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Metwally S, Stachewicz U. Surface potential and charges impact on cell responses on biomaterials interfaces for medical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109883. [DOI: 10.1016/j.msec.2019.109883] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 05/02/2019] [Accepted: 06/11/2019] [Indexed: 12/12/2022]
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2
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Guo G, Jin W, Jin L, Chen L, Lei Y, Wang Y. Hydrogel hybrid porcine pericardium for the fabrication of a pre-mounted TAVI valve with improved biocompatibility. J Mater Chem B 2019; 7:1427-1434. [PMID: 32255013 DOI: 10.1039/c8tb02565g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Transcatheter aortic valve implantation (TAVI) has been developed years ago for patients who cannot undergo a surgical aortic valve replacement (SAVR). Although TAVI possesses the advantages of lower trauma and simpler manipulation compared to SAVR, the need for storage in glutaraldehyde (GLU) and a tedious intraoperative assembly process have caused great inconvenience for its further application. A pre-mounted TAVI valve assembled by mounting a dry valve frame to a delivery system is expected to address these problems. However, the currently used GLU treated leaflet cannot unfold normally after being crimped for a long-term and loses its function when the BHV is assembled to the catheter. Besides, its cytotoxicity and immune response after implantation are still problems to be solved. In the present study, a hydrogel hybrid porcine pericardium (HHPP) approach was developed to endow the BHVs with a favorable unfolding property and good biocompatibility. Three monomers with different charge characteristics (sodium acrylate, 2-methacryloyloxyethyl phosphorylcholine, and acryloyloxyethyltrimethyl ammonium chloride) were complexed with GLU treated PP (GLU-PP) to form three kinds of HHPPs (SAAH-PP, MPCH-PP, and DACH-PP). The results of the crimping simulation experiment showed that all HHPPs could quickly recover in PBS after being folded for 10 days, while the traditional BHVs (GLU-PP) could not recover under the same conditions. Bovine serum albumin adsorption and platelet adhesion test showed that SAAH-PP and MPCH-PP had good anti-adhesion abilities. A cell culture study indicated that all the three HHPPs promoted HUVEC growth and proliferation. In vivo biocompatibility studies showed that the immune response induced by MPCH-PP was reduced compared to that by GLU-PP. These studies demonstrated that the strategy of MPC hydrogel hybridization may be an effective approach to prepare a pre-mounted TAVI valve with improved biocompatibility.
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Affiliation(s)
- Gaoyang Guo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
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A facile way to prepare anti-fouling and blood-compatible polyethersulfone membrane via blending with heparin-mimicking polyurethanes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:1035-1045. [DOI: 10.1016/j.msec.2017.04.123] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 04/10/2017] [Accepted: 04/13/2017] [Indexed: 12/15/2022]
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Deng J, Cheng C, Teng Y, Nie C, Zhao C. Mussel-inspired post-heparinization of a stretchable hollow hydrogel tube and its potential application as an artificial blood vessel. Polym Chem 2017. [DOI: 10.1039/c7py00071e] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We report the fabrication and post-functionalization of a highly stretchable hydrogel tube and its potential application as an artificial blood vessel.
