skeletal muscle cell growth and maturation in vitro by controlling surface chemistry, morphology and tuning material's stiffness. PUA was able to maintain muscle cell viability for over a month without any detectable signs of material degradation. The best performing PUA prevented premature cell detachment from the substrate which often hampered long-term muscle cell studies. It also supported muscle cell maturation up to the late stages of differentiation. The significance of these findings lies in the possibility to advance studies on muscle cell biology, disease and therapy by using human muscle cells instead of relying on the widely used animal-based in vitro models.
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Chan-Chan LH, González-García G, Vargas-Coronado RF, Cervantes-Uc JM, Hernández-Sánchez F, Marcos-Fernandez A, Cauich-Rodríguez JV. Characterization of model compounds and poly(amide-urea) urethanes based on amino acids by FTIR, NMR and other analytical techniques. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.04.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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36
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Singh C, Wang X. Metal Ion-Loaded Nanofibre Matrices for Calcification Inhibition in Polyurethane Implants. J Funct Biomater 2017. [PMID: 28644382 PMCID: PMC5618273 DOI: 10.3390/jfb8030022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Pathologic calcification leads to structural deterioration of implant materials via stiffening, stress cracking, and other structural disintegration mechanisms, and the effect can be critical for implants intended for long-term or permanent implantation. This study demonstrates the potential of using specific metal ions (MI)s for inhibiting pathological calcification in polyurethane (PU) implants. The hypothesis of using MIs as anti-calcification agents was based on the natural calcium-antagonist role of Mg2+ ions in human body, and the anti-calcification effect of Fe3+ ions in bio-prosthetic heart valves has previously been confirmed. In vitro calcification results indicated that a protective covering mesh of MI-doped PU can prevent calcification by preventing hydroxyapatite crystal growth. However, microstructure and mechanical characterisation revealed oxidative degradation effects from Fe3+ ions on the mechanical properties of the PU matrix. Therefore, from both a mechanical and anti-calcification effects point of view, Mg2+ ions are more promising candidates than Fe3+ ions. The in vitro MI release experiments demonstrated that PU microphase separation and the structural design of PU-MI matrices were important determinants of release kinetics. Increased phase separation in doped PU assisted in consistent long-term release of dissolved MIs from both hard and soft segments of the PU. The use of a composite-sandwich mesh design prevented an initial burst release which improved the late (>20 days) release rate of MIs from the matrix.
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Affiliation(s)
- Charanpreet Singh
- Australian Future Fibres Research and Innovation Centre, Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia.
| | - Xungai Wang
- Australian Future Fibres Research and Innovation Centre, Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia.
- School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430073, China.
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Mi HY, Jing X, Napiwocki BN, Hagerty BS, Chen G, Turng LS. Biocompatible, degradable thermoplastic polyurethane based on polycaprolactone-block-polytetrahydrofuran-block-polycaprolactone copolymers for soft tissue engineering. J Mater Chem B 2017; 5:4137-4151. [PMID: 29170715 PMCID: PMC5695921 DOI: 10.1039/c7tb00419b] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Biodegradable synthetic polymers have been widely used as tissue engineering scaffold materials. Even though they have shown excellent biocompatibility, they have failed to resemble the low stiffness and high elasticity of soft tissues because of the presence of massive rigid ester bonds. Herein, we synthesized a new thermoplastic polyurethane elastomer (CTC-PU(BET)) using poly ester ether triblock copolymer (polycaprolactone-block-polytetrahydrofuran-block-polycaprolactone triblock copolymer, PCTC) as the soft segment, aliphatic diisocyanate (hexamethylene diisocyanate, HDI) as the hard segment, and degradable diol (bis(2-hydroxyethyl) terephthalate, BET) as the chain extender. PCTC inhibited crystallization and reduced the melting temperature of CTC-PU(BET), and BET dramatically enhanced the thermal decomposition and hydrolytic degradation rate when compared with conventional polyester-based biodegradable TPUs. The CTC-PU(BET) synthesized in this study possessed a low tensile modulus and tensile strength of 2.2 MPa and 1.3 MPa, respectively, and an elongation-at-break over 700%. Meanwhile, it maintained a 95.3% recovery rate and 90% resilience over ten cycles of loading and unloading. In addition, the TPU could be electrospun into both random and aligned fibrous scaffolds consisting of major microfibers and nanobranches. 3T3 fibroblast cell culture confirmed that these scaffolds outperformed the conventional biodegradable TPU scaffolds in terms of substrate-cellular interactions and cell proliferation. Considering the advantages of this TPU, such as ease of synthesis, low cost, low stiffness, high elasticity, controllable degradation rate, ease of processability, and excellent biocompatibility, it has great prospects to be used as a tissue engineering scaffold material for soft tissue regeneration.
