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Romanova OA, Klein OI, Sytina EV, Rudyak SG, Patsaev TD, Tenchurin TH, Grigorchuk AY, Demina TS, Chvalun SN, Panteleyev AA. Fibroblasts and polymer composition are essential for bioengineering of airway epithelium on nonwoven scaffolds. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:851-868. [PMID: 38310545 DOI: 10.1080/09205063.2024.2310370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 12/19/2024] [Indexed: 02/06/2024]
Abstract
To make tissue engineering a truly effective tool, it is necessary to understand how the patterns of specific tissue development are modulated by and depend on the artificial environment. Even the most advanced approaches still do not fully meet the requirements of practical engineering of tracheobronchial epithelium. This study aimed to test the ability of the synthetic and natural nonwoven scaffolds to support the formation of morphological sound airway epithelium including the basement membrane (BM). We also sought to identify the potential role of fibroblasts in this process. Our results showed that nonwoven scaffolds are generally suitable for producing well-differentiated tracheobronchial epithelium (with cilia and goblet cells), while the structure and functionality of the equivalents appeared to be highly dependent on the composition of the scaffolds. Unlike natural scaffolds, synthetic ones supported the formation of the epithelium only when epithelial cells were cocultured with fibroblasts. Fibroblasts also appeared to be obligatory for basal lamina formation, regardless of the type of the nonwoven material used. However, even in the presence of fibroblasts, the synthetic scaffolds were unable to support the formation of the epithelium and of the BM (in particular, basal lamina) as effectively as the natural scaffolds did.
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Affiliation(s)
| | - Olga I Klein
- NRC Kurchatov Institute, Moscow, Russian Federation
- The Federal Research Center "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Bach Institute of Biochemistry
| | | | - Stanislav G Rudyak
- Pirogov Russian National Research Medical University, Moscow, Russian Federation
| | | | | | | | - Tatiana S Demina
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, Moscow, Russian Federation
| | - Sergey N Chvalun
- NRC Kurchatov Institute, Moscow, Russian Federation
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, Moscow, Russian Federation
| | - Andrey A Panteleyev
- NRC Kurchatov Institute, Moscow, Russian Federation
- A.V. Vishnevsky Institute of Surgery, Moscow, Russian Federation
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2
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Martínez Cutillas A, Sanz-Serrano D, Oh S, Ventura F, Martínez de Ilarduya A. Synthesis of Functionalized Triblock Copolyesters Derived from Lactic Acid and Macrolactones for Bone Tissue Regeneration. Macromol Biosci 2023; 23:e2300066. [PMID: 37031382 DOI: 10.1002/mabi.202300066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/24/2023] [Indexed: 04/10/2023]
Abstract
Synthetic and functional grafts are a great alternative to conventional grafts. They can provide a physical support and the precise signaling for cells to heal damaged tissues. In this study, a novel RGD peptide end-functionalized poly(ethylene glycol)-b-poly(lactic acid)-b-poly(globalide)-b-poly(lactic acid)-b-poly(ethylene glycol) (RGD-PEG-PLA-PGl-PLA-PEG-RGD) is synthetized and used to prepare functional scaffolds. The PGl inner block is obtained by enzymatic ring-opening polymerization of globalide. The outer PLA blocks are obtained by ring-opening polymerization of both, l-lactide or a racemic mixture, initiated by the α-ω-telechelic polymacrolactone. The presence of PGl inner block enhances the toughness of PLA-based scaffolds, with an increase of the elongation at break up to 300% when the longer block of PGl is used. PLA-PGl-PLA copolymer is coupled with α-ω-telechelic PEG diacids by esterification reaction. PEGylation provides hydrophilic scaffolds as the contact angle is reduced from 114° to 74.8°. That difference improves the contact between the scaffolds and the culture media. Moreover, the scaffolds are functionalized with RGD peptides at the surface significantly enhancing the adhesion and proliferation of bone marrow-derived primary mesenchymal stem cells and MC3T3-E1 cell lines in vitro. These results place this multifunctional polymer as a great candidate for the preparation of temporary grafts.
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Affiliation(s)
- A Martínez Cutillas
- Artificial Nature S.L., Baldiri i Reixac 10, Barcelona, 08028, Spain
- Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, ETSEIB, Diagonal 647, Barcelona, 08028, Spain
| | - D Sanz-Serrano
- Departament de Ciències Fisiològiques, Universitat de Barcelona, IDIBELL, L'Hospitalet de Llobregat, Barcelona, 08907, Spain
| | - S Oh
- Artificial Nature S.L., Baldiri i Reixac 10, Barcelona, 08028, Spain
| | - F Ventura
- Departament de Ciències Fisiològiques, Universitat de Barcelona, IDIBELL, L'Hospitalet de Llobregat, Barcelona, 08907, Spain
| | - A Martínez de Ilarduya
- Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, ETSEIB, Diagonal 647, Barcelona, 08028, Spain
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3
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Dixon DT, Gomillion CT. 3D-Printed conductive polymeric scaffolds with direct current electrical stimulation for enhanced bone regeneration. J Biomed Mater Res B Appl Biomater 2023; 111:1351-1364. [PMID: 36825765 DOI: 10.1002/jbm.b.35239] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 12/13/2022] [Accepted: 02/10/2023] [Indexed: 02/25/2023]
Abstract
Various methods have been used to treat bone defects caused by genetic disorders, injury, or disease. Yet, there is still great need to develop alternative approaches to repair damaged bone tissue. Bones naturally exhibit piezoelectric potential, or the ability to convert mechanical stresses into electrical impulses. This phenomenon has been utilized clinically to enhance bone regeneration in conjunction with electrical stimulation (ES) therapies; however, oftentimes with critical-sized bone defects, the bioelectric potential at the site of injury is compromised, resulting in less desirable outcomes. In the present study, the potential of a 3D-printed conductive polymer blend to enhance bone formation through restoration of the bioelectrical microenvironment was evaluated. A commercially available 3D printer was used to create circular, thin-film scaffolds consisting of either polylactide (PLA) or a conductive PLA (CPLA) composite. Preosteoblast cells were seeded onto the scaffolds and subjected to direct current ES via a purpose-built cell culture chamber. It was found that CPLA scaffolds had no adverse effects on cell viability, proliferation or differentiation when compared with control scaffolds. The addition of ES, however, resulted in a significant increase in the expression of osteocalcin, a protein indicative of osteoblast maturation, after 14 days of culture. Furthermore, xylenol orange staining also showed the presence of increased mineralized calcium nodules in cultures undergoing stimulation. This study demonstrates the potential for low-cost, conductive scaffolding materials to support cell viability and enhance in vitro mineralization in conjunction with ES.
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Affiliation(s)
- Damion T Dixon
- School of Environmental, Civil, Agricultural and Mechanical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
| | - Cheryl T Gomillion
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
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4
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Sizing down and functionalizing polylactide (PLA) resin for synthesis of PLA-based polyurethanes for use in biomedical applications. Sci Rep 2023; 13:2284. [PMID: 36759697 PMCID: PMC9911729 DOI: 10.1038/s41598-023-29496-x] [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: 11/29/2022] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Alcoholysis is a promising approach for upcycling postconsumer polylactide (PLA) products into valuable constituents. In addition, an alcohol-acidolysis of PLA by multifunctional 2,2-bis(hydroxymethyl)propionic acid (DMPA) produces lactate oligomers with hydroxyl and carboxylic acid terminals. In this work, a process for sizing down commercial PLA resin to optimum medium-sized lactate oligomers is developed at a lower cost than a bottom-up synthesis from its monomer. The microwave-assisted reaction is conveniently conducted at 220-240 °C and pressure lower than 100 psi. The PLA resin was completely converted via alcohol-acidolysis reaction, with a product purification yield as high as 93%. The resulting products are characterized by FTIR, 2D-NMR, 1H-NMR, GPC, DSC, and XRD spectroscopy. The effects of PLA: DMPA feed ratios and the incorporation of 1,4-butanediol (BDO) on the structures, properties, and particle formability of the alcohol-acidolyzed products are examined. The products from a ratio of 12:1, which possessed optimum size and structures, are used to synthesize PLA-based polyurethane (PUD) by reacting with 1,6-diisocyanatohexane (HDI). The resulting PUD is employed in encapsulating lavender essential oil (LO). Without using any surfactant, stable LO-loaded nanoparticles are prepared due to the copolymer's self-stabilizability from its carboxylate groups. The effect of the polymer: LO feed ratio (1.25-3.75: 1) on the physicochemical properties of the resulting nanoparticles, e.g., colloidal stability (zeta potential > -60 mV), hydrodynamic size (300-500 nm), encapsulation efficiency (80-88%), and in vitro release, are investigated. The LO-loaded nanoparticles show non-toxicity to fibroblast cells, with an IC50 value higher than 2000 µg/mL. The products from this process have high potential as drug encapsulation templates in biomedical applications.