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Affiliation(s)
- Jie Deng
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Chong Cheng
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Yingying Teng
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Chuanxiong Nie
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Changsheng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials and Engineering
- Sichuan University
- Chengdu 610065
- China
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Orellana SL, Giacaman A, Pavicic F, Vidal A, Moreno-Villoslada I, Concha M. Relevance of charge balance and hyaluronic acid on alginate-chitosan sponge microstructure and its influence on fibroblast growth. J Biomed Mater Res A 2016; 104:2537-43. [DOI: 10.1002/jbm.a.35797] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 04/20/2016] [Accepted: 05/25/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Sandra L. Orellana
- Instituto de Ciencias Químicas, Facultad de Ciencias; Universidad Austral de Chile; Casilla 567 Valdivia Chile
| | - Annesi Giacaman
- Instituto de Anatomía, Histología & Patología, Facultad de Medicina; Universidad Austral de Chile; Casilla 567 Valdivia Chile
| | - Francisca Pavicic
- Instituto de Anatomía, Histología & Patología, Facultad de Medicina; Universidad Austral de Chile; Casilla 567 Valdivia Chile
| | - Alejandra Vidal
- Instituto de Anatomía, Histología & Patología, Facultad de Medicina; Universidad Austral de Chile; Casilla 567 Valdivia Chile
| | - Ignacio Moreno-Villoslada
- Instituto de Ciencias Químicas, Facultad de Ciencias; Universidad Austral de Chile; Casilla 567 Valdivia Chile
| | - Miguel Concha
- Instituto de Anatomía, Histología & Patología, Facultad de Medicina; Universidad Austral de Chile; Casilla 567 Valdivia Chile
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Wang L, Li H, Chen S, Nie C, Cheng C, Zhao C. Interfacial Self-Assembly of Heparin-Mimetic Multilayer on Membrane Substrate as Effective Antithrombotic, Endothelialization, and Antibacterial Coating. ACS Biomater Sci Eng 2015; 1:1183-1193. [PMID: 33429557 DOI: 10.1021/acsbiomaterials.5b00320] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this study, we design the interfacial self-assembly of heparin-mimetic multilayer on poly(ether sulfone) (PES) membrane, which can endow the substrate with excellent cytocompatibility, highly hemocompatibility and enhanced antibacterial properties. The coated 3D sponge-like multilayer was fabricated by surface engineered layer by layer assembly of sulfonic amino polyether sulfone (SNPES) and quaternized chitosan (QC). The cell morphology observation and viability evaluation suggested that the assembled multilayer coating had remarkable cytocompatibility with endothelial cells due to the synergistic promotion of bovine serum albumin adsorption and heparin-mimetic groups; which further indicated that surface endothelialization could be achieved on the heparin-mimetic multilayer. The systematical tests of antithrombotic and blood activation indicated that the heparin-mimetic multilayer-coated membrane owned significantly suppressed adsorption of bovine serum fibrinogen, platelet adhesion and activation, prolonged clotting times, as well as lower activation of blood complement. Furthermore, the antibacterial test suggested the multilayer coated substrates exhibited obvious inhibition capability for both Escherichia coli and Staphylococcus aureus. Therefore, we believe that the developed SNPES/QC multilayer on PES membrane show great potential as a multifunctional coating toward versatile biomedical applications due to the integrated and highly effective antithrombotic, endothelialization, and antibacterial properties.
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Affiliation(s)
- Lingren Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.,Jiangsu Provincial Key Laboratory for Interventional Medical Devices. Huaiyin Institute of Technology, Huaian 223003, China
| | - Hao Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Shuai Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Chuanxiong Nie
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.,Department of Chemistry and Biochemistry, Freie Universitat Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Changsheng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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Nie C, Ma L, Cheng C, Deng J, Zhao C. Nanofibrous heparin and heparin-mimicking multilayers as highly effective endothelialization and antithrombogenic coatings. Biomacromolecules 2015; 16:992-1001. [PMID: 25668587 DOI: 10.1021/bm501882b] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Combining the advantages of the fibrous nanostructure of carbon nanotubes (CNTs) and the bioactivities of heparin/heparin-mimicking polyanions, functional nanofibrous heparin or heparin-mimicking multilayers were constructed on PVDF membrane with highly promoted endothelialization and antithrombogenic activities. Oxidized CNT (oCNT) was first functionalized with water-soluble chitosan (polycation), then enwrapped with heparin or a typical sulfonated heparin-mimicking polymers (poly(sodium 4-styrenesulfonate-co-sodium methacrylate)) to construct the multilayers. Then, the surface-deposited multilayers were constructed via electrostatic layer-by-layer assembly of the functionalized oCNTs. The scanning electron microscope and atom force microscope images confirmed that the coated multilayers exhibited nanofibrous and porous structure. The live/dead cell staining and cell viability assay results indicated that the coated nanofibrous multilayers had excellent compatibility with endothelial cells. The cell morphology observation further confirmed the promotion ability of surface endothelialization due to the coated heparin/heparin-mimicking multilayers. Further systematical evaluation on blood compatibility revealed that the surface heparin/heparin-mimicking multilayer-coated membranes also had significantly improved blood compatibility including restrained platelet adhesion and activation, prolonged blood clotting times, and inhibited activation of coagulation and complement factors. In summary, the proposed nanofibrous multilayers integrated endothelialization and antithrombogenic properties; meanwhile, the heparin-mimicking coating validated comparable performances as heparin coating. Herein, it is expected that the surface coating of nanofibrous multilayers, especially the facilely constructed heparin-mimicking coating, may have great application potential in biomedical fields.