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Affiliation(s)
- Hao-Yang Mi
- Department of Mechanical Engineering, University of
Wisconsin–Madison, Madison, WI, 53706, USA
- Department of Industrial Equipment and Control Engineering, South
China University of Technology, Guangzhou, 510640, China
- Wisconsin Institute for Discovery, University of
Wisconsin–Madison, Madison, Wisconsin, 53715, USA
| | - Xin Jing
- Department of Industrial Equipment and Control Engineering, South
China University of Technology, Guangzhou, 510640, China
- Wisconsin Institute for Discovery, University of
Wisconsin–Madison, Madison, Wisconsin, 53715, USA
| | - Brett N. Napiwocki
- Wisconsin Institute for Discovery, University of
Wisconsin–Madison, Madison, Wisconsin, 53715, USA
- Department of Biomedical Engineering, University of
Wisconsin–Madison, Madison, WI, 53706, USA
| | - Breanna S. Hagerty
- Wisconsin Institute for Discovery, University of
Wisconsin–Madison, Madison, Wisconsin, 53715, USA
| | - Guojun Chen
- Wisconsin Institute for Discovery, University of
Wisconsin–Madison, Madison, Wisconsin, 53715, USA
| | - Lih-Sheng Turng
- Department of Mechanical Engineering, University of
Wisconsin–Madison, Madison, WI, 53706, USA
- Wisconsin Institute for Discovery, University of
Wisconsin–Madison, Madison, Wisconsin, 53715, USA
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38
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Ata S, Tomonoh S, Yamda T, Hata K. Improvement in thermal durability of fluorinated rubber by the addition of single-walled carbon nanotubes as a thermally stable radical scavenger. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.05.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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39
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Wang W, Zhou Z, Pan Y, Liu W, Zhou H, Liu Q, Yan H, Zhang Q. Preparation and Properties of 2, 4-2-Isocyanic Acid Methyl Ester/Poly(ϵ-caprolactone)/Diethylene Glycol Hydrogels. J MACROMOL SCI B 2017. [DOI: 10.1080/00222348.2017.1293364] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Wei Wang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Zhihua Zhou
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
- Key Laboratory of Theoretical Organic Chemistry and Functional molecular, Hunan University of Science and Technology, Xiangtan, P. R. China
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Hunan University of Science and Technology, Xiangtan, P. R. China
- Hunan Province College Key Laboratory of QSAR/QSPR, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Yifeng Pan
- Xiangya Hospital of Central South University, Changsha, P. R. China
| | - Wenjuan Liu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Hu Zhou
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Qingquan Liu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Hua Yan
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Qiao Zhang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
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40
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Synthesis, characterization and thermal, hydrolytic and oxidative degradation study of biobased (BisFuranic-Pyridinic) copolyesters. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.09.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Study on physicochemical properties of poly(ester-urethane) derived from biodegradable poly(ε-caprolactone) and poly(butylene succinate) as soft segments. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1833-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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42
