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Teimouri A, Azadi M. β-Chitin/gelatin/nanohydroxyapatite composite scaffold prepared through freeze-drying method for tissue engineering applications. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1691-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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202
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Nerantzaki MC, Koliakou IG, Kaloyianni MG, Terzopoulou ZN, Siska EK, Karakassides MA, Boccaccini AR, Bikiaris DN. New N-(2-carboxybenzyl)chitosan composite scaffolds containing nanoTiO2or bioactive glass with enhanced cell proliferation for bone-tissue engineering applications. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1182913] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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203
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Teimouri A, Azadi M. Preparation and characterization of novel chitosan/nanodiopside/nanohydroxyapatite composite scaffolds for tissue engineering applications. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1180606] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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204
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Zang S, Jin L, Kang S, Hu X, Wang M, Wang J, Chen B, Peng B, Wang Q. Periodontal Wound Healing by Transplantation of Jaw Bone Marrow-Derived Mesenchymal Stem Cells in Chitosan/Anorganic Bovine Bone Carrier Into One-Wall Infrabony Defects in Beagles. J Periodontol 2016; 87:971-81. [PMID: 27153292 DOI: 10.1902/jop.2016.150504] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND This study aims to evaluate the performance of chitosan/anorganic bovine bone (C/ABB) scaffold seeded with human jaw bone marrow-derived mesenchymal stem cells (hJBMMSCs) in supporting the healing/repair of 1-wall critical-size periodontal defects. METHODS Physical properties of the C/ABB scaffold were compared with those of the chitosan scaffold. hJBMMSCs were obtained from healthy human alveolar bone during the extraction of third molar impacted teeth. One-wall (7 × 4 mm) infrabony defects were surgically created at the bilateral mandibular third premolars and first molars in six beagles. The defects were randomly assigned to six groups and implanted with different scaffolds: 1) chitosan (C) scaffold; 2) C scaffold with hJBMMSCs (C + cell); 3) C/ABB scaffold (C/ABB); 4) C/ABB scaffold with hJBMMSCs (C/ABB + cell); 5) ABB scaffold (ABB); and 6) open flap debridement (control). The animals were euthanized 8 weeks after surgery for histologic analysis. RESULTS The C/ABB scaffold had a porous structure and increased compressive strength. Both C/ABB and C/ABB + cell exhibited the newly formed cellular mixed-fiber cementum, woven/lamellar bone, and periodontal ligament. Cementum formation was significantly greater in group C/ABB + cell than in group C/ABB (2.64 ± 0.50 mm versus 0.91 ± 0.55 mm, P <0.05). For new bone (NB) height, group C/ABB + cell and C/ABB showed mean ± SD values of 2.83 ± 0.29 mm and 2.65 ± 0.52 mm and for NB area 8.89 ± 1.65 mm and 8.73 ± 1.94 mm(2), respectively. For NB (height and area), there was no significant difference between the two groups. CONCLUSIONS The combination of hJBMMSCs and C/ABB scaffolds could promote periodontal repair. Future studies are expected to further optimize the combination and lead to an ideal periodontal regeneration.