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Affiliation(s)
- Chuanxiong Nie
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University , No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
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Deng J, Liu X, Ma L, Cheng C, Shi W, Nie C, Zhao C. Heparin-mimicking multilayer coating on polymeric membrane via LbL assembly of cyclodextrin-based supramolecules. ACS APPLIED MATERIALS & INTERFACES 2014; 6:21603-21614. [PMID: 25375347 DOI: 10.1021/am506249r] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this study, multifunctional and heparin-mimicking star-shaped supramolecules-deposited 3D porous multilayer films with improved biocompatibility were fabricated via a layer-by-layer (LbL) self-assembly method on polymeric membrane substrates. Star-shaped heparin-mimicking polyanions (including poly(styrenesulfonate-co-sodium acrylate; Star-PSS-AANa) and poly(styrenesulfonate-co-poly(ethylene glycol)methyl ether methacrylate; Star-PSS-EGMA)) and polycations (poly(methyl chloride-quaternized 2-(dimethylamino)ethyl methacrylate; Star-PMeDMA) were first synthesized by atom transfer radical polymerization (ATRP) from β-cyclodextrin (β-CD) based cores. Then assembly of 3D porous multilayers onto polymeric membrane surfaces was carried out by alternating deposition of the polyanions and polycations via electrostatic interaction. The surface morphology and composition, water contact angle, blood activation, and thrombotic potential as well as cell viability for the coated heparin-mimicking films were systematically investigated. The results of surface ATR-FTIR spectra and XPS spectra verified successful deposition of the star-shaped supramolecules onto the biomedical membrane surfaces; scanning electron microscopy (SEM) and atomic force microscopy (AFM) observations revealed that the modified substrate had 3D porous surface morphology, which might have a great biological influence on the biointerface. Furthermore, systematic in vitro investigation of protein adsorption, platelet adhesion, human platelet factor 4 (PF4, indicates platelet activation), activate partial thromboplastin time (APTT), thrombin time (TT), coagulation activation (thrombin-antithrombin III complex (TAT, indicates blood coagulant)), and blood-related complement activation (C3a and C5a, indicates inflammation potential) confirmed that the heparin-mimicking multilayer coated membranes exhibited ultralow blood component activations and excellent hemocompatibility. Meanwhile, after surface coating, endothelial cell viability was also promoted, which indicated that the heparin-mimicking multilayer coating might extend the application fields of polymeric membranes in biomedical fields.