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Blakney AK, Simonovsky FI, Suydam IT, Ratner BD, Woodrow KA. Rapidly Biodegrading PLGA-Polyurethane Fibers for Sustained Release of Physicochemically Diverse Drugs. ACS Biomater Sci Eng 2016; 2:1595-1607. [PMID: 28989956 PMCID: PMC5630182 DOI: 10.1021/acsbiomaterials.6b00346] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Sustained release of physicochemically diverse drugs from electrospun fibers remains a challenge and precludes the use of fibers in many medical applications. Here, we synthesize a new class of polyurethanes with poly(lactic-co-glycolic acid) (PLGA) moieties that degrade faster than polyurethanes based on polycaprolactone. The new polymers, with varying hard to soft segment ratios and fluorobenzene pendant group content, were electrospun into nanofibers and loaded with four physicochemically diverse small molecule drugs. Polymers were characterized using GPC, XPS, and 19F NMR. The size and morphology of electrospun fibers were visualized using SEM, and drug/polymer compatibility and drug crystallinity were evaluated using DSC. We measured in vitro drug release, polymer degradation and cell-culture cytotoxicity of biodegradation products. We show that these newly synthesized PLGA-based polyurethanes degrade up to 65-80% within 4 weeks and are cytocompatible in vitro. The drug-loaded electrospun fibers were amorphous solid dispersions. We found that increasing the hard to soft segment ratio of the polymer enhances the sustained release of positively charged drugs, whereas increasing the fluorobenzene pendant content caused more rapid release of some drugs. In summary, increasing the hard segment or fluorobenzene pendant content of segmented polyurethanes containing PLGA moieties allows for modulation of physicochemically diverse drug release from electrospun fibers while maintaining a biologically relevant biodegradation rate.
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Affiliation(s)
- Anna K. Blakney
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, Washington 98195, United States
| | - Felix I. Simonovsky
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, Washington 98195, United States
| | - Ian T. Suydam
- Department of Chemistry, Seattle University, 901 12th Ave., Seattle, Washington 98122, United States
| | - Buddy D. Ratner
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, Washington 98195, United States
- Department of Chemical Engineering, University of Washington, 3720 15th Ave NE, Seattle, Washington 98195, United States
| | - Kim A. Woodrow
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, Washington 98195, United States
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43
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Preparation and properties of bio-based polyurethane foams from natural rubber and polycaprolactone diol. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1081-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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44
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Xia Y, Zhou P, Wang F, Qiu C, Wang P, Zhang Y, Zhao L, Xu S. Degradability, biocompatibility, and osteogenesis of biocomposite scaffolds containing nano magnesium phosphate and wheat protein both in vitro and in vivo for bone regeneration. Int J Nanomedicine 2016; 11:3435-49. [PMID: 27555766 PMCID: PMC4968986 DOI: 10.2147/ijn.s105645] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
In this study, bioactive scaffold of nano magnesium phosphate (nMP)/wheat protein (WP) composite (MWC) was fabricated. The results revealed that the MWC scaffolds had interconnected not only macropores (sized 400–600 μm) but also micropores (sized 10–20 μm) on the walls of macropores. The MWC scaffolds containing 40 w% nMP had an appropriate degradability in phosphate-buffered saline and produced a weak alkaline microenvironment. In cell culture experiments, the results revealed that the MWC scaffolds significantly promoted the MC3T3-E1 cell proliferation, differentiation, and growth into the scaffolds. The results of synchrotron radiation microcomputed tomography and analysis of the histological sections of the in vivo implantation revealed that the MWC scaffolds evidently improved the new bone formation and bone defects repair as compared with WP scaffolds. Moreover, it was found that newly formed bone tissue continued to increase with the gradual reduction of materials residual in the MWC scaffolds. Furthermore, the immunohistochemical analysis further offered the evidence of the stimulatory effects of MWC scaffolds on osteogenic-related cell differentiation and new bone regeneration. The results indicated that MWC scaffolds with good biocompability and degradability could promote osteogenesis in vivo, which would have potential for bone tissue repair.
