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Zhang X, Wang P, Xu Y, Wang J, Shi Y, Niu W, Song W, Liu R, Yu CY, Wei H. Facile synthesis and self-assembly behaviors of biodegradable amphiphilic hyperbranched copolymers with reducible poly(caprolactone) grafts. Polym Chem 2022. [DOI: 10.1039/d2py01112c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A reducible hydrophobic macromonomer, HEMA-g-PCL, developed herein provides a facile yet robust strategy for biodegradable amphiphilic hyperbranched copolymers.
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Affiliation(s)
- Xianshuo Zhang
- School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, China
| | - Peipei Wang
- School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, China
| | - Yaoyu Xu
- School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, China
| | - Jun Wang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Department of Pharmacy and Pharmacology, University of South China, Hengyang, 421001, China
| | - Yunfeng Shi
- School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, China
| | - Wenxu Niu
- School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, China
| | - Wenjing Song
- School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, China
| | - Ruru Liu
- School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, China
| | - Cui-Yun Yu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Department of Pharmacy and Pharmacology, University of South China, Hengyang, 421001, China
| | - Hua Wei
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Department of Pharmacy and Pharmacology, University of South China, Hengyang, 421001, China
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2
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Olaru M, Sachelarie L, Calin G. Hard Dental Tissues Regeneration-Approaches and Challenges. MATERIALS 2021; 14:ma14102558. [PMID: 34069265 PMCID: PMC8156070 DOI: 10.3390/ma14102558] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/10/2021] [Accepted: 05/13/2021] [Indexed: 12/13/2022]
Abstract
With the development of the modern concept of tissue engineering approach and the discovery of the potential of stem cells in dentistry, the regeneration of hard dental tissues has become a reality and a priority of modern dentistry. The present review reports the recent advances on stem-cell based regeneration strategies for hard dental tissues and analyze the feasibility of stem cells and of growth factors in scaffolds-based or scaffold-free approaches in inducing the regeneration of either the whole tooth or only of its component structures.
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Affiliation(s)
- Mihaela Olaru
- “Petru Poni” Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania;
| | - Liliana Sachelarie
- Faculty of Medical Dentistry, “Apollonia” University of Iasi, 2 Muzicii Str., 700399 Iasi, Romania;
- Correspondence:
| | - Gabriela Calin
- Faculty of Medical Dentistry, “Apollonia” University of Iasi, 2 Muzicii Str., 700399 Iasi, Romania;
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3
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Jiao Y, Li C, Liu L, Wang F, Liu X, Mao J, Wang L. Construction and application of textile-based tissue engineering scaffolds: a review. Biomater Sci 2020; 8:3574-3600. [PMID: 32555780 DOI: 10.1039/d0bm00157k] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tissue engineering (TE) provides a practicable method for tissue and organ repair or substitution. As the most important component of TE, a scaffold plays a critical role in providing a growing environment for cell proliferation and functional differentiation as well as good mechanical support. And the restorative effects are greatly dependent upon the nature of the scaffold including the composition, morphology, structure, and mechanical performance. Medical textiles have been widely employed in the clinic for a long time and are being extensively investigated as TE scaffolds. However, unfortunately, the advantages of textile technology cannot be fully exploited in tissue regeneration due to the ignoring of the diversity of fabric structures. Therefore, this review focuses on textile-based scaffolds, emphasizing the significance of the fabric design and the resultant characteristics of cell behavior and extracellular matrix reconstruction. The structure and mechanical behavior of the fabrics constructed by various textile techniques for different tissue repairs are summarized. Furthermore, the prospect of structural design in the TE scaffold preparation was anticipated, including profiled fibers and some unique and complex textile structures. Hopefully, the readers of this review would appreciate the importance of structural design of the scaffold and the usefulness of textile-based TE scaffolds in tissue regeneration.
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Affiliation(s)
- Yongjie Jiao
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, Shanghai 201620, China.
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4
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Abrisham M, Noroozi M, Panahi-Sarmad M, Arjmand M, Goodarzi V, Shakeri Y, Golbaten-Mofrad H, Dehghan P, Seyfi Sahzabi A, Sadri M, Uzun L. The role of polycaprolactone-triol (PCL-T) in biomedical applications: A state-of-the-art review. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109701] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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5
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Malikmammadov E, Tanir TE, Kiziltay A, Hasirci N. Preparation and characterization of poly(ε-caprolactone) scaffolds modified with cell-loaded fibrin gel. Int J Biol Macromol 2019; 125:683-689. [DOI: 10.1016/j.ijbiomac.2018.12.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 11/22/2018] [Accepted: 12/02/2018] [Indexed: 01/08/2023]
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6
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Amokrane G, Falentin-Daudré C, Ramtani S, Migonney V. A Simple Method to Functionalize PCL Surface by Grafting Bioactive Polymers Using UV Irradiation. Ing Rech Biomed 2018. [DOI: 10.1016/j.irbm.2018.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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7
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Malikmammadov E, Tanir TE, Kiziltay A, Hasirci V, Hasirci N. PCL and PCL-based materials in biomedical applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:863-893. [PMID: 29053081 DOI: 10.1080/09205063.2017.1394711] [Citation(s) in RCA: 376] [Impact Index Per Article: 53.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Biodegradable polymers have met with an increasing demand in medical usage over the last decades. One of such polymers is poly(ε-caprolactone) (PCL), which is a polyester that has been widely used in tissue engineering field for its availability, relatively inexpensive price and suitability for modification. Its chemical and biological properties, physicochemical state, degradability and mechanical strength can be adjusted, and therefore, it can be used under harsh mechanical, physical and chemical conditions without significant loss of its properties. Degradation time of PCL is quite long, thus it is used mainly in the replacement of hard tissues in the body where healing also takes an extended period of time. It is also used at load-bearing tissues of the body by enhancing its stiffness. However, due to its tailorability, use of PCL is not restricted to one type of tissue and it can be extended to engineering of soft tissues by decreasing its molecular weight and degradation time. This review outlines the basic properties of PCL, its composites, blends and copolymers. We report on various techniques for the production of different forms, and provide examples of medical applications such as tissue engineering and drug delivery systems covering the studies performed in the last decades.