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Affiliation(s)
- Shengqi Zang
- Department of Periodontology, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China.,Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Lei Jin
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Shuai Kang
- Department of Periodontology, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Xin Hu
- Department of Periodontology, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Meng Wang
- Department of Periodontology, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Jinjin Wang
- Department of Periodontology, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Bo Chen
- Department of Operative Dentistry and Endodontics, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, School of Stomatology, Fourth Military Medical University
| | - Bo Peng
- Department of Periodontology, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Qintao Wang
- Department of Periodontology, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
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Vunain E, Mishra AK, Mamba BB. Dendrimers, mesoporous silicas and chitosan-based nanosorbents for the removal of heavy-metal ions: A review. Int J Biol Macromol 2016; 86:570-86. [DOI: 10.1016/j.ijbiomac.2016.02.005] [Citation(s) in RCA: 194] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 01/28/2016] [Accepted: 02/01/2016] [Indexed: 12/30/2022]
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206
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Saber-Samandari S, Saber-Samandari S, Kiyazar S, Aghazadeh J, Sadeghi A. In vitro evaluation for apatite-forming ability of cellulose-based nanocomposite scaffolds for bone tissue engineering. Int J Biol Macromol 2016; 86:434-42. [DOI: 10.1016/j.ijbiomac.2016.01.102] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/23/2016] [Accepted: 01/27/2016] [Indexed: 02/02/2023]
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207
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Bio-scaffolds produced from irradiated squid pen and crab chitosan with hydroxyapatite/β-tricalcium phosphate for bone-tissue engineering. Int J Biol Macromol 2016; 93:1446-1456. [PMID: 27126171 DOI: 10.1016/j.ijbiomac.2016.04.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 04/12/2016] [Accepted: 04/15/2016] [Indexed: 11/23/2022]
Abstract
In this study, bio-scaffolds have been developed using irradiated chitosan from different sources - squid pen (RS) and crab shell (RC) - with hydroxyapatite/β-tricalcium phosphate (HA/β-TCP) at a chitosan/HA/β-TCP ratio of 50/30/20. The bio-scaffolds were prepared at two different freezing temperature (-20°C and -80°C) followed by lyophilisation. To enhance the mechanical properties, the bio-scaffolds were cross-linked using sodium tripolyphosphate (TPP) followed by lyophilisation. The composition and morphology of the bio-scaffolds were characterized using XRD, SEM, TEM and μ-CT. The pore size of the porous scaffolds ranged from 90 to 220μm and the scaffolds had 70-80% porosity. The scaffolds had a water uptake ratio of more than 10, and a controlled biodegradation in the range of 30-40%. These results suggest that the physical and biological properties of chitosan-based bio-scaffolds can be a promising biomaterial for bone-tissue regeneration.
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208
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Goonoo N, Bhaw-Luximon A, Passanha P, Esteves SR, Jhurry D. Third generation poly(hydroxyacid) composite scaffolds for tissue engineering. J Biomed Mater Res B Appl Biomater 2016; 105:1667-1684. [PMID: 27080439 DOI: 10.1002/jbm.b.33674] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 03/10/2016] [Accepted: 03/20/2016] [Indexed: 12/13/2022]
Abstract
Bone tissue engineering based on scaffolds is quite a complex process as a whole gamut of criteria needs to be satisfied to promote cellular attachment, proliferation and differentiation: biocompatibility, right surface properties, adequate mechanical performance, controlled bioresorbability, osteoconductivity, angiogenic cues, and vascularization. Third generation scaffolds are more of composite types to maximize biological-mechanical-chemical properties. In the present review, our focus is on the performance of micro-organism-derived polyhydroxyalkanoates (PHAs)-polyhydroxybutyrate (PHB) and polyhydroxybutyrate-co-valerate (PHBV)-composite scaffolds with ceramics and natural polymers for tissue engineering applications with emphasis on bone tissue. We particularly emphasize on how material properties of the composites affect scaffold performance. PHA-based composites have demonstrated their biocompatibility with a range of tissues and their capacity to induce osteogenesis due to their piezoelectric properties. Electrospun PHB/PHBV fiber mesh in combination with human adipose tissue-derived stem cells (hASCs) were shown to improve vascularization in engineered bone tissues. For nerve and skin tissue engineering applications, natural polymers such as collagen and chitosan remain the gold standard but there is scope for development of scaffolds combining PHAs with other natural polymers which can address some of the limitations such as brittleness, lack of bioactivity and slow degradation rate presented by the latter. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1667-1684, 2017.