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Affiliation(s)
| | | | - Fei Wang
- Department of Orthopedics, Changhai Hospital, Second Military Medical University
| | - Chao Qiu
- Department of Orthopedics, Changhai Hospital, Second Military Medical University
| | | | | | - Liming Zhao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Shuogui Xu
- Department of Emergency; Department of Orthopedics, Changhai Hospital, Second Military Medical University
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Hernández-Córdova R, Mathew DA, Balint R, Carrillo-Escalante HJ, Cervantes-Uc JM, Hidalgo-Bastida LA, Hernández-Sánchez F. Indirect three-dimensional printing: A method for fabricating polyurethane-urea based cardiac scaffolds. J Biomed Mater Res A 2016; 104:1912-21. [PMID: 26991636 PMCID: PMC5338726 DOI: 10.1002/jbm.a.35721] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 03/08/2016] [Accepted: 03/15/2016] [Indexed: 11/08/2022]
Abstract
Biomaterial scaffolds are a key part of cardiac tissue engineering therapies. The group has recently synthesized a novel polycaprolactone based polyurethane-urea copolymer that showed improved mechanical properties compared with its previously published counterparts. The aim of this study was to explore whether indirect three-dimensional (3D) printing could provide a means to fabricate this novel, biodegradable polymer into a scaffold suitable for cardiac tissue engineering. Indirect 3D printing was carried out through printing water dissolvable poly(vinyl alcohol) porogens in three different sizes based on a wood-stack model, into which a polyurethane-urea solution was pressure injected. The porogens were removed, leading to soft polyurethane-urea scaffolds with regular tubular pores. The scaffolds were characterized for their compressive and tensile mechanical behavior; and their degradation was monitored for 12 months under simulated physiological conditions. Their compatibility with cardiac myocytes and performance in novel cardiac engineering-related techniques, such as aggregate seeding and bi-directional perfusion, was also assessed. The scaffolds were found to have mechanical properties similar to cardiac tissue, and good biocompatibility with cardiac myocytes. Furthermore, the incorporated cells preserved their phenotype with no signs of de-differentiation. The constructs worked well in perfusion experiments, showing enhanced seeding efficiency. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1912-1921, 2016.
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Affiliation(s)
- R Hernández-Córdova
- Centro de Investigación Científica de Yucatán, A.C., Mérida, Yucatán, México
| | - D A Mathew
- School of Healthcare Sciences, Manchester Metropolitan University, Manchester, United Kingdom
| | - R Balint
- School of Materials, University of Manchester, Manchester, United Kingdom
| | | | - J M Cervantes-Uc
- Centro de Investigación Científica de Yucatán, A.C., Mérida, Yucatán, México
| | - L A Hidalgo-Bastida
- School of Healthcare Sciences, Manchester Metropolitan University, Manchester, United Kingdom
| | - F Hernández-Sánchez
- Centro de Investigación Científica de Yucatán, A.C., Mérida, Yucatán, México
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46
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Mattu C, Silvestri A, Wang TR, Boffito M, Ranzato E, Cassino C, Ciofani G, Ciardelli G. Surface-functionalized polyurethane nanoparticles for targeted cancer therapy. POLYM INT 2016. [DOI: 10.1002/pi.5094] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Clara Mattu
- Politecnico di Torino; DIMEAS − Dipartimento di Ingegneria Meccanica e Aerospaziale; C.so Duca degli Abruzzi, 24 10129 Torino Italy
| | - Antonella Silvestri
- Politecnico di Torino; DIMEAS − Dipartimento di Ingegneria Meccanica e Aerospaziale; C.so Duca degli Abruzzi, 24 10129 Torino Italy