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Affiliation(s)
- Elbay Malikmammadov
- a BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering , Middle East Technical University , Ankara , Turkey.,b Graduate Department of Micro and Nanotechnology, Graduate School of Natural and Applied Sciences , Middle East Technical University , Ankara , Turkey
| | - Tugba Endogan Tanir
- a BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering , Middle East Technical University , Ankara , Turkey.,c Central Laboratory , Middle East Technical University , Ankara , Turkey
| | - Aysel Kiziltay
- a BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering , Middle East Technical University , Ankara , Turkey.,c Central Laboratory , Middle East Technical University , Ankara , Turkey
| | - Vasif Hasirci
- a BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering , Middle East Technical University , Ankara , Turkey.,b Graduate Department of Micro and Nanotechnology, Graduate School of Natural and Applied Sciences , Middle East Technical University , Ankara , Turkey.,d Department of Biological Sciences , Middle East Technical University , Ankara , Turkey
| | - Nesrin Hasirci
- a BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering , Middle East Technical University , Ankara , Turkey.,b Graduate Department of Micro and Nanotechnology, Graduate School of Natural and Applied Sciences , Middle East Technical University , Ankara , Turkey.,e Department of Chemistry , Middle East Technical University , Ankara , Turkey
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8
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Lin JH, Lee MC, Chen CK, Huang CL, Chen YS, Wen SP, Kuo ST, Lou CW. Recovery evaluation of rats' damaged tibias: Implantation of core-shell structured bone scaffolds made using hollow braids and a freeze-thawing process. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.04.156] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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9
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Hajiali F, Tajbakhsh S, Shojaei A. Fabrication and Properties of Polycaprolactone Composites Containing Calcium Phosphate-Based Ceramics and Bioactive Glasses in Bone Tissue Engineering: A Review. POLYM REV 2017. [DOI: 10.1080/15583724.2017.1332640] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Faezeh Hajiali
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Saeid Tajbakhsh
- College of Chemical Engineering, University of Tehran, Tehran, Iran
| | - Akbar Shojaei
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
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10
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Maksimkin A, Senatov F, Anisimova N, Kiselevskiy M, Zalepugin D, Chernyshova I, Tilkunova N, Kaloshkin S. Multilayer porous UHMWPE scaffolds for bone defects replacement. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:366-372. [DOI: 10.1016/j.msec.2016.12.104] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 12/02/2016] [Accepted: 12/20/2016] [Indexed: 10/20/2022]
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11
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Sharifi F, Irani S, Zandi M, Soleimani M, Atyabi SM. Comparative of fibroblast and osteoblast cells adhesion on surface modified nanofibrous substrates based on polycaprolactone. Prog Biomater 2016; 5:213-222. [PMID: 27995589 PMCID: PMC5301470 DOI: 10.1007/s40204-016-0059-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 11/07/2016] [Indexed: 10/29/2022] Open
Abstract
One of the determinant factors for successful bioengineering is to achieve appropriate nano-topography and three-dimensional substrate. In this research, polycaprolactone (PCL) nano-fibrous mat with different roughness modified with O2 plasma was fabricated via electrospinning. The purpose of this study was to evaluate the effect of plasma modification along with surface nano-topography of mats on the quality of human fibroblast (HDFs) and osteoblast cells (OSTs)-substrate interaction. Surface properties were studied using scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle, Fourier-transformation infrared spectroscopy. We evaluated mechanical properties of fabricated mats by tensile test. The viability and proliferation of HDFs and OSTs on the substrates were followed by 3-[4, 5-dimethylthiazol-2-yl]-2, 5-diphenyltetrazolium bromide (MTT). Mineralization of the substrate was determined by alizarin red staining method and calcium content of OSTs was determined by calcium content kit. Cells morphology was studied by SEM analysis. The results revealed that the plasma-treated electrospun nano-fibrous substrate with higher roughness was an excellent designed substrate. A bioactive topography for stimulating proliferation of HDFs and OSTs is to accelerate the latter's differentiation time. Therefore, the PCL substrate with high density and major nano-topography were considered as a bio-functional and elegant bio-substrate for tissue regeneration applications.
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Affiliation(s)
- Fereshteh Sharifi
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shiva Irani
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mojgan Zandi
- Department of Biomaterials, Iran Polymer and Petrochemical Institute, Tehran, Iran.