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Affiliation(s)
- Jie Deng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu 610065, China
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Engineered hypopharynx from coculture of epithelial cells and fibroblasts using poly(ester urethane) as substratum. BIOMED RESEARCH INTERNATIONAL 2013; 2013:138504. [PMID: 24455669 PMCID: PMC3881389 DOI: 10.1155/2013/138504] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 12/02/2013] [Indexed: 11/27/2022]
Abstract
Porous polymeric scaffolds have been much investigated and applied in the field of tissue engineering research. Poly(ester urethane) (PEU) scaffolds, comprising pores of 1–20 μm in diameter on one surface and ≥200 μm on the opposite surface and in bulk, were fabricated using phase separation method for hypopharyngeal tissue engineering. The scaffolds were grafted with silk fibroin (SF) generated from natural silkworm cocoon to enhance the scaffold's hydrophilicity and further improve cytocompatibility to both primary epithelial cells (ECs) and fibroblasts of human hypopharynx tissue. Coculture of ECs and fibroblasts was conducted on the SF-grafted PEU scaffold (PEU-SF) to evaluate its in vitro cytocompatibility. After co-culture for 14 days, ECs were lined on the scaffold surface while fibroblasts were distributed in scaffold bulk. The results of in vivo investigation showed that PEU porous scaffold possessed good biocompatibility after it was grafted by silk fibroin. SF grafting improved the cell/tissue infiltration into scaffold bulk. Thus, PEU-SF porous scaffold is expected to be a good candidate to support the hypopharynx regeneration.
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Mantripragada VP, Lecka-Czernik B, Ebraheim NA, Jayasuriya AC. An overview of recent advances in designing orthopedic and craniofacial implants. J Biomed Mater Res A 2013; 101:3349-64. [PMID: 23766134 PMCID: PMC4854641 DOI: 10.1002/jbm.a.34605] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 01/11/2013] [Accepted: 01/11/2013] [Indexed: 01/22/2023]
Abstract
Great deal of research is still going on in the field of orthopedic and craniofacial implant development to resolve various issues being faced by the industry today. Despite several disadvantages of the metallic implants, they continue to be used, primarily because of their superior mechanical properties. In order to minimize the harmful effects of the metallic implants and its by-products, several modifications are being made to these materials, for instance nickel-free stainless steel, cobalt-chromium and titanium alloys are being introduced to eliminate the toxic effects of nickel being released from the alloys, introduce metallic implants with lower modulus, reduce the cost of these alloys by replacing rare elements with less expensive elements etc. New alloys like tantalum, niobium, zirconium, and magnesium are receiving attention given their satisfying mechanical and biological properties. Non-oxide ceramics like silicon nitride and silicon carbide are being currently developed as a promising implant material possessing a combination of properties such as good wear and corrosion resistance, increased ductility, good fracture and creep resistance, and relatively high hardness in comparison to alumina. Polymer/magnesium composites are being developed to improve mechanical properties as well as retain polymer's property of degradation. Recent advances in orthobiologics are proving interesting as well. This paper thus deals with the latest improvements being made to the existing implant materials and includes new materials being introduced in the field of biomaterials.
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Sisson AL, Ekinci D, Lendlein A. The contemporary role of ε-caprolactone chemistry to create advanced polymer architectures. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.04.045] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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12
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Surface Modification of Biodegradable Polyesters for Soft and Hard Tissue Regeneration. THIN FILMS AND COATINGS IN BIOLOGY 2013. [DOI: 10.1007/978-94-007-2592-8_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Shen Z, Kang C, Chen J, Ye D, Qiu S, Guo S, Zhu Y. Surface modification of polyurethane towards promoting the ex vivo cytocompatibility and in vivo biocompatibility for hypopharyngeal tissue engineering. J Biomater Appl 2012; 28:607-16. [PMID: 23241963 DOI: 10.1177/0885328212468184] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Polymeric substrates with good biocompatibility have been widely employed to create a living construct with the complexities of tissue histology and function in the field of tissue engineering. In this study, poly(ester-urethane) (58213, NAT022) was used to be substrate due to its good physical and chemical properties. Proteins like gelatin or silk fibroin were covalently bonded on its surface using method of diamine aminolysis and glutaraldehyde crosslinking, which had been setup in our group in order to improve poly(ester-urethane)’s hydrophilicity and biocompatibility. The modification was proved by the measurements of static and dynamic contact angles and fluorescence detection. The biological properties were evaluated as in vitro cell culture and in vivo transplantation via cell number counting, morphology observation, immunohistochemistry analysis, etc. The results showed that gelatin or silk fibroin grafted membrane displayed good cytocompatibility, i.e. good proliferation and differentiation of human hypopharynx fibroblast and skeletal muscle cell though the control poly(ester-urethane) indicated low toxicity to cells and good biocompatibility, which was also verified in in vivo experiment. After poly(ester-urethane)–silk fibroin was implanted subcutaneously in rat back, it exhibited a better compatibility to peripheral tissue and faster biodegradation than the control poly(ester-urethane) did. This information supplied us valuable knowledge for poly(ester-urethane) to be used as matrix in situ hypopharynx regeneration study.