| | - Tian Ran Wang
- Politecnico di Torino; DIMEAS − Dipartimento di Ingegneria Meccanica e Aerospaziale; C.so Duca degli Abruzzi, 24 10129 Torino Italy
| | - Monica Boffito
- Politecnico di Torino; DIMEAS − Dipartimento di Ingegneria Meccanica e Aerospaziale; C.so Duca degli Abruzzi, 24 10129 Torino Italy
| | - Elia Ranzato
- Università Piemonte Orientale; DiSIT − Dipartimento di Scienze e Innovazione Tecnologica; Viale T. Michel, 11 15121 Alessandria Italy
| | - Claudio Cassino
- Università Piemonte Orientale; DiSIT − Dipartimento di Scienze e Innovazione Tecnologica; Viale T. Michel, 11 15121 Alessandria Italy
| | - Gianni Ciofani
- Politecnico di Torino; DIMEAS − Dipartimento di Ingegneria Meccanica e Aerospaziale; C.so Duca degli Abruzzi, 24 10129 Torino Italy
- Istituto Italiano di Tecnologia; Center for Micro-BioRobotics @SSSA; Viale Rinaldo Piaggio 34 56025 Pontedera (Pisa) Italy
| | - Gianluca Ciardelli
- Politecnico di Torino; DIMEAS − Dipartimento di Ingegneria Meccanica e Aerospaziale; C.so Duca degli Abruzzi, 24 10129 Torino Italy
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47
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Špírková M, Serkis M, Poręba R, Machová L, Hodan J, Kredatusová J, Kubies D, Zhigunov A. Experimental study of the simulated process of degradation of polycarbonate- and d,l-lactide-based polyurethane elastomers under conditions mimicking the physiological environment. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.01.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Aguilar-Pérez FJ, Vargas-Coronado RF, Cervantes-Uc JM, Cauich-Rodríguez JV, Covarrubias C, Pedram-Yazdani M. Preparation and bioactive properties of nano bioactive glass and segmented polyurethane composites. J Biomater Appl 2016; 30:1362-72. [DOI: 10.1177/0885328215626361] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Composites of glutamine-based segmented polyurethanes with 5 to 25 wt.% bioactive glass nanoparticles were prepared, characterized, and their mineralization potential was evaluated in simulated body fluid. Biocompatibility with dental pulp stem cells was assessed by MTS to an extended range of compositions (1 to 25 wt.% of bioactive glass nanoparticles). Physicochemical characterization showed that composites retained many of the matrix properties, i.e. those corresponding to semicrystalline elastomeric polymers as they exhibited a glass transition temperature (Tg) between −41 and −36℃ and a melting temperature (Tm) between 46 and 49℃ in agreement with X-ray reflections at 23.6° and 21.3°. However, with bioactive glass nanoparticles addition, tensile strength and strain were reduced from 22.2 to 12.2 MPa and 667.2 to 457.8%, respectively with 25 wt.% of bioactive glass nanoparticles. Although Fourier transform infrared spectroscopy did not show evidence of mineralization after conditioning of these composites in simulated body fluid, X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray microanalysis showed the formation of an apatite layer on the surface which increased with higher bioactive glass concentrations and longer conditioning time. Dental pulp stem cells proliferation at day 5 was improved in bioactive glass nanoparticles composites containing lower amounts of the filler (1–2.5 wt.%) but it was compromised at day 9 in composites containing high contents of nBG (5, 15, 25 wt.%). However, Runx2 gene expression was particularly upregulated for the dental pulp stem cells cultured with composites loaded with 15 and 25 wt.% of bioactive glass nanoparticles. In conclusion, low content bioactive glass nanoparticles and segmented polyurethanes composites deserve further investigation for applications such as guided bone regeneration membranes, where osteoconductivity is desirable but not a demanding mechanical performance.