| | - Masoud Soleimani
- Department of Hematology, Faculty of Medical Science, Tarbiat Moddares University, Tehran, Iran
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12
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Zhang J, Liu H, Ding JX, Wu J, Zhuang XL, Chen XS, Wang JC, Yin JB, Li ZM. High-Pressure Compression-Molded Porous Resorbable Polymer/Hydroxyapatite Composite Scaffold for Cranial Bone Regeneration. ACS Biomater Sci Eng 2016; 2:1471-1482. [DOI: 10.1021/acsbiomaterials.6b00202] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jin Zhang
- College
of Polymer Science and Engineering, State Key Laboratory of Polymer
Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, P. R. China
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - He Liu
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- Department
of Orthopedics, Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Jian-Xun Ding
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jie Wu
- Department
of Polymer Materials, Shanghai University, Shanghai 200444, P. R. China
| | - Xiu-Li Zhuang
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Xue-Si Chen
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jin-Cheng Wang
- Department
of Orthopedics, Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Jing-Bo Yin
- Department
of Polymer Materials, Shanghai University, Shanghai 200444, P. R. China
| | - Zhong-Ming Li
- College
of Polymer Science and Engineering, State Key Laboratory of Polymer
Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, P. R. China
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13
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Mechanical properties and shape memory effect of 3D-printed PLA-based porous scaffolds. J Mech Behav Biomed Mater 2016; 57:139-48. [DOI: 10.1016/j.jmbbm.2015.11.036] [Citation(s) in RCA: 291] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 11/26/2015] [Accepted: 11/30/2015] [Indexed: 02/07/2023]
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14
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Rodenas-Rochina J, Vidaurre A, Castilla Cortázar I, Lebourg M. Effects of hydroxyapatite filler on long-term hydrolytic degradation of PLLA/PCL porous scaffolds. Polym Degrad Stab 2015. [DOI: 10.1016/j.polymdegradstab.2015.04.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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15
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Chen WC, Ko CL, Yang JK, Wu HY, Lin JH. Comparison and preparation of multilayered polylactic acid fabric strengthen calcium phosphate-based bone substitutes for orthopedic applications. J Artif Organs 2015; 19:70-9. [PMID: 26280316 DOI: 10.1007/s10047-015-0863-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 08/04/2015] [Indexed: 11/28/2022]
Abstract
An attempt to maintain the three-dimensional space into restorative sites through the conveniently pack porous fillers are general used strategy. Advancement in the manufacturing protective shells in the scaffolds, which would be filled with brittle ceramic grafts for the development of highly connective pores provides the approach to solve crack problem for generating the tissues. Therefore, multilayered braided and alkalized poly(lactic acid) (PLA) composites with calcium phosphate bone cement (CPC) were synthesized and compared. The PLA/CPC composites were divided into various groups according to a series of heat-treatment temperatures (100-190 °C) and periods (1-3 h) and then characterized. The effects of 24-h immersion on the strength decay resistance of the samples were compared. Results showed that the residual oil capped on the surfaces of alkalized PLA braid was removed, and the structure was unaltered. However, the reduced tensile stress of alkalized PLA braids was due to ester-group formation by hydrolysis. Mechanical test results of PLA/CPC composites showed that the strength significantly increased after heat treatment, except when the heating temperature was higher than the PLA melting point at approximately 160-170 °C. The degree of PLA after recrystallization became higher than that of unheated composites, thereby leading to reduced strength and toughness of the specimen. Braiding fibers of biodegradable PLA reinforced and toughened the structure particularly of the extra-brittle material of thin-sheet CPC after implantation.
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Affiliation(s)
- Wen-Cheng Chen
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan.
| | - Chia-Ling Ko
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan
| | - Jia-Kai Yang
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan
| | - Hui-Yu Wu
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan
| | - Jia-Horng Lin
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, 100, Wenhwa Rd., Seatwen, Taichung, 40724, Taiwan.,School of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan.,Department of Biotechnology, Asia University, Taichung, 41354, Taiwan
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16
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Ronca A, Guarino V, Raucci MG, Salamanna F, Martini L, Zeppetelli S, Fini M, Kon E, Filardo G, Marcacci M, Ambrosio L. Large defect-tailored composite scaffolds for in vivo bone regeneration. J Biomater Appl 2014; 29:715-27. [PMID: 24951457 DOI: 10.1177/0885328214539823] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The discovery of new strategies to repair large segmental bone defects is currently an open challenge for worldwide clinicians. In the treatment of critical-sized bone defects, an alternative strategy to traditional bone grafting is always more frequently the use of tailor-made scaffolds modelled on the final size and shape of the implant site. Here, poly-ε-caprolactone-based composite scaffolds including poly-L-lactic acid continuous fibres and hyaluronan derivates (i.e. HYAFF11®) have been investigated for the peculiar 3D architecture characterized by interconnected macroporous networks and tunable mechanical properties. Composite scaffolds were immersed in simulated body fluid solution in order to support in vivo tissue in-growth. Scaffolds loaded with autologous cells (bone marrow stromal cells) plus platelet-rich plasma and osteoconductive protein such bone morphogenetic protein-7 were also tested to evaluate eventual enhancement in bone regeneration. The morphological and mechanical properties of poly-L-lactic acid-reinforced composite scaffolds have been studied to identify the optimal scaffold design to match the implant-site requirements of sheep metatarsal defects. Dynamic mechanical tests allowed to underline the viscoelastic response of the scaffold - resulting in elastic moduli from 2.5 to 1.3 MPa, suitable to temporarily support the structural function of damaged bone tissue. In vivo preliminary investigations in a sheep model of metatarsus shaft defect also showed the attitude of the scaffold to promote osteogenesis, preferentially in association with bone marrow stromal cell and platelet-rich plasma, even if the highest amount of mature bone was reached in the case of scaffold loaded with human bone morphogenetic protein-7 released via hydrolytic degradation of HYAFF11® phases in the implant site.