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Affiliation(s)
- Nowsheen Goonoo
- Centre for Biomedical and Biomaterials Research, University of Mauritius, MSIRI Building, Réduit, Mauritius
| | - Archana Bhaw-Luximon
- Centre for Biomedical and Biomaterials Research, University of Mauritius, MSIRI Building, Réduit, Mauritius
| | - Pearl Passanha
- Sustainable Environment Research Centre, Faculty of Computing, Engineering and Science, University of South Wales, Pontypridd, Wales, CF37 1DL, UK
| | - Sandra R Esteves
- Sustainable Environment Research Centre, Faculty of Computing, Engineering and Science, University of South Wales, Pontypridd, Wales, CF37 1DL, UK
| | - Dhanjay Jhurry
- Centre for Biomedical and Biomaterials Research, University of Mauritius, MSIRI Building, Réduit, Mauritius
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209
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Gerges I, Tamplenizza M, Lopa S, Recordati C, Martello F, Tocchio A, Ricotti L, Arrigoni C, Milani P, Moretti M, Lenardi C. Creep-resistant dextran-based polyurethane foam as a candidate scaffold for bone tissue engineering: Synthesis, chemico-physical characterization, and in vitro and in vivo biocompatibility. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1163565] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- I. Gerges
- Fondazione Filarete per le Bioscienze e l’innovazione, Milan, Italy
- Tensive s.r.l., Milan, Italy
| | - M. Tamplenizza
- Fondazione Filarete per le Bioscienze e l’innovazione, Milan, Italy
- Tensive s.r.l., Milan, Italy
| | - S. Lopa
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute, Milan, Italy
| | - C. Recordati
- Fondazione Filarete per le Bioscienze e l’innovazione, Milan, Italy
| | - F. Martello
- Fondazione Filarete per le Bioscienze e l’innovazione, Milan, Italy
- Tensive s.r.l., Milan, Italy
| | - A. Tocchio
- SEMM, European School of Molecular Medicine, Campus IFOM-IEO, Milano, Italy
| | - L. Ricotti
- The BioRobotics Institute, Scuola Superiore Sant’Anna, Pontedera, Italy
| | - C. Arrigoni
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute, Milan, Italy
| | - P. Milani
- Fondazione Filarete per le Bioscienze e l’innovazione, Milan, Italy
- CIMAINA, Dipartimento di Fisica, Università degli Studi di Milano, Milan, Italy
| | - M. Moretti
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute, Milan, Italy
- Regenerative Medicine Technologies Lab, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
- Swiss Institute of Regenerative Medicine (SIRM), Taverne, Switzerland
- Fondazione Cardiocentro Ticino, Lugano, Switzerland
| | - C. Lenardi
- Fondazione Filarete per le Bioscienze e l’innovazione, Milan, Italy
- CIMAINA, Dipartimento di Fisica, Università degli Studi di Milano, Milan, Italy
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Sharma C, Dinda AK, Potdar PD, Chou CF, Mishra NC. Fabrication and characterization of novel nano-biocomposite scaffold of chitosan-gelatin-alginate-hydroxyapatite for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 64:416-427. [PMID: 27127072 DOI: 10.1016/j.msec.2016.03.060] [Citation(s) in RCA: 152] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 02/26/2016] [Accepted: 03/19/2016] [Indexed: 01/19/2023]
Abstract
A novel nano-biocomposite scaffold was fabricated in bead form by applying simple foaming method, using a combination of natural polymers-chitosan, gelatin, alginate and a bioceramic-nano-hydroxyapatite (nHAp). This approach of combining nHAp with natural polymers to fabricate the composite scaffold, can provide good mechanical strength and biological property mimicking natural bone. Environmental scanning electron microscopy (ESEM) images of the nano-biocomposite scaffold revealed the presence of interconnected pores, mostly spread over the whole surface of the scaffold. The nHAp particulates have covered the surface of the composite matrix and made the surface of the scaffold rougher. The scaffold has a porosity of 82% with a mean pore size of 112±19.0μm. Swelling and degradation studies of the scaffold showed that the scaffold possesses excellent properties of hydrophilicity and biodegradability. Short term mechanical testing of the scaffold does not reveal any rupturing after agitation under physiological conditions, which is an indicative of good mechanical stability of the scaffold. In vitro cell culture studies by seeding osteoblast cells over the composite scaffold showed good cell viability, proliferation rate, adhesion and maintenance of osteoblastic phenotype as indicated by MTT assay, ESEM of cell-scaffold construct, histological staining and gene expression studies, respectively. Thus, it could be stated that the nano-biocomposite scaffold of chitosan-gelatin-alginate-nHAp has the paramount importance for applications in bone tissue-engineering in future regenerative therapies.
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Affiliation(s)
- Chhavi Sharma
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Roorkee, India.
| | - Amit Kumar Dinda
- Department of Molecular Medicine and Biology, Jaslok Hospital and Research Centre, Mumbai 400 026, India.
| | - Pravin D Potdar
- Department of Pathology, All India Institute of Medical Sciences, New Delhi 110029, India.
| | - Chia-Fu Chou
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan.
| | - Narayan Chandra Mishra
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Roorkee, India.