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5
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Kowalczyk P, Wojasiński M, Jaroszewicz J, Kopeć K, Ciach T. Controlled formation of highly porous polylactic acid‑calcium phosphate granules with defined structure. BIOMATERIALS ADVANCES 2022; 144:213195. [PMID: 36434927 DOI: 10.1016/j.bioadv.2022.213195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 10/08/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
Synthetic bone repair materials are becoming increasingly popular in tissue engineering as a replacement for autografts and human/animal-based bone grafts. The biomedical application requires precise control over the material composition and structure, as well as over the size of granulate used for filling the bone defects, as the pore size and interconnectivity affect the regeneration process. This paper proposes a process of alloplastic and biodegradable polylactic acid/β-tricalcium phosphate granulates preparation and its parameters described. Using solvent-induced phase separation technique, porous spheres have been obtained in various sizes and morphologies. The design of the experiment's approach generated an experimental plan for further statistical modeling using the resulting data. The statistical modeling approach to the data from conducting a designed set of experiments allowed analysis of the influence of process parameters on the properties of the resulting granules. We confirmed that the content of β-tricalcium phosphate plays the most significant role in the size distribution of prepared granulate. The shape of the particles becomes less spherical with higher phosphate concentration in the emulsion. The proposed technique allows preparing porous granulates in the 0.2-1.8 mm diameter range, where granules' mean diameter and sphericity are tunable with polymer and phosphate concentrations. The granulate created a potentially implantable scaffold for resected bone regeneration, as cytotoxicity tests assured the material is non-cytotoxic in vitro, and human mesenchymal stem cells have been cultured on the surface of granulates. Results from cell cultures seeded on the Resomer LR 706S granulates were the most promising.
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Affiliation(s)
- Piotr Kowalczyk
- Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland.
| | - Michał Wojasiński
- Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Jakub Jaroszewicz
- Faculty of Material Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warsaw, Poland
| | - Kamil Kopeć
- Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Tomasz Ciach
- Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
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6
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Maksoud FJ, Velázquez de la Paz MF, Hann AJ, Thanarak J, Reilly GC, Claeyssens F, Green NH, Zhang YS. Porous biomaterials for tissue engineering: a review. J Mater Chem B 2022; 10:8111-8165. [PMID: 36205119 DOI: 10.1039/d1tb02628c] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The field of biomaterials has grown rapidly over the past decades. Within this field, porous biomaterials have played a remarkable role in: (i) enabling the manufacture of complex three-dimensional structures; (ii) recreating mechanical properties close to those of the host tissues; (iii) facilitating interconnected structures for the transport of macromolecules and cells; and (iv) behaving as biocompatible inserts, tailored to either interact or not with the host body. This review outlines a brief history of the development of biomaterials, before discussing current materials proposed for use as porous biomaterials and exploring the state-of-the-art in their manufacture. The wide clinical applications of these materials are extensively discussed, drawing on specific examples of how the porous features of such biomaterials impact their behaviours, as well as the advantages and challenges faced, for each class of the materials.
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Affiliation(s)
- Fouad Junior Maksoud
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA.
| | - María Fernanda Velázquez de la Paz
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK.
| | - Alice J Hann
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK.
| | - Jeerawan Thanarak
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK.
| | - Gwendolen C Reilly
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK. .,INSIGNEO Institute for in silico Medicine, University of Sheffield, S3 7HQ, UK
| | - Frederik Claeyssens
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK. .,INSIGNEO Institute for in silico Medicine, University of Sheffield, S3 7HQ, UK
| | - Nicola H Green
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK. .,INSIGNEO Institute for in silico Medicine, University of Sheffield, S3 7HQ, UK
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA.
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7
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Tümer EH, Erbil HY, Akdoǧan N. Wetting of Superhydrophobic Polylactic Acid Micropillared Patterns. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:10052-10064. [PMID: 35930742 PMCID: PMC9387099 DOI: 10.1021/acs.langmuir.2c01708] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/27/2022] [Indexed: 06/10/2023]
Abstract
Superhydrophobic (SH) polylactic acid (PLA) surfaces were previously produced by various methods and used especially in biomedical applications and oil/water separation processes after 2008. However, the wettability of SH-PLA patterns containing micropillars has not been investigated before. In this study, PLA patterns having regular microstructured pillars with 12 different pillar diameters and pillar-to-pillar distances were prepared by hot pressing pre-flattened PLA sheets onto preformed polydimethylsiloxane (PDMS) soft molds having micro-sized pits. PDMS templates were previously prepared by photolithography using SU-8 molds. Apparent, advancing, and receding water contact angle measurements were carried out on the PLA patterns containing micropillars, and the morphology of the patterns was examined by optical and SEM microscopy. The largest contact angle obtained without the surface modification of the pure PLA pattern was 139°. Then, PLA micropatterns were hydrophobized using three types of silanes via chemical vapor deposition method, and SH-PLA patterns were obtained having θs of up to 167°. It was found that the highest θ values could be obtained when PLA pattern samples were coated with a silane containing a fluorine atom in its chemical structure. Washing and service life stability tests were also performed on the coated pattern samples and all of the silane coatings on the PLA patterns were found to be resistant over a 6 month period.
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Affiliation(s)
- Eda Hazal Tümer
- Department
of Chemical Engineering, Gebze Technical
University, Gebze, Kocaeli 41400, Türkiye
| | - H. Yildirim Erbil
- Department
of Chemical Engineering, Gebze Technical
University, Gebze, Kocaeli 41400, Türkiye
| | - Numan Akdoǧan
- Department
of Physics, Gebze Technical University, Gebze, Kocaeli 41400, Türkiye
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8
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Surface Modification of Poly(lactic acid) Film via Cold Plasma Assisted Grafting of Fumaric and Ascorbic Acid. Polymers (Basel) 2021; 13:polym13213717. [PMID: 34771274 PMCID: PMC8588400 DOI: 10.3390/polym13213717] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 10/24/2021] [Accepted: 10/25/2021] [Indexed: 11/29/2022] Open
Abstract
Plant-based materials have found their application in the packaging with a yearly growing production rate. These naturally biodegradable polymers are obtained from renewable and sustainable natural resources with reduced environmental impact and affordable cost. These materials have found their utilization in fully-renewable plant-based packaging products, such as Tetra Pak®-like containers, by replacing commonly-used polyethylene as the polymer component. Poly(lactic acid) (PLA) is one of the representative plant-based polymers because of its eco-friendliness and excellent chemical and mechanical properties. In this work, a PLA surface was modified by various food additives, namely ascorbic acid (ASA) and fumaric acid (FA), using plasma-initiated grafting reactions in order to improve the surface and adhesion properties of PLA. Various analytical and microscopic techniques were employed to prove the grafting process. Moreover, the improved adhesion of the modified PLA foil to aluminum (Al) foil in a laminate configuration was proven by peel resistance measurements. The peel resistance of modified PLA increased by 74% and 184% for samples modified by ASA and FA, respectively, compared with untreated PLA.
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9
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R R, Philip E, Madhavan A, Sindhu R, Pugazhendhi A, Binod P, Sirohi R, Awasthi MK, Tarafdar A, Pandey A. Advanced biomaterials for sustainable applications in the food industry: Updates and challenges. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 283:117071. [PMID: 33866219 DOI: 10.1016/j.envpol.2021.117071] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/12/2021] [Accepted: 03/31/2021] [Indexed: 06/12/2023]
Abstract
Maintaining the safety and quality of food are major concerns while developing biomaterial based food packaging. It offers a longer shelf-life as well as protection and quality control to the food based on international standards. Nano-biotechnology contributes to a far extent to make advanced packaging by developing multifunctional biomaterials for potential applications providing smarter materials to consumers. Applications of nano-biocomposites may thus help to deliver enhanced barrier, mechanical strength, antimicrobial and antioxidant properties to novel food packaging materials. Starch derived bioplastics, polylactic acid and polyhydroxybutyrate are examples of active bioplastics currently in the food packaging sector. This review discusses the various types of biomaterials that could be used to improve future smarter food packaging, as well as biomaterials' potential applications as food stabilizers, pathogen control agents, sensors, and edible packaging materials. The regulatory concerns related to the use of biomaterials in food packaging and commercially available biomaterials in different fields are also discussed. Development of novel biomaterials for different food packaging applications can therefore guarantee active food packaging in future.
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Affiliation(s)
- Reshmy R
- Post Graduate and Research Department of Chemistry, Bishop Moore College, Mavelikara, 690 110, Kerala, India
| | - Eapen Philip
- Post Graduate and Research Department of Chemistry, Bishop Moore College, Mavelikara, 690 110, Kerala, India
| | - Aravind Madhavan
- Rajiv Gandhi Center for Biotechnology, Jagathy, Thiruvananthapuram, 695 014, Kerala, India
| | - Raveendran Sindhu
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum, 695 019, Kerala, India
| | - Arivalagan Pugazhendhi
- Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum, 695 019, Kerala, India
| | - Ranjna Sirohi
- Department of Chemical & Biological Engineering, Korea University, Seoul, 136713, 11, Republic of Korea
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, North West A & F University, Yangling, Shaanxi, 712 100, China
| | - Ayon Tarafdar
- Division of Livestock Production and Management, ICAR - Indian Veterinary Research Institute, Izatnagar, Bareilly, 243 122, Uttar Pradesh, India
| | - Ashok Pandey
- Centre for Innovation and Translational Research, CSIR- Indian Institute for Toxicology Research, Lucknow, 226 001, India; Centre for Energy and Environmental Sustainability, Lucknow, 226 029, Uttar Pradesh, India.