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Affiliation(s)
- Alfredo Ronca
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Napoli, Italy
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Napoli, Italy
| | - Maria Grazia Raucci
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Napoli, Italy
| | - Francesca Salamanna
- Laboratory of Biocompatibility, Technological Innovations and Advanced Therapies-Department RIT Rizzoli, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Lucia Martini
- Laboratory of Biocompatibility, Technological Innovations and Advanced Therapies-Department RIT Rizzoli, Rizzoli Orthopaedic Institute, Bologna, Italy Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Stefania Zeppetelli
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Napoli, Italy
| | - Milena Fini
- Laboratory of Biocompatibility, Technological Innovations and Advanced Therapies-Department RIT Rizzoli, Rizzoli Orthopaedic Institute, Bologna, Italy Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Elisaveta Kon
- II Clinic - Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - G Filardo
- II Clinic - Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Maurilio Marcacci
- II Clinic - Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Luigi Ambrosio
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Napoli, Italy
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17
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Singhal P, Small W, Cosgriff-Hernandez E, Maitland DJ, Wilson TS. Low density biodegradable shape memory polyurethane foams for embolic biomedical applications. Acta Biomater 2014; 10:67-76. [PMID: 24090987 PMCID: PMC4075478 DOI: 10.1016/j.actbio.2013.09.027] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 09/09/2013] [Accepted: 09/24/2013] [Indexed: 11/30/2022]
Abstract
Low density shape memory polymer foams hold significant interest in the biomaterials community for their potential use in minimally invasive embolic biomedical applications. The unique shape memory behavior of these foams allows them to be compressed to a miniaturized form, which can be delivered to an anatomical site via a transcatheter process and thereafter actuated to embolize the desired area. Previous work in this field has described the use of a highly covalently crosslinked polymer structure for maintaining excellent mechanical and shape memory properties at the application-specific ultralow densities. This work is aimed at further expanding the utility of these biomaterials, as implantable low density shape memory polymer foams, by introducing controlled biodegradability. A highly covalently crosslinked network structure was maintained by use of low molecular weight, symmetrical and polyfunctional hydroxyl monomers such as polycaprolactone triol (PCL-t, Mn= 900 g), N,N,N0,N0-tetrakis(hydroxypropyl)ethylenediamine and tris(2-hydroxyethyl)amine. Control over the degradation rate of the materials was achieved by changing the concentration of the degradable PCL-t monomer and by varying the material hydrophobicity. These porous SMP materials exhibit a uniform cell morphology and excellent shape recovery, along with controllable actuation temperature and degradation rate. We believe that they form a new class of low density biodegradable SMP scaffolds that can potentially be used as "smart" non-permanent implants in multiple minimally invasive biomedical applications.
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Affiliation(s)
- Pooja Singhal
- 7000 East Avenue, Lawrence Livermore National Laboratory, Livermore, CA 94550 USA
- 5045 Emerging Technologies Building, Department of Biomedical Engineering, 3120 Texas A&M University, College Station, TX 77843-3120 USA
| | - Ward Small
- 7000 East Avenue, Lawrence Livermore National Laboratory, Livermore, CA 94550 USA
| | - Elizabeth Cosgriff-Hernandez
- 5045 Emerging Technologies Building, Department of Biomedical Engineering, 3120 Texas A&M University, College Station, TX 77843-3120 USA
| | - Duncan J Maitland
- 5045 Emerging Technologies Building, Department of Biomedical Engineering, 3120 Texas A&M University, College Station, TX 77843-3120 USA
| | - Thomas S Wilson
- 7000 East Avenue, Lawrence Livermore National Laboratory, Livermore, CA 94550 USA
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18
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Poly(ε-caprolactone) composite scaffolds loaded with gentamicin-containing β-tricalcium phosphate/gelatin microspheres for bone tissue engineering applications. J Appl Polym Sci 2013. [DOI: 10.1002/app.40110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Yaprakci V, Erdemli O, Kayabolen A, Tezcaner A, Bozkurt F, Keskin D. In vitro/in vivocomparison of cefuroxime release from poly(ε-caprolactone)-calcium sulfate implants for osteomyelitis treatment. Biotechnol Appl Biochem 2013; 60:603-16. [DOI: 10.1002/bab.1118] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 04/08/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Volkan Yaprakci
- Department of Veterinary Medicine; Afyon Kocatepe University; Afyon Turkey
| | - Ozge Erdemli
- Department of Engineering Sciences; Middle East Technical University; Ankara Turkey
| | - Alisan Kayabolen
- Department of Biomedical Engineering; Middle East Technical University; Ankara Turkey
| | - Aysen Tezcaner
- Department of Engineering Sciences; Middle East Technical University; Ankara Turkey
- Department of Biomedical Engineering; Middle East Technical University; Ankara Turkey
- BIOMATEN, Middle East Technical University; Ankara Turkey
| | - Fatih Bozkurt
- Department of Veterinary Medicine; Afyon Kocatepe University; Afyon Turkey
| | - Dilek Keskin
- Department of Engineering Sciences; Middle East Technical University; Ankara Turkey
- Department of Biomedical Engineering; Middle East Technical University; Ankara Turkey
- BIOMATEN, Middle East Technical University; Ankara Turkey
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Selcan Gungor-Ozkerim P, Balkan T, Kose GT, Sezai Sarac A, Kok FN. Incorporation of growth factor loaded microspheres into polymeric electrospun nanofibers for tissue engineering applications. J Biomed Mater Res A 2013; 102:1897-908. [DOI: 10.1002/jbm.a.34857] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 05/31/2013] [Accepted: 06/25/2013] [Indexed: 11/09/2022]
Affiliation(s)
- P. Selcan Gungor-Ozkerim
- Molecular Biology-Genetics and Biotechnology Program; Istanbul Technical University; MOBGAM Istanbul 34469 Turkey
| | - Timucin Balkan
- Istanbul Technical University; Department of Chemistry & Polymer Science and Technology; Istanbul 34469 Turkey
| | - Gamze T. Kose
- Yeditepe University; Department of Genetics and Bioengineering; Istanbul 34755 Turkey
- BIOMATEN Center of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University; Ankara Turkey
| | - A. Sezai Sarac
- Istanbul Technical University; Department of Chemistry & Polymer Science and Technology; Istanbul 34469 Turkey
| | - Fatma N. Kok
- Molecular Biology-Genetics and Biotechnology Program; Istanbul Technical University; MOBGAM Istanbul 34469 Turkey
- BIOMATEN Center of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University; Ankara Turkey
- Istanbul Technical University; Molecular Biology and Genetics Department; Istanbul 34469 Turkey
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Ahola N, Veiranto M, Rich J, Efimov A, Hannula M, Seppälä J, Kellomäki M. Hydrolytic degradation of composites of poly(L-lactide-co-epsilon-caprolactone) 70/30 and β-tricalcium phosphate. J Biomater Appl 2012; 28:529-43. [PMID: 23048066 DOI: 10.1177/0885328212462258] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
There is an increasing need for synthetic bone substitute materials that decrease the need for allografts and autografts. In this study, composites of β-tricalcium phosphate and a biodegradable poly(L-lactide-co-ε-caprolactone) were manufactured using extrusion to form biodegradable composites with high β-tricalcium phosphate contents for osteoconductivity. The hydrolytic degradation of the composites containing 0, 10, 20, 35 and 50% of β-tricalcium phosphate was studied in vitro for 52 weeks. During the study, it was observed that β-tricalcium phosphate did not have an effect on the degradation rate of the polymer matrix. However, the crystallinity of the materials increased throughout the test series and changes in glass transition temperatures were also observed as the comonomer ratio of the polymer matrix changed as the degradation proceeded. The results show that the materials have desirable degradation properties and, thus, possess great potential as bioabsorbable and osteoconductive bone filling materials.