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211
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An overview of chitin or chitosan/nano ceramic composite scaffolds for bone tissue engineering. Int J Biol Macromol 2016; 93:1338-1353. [PMID: 27012892 DOI: 10.1016/j.ijbiomac.2016.03.041] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 03/03/2016] [Accepted: 03/20/2016] [Indexed: 01/06/2023]
Abstract
Chitin and chitosan based nanocomposite scaffolds have been widely used for bone tissue engineering. These chitin and chitosan based scaffolds were reinforced with nanocomponents viz Hydroxyapatite (HAp), Bioglass ceramic (BGC), Silicon dioxide (SiO2), Titanium dioxide (TiO2) and Zirconium oxide (ZrO2) to develop nanocomposite scaffolds. Plenty of works have been reported on the applications and characteristics of the nanoceramic composites however, compiling the work done in this field and presenting it in a single article is a thrust area. This review is written with an aim to fill this gap and focus on the preparations and applications of chitin or chitosan/nHAp, chitin or chitosan/nBGC, chitin or chitosan/nSiO2, chitin or chitosan/nTiO2 and chitin or chitosan/nZrO2 in the field of bone tissue engineering in detail. Many reports so far exemplify the importance of ceramics in bone regeneration. The effect of nanoceramics over native ceramics in developing composites, its role in osteogenesis etc. are the gist of this review.
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212
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Rath A, Mathesan S, Ghosh P. Nanomechanical characterization and molecular mechanism study of nanoparticle reinforced and cross-linked chitosan biopolymer. J Mech Behav Biomed Mater 2016; 55:42-52. [DOI: 10.1016/j.jmbbm.2015.10.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 10/05/2015] [Accepted: 10/12/2015] [Indexed: 12/20/2022]
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213
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Spray drying as a viable process to produce nano-hydroxyapatite/chitosan (n-HAp/CS) hybrid microparticles mimicking bone composition. ADV POWDER TECHNOL 2016. [DOI: 10.1016/j.apt.2016.02.010] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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214
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Effect of hydroxyapatite nano-particles on morphology, rheology and thermal behavior of poly(caprolactone)/chitosan blends. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:980-989. [DOI: 10.1016/j.msec.2015.10.076] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 10/02/2015] [Accepted: 10/23/2015] [Indexed: 12/31/2022]
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215
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Zhou Y, Gao HL, Shen LL, Pan Z, Mao LB, Wu T, He JC, Zou DH, Zhang ZY, Yu SH. Chitosan microspheres with an extracellular matrix-mimicking nanofibrous structure as cell-carrier building blocks for bottom-up cartilage tissue engineering. NANOSCALE 2016; 8:309-317. [PMID: 26610691 DOI: 10.1039/c5nr06876b] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Scaffolds for tissue engineering (TE) which closely mimic the physicochemical properties of the natural extracellular matrix (ECM) have been proven to advantageously favor cell attachment, proliferation, migration and new tissue formation. Recently, as a valuable alternative, a bottom-up TE approach utilizing cell-loaded micrometer-scale modular components as building blocks to reconstruct a new tissue in vitro or in vivo has been proved to demonstrate a number of desirable advantages compared with the traditional bulk scaffold based top-down TE approach. Nevertheless, micro-components with an ECM-mimicking nanofibrous structure are still very scarce and highly desirable. Chitosan (CS), an accessible natural polymer, has demonstrated appealing intrinsic properties and promising application potential for TE, especially the cartilage tissue regeneration. According to this background, we report here the fabrication of chitosan microspheres with an ECM-mimicking nanofibrous structure for the first time based on a physical gelation process. By combining this physical fabrication procedure with microfluidic technology, uniform CS microspheres (CMS) with controlled nanofibrous microstructure and tunable sizes can be facilely obtained. Especially, no potentially toxic or denaturizing chemical crosslinking agent was introduced into the products. Notably, in vitro chondrocyte culture tests revealed that enhanced cell attachment and proliferation were realized, and a macroscopic 3D geometrically shaped cartilage-like composite can be easily constructed with the nanofibrous CMS (NCMS) and chondrocytes, which demonstrate significant application potential of NCMS as the bottom-up cell-carrier components for cartilage tissue engineering.