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10
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Delyanee M, Solouk A, Akbari S, Daliri Joupari M. Engineered hemostatic bionanocomposite of poly(lactic acid) electrospun mat and amino‐modified halloysite for potential application in wound healing. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5399] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Mahsa Delyanee
- Biomedical Engineering Department Amirkabir University of Technology Tehran Iran
| | - Atefeh Solouk
- Biomedical Engineering Department Amirkabir University of Technology Tehran Iran
| | - Somaye Akbari
- Textile Engineering Department Amirkabir University of Technology Tehran Iran
| | - Morteza Daliri Joupari
- Department of Animal and Marine Biotechnology National Institute of Genetic Engineering and Biotechnology Tehran Iran
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11
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The degradation investigation of biodegradable PLA/PBAT blend: Thermal stability, mechanical properties and PALS analysis. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2020.109239] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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12
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Chen W, Nichols L, Brinkley F, Bohna K, Tian W, Priddy MW, Priddy LB. Alkali treatment facilitates functional nano-hydroxyapatite coating of 3D printed polylactic acid scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 120:111686. [PMID: 33545848 DOI: 10.1016/j.msec.2020.111686] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 08/26/2020] [Accepted: 10/22/2020] [Indexed: 01/08/2023]
Abstract
Autografting is currently the gold standard for treatment of bone defects, but has shown disadvantages in the limited volume of and donor site morbidity associated with harvested bone. Customized bone scaffolds that mimic the mechanical and biological properties of native bone are needed to augment the currently limited bone regeneration strategies. To achieve this goal, a repeated cross-hatch structure with uniform cubic pores was designed and 3D printed using polylactic acid (PLA) via fused deposition modeling (FDM). PLA surfaces were modified by wet chemical (alkali) treatment for either 1 h (1hAT) or 6 h (6hAT), followed by coating with nano-hydroxyapatite (nHA). Our hypotheses were that: (i) 6-hour (but not 1-hour) alkali treatment would enhance nHA coating, (ii) the nHA coating on the 6-hour alkali-treated surface would increase hydrophilicity and cell attachment/proliferation, and (iii) stiffness, but not effective Young's modulus, would be reduced by 6-hour alkali treatment. The effects of AT and nHA coating on scaffold morphology was observed by scanning electron microscopy and quantified using a custom MATLAB script. Chemical composition and hydrophilicity were evaluated via energy dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy, and water contact angle analyses, respectively. Mechanical testing and in vitro cell culture were further employed to analyze compressive properties, and cell attachment and proliferation, respectively. As expected, 6hAT led to reduced strut width and stiffness, while improving the nHA coating and hydrophilicity. Interestingly, PLA/6hAT but not PLA/6hAT/nHA demonstrated a reduction in effective modulus compared to PLA and PLA/nHA scaffolds. From in vitro experiments, the combined PLA/6hAT/nHA modification resulted in the greatest extent of cell attachment but not proliferation. These results collectively demonstrate that the PLA/6hAT/nHA scaffold exhibits properties that may prove beneficial for cancellous bone regeneration.
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Affiliation(s)
- Weitong Chen
- Department of Agricultural and Biological Engineering, Mississippi State University, 130 Creelman Street, Mississippi State, MS 39762, United States of America.
| | - Luke Nichols
- Department of Agricultural and Biological Engineering, Mississippi State University, 130 Creelman Street, Mississippi State, MS 39762, United States of America.
| | - Frank Brinkley
- Department of Mechanical Engineering, Mississippi State University, 479-1 Hardy Road, Mississippi State, MS 39762, United States of America.
| | - Kelson Bohna
- Department of Industrial and Systems Engineering, Mississippi State University, 479-2 Hardy Road, Mississippi State, MS 39762, United States of America
| | - Wenmeng Tian
- Department of Industrial and Systems Engineering, Mississippi State University, 479-2 Hardy Road, Mississippi State, MS 39762, United States of America.
| | - Matthew W Priddy
- Department of Mechanical Engineering, Mississippi State University, 479-1 Hardy Road, Mississippi State, MS 39762, United States of America.
| | - Lauren B Priddy
- Department of Agricultural and Biological Engineering, Mississippi State University, 130 Creelman Street, Mississippi State, MS 39762, United States of America.
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Puthumana M, Santhana Gopala Krishnan P, Nayak SK. Chemical modifications of PLA through copolymerization. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2020. [DOI: 10.1080/1023666x.2020.1830650] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Manju Puthumana
- Department of Plastics Technology, Central Institute of Plastics Engineering and Technology, Institute of Plastics Technology, Chennai, India
| | - P. Santhana Gopala Krishnan
- Department of Plastics Technology, Central Institute of Plastics Engineering and Technology, Institute of Plastics Technology, Chennai, India
| | - Sanjay Kumar Nayak
- Department of Plastics Technology, Central Institute of Plastics Engineering and Technology, Institute of Plastics Technology, Chennai, India
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14
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Jędrzkiewicz D, Kowalczyk S, Plichta A, Ejfler J. Lastingly Colored Polylactide Synthesized by Dye-Initiated Polymerization. Polymers (Basel) 2020; 12:E1980. [PMID: 32878233 PMCID: PMC7563163 DOI: 10.3390/polym12091980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 11/16/2022] Open
Abstract
An efficient synthesis strategy of a well-defined polylactide-dye conjugate in a controlled fashion is presented. The introduction of coloring species as end groups of polylactide (PLA) has been performed by using new homoleptic aminophenolate magnesium or zinc coordination compounds. The molecular structure of metal complexes has been determined in solution by NMR spectroscopy, and in the solid state by X-ray analysis. Lastingly colored polymers were obtained with 2-[4-(Nitrophenylazo)-N-ethylphenylamino]ethanol (Disperse Red 1) and 2-[4-(2-Chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol (Disperse Red 13) at very high lactide conversions, based on MALDI-ToF measurement, and the macromolecules were nearly fully chain end dye-functionalized. Based on 1H NMR, the DPn of conjugates was in the range of 10-300, which was consistent with the reaction setup. Various methods of gel-permeation chromatography (GPC) analysis were applied, and they demonstrated that the number-average molar mass (Mn) values (polystyrene (PS) standards) were a bit higher than calculated, the molar mass distribution index (ƉM) values were moderate to high, the TDA (triple detection array) system was inappropriate for analysis, measurements with PDA (photo diode array) detection at 470 nm gave nearly the same molar mass distributions such as the refractometer, and the relative absorbance of conjugates at 470 nm increased linearly versus (DPn)-1. The presented approach connects the gap between the current strategy of obtaining colored polymer fibers and the design of tailor-made initiators with eco polyesters designed for the targeted applications.
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Affiliation(s)
- Dawid Jędrzkiewicz
- Faculty of Chemistry, University of Wroclaw, 14 Joliot-Curie Str., 50-383 Wrocław, Poland;
| | - Sebastian Kowalczyk
- Faculty of Chemistry, Warsaw University of Technology, 3 Noakowskiego Str., 00-664 Warsaw, Poland; (S.K.); (A.P.)
| | - Andrzej Plichta
- Faculty of Chemistry, Warsaw University of Technology, 3 Noakowskiego Str., 00-664 Warsaw, Poland; (S.K.); (A.P.)
| | - Jolanta Ejfler
- Faculty of Chemistry, University of Wroclaw, 14 Joliot-Curie Str., 50-383 Wrocław, Poland;
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15
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Functional Polylactide Blend Films for Controlling Mesenchymal Stem Cell Behaviour. Polymers (Basel) 2020; 12:polym12091969. [PMID: 32872657 PMCID: PMC7563229 DOI: 10.3390/polym12091969] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 12/16/2022] Open
Abstract
Polymer blending is a suitable physical modification method to create novel properties of different polymers. Blending polylactic acid (PLA) and polyethylene glycol (PEG) produces materials with a wide range of properties. This study was the first to investigate the effect of different isomeric forms of PLA and PEG with terminal amino groups to obtain biocompatible films for human mesenchymal stem cell cultivation. It has been shown by scanning electron microscopy that the surface topology changes to the greatest extent when using films obtained on the basis of poly(d,l-lactide) and PEG with high molecular weights (15,000 g/mol). In order to obtain thin films and rapid evaporation of the solvent, PEG is mixed with PLA and does not form a separate phase and is not further washed out during the incubation in water. The presence of PEG with terminal hydroxyl and amino groups in blend films after incubation in water was proven using Fourier transform infrared (FTIR) spectroscopy. Results of fluorescence microscopy demonstrated that blend films formed on PLA and polyethylene glycol diamine (PEG-NH2) are more suitable for cell spreading and focal contact formation compared to cells cultured on the surface of pure PLA films or films made from PLA and PEG.