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Affiliation(s)
- Niina Ahola
- 1Department of Biomedical Engineering, Tampere University of Technology, Tampere, Finland
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22
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Raucci MG, Guarino V, Ambrosio L. Biomimetic strategies for bone repair and regeneration. J Funct Biomater 2012; 3:688-705. [PMID: 24955638 PMCID: PMC4030995 DOI: 10.3390/jfb3030688] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 08/30/2012] [Accepted: 08/31/2012] [Indexed: 11/16/2022] Open
Abstract
The osseointegration rate of implants is related to their composition and surface roughness. Implant roughness favors both bone anchoring and biomechanical stability. Osteoconductive calcium phosphate (Ca-P) coatings promote bone healing and apposition, leading to the rapid biological fixation of implants. It has been clearly shown in many publications that Ca-P coating accelerates bone formation around the implant. This review discusses two main routes for the manufacturing of polymer-based osteoconductive scaffolds for tissue engineering, namely the incorporation of bioceramic particles in the scaffold and the coating of a scaffold with a thin layer of apatite through a biomimetic process.
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Affiliation(s)
- Maria G Raucci
- Institute of Composite and Biomedical Materials, National Research Council of Italy, P.le Tecchio 80, Naples 80125, Italy.
| | - Vincenzo Guarino
- Institute of Composite and Biomedical Materials, National Research Council of Italy, P.le Tecchio 80, Naples 80125, Italy.
| | - Luigi Ambrosio
- Institute of Composite and Biomedical Materials, National Research Council of Italy, P.le Tecchio 80, Naples 80125, Italy.
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Guarino V, Urciuolo F, Alvarez-Perez MA, Mele B, Netti PA, Ambrosio L. Osteogenic differentiation and mineralization in fibre-reinforced tubular scaffolds: theoretical study and experimental evidences. J R Soc Interface 2012; 9:2201-12. [PMID: 22399788 PMCID: PMC3405741 DOI: 10.1098/rsif.2011.0913] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Accepted: 02/17/2012] [Indexed: 11/12/2022] Open
Abstract
The development of composite scaffolds with well-organized architecture and multi-scale properties (i.e. porosity, degradation) represents a valid approach for achieving a tissue-engineered construct capable of reproducing the medium- and long-term in vitro behaviour of hierarchically complex tissues such as spongy bone. To date, the implementation of scaffold design strategies able to summarize optimal scaffold architecture as well as intrinsic mechanical, chemical and fluid transport properties still remains a challenging issue. In this study, poly ε-caprolactone/polylactid acid (PCL/PLA) tubular devices (fibres of PLA in a PCL matrix) obtained by phase inversion/salt leaching and filament winding techniques were proposed as cell instructive scaffold for bone osteogenesis. Continuous fibres embedded in the polymeric matrix drastically improved the mechanical response as confirmed by compression elastic moduli, which vary from 0.214 ± 0.065 to 1.174 ± 0.143 MPa depending on the relative fibre/matrix and polymer/solvent ratios. Moreover, computational fluid dynamic simulations demonstrated the ability of composite structure to transfer hydrodynamic forces during in vitro culture, thus indicating the optimal flow rate conditions that, case by case, enables specific cellular events-i.e. osteoblast differentiation from human mesenchymal stem cells (hMSCs), mineralization, etc. Hence, we demonstrate that the hMSC differentiation preferentially occurs in the case of higher perfusion rates-over 0.05 ml min(-1)-as confirmed by the expression of alkaline phosphate and osteocalcin markers. In particular, the highest osteopontin values and a massive mineral phase precipitation of bone-like phases detected in the case of intermediate flow rates (i.e. 0.05 ml min(-1)) allows us to identify the best condition to stimulate the bone extracellular matrix in-growth, in agreement with the hydrodynamic model prediction. All these results concur to prove the succesful use of tubular composite as temporary device for long bone treatment.
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Affiliation(s)
- Vincenzo Guarino
- Institute of Composite and Biomedical Materials, National Research Council of Italy, Naples, Italy.
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Design of Porous Three-Dimensional PDLLA/nano-hap Composite Scaffolds Using Stereolithography. J Appl Biomater Funct Mater 2012; 10:249-58. [DOI: 10.5301/jabfm.2012.10211] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2012] [Indexed: 01/18/2023] Open
Abstract
Purpose The stereolithography process is based on the photopolymerization through a dynamic mask generator of successive layers of photocurable resin, allowing the manufactory of accurate micro objects with high aspect ratio and curved surfaces. In the present work the stereolithography technique is applied to produce nanocomposite bioactive scaffolds from Computer Assisted Design (CAD) files. Methods Porous scaffolds are designed with computer software and built with a composite poly(D,L-lactide)/nano hydroxyapatite based resin. Triply-periodic minimal surfaces are shown to be a more versatile source of biomorphic scaffold designs and scaffolds with Double Gyroid architecture are realized and characterized from morphological, mechanical and biological point of view. Results The structures show excellent reproduction of the design and good mechanical properties. Human marrow mesenchimal cells (hMSC) are seeded onto porous PDLLA composites for 3 weeks and cultured in osteogenic medium. Presence of nano-hap seems to increase the mechanical properties without affecting the morphology of the structures. The composite Double Gyroid scaffolds exhibit good biocompatibility and confirm that nano-hap enhances the scaffold bioactive and os-teoconductive potential. Conclusion The presented technology and materials enable an accurate preparation of tissue engineering composite scaffolds with a large freedom of design, and really complex internal architectures. Results indicate that the scaffolds fulfill the basic requirements of bone tissue engineering scaffold, and have the potential to be applied in orthopedic surgery.