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Affiliation(s)
- Fernando J Aguilar-Pérez
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Merida, México
- Facultad de Odontología, Universidad Autónoma de Yucatán, Merida, México
| | | | - Jose M Cervantes-Uc
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Merida, México
| | | | - Cristian Covarrubias
- Laboratorio de Nanobiomateriales, Facultad de Odontología, Universidad de Chile, Santiago, Chile
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Brugmans M, Sӧntjens S, Cox M, Nandakumar A, Bosman A, Mes T, Janssen H, Bouten C, Baaijens F, Driessen-Mol A. Hydrolytic and oxidative degradation of electrospun supramolecular biomaterials: In vitro degradation pathways. Acta Biomater 2015; 27:21-31. [PMID: 26316031 DOI: 10.1016/j.actbio.2015.08.034] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 08/12/2015] [Accepted: 08/22/2015] [Indexed: 12/12/2022]
Abstract
The emerging field of in situ tissue engineering (TE) of load bearing tissues places high demands on the implanted scaffolds, as these scaffolds should provide mechanical stability immediately upon implantation. The new class of synthetic supramolecular biomaterial polymers, which contain non-covalent interactions between the polymer chains, thereby forming complex 3D structures by self assembly. Here, we have aimed to map the degradation characteristics of promising (supramolecular) materials, by using a combination of in vitro tests. The selected biomaterials were all polycaprolactones (PCLs), either conventional and unmodified PCL, or PCL with supramolecular hydrogen bonding moieties (either 2-ureido-[1H]-pyrimidin-4-one or bis-urea units) incorporated into the backbone. As these materials are elastomeric, they are suitable candidates for cardiovascular TE applications. Electrospun scaffold strips of these materials were incubated with solutions containing enzymes that catalyze hydrolysis, or solutions containing oxidative species. At several time points, chemical, morphological, and mechanical properties were investigated. It was demonstrated that conventional and supramolecular PCL-based polymers respond differently to enzyme-accelerated hydrolytic or oxidative degradation, depending on the morphological and chemical composition of the material. Conventional PCL is more prone to hydrolytic enzymatic degradation as compared to the investigated supramolecular materials, while, in contrast, the latter materials are more susceptible to oxidative degradation. Given the observed degradation pathways of the examined materials, we are able to tailor degradation characteristics by combining selected PCL backbones with additional supramolecular moieties. The presented combination of in vitro test methods can be employed to screen, limit, and select biomaterials for pre-clinical in vivo studies targeted to different clinical applications.
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Controllable degradation kinetics of POSS nanoparticle-integrated poly(ε-caprolactone urea)urethane elastomers for tissue engineering applications. Sci Rep 2015; 5:15040. [PMID: 26463421 PMCID: PMC4604490 DOI: 10.1038/srep15040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 09/07/2015] [Indexed: 01/28/2023] Open
Abstract
Biodegradable elastomers are a popular choice for tissue engineering scaffolds, particularly in mechanically challenging settings (e.g. the skin). As the optimal rate of scaffold degradation depends on the tissue type to be regenerated, next-generation scaffolds must demonstrate tuneable degradation patterns. Previous investigations mainly focussed on the integration of more or less hydrolysable components to modulate degradation rates. In this study, however, the objective was to develop and synthesize a family of novel biodegradable polyurethanes (PUs) based on a poly(ε-caprolactone urea)urethane backbone integrating polyhedral oligomeric silsesquioxane (POSS-PCLU) with varying amounts of hard segments (24%, 28% and 33% (w/v)) in order to investigate the influence of hard segment chemistry on the degradation rate and profile. PUs lacking POSS nanoparticles served to prove the important function of POSS in maintaining the mechanical structures of the PU scaffolds before, during and after degradation. Mechanical testing of degraded samples revealed hard segment-dependent modulation of the materials’ viscoelastic properties, which was attributable to (i) degradation-induced changes in the PU crystallinity and (ii) either the presence or absence of POSS. In conclusion, this study presents a facile method of controlling degradation profiles of PU scaffolds used in tissue engineering applications.
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