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16
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Ozaltin K, Vargun E, Di Martino A, Capakova Z, Lehocky M, Humpolicek P, Kazantseva N, Saha P. Cell response to PLA scaffolds functionalized with various seaweed polysaccharides. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1798443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Kadir Ozaltin
- Centre of Polymer Systems, Tomas Bata University in Zlín, Zlin, Czech Republic
| | - Elif Vargun
- Centre of Polymer Systems, Tomas Bata University in Zlín, Zlin, Czech Republic
- Faculty of Science, Chemistry Department, Mugla Sitki Kocman University, Mugla, Turkey
| | - Antonio Di Martino
- Centre of Polymer Systems, Tomas Bata University in Zlín, Zlin, Czech Republic
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk, Russian Federation
| | - Zdenka Capakova
- Centre of Polymer Systems, Tomas Bata University in Zlín, Zlin, Czech Republic
| | - Marian Lehocky
- Centre of Polymer Systems, Tomas Bata University in Zlín, Zlin, Czech Republic
| | - Petr Humpolicek
- Centre of Polymer Systems, Tomas Bata University in Zlín, Zlin, Czech Republic
| | - Natalia Kazantseva
- Centre of Polymer Systems, Tomas Bata University in Zlín, Zlin, Czech Republic
| | - Petr Saha
- Centre of Polymer Systems, Tomas Bata University in Zlín, Zlin, Czech Republic
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17
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Gazzotti S, Ortenzi MA, Farina H, Disimino M, Silvani A. Carvacrol- and Cardanol-Containing 1,3-Dioxolan-4-ones as Comonomers for the Synthesis of Functional Polylactide-Based Materials. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01537] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stefano Gazzotti
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
- CRC Materiali Polimerici “LaMPo”, Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Marco Aldo Ortenzi
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
- CRC Materiali Polimerici “LaMPo”, Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Hermes Farina
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
- CRC Materiali Polimerici “LaMPo”, Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Mariapina Disimino
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
- CRC Materiali Polimerici “LaMPo”, Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Alessandra Silvani
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
- CRC Materiali Polimerici “LaMPo”, Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
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18
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Modification of PLA-Based Films by Grafting or Coating. J Funct Biomater 2020; 11:jfb11020030. [PMID: 32392750 PMCID: PMC7353487 DOI: 10.3390/jfb11020030] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 04/08/2020] [Accepted: 04/24/2020] [Indexed: 11/16/2022] Open
Abstract
Recently, the demand for the use of natural polymers in the cosmetic, biomedical, and sanitary sectors has been increasing. In order to meet specific functional properties of the products, usually, the incorporation of the active component is required. One of the main problems is enabling compatibility between hydrophobic and hydrophilic surfaces. Therefore, surface modification is necessary. Poly(lactide) (PLA) is a natural polymer that has attracted a lot ofattention in recent years. It is bio-based, can be produced from carbohydrate sources like corn, and it is biodegradable. The main goal of this work was the functionalization of PLA, inserting antiseptic and anti-inflammatory nanostructured systems based on chitin nanofibrils-nanolignin complexes ready to be used in the biomedical, cosmetics, and sanitary sectors. The specific challenge of this investigation was to increase the interaction between the hydrophobic PLA matrix with hydrophilic chitin-lignin nanoparticle complexes. First, chemical modification via the "grafting from" method using lactide oligomers was performed. Then, active coatings with modified and unmodified chitin-lignin nanoparticle complexes were prepared and applied on extruded PLA-based sheets. The chemical, thermal, and mechanical characterization of prepared samples was carried out and the obtained results were discussed.
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Mohd Sabee MMS, Kamalaldin NA, Yahaya BH, Abdul Hamid ZA. Osteoblasts migration, attachment and human bone marrow-mesenchymal stem cells osteogenic differentiation towards surface engineered and growth factors conjugated poly(lactic acid) microspheres. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:45. [PMID: 32367409 DOI: 10.1007/s10856-020-06380-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
Recently, surface engineered biomaterials through surface modification are extensively investigated due to its potential to enhance cellular homing and migration which contributes to a successful drug delivery process. This study is focused on osteoblasts response towards surface engineered using a simple sodium hydroxide (NaOH) hydrolysis and growth factors conjugated poly(lactic acid) (PLA) microspheres. In this study, evaluation of the relationship of NaOH concentration with the molecular weight changes and surface morphology of PLA microspheres specifically wall thickness and porosity prior to in vitro studies was investigated. NaOH hydrolysis of 0.1 M, 0.3 M and 0.5 M were done to introduce hydrophilicity on the PLA prior to conjugation with basic fibroblast growth factor (bFGF) and epidermal growth factor (EGF). Morphology changes showed that higher concentration of NaOH could accelerate the hydrolysis process as the highest wall thickness was observed at 0.5 M NaOH with ~3.52 µm. All surface modified and growth factors conjugated PLA microspheres wells enhanced the migration of the cells during wound healing process as wound closure was 100% after 3 days of treatment. Increase in hydrophilicity of the surface engineered and growth factors conjugated PLA microspheres provides favorable surface for cellular attachment of osteoblast, which was reflected by positive DAPI staining of the cells' nucleus. Surface modified and growth factors conjugated PLA microspheres were also able to enhance the capability of the PLA in facilitating the differentiation process of mesenchymal stem cells (MSCs) into osteogenic lineage since only positive stain was observed on surface engineered and growth factors conjugated PLA microspheres. These results indicated that the surface engineered and growth factors conjugated PLA microspheres were non-toxic for biological environments and the improved hydrophilicity made them a potential candidate as a drug delivery vehicle as the cells can adhere, attach and proliferate inside it.
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Affiliation(s)
- M M S Mohd Sabee
- Biomaterials Niche Group, School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300, Nibong Tebal, Pulau Pinang, Malaysia
| | - N A Kamalaldin
- Regenerative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200, Kepala Batas, Pulau Pinang, Malaysia
| | - B H Yahaya
- Regenerative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200, Kepala Batas, Pulau Pinang, Malaysia
| | - Z A Abdul Hamid
- Biomaterials Niche Group, School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300, Nibong Tebal, Pulau Pinang, Malaysia.
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20
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Durán IR, Vanslambrouck S, Chevallier P, Hoesli CA, Laroche G. Atmospheric pressure cold plasma versus wet-chemical surface treatments for carboxyl functionalization of polylactic acid: A first step toward covalent immobilization of bioactive molecules. Colloids Surf B Biointerfaces 2020; 189:110847. [PMID: 32086024 DOI: 10.1016/j.colsurfb.2020.110847] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 01/07/2020] [Accepted: 02/04/2020] [Indexed: 12/12/2022]
Abstract
The use of polylactic acid (PLA) has attracted growing interest, particularly in recent years, for biomedical applications because of its mechanical properties, biocompatibility, and biodegradability. Despite this, features such as surface hydrophobicity and the absence of suitable functional groups for covalent immobilization of bioactive molecules, make it challenging to endow PLA-based medical devices with additional features and thus broaden their range of applicability. In the present study, we demonstrate the suitability of atmospheric pressure dielectric barrier discharges operating in the Townsend regime as a promising alternative to other surface treatments, such as diazonium and alkali hydrolytic treatments, for carboxyl functionalization of PLA. Chemical changes in PLA surfaces are evaluated by contact angle measurements and by X-ray photoelectron spectroscopy while physical changes are investigated by scanning electron microscopy and atomic force microscopy. The amount of carboxyl groups generated on PLA surfaces is assessed by toluidine blue O assay and substantiated by grafting, through carboxyl groups, a fluorescent probe containing amino functionalities. All of the surface treatments have proven to be very effective in generating carboxylic groups on the PLA surface. Nevertheless, plasma treatment is shown to not degrade the PLA surface, in sharp contrast with diazonium and alkali hydrolytic treatments.
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Affiliation(s)
- Iván Rodríguez Durán
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de génie des mines, de la métallurgie et des matériaux, Université Laval, 1065, avenue de la Médecine, Québec City, G1V 0A6, Canada; Axe Médecine Régénératrice, Centre de recherche du CHU de Québec, Hôpital St. François d'Assise, 10, rue de l'Espinay, Québec city, G1L 3L5, Canada
| | - Stéphanie Vanslambrouck
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de génie des mines, de la métallurgie et des matériaux, Université Laval, 1065, avenue de la Médecine, Québec City, G1V 0A6, Canada; Axe Médecine Régénératrice, Centre de recherche du CHU de Québec, Hôpital St. François d'Assise, 10, rue de l'Espinay, Québec city, G1L 3L5, Canada
| | - Pascale Chevallier
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de génie des mines, de la métallurgie et des matériaux, Université Laval, 1065, avenue de la Médecine, Québec City, G1V 0A6, Canada; Axe Médecine Régénératrice, Centre de recherche du CHU de Québec, Hôpital St. François d'Assise, 10, rue de l'Espinay, Québec city, G1L 3L5, Canada
| | - Corinne A Hoesli
- Stem Cell Bioprocessing Laboratory, Department of Chemical Engineering, McGill University, Wong Building, 3610 University Street, Montreal, H3A 0C5, Canada
| | - Gaétan Laroche
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de génie des mines, de la métallurgie et des matériaux, Université Laval, 1065, avenue de la Médecine, Québec City, G1V 0A6, Canada; Axe Médecine Régénératrice, Centre de recherche du CHU de Québec, Hôpital St. François d'Assise, 10, rue de l'Espinay, Québec city, G1L 3L5, Canada.