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Borzacchiello A, Gloria A, Mayol L, Dickinson S, Miot S, Martin I, Ambrosio L. Natural/synthetic porous scaffold designs and properties for fibro-cartilaginous tissue engineering. J BIOACT COMPAT POL 2011. [DOI: 10.1177/0883911511420149] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The goal of this study was to produce and characterize the scaffolds by combining the advantages of both natural and synthetic polymers for engineering fibro-cartilaginous tissues. Porous three-dimensional composite scaffolds were produced based on glycosaminoglycans and hyaluronic acid (HYAFF11) reinforced with polycaprolactone. The mechanical properties of scaffolds were evaluated as a function of time and compared with those of scaffolds seeded with human chondrocytes (constructs) and cultured in vitro up to 6 weeks. The composite scaffolds had a porosity of 68% with interconnected macropores with average pore sizes of 200 μm, an equilibrium swelling of 350%, and a predominant elastic behavior, typical of a macromolecular gel. The composite constructs maintained chondrocyte phenotype and degraded with the deposition of macromolecules synthesized by the cells. The scaffold presented mechanical properties and the ability to dissipate energy similar to the fibro-cartilaginous tissue.
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Affiliation(s)
- A. Borzacchiello
- Institute of Composite and Biomedical Materials-C.N.R and Interdisciplinary Research Centre on Biomaterials-University of Naples “Federico II” Piazzale Tecchio 80, 80125 Naples, Italy,
| | - A. Gloria
- Institute of Composite and Biomedical Materials-C.N.R and Interdisciplinary Research Centre on Biomaterials-University of Naples “Federico II” Piazzale Tecchio 80, 80125 Naples, Italy
| | - L. Mayol
- School of Biotechnological Sciences, Department of Pharmaceutical and Toxicological Chemistry, University of Naples, Federico , Via D. Montesano 49, 80131 Naples, Italy
| | - Sally Dickinson
- Department of Cellular & Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK
| | - S. Miot
- Departments of Surgery and of Biomedicine, University Hospital Basel, Switzerland
| | - I. Martin
- Departments of Surgery and of Biomedicine, University Hospital Basel, Switzerland
| | - L. Ambrosio
- Institute of Composite and Biomedical Materials-C.N.R and Interdisciplinary Research Centre on Biomaterials-University of Naples “Federico II” Piazzale Tecchio 80, 80125 Naples, Italy
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Ulery BD, Nair LS, Laurencin CT. Biomedical Applications of Biodegradable Polymers. JOURNAL OF POLYMER SCIENCE. PART B, POLYMER PHYSICS 2011; 49:832-864. [PMID: 21769165 PMCID: PMC3136871 DOI: 10.1002/polb.22259] [Citation(s) in RCA: 1179] [Impact Index Per Article: 90.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Utilization of polymers as biomaterials has greatly impacted the advancement of modern medicine. Specifically, polymeric biomaterials that are biodegradable provide the significant advantage of being able to be broken down and removed after they have served their function. Applications are wide ranging with degradable polymers being used clinically as surgical sutures and implants. In order to fit functional demand, materials with desired physical, chemical, biological, biomechanical and degradation properties must be selected. Fortunately, a wide range of natural and synthetic degradable polymers has been investigated for biomedical applications with novel materials constantly being developed to meet new challenges. This review summarizes the most recent advances in the field over the past 4 years, specifically highlighting new and interesting discoveries in tissue engineering and drug delivery applications.
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Affiliation(s)
- Bret D. Ulery
- Department of Orthopaedic Surgery, New England Musculoskeletal Institute, University of Connecticut Health Center, Farmington, Connecticut 06030
- Institute of Regenerative Engineering, University of Connecticut Health Center, Farmington, Connecticut 06030
| | - Lakshmi S. Nair
- Department of Orthopaedic Surgery, New England Musculoskeletal Institute, University of Connecticut Health Center, Farmington, Connecticut 06030
- Institute of Regenerative Engineering, University of Connecticut Health Center, Farmington, Connecticut 06030
- Department of Chemical, Materials & Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06268
| | - Cato T. Laurencin
- Department of Orthopaedic Surgery, New England Musculoskeletal Institute, University of Connecticut Health Center, Farmington, Connecticut 06030
- Institute of Regenerative Engineering, University of Connecticut Health Center, Farmington, Connecticut 06030
- Department of Chemical, Materials & Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06268
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Bianco A, Bozzo BM, Del Gaudio C, Cacciotti I, Armentano I, Dottori M, D'Angelo F, Martino S, Orlacchio A, Kenny JM. Poly (L-lactic acid)/calcium-deficient nanohydroxyapatite electrospun mats for bone marrow stem cell cultures. J BIOACT COMPAT POL 2011. [DOI: 10.1177/0883911511406250] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Electrospinning of bioresorbable polymers is a promising and valuable scaffolding technique. To improve its potential applications, the addition of specific fillers has been considered. This paper reports the fabrication of electrospun poly(L-lactic acid)/Ca-deficient-hydroxyapatite (PLLA/dHAp) mats, the content of nanosized d-HAp ranged between 1 and 8 wt%. All samples consisted of micrometric and submicrometric fibers, comprising 2D voids of 8 and 13 µm for PLLA and PLLA/d-HAp mats, respectively. The surface of the electrospun fibers was characterized by an uniform distribution of nanopores. Hybrid mats loaded with 1 wt% d-HAp showed the most homogeneous microstructure, differently from the mats loaded with 4 and 8 wt% d-HAp due to the presence of microagglomerates. The viscoelastic properties of PLLA/d-HAp hybrids were characterized by a decreasing trend of the storage modulus with increases in the nanofiller content. The microstructure, viscoelastic behavior, and cytocompatibility were investigated using murine bone marrow mesenchymal stem cells. On the basis of the biological data, the electrospun PLLA and PLLA/d-HAp mats can be regarded as potential scaffolds for bone marrow mesenchymal stem cells culture.