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Affiliation(s)
- Zhisen Shen
- Department of Otorhinolaryngology (Head and Neck Surgery), Lihuili Hospital of Ningbo University, Ningbo, China
| | - Cheng Kang
- The Medical School, Ningbo University, Ningbo, China
| | - Jingjing Chen
- The Medical School, Ningbo University, Ningbo, China
| | - Dong Ye
- Department of Otorhinolaryngology (Head and Neck Surgery), Lihuili Hospital of Ningbo University, Ningbo, China
| | - Shijie Qiu
- Department of Otorhinolaryngology (Head and Neck Surgery), Lihuili Hospital of Ningbo University, Ningbo, China
| | - Shanshan Guo
- The Medical School, Ningbo University, Ningbo, China
| | - Yabin Zhu
- The Medical School, Ningbo University, Ningbo, China
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González-Paz RJ, Lligadas G, Ronda JC, Galià M, Ferreira AM, Boccafoschi F, Ciardelli G, Cádiz V. Enhancement of fatty acid-based polyurethanes cytocompatibility by non-covalent anchoring of chondroitin sulfate. Macromol Biosci 2012; 12:1697-705. [PMID: 23077104 DOI: 10.1002/mabi.201200259] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 08/20/2012] [Indexed: 01/08/2023]
Abstract
For tissue engineering purpose biopolymer chondroitin sulfate (CS), one of the major components of cartilage and bone extracellular matrix, was immobilized onto the surface of amino-functionalized polyurethane (PU) films derived from naturally occurring oleic and 10-undecenoic acids. The amino-functionalized PUs were prepared by aminolysis with 1,6-hexamethylenediamine of synthesized PUs containing methyl ester groups. FTIR-ATR, XPS, SEM, and water contact angle measurements were used to confirm the surface changes at each step of treatment, both in morphologies and chemical composition. Cytotoxicity and cell morphology analysis using osteoblast cell line MG63 showed that PU-CS films are suitable materials for cell growth, spreading, and differentiation.
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Affiliation(s)
- Rodolfo J González-Paz
- Department of Analytical and Organic Chemistry, Rovira i Virgili University, Campus Sescelades, C/Marcel.lí Domingo s/n, 43007 Tarragona, Spain
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Liu Z, Deng X, Wang M, Chen J, Zhang A, Gu Z, Zhao C. BSA-Modified Polyethersulfone Membrane: Preparation, Characterization and Biocompatibility. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 20:377-97. [DOI: 10.1163/156856209x412227] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Zongbin Liu
- a College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Xiaopei Deng
- b College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Meng Wang
- c College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Jingxia Chen
- d College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Aimin Zhang
- e College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Zhongwei Gu
- f National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, People's Republic of China
| | - Changsheng Zhao
- g College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China; National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, People's Republic of China
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Haddad S, Zanina N, Othmane A, Mora L. Polyurethane films modified by antithrombin–heparin complex to enhance endothelialization: An original impedimetric analysis. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.06.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Cellular interactions of monodisperse poly(GDMA) latex particles-containing DMAEM brushes. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.03.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Cao B, Yan S, Zhang K, Song Z, Cao T, Chen X, Cui L, Yin J. A Poly(acrylic acid)-block-
Poly(L
-glutamic acid) Diblock Copolymer with Improved Cell Adhesion for Surface Modification. Macromol Biosci 2011; 11:970-7. [DOI: 10.1002/mabi.201100010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 02/24/2011] [Indexed: 11/10/2022]
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Antunes JC, Oliveira JM, Reis RL, Soria JM, Gómez-Ribelles JL, Mano JF. Novel poly(L-lactic acid)/hyaluronic acid macroporous hybrid scaffolds: Characterization and assessment of cytotoxicity. J Biomed Mater Res A 2010; 94:856-69. [DOI: 10.1002/jbm.a.32753] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Nan YF, Luo YL, Xu F, Chen YS, Di HW. Synthesis and characterization of novel h-HTBN/PEG PU copolymers: effect of surface properties on hemocompatibility. POLYM ADVAN TECHNOL 2009. [DOI: 10.1002/pat.1581] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Lichter JA, Van Vliet KJ, Rubner MF. Design of Antibacterial Surfaces and Interfaces: Polyelectrolyte Multilayers as a Multifunctional Platform. Macromolecules 2009. [DOI: 10.1021/ma901356s] [Citation(s) in RCA: 389] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jenny A. Lichter