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21
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Richbourg NR, Peppas NA, Sikavitsas VI. Tuning the biomimetic behavior of scaffolds for regenerative medicine through surface modifications. J Tissue Eng Regen Med 2019; 13:1275-1293. [PMID: 30946537 PMCID: PMC6715496 DOI: 10.1002/term.2859] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 01/22/2019] [Accepted: 01/29/2019] [Indexed: 11/11/2022]
Abstract
Tissue engineering and regenerative medicine rely extensively on biomaterial scaffolds to support cell adhesion, proliferation, and differentiation physically and chemically in vitro and in vivo. Changes to the surface characteristics of the scaffolds have the greatest impact on cell response. Here, we discuss five dominant surface modification approaches used to biomimetically improve the most common scaffolds for tissue engineering, those based on aliphatic polyesters. Scaffolds of aliphatic polyesters such as poly(l-lactic acid), poly(l-lactic-co-glycolic acid), and poly(ε-caprolactone) are often used in tissue engineering because they provide desirable, tunable properties such as ease of manufacturing, good mechanical properties, and nontoxic degradation products. However, cell-surface interactions necessary for tissue engineering are limited on these materials by their smooth postfabrication surfaces, hydrophobicity, and lack of recognizable biochemical binding sites. The surface modification techniques that have been developed for synthetic polymer scaffolds reduce initial barriers to cell adhesion, proliferation, and differentiation. Topographical modification, protein adsorption, mineral coating, functional group incorporation, and biomacromolecule immobilization each contribute through varying mechanisms to improving cell interactions with aliphatic polyester scaffolds. Furthermore, rational combination of methods from these categories can provide nuanced, specific environments for targeted tissue development.
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Affiliation(s)
- Nathan R Richbourg
- School of Chemical, Biological, and Materials Engineering, The University of Oklahoma, Norman, OK, USA
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Nicholas A Peppas
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Vassilios I Sikavitsas
- School of Chemical, Biological, and Materials Engineering, The University of Oklahoma, Norman, OK, USA
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22
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Kobielarz M, Gazińska M, Tomanik M, Stępak B, Szustakiewicz K, Filipiak J, Antończak A, Pezowicz C. Physicochemical and mechanical properties of CO2 laser-modified biodegradable polymers for medical applications. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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23
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Kowalczyk P, Trzaskowska P, Łojszczyk I, Podgórski R, Ciach T. Production of 3D printed polylactide scaffolds with surface grafted hydrogel coatings. Colloids Surf B Biointerfaces 2019; 179:136-142. [DOI: 10.1016/j.colsurfb.2019.03.069] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/22/2019] [Accepted: 03/30/2019] [Indexed: 10/27/2022]
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24
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Bu Y, Ma J, Bei J, Wang S. Surface Modification of Aliphatic Polyester to Enhance Biocompatibility. Front Bioeng Biotechnol 2019; 7:98. [PMID: 31131273 PMCID: PMC6509149 DOI: 10.3389/fbioe.2019.00098] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/16/2019] [Indexed: 11/16/2022] Open
Abstract
Aliphatic polyester is a kind of biodegradable implantable polymers, which shows promise as scaffolds in tissue engineering, drug carrier, medical device, and so on. To further improve its biocompatibility and cell affinity, many techniques have been used to modify the surface of the polyester. In the present paper, the key factors of influencing biocompatibility of aliphatic polyester were illuminated, and the different surface modification methods such as physical, chemical, and plasma processing methods were also demonstrated. The advantages and disadvantages of each method were also discussed with the hope that this review can serve as a resource for selection of surface modification of aliphatic products.
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Affiliation(s)
- Yazhong Bu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Junxuan Ma
- Orthopedic Research Institute, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China
| | - Jianzhong Bei
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Shenguo Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
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25
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Abbasian M, Massoumi B, Mohammad-Rezaei R, Samadian H, Jaymand M. Scaffolding polymeric biomaterials: Are naturally occurring biological macromolecules more appropriate for tissue engineering? Int J Biol Macromol 2019; 134:673-694. [PMID: 31054302 DOI: 10.1016/j.ijbiomac.2019.04.197] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/15/2019] [Accepted: 04/30/2019] [Indexed: 12/14/2022]
Abstract
Nowadays, tissue and organ failures resulted from injury, aging accounts, diseases or other type of damages is one of the most important health problems with an increasing incidence worldwide. Current treatments have limitations including, low graft efficiency, shortage of donor organs, as well as immunological problems. In this context, tissue engineering (TE) was introduced as a novel and versatile approach for restoring tissue/organ function using living cells, scaffold and bioactive (macro-)molecules. Among these, scaffold as a three-dimensional (3D) support material, provide physical and chemical cues for seeding cells and has an essential role in cell missions. Among the wide verity of scaffolding materials, natural or synthetic biopolymers are the most commonly biomaterials mainly due to their unique physicochemical and biological features. In this context, naturally occurring biological macromolecules are particular of interest owing to their low immunogenicity, excellent biocompatibility and cytocompatibility, as well as antigenicity that qualified them as popular choices for scaffolding applications. In this review, we highlighted the potentials of natural and synthetic polymers as scaffolding materials. The properties, advantages, and disadvantages of both polymer types as well as the current status, challenges, and recent progresses regarding the application of them as scaffolding biomaterials are also discussed.
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Affiliation(s)
- Mojtaba Abbasian
- Department of Chemistry, Payame Noor University, P.O. Box: 19395-3697, Tehran, Iran
| | - Bakhshali Massoumi
- Department of Chemistry, Payame Noor University, P.O. Box: 19395-3697, Tehran, Iran
| | - Rahim Mohammad-Rezaei
- Analytical Chemistry Research Laboratory, Faculty of Sciences, Azarbaijan Shahid Madani University, P.O. Box: 53714-161, Tabriz, Iran
| | - Hadi Samadian
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mehdi Jaymand
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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26
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Surface Modification of 3D Printed PLA Objects by Fused Deposition Modeling: A Review. COLLOIDS AND INTERFACES 2019. [DOI: 10.3390/colloids3020043] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Polylactic acid (PLA) filaments are very popular as a thermoplastic source used in the 3D printing field by the “Fused Deposition Modeling” method in the last decade. The PLA market is expected to reach 5.2 billion US dollars in 2020 for all of its industrial uses. On the other hand, 3D printing is an expanding technology that has a large economic potential in many industries where PLA is one of the main choices as the source polymer due to its ease of printing, environmentally friendly nature, glossiness and multicolor appearance properties. In this review, we first reported the chemical structure, production methods, general properties, and present market of the PLA. Then, the chemical modification possibilities of PLA and its use in 3D printers, present drawbacks, and the surface modification methods of PLA polymers in many different fields were discussed. Specifically, the 3D printing method where the PLA filaments are used in the extrusion-based 3D printing technologies is reviewed in this article. Many methods have been proposed for the permanent surface modifications of the PLA where covalent attachments were formed such as alkaline surface hydrolysis, atom transfer polymerization, photografting by UV light, plasma treatment, and chemical reactions after plasma treatment. Some of these methods can be applied for surface modifications of PLA objects obtained by 3D printing for better performance in biomedical uses and other fields. Some recent publications reporting the surface modification of 3D printed PLA objects were also discussed.
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27
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Rega R, Gennari O, Mecozzi L, Pagliarulo V, Bramanti A, Ferraro P, Grilli S. Maskless Arrayed Nanofiber Mats by Bipolar Pyroelectrospinning. ACS APPLIED MATERIALS & INTERFACES 2019; 11:3382-3387. [PMID: 30609347 DOI: 10.1021/acsami.8b12513] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The numerous advantages of micro- and nanostructures produced by electrospinning (ES) have stimulated enormous interest in this technology with potential application in several fields. However, ES still has some limitations in controlling the geometrical arrangement of the fiber mats so that expensive and time-consuming technologies are usually employed for producing ordered geometries. Here we present a technique that we call "bipolar pyroelectrospinning" (b-PES) for generating ordered arrays of fiber mats in a direct manner by using the bipolar pyroelectric field produced by a periodically poled lithium niobate crystal (PPLN). The b-PES is free from expensive electrodes, nozzles, and masks because it makes use simply of the structured pyroelectric field produced by the PPLN crystal used as collector. The results show clearly the reliability of the technique in producing a wide variety of arrayed fiber mats that could find application in bioengineering or many other fields. Preliminary results of live cells patterning under controlled geometrical constraints is also reported and discussed in order to show potential exploitation as a scaffold in tissue engineering.