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Affiliation(s)
- Yong Zhou
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, School of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, P. R. China.
| | - Huai-Ling Gao
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Li-Li Shen
- Department of Dental Implant Center, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei 230032, P. R. China.
| | - Zhao Pan
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Li-Bo Mao
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Tao Wu
- Department of Dental Implant Center, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei 230032, P. R. China.
| | - Jia-Cai He
- Department of Dental Implant Center, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei 230032, P. R. China.
| | - Duo-Hong Zou
- Department of Dental Implant Center, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei 230032, P. R. China.
| | - Zhi-Yuan Zhang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, School of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, P. R. China.
| | - Shu-Hong Yu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
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216
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Azadi M, Teimouri A, Mehranzadeh G. Preparation, characterization and biocompatible properties of β-chitin/silk fibroin/nanohydroxyapatite composite scaffolds prepared using a freeze-drying method. RSC Adv 2016. [DOI: 10.1039/c5ra22987a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
β-Chitin/silk fibroin/nanohydroxyapatite (CT/SF/nHAp) composite scaffolds were synthesized using a freeze-drying method by blending β-chitin hydrogel, silk fibroin and nHAp at different inorganic/organic weight ratios.
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217
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Ji J, Tong X, Huang X, Zhang J, Qin H, Hu Q. Patient-Derived Human Induced Pluripotent Stem Cells From Gingival Fibroblasts Composited With Defined Nanohydroxyapatite/Chitosan/Gelatin Porous Scaffolds as Potential Bone Graft Substitutes. Stem Cells Transl Med 2016; 5:95-105. [PMID: 26586776 PMCID: PMC4704877 DOI: 10.5966/sctm.2015-0139] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 10/07/2015] [Indexed: 12/19/2022] Open
Abstract
UNLABELLED Human embryonic stem cells and adult stem cells have always been the cell source for bone tissue engineering. However, their limitations are obvious, including ethical concerns and/or a short lifespan. The use of human induced pluripotent stem cells (hiPSCs) could avoid these problems. Nanohydroxyapatite (nHA) is an important component of natural bone and bone tissue engineering scaffolds. However, its regulation on osteogenic differentiation with hiPSCs from human gingival fibroblasts (hGFs) is unknown. The purpose of the present study was to investigate the osteogenic differentiation of hiPSCs from patient-derived hGFs regulated by nHA/chitosan/gelatin (HCG) scaffolds with different nHA ratios, such as HCG-111 (1 wt/vol% nHA) and HCG-311 (3 wt/vol% nHA). First, hGFs were reprogrammed into hiPSCs, which have enhanced osteogenic differentiation capability. Second, HCG-111 and HCG-311 scaffolds were successfully synthesized. Finally, hiPSC/HCG complexes were cultured in vitro or subcutaneously transplanted into immunocompromised mice in vivo. The osteogenic differentiation effects of two types of HCG scaffolds on hiPSCs were assessed for up to 12 weeks. The results showed that HCG-311 increased osteogenic-related gene expression of hiPSCs in vitro proved by quantitative real-time polymerase chain reaction, and hiPSC/HCG-311 complexes formed much bone-like tissue in vivo, indicated by cone-beam computed tomography imaging, H&E staining, Masson staining, and RUNX-2, OCN immunohistochemistry staining. In conclusion, our study has shown that osteogenic differentiation of hiPSCs from hGFs was improved by HCG-311. The mechanism might be that the nHA addition stimulates osteogenic marker expression of hiPSCs from hGFs. Our work has provided an innovative autologous cell-based bone tissue engineering approach with soft tissues such as clinically abundant gingiva. SIGNIFICANCE The present study focused on patient-personalized bone tissue engineering. Human induced pluripotent stem cells (hiPSCs) were established from clinically easily derived human gingival fibroblasts (hGFs) and defined nanohydroxyapatite/chitosan/gelatin (HCG) scaffolds. hiPSCs derived from hGFs had better osteogenesis capability than that of hGFs. More interestingly, osteogenic differentiation of hiPSCs from hGFs was elevated significantly when composited with HCG-311 scaffolds in vitro and in vivo. The present study has uncovered the important role of different nHA ratios in HCG scaffolds in osteogenesis induction of hiPSCs derived from hGFs. This technique could serve as a potential innovative approach for bone tissue engineering, especially large bone regeneration clinically.