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Krystyn J. Van Vliet
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Michael F. Rubner
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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Li X, Xie J, Yuan X, Xia Y. Coating electrospun poly(epsilon-caprolactone) fibers with gelatin and calcium phosphate and their use as biomimetic scaffolds for bone tissue engineering. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:14145-14150. [PMID: 19053657 DOI: 10.1021/la802984a] [Citation(s) in RCA: 155] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Electrospinning was employed to fabricate fibrous scaffolds of poly(epsilon-caprolactone) in the form of nonwoven mats. The surfaces of the fibers were then coated with gelatin through layer-by-layer self-assembly, followed by functionalization with a uniform coating of bonelike calcium phosphate by mineralization in the 10 times concentrated simulated body fluid for 2 h. Transmission electron microscopy, water contact angle, and scanning electron microscopy measurements confirmed the presence of gelatin and calcium phosphate coating layers, and X-ray diffraction results suggested that the deposited mineral phase was a mixture of dicalcium phosphate dehydrate (a precursor to apatite) and apatite. It was also demonstrated that the incorporation of gelatin promoted nucleation and growth of calcium phosphate. The porous scaffolds could mimic the structure, composition, and biological function of bone extracellular matrix. It was found that the preosteoblastic MC3T3-E1 cells attached, spread, and proliferated well with a flat morphology on the mineralized scaffolds. The proliferation rate of the cells on the mineralized scaffolds was significantly higher (by 1.9-fold) than that on the pristine fibrous scaffolds after culture for 7 days. These results indicated that the hybrid system containing poly(epsilon-caprolactone), gelatin, and calcium phosphate could serve as a new class of biomimetic scaffolds for bone tissue engineering.
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Affiliation(s)
- Xiaoran Li
- Department of Biomedical Engineering, Washington University, St. Louis, Missouri 63130, USA
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Lucchesi C, Ferreira BMP, Duek EAR, Santos AR, Joazeiro PP. Increased response of Vero cells to PHBV matrices treated by plasma. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2008; 19:635-43. [PMID: 17619989 DOI: 10.1007/s10856-007-0169-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2006] [Accepted: 02/12/2007] [Indexed: 05/16/2023]
Abstract
The copolymers poly(3-hydroxybutyric acid-co-3-hydroxyvaleric acid) (PHBV) are being intensely studied as a tissue engineering substrate. It is known that poly 3-hydroxybutyric acids (PHBs) and their copolymers are quite hydrophobic polyesters. Plasma-surface modification is an effective and economical surface treatment technique for many materials and of growing interest in biomedical engineering. In this study we investigate the advantages of oxygen and nitrogen plasma treatment to modify the PHBV surface to enable the acceleration of Vero cell adhesion and proliferation. PHBV was dissolved in methylene chloride at room temperature. The PHBV membranes were modified by oxygen or nitrogen-plasma treatments using a plasma generator. The membranes were sterilized by UV irradiation for 30 min and placed in 96-well plates. Vero cells were seeded onto the membranes and their proliferation onto the matrices was also determined by cytotoxicity and cell adhesion assay. After 2, 24, 48 and 120 h of incubation, growth of fibroblasts on matrices was observed by scanning electron microscopy (SEM). The analyses of the membranes indicated that the plasma treatment decreased the contact angle and increased the surface roughness; it also changed surface morphology, and consequently, enhanced the hydrophilic behavior of PHBV polymers. SEM analysis of Vero cells adhered to PHBV treated by plasma showed that the modified surface had allowed better cell attachment, spreading and growth than the untreated membrane. This combination of surface treatment and polymer chemistry is a valuable guide to prepare an appropriate surface for tissue engineering application.