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Affiliation(s)
- Alessandra Bianco
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma 'Tor Vergata' , Via della Ricerca Scientifica, 00133 Roma (Italy)-UdR INSTM Roma Tor Vergata,
| | - Barbara Marida Bozzo
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma 'Tor Vergata ', Via della Ricerca Scientifica, 00133 Roma (Italy)-UdR INSTM Roma Tor Vergata
| | - Costantino Del Gaudio
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma 'Tor Vergata' , Via della Ricerca Scientifica, 00133 Roma (Italy)-UdR INSTM Roma Tor Vergata
| | - Ilaria Cacciotti
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma 'Tor Vergata' , Via della Ricerca Scientifica, 00133 Roma (Italy)-UdR INSTM Roma Tor Vergata
| | - Ilaria Armentano
- Materials Science and Technology Center, UdR INSTM, NIPLAB, University of Perugia, strada di Pentima 4, 05100, Terni, Italy
| | - Mariaserena Dottori
- National Institute Biostructures and Biosystems, INBB at Material Science and Technology Center, University of Perugia, strada di Pentima 4, 05100, Terni, Italy
| | - Francesco D'Angelo
- University of Perugia, Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Via del Giochetto, 06126 Perugia, Italy
| | - Sabata Martino
- University of Perugia, Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Via del Giochetto, 06126 Perugia, Italy
| | - Aldo Orlacchio
- University of Perugia, Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Via del Giochetto, 06126 Perugia, Italy
| | - Josè Maria Kenny
- Materials Science and Technology Center, UdR INSTM, NIPLAB, University of Perugia, strada di Pentima 4, 05100, Terni, Italy, Institute of Polymer Science and Technology, CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
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Arvidson K, Abdallah BM, Applegate LA, Baldini N, Cenni E, Gomez-Barrena E, Granchi D, Kassem M, Konttinen YT, Mustafa K, Pioletti DP, Sillat T, Finne-Wistrand A. Bone regeneration and stem cells. J Cell Mol Med 2011; 15:718-46. [PMID: 21129153 PMCID: PMC3922662 DOI: 10.1111/j.1582-4934.2010.01224.x] [Citation(s) in RCA: 260] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2010] [Accepted: 11/02/2010] [Indexed: 12/16/2022] Open
Abstract
This invited review covers research areas of central importance for orthopaedic and maxillofacial bone tissue repair, including normal fracture healing and healing problems, biomaterial scaffolds for tissue engineering, mesenchymal and foetal stem cells, effects of sex steroids on mesenchymal stem cells, use of platelet-rich plasma for tissue repair, osteogenesis and its molecular markers. A variety of cells in addition to stem cells, as well as advances in materials science to meet specific requirements for bone and soft tissue regeneration by addition of bioactive molecules, are discussed.
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Affiliation(s)
- K Arvidson
- Department of Clinical Dentistry, Center for Clinical Resarch, Faculty of Medicine and Dentistry, University of Bergen, Bergen, Norway.
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Abstract
One of the major challenges for bone tissue engineering is the production of a suitable scaffold material. In this review the currently available composite material options are considered and the methods of production and assessing the scaffolds are also discussed. The production routes range from the use of porogens to produce the porosity through to controlled deposition methods. The testing regimes include mechanical testing of the produced materials through to in vivo testing of the scaffolds. While the ideal scaffold material has not yet been produced, progress is being made.
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Affiliation(s)
- K E Tanner
- School of Engineering, James Watt South Building, University of Glasgow, Glasgow G12 8QQ, UK.
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30
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Biodegradable Polymeric Assemblies for Biomedical Materials. POLYMERS IN NANOMEDICINE 2011. [DOI: 10.1007/12_2011_160] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Prabhakaran MP, Venugopal J, Ghasemi-Mobarakeh L, Kai D, Jin G, Ramakrishna S. Stem Cells and Nanostructures for Advanced Tissue Regeneration. BIOMEDICAL APPLICATIONS OF POLYMERIC NANOFIBERS 2011. [DOI: 10.1007/12_2011_113] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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32
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Polymer Scaffolds for Bone Tissue Regeneration. ACTIVE IMPLANTS AND SCAFFOLDS FOR TISSUE REGENERATION 2011. [DOI: 10.1007/8415_2010_59] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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33
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Wong VW, Rustad KC, Galvez MG, Neofytou E, Neofyotou E, Glotzbach JP, Januszyk M, Major MR, Sorkin M, Longaker MT, Rajadas J, Gurtner GC. Engineered pullulan-collagen composite dermal hydrogels improve early cutaneous wound healing. Tissue Eng Part A 2010; 17:631-44. [PMID: 20919949 DOI: 10.1089/ten.tea.2010.0298] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
New strategies for skin regeneration are needed to address the significant medical burden caused by cutaneous wounds and disease. In this study, pullulan-collagen composite hydrogel matrices were fabricated using a salt-induced phase inversion technique, resulting in a structured yet soft scaffold for skin engineering. Salt crystallization induced interconnected pore formation, and modification of collagen concentration permitted regulation of scaffold pore size. Hydrogel architecture recapitulated the reticular distribution of human dermal matrix while maintaining flexible properties essential for skin applications. In vitro, collagen hydrogel scaffolds retained their open porous architecture and viably sustained human fibroblasts and murine mesenchymal stem cells and endothelial cells. In vivo, hydrogel-treated murine excisional wounds demonstrated improved wound closure, which was associated with increased recruitment of stromal cells and formation of vascularized granulation tissue. In conclusion, salt-induced phase inversion techniques can be used to create modifiable pullulan-collagen composite dermal scaffolds that augment early wound healing. These novel biomatrices can potentially serve as a structured delivery template for cells and biomolecules in regenerative skin applications.