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Affiliation(s)
- Romina Rega
- National Research Council (CNR) , Institute of Applied Sciences & Intelligent Systems (ISASI) 'E. Caianiello' , Via Campi Flegrei 34 , 80078 Pozzuoli ( NA ), Italy
| | - Oriella Gennari
- National Research Council (CNR) , Institute of Applied Sciences & Intelligent Systems (ISASI) 'E. Caianiello' , Via Campi Flegrei 34 , 80078 Pozzuoli ( NA ), Italy
| | - Laura Mecozzi
- National Research Council (CNR) , Institute of Applied Sciences & Intelligent Systems (ISASI) 'E. Caianiello' , Via Campi Flegrei 34 , 80078 Pozzuoli ( NA ), Italy
| | - Vito Pagliarulo
- National Research Council (CNR) , Institute of Applied Sciences & Intelligent Systems (ISASI) 'E. Caianiello' , Via Campi Flegrei 34 , 80078 Pozzuoli ( NA ), Italy
| | - Alessia Bramanti
- National Research Council (CNR) , Institute of Applied Sciences & Intelligent Systems (ISASI) 'E. Caianiello' , Via Campi Flegrei 34 , 80078 Pozzuoli ( NA ), Italy
- IRCCS Centro Neurolesi "Bonino-Pulejo" , Contrada Casazza SS113 , 98124 Messina , Italy
| | - Pietro Ferraro
- National Research Council (CNR) , Institute of Applied Sciences & Intelligent Systems (ISASI) 'E. Caianiello' , Via Campi Flegrei 34 , 80078 Pozzuoli ( NA ), Italy
| | - Simonetta Grilli
- National Research Council (CNR) , Institute of Applied Sciences & Intelligent Systems (ISASI) 'E. Caianiello' , Via Campi Flegrei 34 , 80078 Pozzuoli ( NA ), Italy
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28
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Jiang J, Xu X, Stringer J. Effect of Extrusion Temperature on Printable Threshold Overhang in Additive Manufacturing. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.procir.2019.04.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Paolini A, Leoni L, Giannicchi I, Abbaszadeh Z, D'Oria V, Mura F, Dalla Cort A, Masotti A. MicroRNAs delivery into human cells grown on 3D-printed PLA scaffolds coated with a novel fluorescent PAMAM dendrimer for biomedical applications. Sci Rep 2018; 8:13888. [PMID: 30224665 PMCID: PMC6141561 DOI: 10.1038/s41598-018-32258-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 09/03/2018] [Indexed: 11/25/2022] Open
Abstract
Many advanced synthetic, natural, degradable or non-degradable materials have been employed to create scaffolds for cell culture for biomedical or tissue engineering applications. One of the most versatile material is poly-lactide (PLA), commonly used as 3D printing filament. Manufacturing of multifunctional scaffolds with improved cell growth proliferation and able to deliver oligonucleotides represents an innovative strategy for controlled and localized gene modulation that hold great promise and could increase the number of applications in biomedicine. Here we report for the first time the synthesis of a novel Rhodamine derivative of a poly-amidoamine dendrimer (G = 5) able to transfect cells and to be monitored by confocal microscopy that we also employed to coat a 3D-printed PLA scaffold. The coating do not modify the oligonucleotide binding ability, toxicity or transfection properties of the scaffold that is able to increase cell proliferation and deliver miRNA mimics (i.e., pre-mir-503) into human cells. Although further experiments are required to optimize the dendrimer/miRNA ratio and improve transfection efficiency, we demonstrated the effectiveness of this promising and innovative 3D-printed transfection system to transfer miRNAs into human cells for future biomedical applications.
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Affiliation(s)
- Alessandro Paolini
- Bambino Gesù Children's Hospital-IRCCS, Research Laboratories, V.le di San Paolo 15, 00146, Rome, Italy.
| | - Luca Leoni
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy
| | - Ilaria Giannicchi
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy
| | - Zeinab Abbaszadeh
- Bambino Gesù Children's Hospital-IRCCS, Research Laboratories, V.le di San Paolo 15, 00146, Rome, Italy
| | - Valentina D'Oria
- Bambino Gesù Children's Hospital-IRCCS, Research Laboratories, V.le di San Paolo 15, 00146, Rome, Italy
| | - Francesco Mura
- Center for the Nanotechnology applied to the Engineering of La Sapienza (CNIS), Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy
| | - Antonella Dalla Cort
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy
| | - Andrea Masotti
- Bambino Gesù Children's Hospital-IRCCS, Research Laboratories, V.le di San Paolo 15, 00146, Rome, Italy.
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Wang JL, Chen Q, Du BB, Cao L, Lin H, Fan ZY, Dong J. Enhanced bone regeneration composite scaffolds of PLLA/β-TCP matrix grafted with gelatin and HAp. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 87:60-69. [PMID: 29549950 DOI: 10.1016/j.msec.2018.02.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 12/03/2017] [Accepted: 02/18/2018] [Indexed: 11/17/2022]
Abstract
The composite polylactide PLLA/β-TCP scaffolds were fabricated by solution casting and were coated with gelatin/hydroxyapatite (Gel/HAp) to improve the biological properties of the composite scaffolds. The Gel/HAp mixture was prepared using an in situ reaction, and a grafting-coating method was used to increase the efficiency of coating the PLLA/β-TCP matrix with Gel/HAp. First, free amino groups were introduced by 1,6-hexanediamine to aminolyze the PLLA/β-TCP matrix surface. Second, glutaraldehyde was coupled to Gel/HAp as a crosslinking agent. The structure and properties of Gel/HAp-modified PLLA/β-TCP films were characterized by Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and water contact angle measurements (WCA). The experimental results show that 23 wt% HAp was uniformly dispersed in the gelatin coating by in situ synthesis. The Gel/HAp composite coating was successfully immobilized on the aminolyzed PLLA/β-TCP surface via a chemical grafting method, which promoted a lower degradation rate and was more hydrophilic than a physical grafting method. The Gel/HAp composite coating adhered tightly and homogeneously to the hydrophobic PLLA/β-TCP surface. Moreover, mouse embryo osteoblast precursor (MC3T3-E1) cells grown on the scaffolds were behaviorally and morphologically characterized. The results indicated that the Gel/HAp composite coating was favorable for the attachment and proliferation of preosteoblasts and that Gel/HAp-NH-PLLA/β-TCP would be a candidate scaffold for bone repair.
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Affiliation(s)
- Jie-Lin Wang
- Department of Materials Science, Fudan University, Shanghai 200433, PR China
| | - Qian Chen
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Bei-Bei Du
- Department of Materials Science, Fudan University, Shanghai 200433, PR China
| | - Lu Cao
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Hong Lin
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Zhong-Yong Fan
- Department of Materials Science, Fudan University, Shanghai 200433, PR China.
| | - Jian Dong
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China.
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Rocca-Smith J, Chau N, Champion D, Brachais CH, Marcuzzo E, Sensidoni A, Piasente F, Karbowiak T, Debeaufort F. Effect of the state of water and relative humidity on ageing of PLA films. Food Chem 2017. [DOI: 10.1016/j.foodchem.2017.02.113] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Samad AA, Bethry A, Janouskova O, Ciccione J, Wenk C, Coll JL, Subra G, Etrych T, Omar FE, Bakkour Y, Coudane J, Nottelet B. Iterative Photoinduced Chain Functionalization as a Generic Platform for Advanced Polymeric Drug Delivery Systems. Macromol Rapid Commun 2017; 39. [DOI: 10.1002/marc.201700502] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/11/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Assala Al Samad
- IBMM (UMR5247); Univ Montpellier; CNRS; ENSCM; Montpellier France
- Laboratory of applied Chemistry; Faculty of Science III; Lebanese University; P.O. Box 826 Tripoli Lebanon
| | - Audrey Bethry
- IBMM (UMR5247); Univ Montpellier; CNRS; ENSCM; Montpellier France
| | - Olga Janouskova
- Institute of Macromolecular Chemistry; Czech Academy of Sciences; Heyrovského nám. 2 162 06 Prague Czech Republic
| | - Jérémie Ciccione
- IBMM (UMR5247); Univ Montpellier; CNRS; ENSCM; Montpellier France
| | - Christiane Wenk
- INSERM U1209; Institut Albert Bonniot/Université Grenoble Alpes; F-38000 Grenoble France
| | - Jean-Luc Coll
- INSERM U1209; Institut Albert Bonniot/Université Grenoble Alpes; F-38000 Grenoble France
| | - Gilles Subra
- IBMM (UMR5247); Univ Montpellier; CNRS; ENSCM; Montpellier France
| | - Tomas Etrych
- Institute of Macromolecular Chemistry; Czech Academy of Sciences; Heyrovského nám. 2 162 06 Prague Czech Republic
| | - Fawaz El Omar
- Laboratory of applied Chemistry; Faculty of Science III; Lebanese University; P.O. Box 826 Tripoli Lebanon
| | - Youssef Bakkour
- Laboratory of applied Chemistry; Faculty of Science III; Lebanese University; P.O. Box 826 Tripoli Lebanon
| | - Jean Coudane
- IBMM (UMR5247); Univ Montpellier; CNRS; ENSCM; Montpellier France
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Birhanu G, Akbari Javar H, Seyedjafari E, Zandi-Karimi A, Dusti Telgerd M. An improved surface for enhanced stem cell proliferation and osteogenic differentiation using electrospun composite PLLA/P123 scaffold. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:1274-1281. [PMID: 28835133 DOI: 10.1080/21691401.2017.1367928] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Poly-L-lactic acid (PLLA) nano fibrous scaffolds prepared by electrospinning technology have been used widely in tissue engineering applications. However, PLLA scaffolds are hydrophobic in nature, moreover the fibrous porous structure produced by electrospinning makes the scaffolds even more hydrophobic which generally limits cell attachment and proliferation. Polymer blending is one of the several efforts used so far to enhance hydrophilicity and recognized as an easy cost-effective approach for the manipulation physiochemical properties of polymeric biomaterials. Pluronic block copolymers containing hydrophilic poly(ethylene oxide) (PEO) blocks and hydrophobic poly(propylene oxide) (PPO) blocks are arranged in triblock structure: PEO-PPO-PEO. It is commonly used recently to blend hydrophobic polymers to enhance hydrophilicity for pharmaceutical and tissue engineering applications. In this study, novel pluronic P123 blend PLLA electrospun nanofibre scaffolds with improved hydrophilicity and biological properties were fabricated. The surface morphology and surface chemistry of the nanofibre scaffolds were characterized by scanning electron microscope (SEM) and FTIR analyses. Surface hydrophilicity and change in mechanical properties were studied. The ability of the scaffolds to support the attachment, and proliferation and differentiation of human adipose tissue derived MSCs, were evaluated generally. The fabricated scaffolds have completely improved, hydrophilicity, similar osteogenic differentiation potential with plasma-treated PLLA nanofibre scaffold, and hence P123 blend PLLA electrospun nanofibre scaffolds are a very good and cost effective choice as a scaffold for bone tissue engineering application.