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Affiliation(s)
- Carolina Lucchesi
- Department of Histology and Embryology, Institute of Biology, State University of Campinas, Campinas, SP, Brazil
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Bonzani IC, Adhikari R, Houshyar S, Mayadunne R, Gunatillake P, Stevens MM. Synthesis of two-component injectable polyurethanes for bone tissue engineering. Biomaterials 2007; 28:423-33. [PMID: 16979756 DOI: 10.1016/j.biomaterials.2006.08.026] [Citation(s) in RCA: 127] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2006] [Accepted: 08/16/2006] [Indexed: 11/22/2022]
Abstract
The advent of injectable polymer technologies has increased the prospect of developing novel, minimally invasive arthroscopic techniques to treat a wide variety of ailments. In this study, we have synthesised and evaluated a novel polyurethane-based injectable, in situ curable, polymer platform to determine its potential uses as a tissue engineered implant. Films of the polymers were prepared by reacting two pentaerythritol-based prepolymers, and characterised for mechanical and surface properties, and cytocompatibility. This polymer platform displayed mechanical strength and elasticity superior to many injectable bone cements and grafts. Cytotoxicity tests using primary human osteoblasts, revealed positive cell viability and increased proliferation over a period of 7 days in culture. This favourable cell environment was attributed to the hydrophilic nature of the films, as assessed by dynamic contact angle (DCA) analysis of the sample surfaces. The incorporation of beta-TCP was shown to improve mechanical properties, surface wettability, and cell viability and proliferation, compared to the other sample types. SEM/EDX analysis of these surfaces also revealed physicochemical surface heterogeneity in the presence of beta-TCP. Based on preliminary mechanical analysis and cytotoxicity results, these injectable polymers may have a number or potential orthopaedic applications; ranging from bone glues to scaffolds for bone regeneration.
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Affiliation(s)
- Ian C Bonzani
- Department of Materials, Imperial College London, London SW7 2AZ, UK
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25
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Wang HJ, Liu XM, Ji LW, Ma DL, Ren Q, Wang JY. Film from peroxidation of an amino phospholipid and its biocompatibility. J Biomed Mater Res B Appl Biomater 2006; 79:411-9. [PMID: 16649174 DOI: 10.1002/jbm.b.30555] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A new kind of phospholipid product with fluorescence was derived from autoxidation of an aminophospholipid, L-alpha-phosphatidylethanolamine dilinoleoyl in solid film state. Atomic force microscopy showed that the film product was composed of round and elliptical vesicles with diameters of about 20-45 nm. The product was difficult to dissolve in water and most organic solvents. Fourier transform infrared spectroscopy, solid-state (13)C NMR, and solid-state (31)P NMR indicated that the unsaturated double carbon bond decreased with the reaction, and polymerization within/between phospholipid molecules occurred. Endothelial cells from human vein seeded onto the film showed the highest proliferating activity compared with seeding onto Corning culture plate, glass plate, or phospholipid film with phosphorylcholine head group, as evaluated by 3-(4,5-timethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay (p < 0.001). The hemocompatibility of the film was also assessed by platelet adhesion and protein adsorption. The results suggest that the product has potential applications as a new biomaterial coating.
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Affiliation(s)
- Hua-Jie Wang
- School of Life Science and Biotechnology, Shanghai Jiaotong University, 800 Dong-Chuan Road, Shanghai 200240, People's Republic of China
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