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Affiliation(s)
- Victor W Wong
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
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34
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Armentano I, Dottori M, Fortunati E, Mattioli S, Kenny J. Biodegradable polymer matrix nanocomposites for tissue engineering: A review. Polym Degrad Stab 2010. [DOI: 10.1016/j.polymdegradstab.2010.06.007] [Citation(s) in RCA: 482] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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35
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Moutos FT, Guilak F. Functional properties of cell-seeded three-dimensionally woven poly(epsilon-caprolactone) scaffolds for cartilage tissue engineering. Tissue Eng Part A 2010; 16:1291-301. [PMID: 19903085 DOI: 10.1089/ten.tea.2009.0480] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Articular cartilage possesses complex mechanical properties that provide healthy joints the ability to bear repeated loads and maintain smooth articulating surfaces over an entire lifetime. In this study, we utilized a fiber-reinforced composite scaffold designed to mimic the anisotropic, nonlinear, and viscoelastic biomechanical characteristics of native cartilage as the basis for developing functional tissue-engineered constructs. Three-dimensionally woven poly(epsilon-caprolactone) (PCL) scaffolds were encapsulated with a fibrin hydrogel, seeded with human adipose-derived stem cells, and cultured for 28 days in chondrogenic culture conditions. Biomechanical testing showed that PCL-based constructs exhibited baseline compressive and shear properties similar to those of native cartilage and maintained these properties throughout the culture period, while supporting the synthesis of a collagen-rich extracellular matrix. Further, constructs displayed an equilibrium coefficient of friction similar to that of native articular cartilage (mu(eq) approximately 0.1-0.3) over the prescribed culture period. Our findings show that three-dimensionally woven PCL-fibrin composite scaffolds can be produced with cartilage-like mechanical properties, and that these engineered properties can be maintained in culture while seeded stem cells regenerate a new, functional tissue construct.
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Affiliation(s)
- Franklin T Moutos
- Department of Surgery, Duke University Medical Center , Durham, NC, USA
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36
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Recombinant human serum albumin hydrogel as a novel drug delivery vehicle. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2010. [DOI: 10.1016/j.msec.2010.02.020] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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37
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Charles LF, Shaw MT, Olson JR, Wei M. Fabrication and mechanical properties of PLLA/PCL/HA composites via a biomimetic, dip coating, and hot compression procedure. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:1845-1854. [PMID: 20238147 DOI: 10.1007/s10856-010-4051-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2009] [Accepted: 03/01/2010] [Indexed: 05/28/2023]
Abstract
Currently, the bone-repair biomaterials market is dominated by high modulus metals and their alloys. The problem of stress-shielding, which results from elastic modulus mismatch between these metallic materials and natural bone, has stimulated increasing research into the development of polymer-ceramic composite materials that can more closely match the modulus of bone. In this study, we prepared poly(L: -lactic acid)/hydroxyapatite/poly(epsilon-caprolactone) (PLLA/HA/PCL) composites via a four-step process, which includes surface etching of the fiber, the deposition of the HA coating onto the PLLA fibers through immersion in simulated body fluid (SBF), PCL coating through a dip-coating process, and hot compression molding. The initial HA-coated PLLA fiber had a homogeneous and continuous coating with a gradient structure. The effects of HA: PCL ratio and molding temperature on flexural mechanical properties were studied and both were shown to be important to mechanical properties. Mechanical results showed that at low molding temperatures and up to an HA: PCL volume ratio of 1, the flexural strain decreased while the flexural modulus and strength increased. At higher mold temperatures with a lower viscosity of the PCL a HA: PCL ratio of 1.6 gave similar properties. The process successfully produced composites with flexural moduli near the lower range of bone. Such composites may have clinical use for load bearing bone fixation.
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Affiliation(s)
- L F Charles
- Department of Chemical, Materials, and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269, USA
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38
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Yildirim ED, Besunder R, Pappas D, Allen F, Güçeri S, Sun W. Accelerated differentiation of osteoblast cells on polycaprolactone scaffolds driven by a combined effect of protein coating and plasma modification. Biofabrication 2010; 2:014109. [DOI: 10.1088/1758-5082/2/1/014109] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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39
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Guarino V, Taddei P, Foggia MD, Fagnano C, Ciapetti G, Ambrosio L. The Influence of Hydroxyapatite Particles on In Vitro Degradation Behavior of Poly ɛ-Caprolactone–Based Composite Scaffolds. Tissue Eng Part A 2009; 15:3655-68. [DOI: 10.1089/ten.tea.2008.0543] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Vincenzo Guarino
- Institute of Composite and Biomedical Materials, National Research Council, Naples, Italy
| | - Paola Taddei
- Biochemistry Department “G. Moruzzi,” University of Bologna, Bologna, Italy
| | - Michele Di Foggia
- Biochemistry Department “G. Moruzzi,” University of Bologna, Bologna, Italy
| | - Concezio Fagnano
- Biochemistry Department “G. Moruzzi,” University of Bologna, Bologna, Italy
| | - Gabriela Ciapetti
- Laboratory for Pathophysiology of Orthopaedic Implants, Istituti Ortopedici Rizzoli, Bologna, Italy
| | - Luigi Ambrosio
- Institute of Composite and Biomedical Materials, National Research Council, Naples, Italy
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