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Affiliation(s)
- Gebremariam Birhanu
- a Department of Pharmaceutics, Faculty of Pharmacy , Tehran University of Medical Sciences, International Campus (TUMS-IC) , Tehran , Iran.,b School of Pharmacy, College of Health Sciences , Addis Ababa University , Addis Ababa , Ethiopia
| | - Hamid Akbari Javar
- c Department of Pharmaceutics, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
| | - Ehsan Seyedjafari
- d Department of Biotechnology, College of Science , University of Tehran , Tehran , Iran
| | - Ali Zandi-Karimi
- d Department of Biotechnology, College of Science , University of Tehran , Tehran , Iran
| | - Mehdi Dusti Telgerd
- e Department of Pharmaceutical Biomaterials, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
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35
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Wang Y, Qian J, Liu T, Xu W, Zhao N, Suo A. Electrospun PBLG/PLA nanofiber membrane for constructing in vitro 3D model of melanoma. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:313-318. [DOI: 10.1016/j.msec.2017.03.098] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Accepted: 03/12/2017] [Indexed: 01/22/2023]
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36
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Shimomura S, Matsuno H, Sanada K, Tanaka K. Cell adhesion on glassy scaffolds with a different mechanical response. J Mater Chem B 2017; 5:714-719. [PMID: 32263839 DOI: 10.1039/c6tb02617f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
L929 mouse fibroblast cells were cultured on bilayer films composed of a glassy poly(methyl methacrylate) (PMMA) on a rubbery polyisoprene. When the thickness of the upper PMMA film fell short of a threshold value of 50 nm, the adhesion of fibroblasts on it was remarkably suppressed. A possible explanation is that the surface of a bilayer with an ultrathin PMMA layer apparently becomes softer due to the manifestation of a mechanical response from the rubbery layer underneath. Finite element analysis shows that the shear stress at the bilayer surface induced by traction force of the attached cells is dependent on the PMMA thickness, similar to the cell adhesion behavior. These results make it clear that fibroblasts can sense the surface stiffness of polymers with a modulus even on the order of MPa.
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37
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Kikkawa Y, Tanaka S, Norikane Y. Photo-triggered enzymatic degradation of biodegradable polymers. RSC Adv 2017. [DOI: 10.1039/c7ra10598c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Control over the initiation of enzymatic degradation of biodegradable polymers was demonstrated by tuning the solid-molten state of a surface coated azo-compound with light irradiation.
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Affiliation(s)
- Yoshihiro Kikkawa
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Satoko Tanaka
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Yasuo Norikane
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
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39
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Mannion AM, Bates FS, Macosko CW. Synthesis and Rheology of Branched Multiblock Polymers Based on Polylactide. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00792] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Alexander M. Mannion
- Department of Chemical Engineering
and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Frank S. Bates
- Department of Chemical Engineering
and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Christopher W. Macosko
- Department of Chemical Engineering
and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
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40
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Sabek OM, Farina M, Fraga DW, Afshar S, Ballerini A, Filgueira CS, Thekkedath UR, Grattoni A, Gaber AO. Three-dimensional printed polymeric system to encapsulate human mesenchymal stem cells differentiated into islet-like insulin-producing aggregates for diabetes treatment. J Tissue Eng 2016; 7:2041731416638198. [PMID: 27152147 PMCID: PMC4843232 DOI: 10.1177/2041731416638198] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 02/18/2016] [Indexed: 01/19/2023] Open
Abstract
Diabetes is one of the most prevalent, costly, and debilitating diseases in the world. Pancreas and islet transplants have shown success in re-establishing glucose control and reversing diabetic complications. However, both are limited by donor availability, need for continuous immunosuppression, loss of transplanted tissue due to dispersion, and lack of vascularization. To overcome the limitations of poor islet availability, here, we investigate the potential of bone marrow–derived mesenchymal stem cells differentiated into islet-like insulin-producing aggregates. Islet-like insulin-producing aggregates, characterized by gene expression, are shown to be similar to pancreatic islets and display positive immunostaining for insulin and glucagon. To address the limits of current encapsulation systems, we developed a novel three-dimensional printed, scalable, and potentially refillable polymeric construct (nanogland) to support islet-like insulin-producing aggregates’ survival and function in the host body. In vitro studies showed that encapsulated islet-like insulin-producing aggregates maintained viability and function, producing steady levels of insulin for at least 4 weeks. Nanogland—islet-like insulin-producing aggregate technology here investigated as a proof of concept holds potential as an effective and innovative approach for diabetes cell therapy.
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Affiliation(s)
- Omaima M Sabek
- Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
| | - Marco Farina
- Department of Nanomedicine, Institute for Academic Medicine, Houston Methodist Research Institute, Houston, TX, USA; Department of Electronics and Telecommunications, Politecnico di Torino, Torino, Italy
| | - Daniel W Fraga
- Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
| | - Solmaz Afshar
- Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
| | - Andrea Ballerini
- Department of Nanomedicine, Institute for Academic Medicine, Houston Methodist Research Institute, Houston, TX, USA; Department of Biotechnology and Translational Medicine, The University of Milan, Milan, Italy
| | - Carly S Filgueira
- Department of Nanomedicine, Institute for Academic Medicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Usha R Thekkedath
- Department of Nanomedicine, Institute for Academic Medicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Alessandro Grattoni
- Department of Nanomedicine, Institute for Academic Medicine, Houston Methodist Research Institute, Houston, TX, USA
| | - A Osama Gaber
- Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
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41
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Qazi S, Kjaergaard B, Yang F, Shen H, Wang S, Zhang N, Vyberg M, Wøyen A, Andreasen JJ. No Effect of Rapamycin on Cardiac Adhesion Formation: A Drug-Loaded Bioresorbable Polylactone Patch in a Porcine Cardiac Surgical Model. Eur Surg Res 2016; 56:76-85. [DOI: 10.1159/000441914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 10/22/2015] [Indexed: 11/19/2022]
Abstract
Background: The fusing of the epicardium and sternum due to adhesion is a common problem during repeated cardiac surgery and carries with it an increased risk of bleeding. The use of barriers and patches has been tested to prevent the formation of adhesions, but the very presence of a patch can provoke adhesion formation. The objective of this study was, therefore, to investigate both biodegradable and bioresorbable polylactone patches [(polycaprolactone-poly(ethylene oxide)-polycaprolactone tri-block copolymer (PCE)]. The patches were also tested with a controlled release of rapamycin, which prevents cell migration and extracellular matrix deposition. The clinical effectiveness of rapamycin in pericardial patches has not previously been examined. Materials and Methods: Three groups of 6 female Danish Landrace pigs underwent sternotomy and abrasion of the epicardium, before being randomized to either group 1 - the control group (with no patch), group 2 - PCE patch implanted between the sternum and epicardium, or group 3 - PCE patch and slow-release 1.6-mg rapamycin. After a median time period of 26 days, the pigs were euthanized and their hearts removed en bloc with the sternum, for macroscopic, histological and pathological examination. Results: Upon macroscopic examination, a significantly lower degree of adhesion in group 2, as compared to group 1 (p < 0.05), was found. Histological analysis of the tissues showed significantly more fibrosis, inflammation and foreign body granulomas (p < 0.05) in both group 2 and group 3, when compared to group 1. Conclusion: A PCE patch following sternotomy in animal subjects reduces postoperative macroscopic adhesions without reducing microscopic fibrosis or inflammation. Loading the patch with rapamycin was found not to increase the antifibrotic effect.
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42
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Wang J, Sun B, Wang X, Liang G, Zhang J, Xu C, Xiao Z. Enrichment of cancer stem cells by cotton fiber. RSC Adv 2016. [DOI: 10.1039/c5ra24226f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, a new, simple method for selecting and expanding CSCs was developed. In the system, PC12 cells were cultured on a supporting material of cotton fibers treated by NH3 plasma.
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Affiliation(s)
- Junhua Wang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing
- China
| | - Bo Sun
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing
- China
| | - Xiu Wang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing
- China
| | - Gaofeng Liang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing
- China
| | - Jun Zhang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing
- China
| | - Chengxiong Xu
- Cancer Center
- Daping Hospital and Research Institute of Surgery
- The Third Military Medical University
- Chongqing
- China
| | - Zhongdang Xiao
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing
- China
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Michaljaničová I, Slepička P, Hadravová J, Rimpelová S, Ruml T, Malinský P, Veselý M, Švorčík V. High power plasma as an efficient tool for polymethylpentene cytocompatibility enhancement. RSC Adv 2016. [DOI: 10.1039/c6ra14949a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
High power plasma as an efficient tool for polymethylpentene cytocompatibility enhancement.
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Affiliation(s)
- I. Michaljaničová
- Department of Solid State Engineering
- The University of Chemistry and Technology
- Prague
- Czech Republic
| | - P. Slepička
- Department of Solid State Engineering
- The University of Chemistry and Technology
- Prague
- Czech Republic
| | - J. Hadravová
- Department of Biochemistry and Microbiology
- University of Chemistry and Technology
- Prague
- Czech Republic
| | - S. Rimpelová
- Department of Biochemistry and Microbiology
- University of Chemistry and Technology
- Prague
- Czech Republic
| | - T. Ruml
- Department of Biochemistry and Microbiology
- University of Chemistry and Technology
- Prague
- Czech Republic
| | - P. Malinský
- Nuclear Physics Institute
- Czech Academy of Sciences v.v.i
- Czech Republic
| | - M. Veselý
- Department of Organic Technology
- University of Chemistry and Technology
- Prague
- Czech Republic
| | - V. Švorčík
- Department of Solid State Engineering
- The University of Chemistry and Technology
- Prague
- Czech Republic
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Qian W, Song X, Feng C, Xu P, Jiang X, Li Y, Huang X. Construction of PEG-based amphiphilic brush polymers bearing hydrophobic poly(lactic acid) side chains via successive RAFT polymerization and ROP. Polym Chem 2016. [DOI: 10.1039/c6py00189k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article reports the synthesis of PEG-b-(PAA-g-PLA) amphiphilic brush polymers by the combination of RAFT polymerization and organocatalytic ROP, which could self-assemble into spheres for sustained release of doxorubicin.
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Affiliation(s)
- Wenhao Qian
- Department of Stomatology
- Shanghai Xuhui District Dental Center
- Shanghai 200032
- People's Republic of China
| | - Xuemei Song
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Chun Feng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Peicheng Xu
- Department of Stomatology
- Shanghai Xuhui District Dental Center
- Shanghai 200032
- People's Republic of China
| | - Xue Jiang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Yongjun Li
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
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Zhao MD, Björninen M, Cao L, Wang HR, Pelto J, Li XQ, Hyttinen J, Jiang YQ, Kellomäki M, Miettinen S, Sándor GK, Seppänen R, Haimi S, Dong J. Polypyrrole coating on poly-(lactide/glycolide)-
β
-tricalcium phosphate screws enhances new bone formation in rabbits. Biomed Mater 2015; 10:065016. [DOI: 10.1088/1748-6041/10/6/065016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Bergemann C, Cornelsen M, Quade A, Laube T, Schnabelrauch M, Rebl H, Weißmann V, Seitz H, Nebe B. Continuous cellularization of calcium phosphate hybrid scaffolds induced by plasma polymer activation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 59:514-523. [PMID: 26652403 DOI: 10.1016/j.msec.2015.10.048] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 10/13/2015] [Accepted: 10/15/2015] [Indexed: 12/11/2022]
Abstract
The generation of hybrid materials based on β-tricalcium phosphate (TCP) and various biodegradable polymers like poly(l-lactide-co-d,l-lactide) (PLA) represents a common approach to overcoming the disadvantages of pure TCP devices. These disadvantages lie in TCP's mechanical properties, such as brittleness. The positive characteristic of PLA - improvement of compressive strength of calcium phosphate scaffolds - is diametrically opposed to its cell attractiveness. Therefore, the objective of this work was to optimize osteoblast migration and cellularization inside a three-dimensionally (3D) printed, PLA polymer stabilized TCP hybrid scaffold by a plasma polymer process depositing amino groups via allylamine. MG-63 osteoblastic cells inside the 10mm hybrid scaffold were dynamically cultivated for 14days in a 3D model system integrated in a perfusion reactor. The whole TCP/PLA hybrid scaffold was continuously colonized due to plasma polymerized allylamine activation inducing the migration potential of osteoblasts.
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Affiliation(s)
- Claudia Bergemann
- University Medical Center Rostock, Cell Biology, Schillingallee 69, D-18057 Rostock, Germany
| | - Matthias Cornelsen
- University of Rostock, Fluid Technology and Microfluidics, Justus-von-Liebig Weg 6, D-18059 Rostock, Germany
| | - Antje Quade
- Leibniz-Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, D-17489 Greifswald, Germany
| | - Thorsten Laube
- INNOVENT e.V., Biomaterials Department, Pruessingstrasse 27B, D-07745 Jena, Germany
| | | | - Henrike Rebl
- University Medical Center Rostock, Cell Biology, Schillingallee 69, D-18057 Rostock, Germany
| | - Volker Weißmann
- Institute for Polymer Technologies (IPT) e.V., Alter Holzhafen 19, D-23966 Wismar, Germany
| | - Hermann Seitz
- University of Rostock, Fluid Technology and Microfluidics, Justus-von-Liebig Weg 6, D-18059 Rostock, Germany
| | - Barbara Nebe
- University Medical Center Rostock, Cell Biology, Schillingallee 69, D-18057 Rostock, Germany.
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Barker IA, Hall DJ, Hansell CF, Du Prez FE, O'Reilly RK, Dove AP. Tetrazine-norbornene click reactions to functionalize degradable polymers derived from lactide. Macromol Rapid Commun 2015; 32:1362-6. [PMID: 25867900 DOI: 10.1002/marc.201100324] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 07/07/2011] [Indexed: 11/06/2022]
Abstract
Post-polymerization modification of polymers derived from sustainable resources using the click reaction between tetrazines and norbornenes is shown to provide a mild and efficient route for the synthesis of functional degradable polymers. Norbornene chain-end functional poly(lactide) was synthesized using organocatalytic methods and functionalized by the addition of 3,6-di-2-pyridyl-1,2,4,5-tetrazine without degradation of the polymer backbone. The versatility of this reaction was demonstrated by the application of analogues bearing amine and poly(ethylene oxide) groups to realize amine-functional polymers and block copolymers. Poly(spiro[6-methyl-1,4-dioxane-2,5-dione-3,2'-bicyclo[2.2.1]hept[5]ene]) was prepared from lactide. The pendant norbornene group on the backbone of the resultant polymer was modified in a similar manner to produce functional degradable polymers and graft co-polymers.
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Affiliation(s)
- Ian A Barker
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
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48
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Li Z, Shen H, Shuai K, Hu X. Effect of composition on morphology structure and cell affinity of poly(caprolactone-co-glycolide)-co-poly(ethylene glycol) microspheres. J Appl Polym Sci 2015. [DOI: 10.1002/app.42861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Zhe Li
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; National Center for Nanoscience and Technology; Beijing 100190 China
- Department of urology; Meitan General Hospital; Beijing 100021 China
| | - Hong Shen
- BNLMS, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Kegang Shuai
- Department of urology; Meitan General Hospital; Beijing 100021 China
| | - Xixue Hu
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; National Center for Nanoscience and Technology; Beijing 100190 China
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Maharana T, Pattanaik S, Routaray A, Nath N, Sutar AK. Synthesis and characterization of poly(lactic acid) based graft copolymers. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.05.006] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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50
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Pellis A, Acero EH, Weber H, Obersriebnig M, Breinbauer R, Srebotnik E, Guebitz GM. Biocatalyzed approach for the surface functionalization of poly(L‐lactic acid) films using hydrolytic enzymes. Biotechnol J 2015; 10:1739-49. [DOI: 10.1002/biot.201500074] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 04/02/2015] [Accepted: 05/11/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Alessandro Pellis
- University of Natural Resources and Life Sciences, Institute for Environmental Biotechnology, Tulln, Austria
| | | | - Hansjoerg Weber
- Graz University of Technology, Institute of Organic Chemistry, Graz, Austria
| | - Michael Obersriebnig
- University of Natural Resources and Life Sciences, Institute of Wood Technology and Renewable Resources, Tulln, Austria
| | - Rolf Breinbauer
- Graz University of Technology, Institute of Organic Chemistry, Graz, Austria
| | - Ewald Srebotnik
- Vienna University of Technology, Institute of Chemical Engineering, Vienna, Austria
| | - Georg M. Guebitz
- University of Natural Resources and Life Sciences, Institute for Environmental Biotechnology, Tulln, Austria
- Austrian Centre of Industrial Biotechnology GmbH, Tulln, Austria
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