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Affiliation(s)
- Jun Ji
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China Nanjing Key Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China
| | - Xin Tong
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China
| | - Xiaofeng Huang
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China
| | - Junfeng Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, People's Republic of China
| | - Haiyan Qin
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China Nanjing Key Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China
| | - Qingang Hu
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China
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218
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Cai B, Zou Q, Zuo Y, Li L, Yang B, Li Y. Fabrication and cell viability of injectable n-HA/chitosan composite microspheres for bone tissue engineering. RSC Adv 2016. [DOI: 10.1039/c6ra06594e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The n-HA/CS microspheres exhibit good properties while supporting cell growth, thus acting as a promising injectable matrix for bone tissue engineering.
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Affiliation(s)
- Bin Cai
- Research Center for Nano-Biomaterial
- Analytical & Testing Center
- Sichuan University
- Chengdu 610064
- China
| | - Qin Zou
- Research Center for Nano-Biomaterial
- Analytical & Testing Center
- Sichuan University
- Chengdu 610064
- China
| | - Yi Zuo
- Research Center for Nano-Biomaterial
- Analytical & Testing Center
- Sichuan University
- Chengdu 610064
- China
| | - Limei Li
- Research Center for Nano-Biomaterial
- Analytical & Testing Center
- Sichuan University
- Chengdu 610064
- China
| | - Boyuan Yang
- Research Center for Nano-Biomaterial
- Analytical & Testing Center
- Sichuan University
- Chengdu 610064
- China
| | - Yubao Li
- Research Center for Nano-Biomaterial
- Analytical & Testing Center
- Sichuan University
- Chengdu 610064
- China
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219
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Nivedhitha Sundaram M, Deepthi S, Jayakumar R. Chitosan-Gelatin Composite Scaffolds in Bone Tissue Engineering. SPRINGER SERIES ON POLYMER AND COMPOSITE MATERIALS 2016. [DOI: 10.1007/978-81-322-2511-9_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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220
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Bhowmick A, Mitra T, Gnanamani A, Das M, Kundu PP. Development of biomimetic nanocomposites as bone extracellular matrix for human osteoblastic cells. Carbohydr Polym 2015; 141:82-91. [PMID: 26876999 DOI: 10.1016/j.carbpol.2015.12.074] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 12/27/2015] [Accepted: 12/29/2015] [Indexed: 12/23/2022]
Abstract
Here, we have developed biomimetic nanocomposites containing chitosan, poly(vinyl alcohol) and nano-hydroxyapatite-zinc oxide as bone extracellular matrix for human osteoblastic cells and characterized by Fourier transform infrared spectroscopy, powder X-ray diffraction. Scanning electron microscopy images revealed interconnected macroporous structures. Moreover, in this study, the problem related to fabricating a porous composite with good mechanical strength has been resolved by incorporating 5wt% of nano-hydroxyapatite-zinc oxide into chitosan-poly(vinyl alcohol) matrix; the present composite showed high tensile strength (20.25MPa) while maintaining appreciable porosity (65.25%). These values are similar to human cancellous bone. These nanocomposites also showed superior water uptake, antimicrobial and biodegradable properties than the previously reported results. Compatibility with human blood and pH was observed, indicating nontoxicity of these materials to the human body. Moreover, proliferation of osteoblastic MG-63 cells onto the nanocomposites was also observed without having any negative effect.
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Affiliation(s)
- Arundhati Bhowmick
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India
| | - Tapas Mitra
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India
| | - Arumugam Gnanamani
- Microbiology Division, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, Tamil Nadu, India
| | - Manas Das
- Department of Chemical Engineering, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India
| | - Patit Paban Kundu
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India.
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221
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Demitri C, Raucci MG, Giuri A, De Benedictis VM, Giugliano D, Calcagnile P, Sannino A, Ambrosio L. Cellulose-based porous scaffold for bone tissue engineering applications: Assessment of hMSC proliferation and differentiation. J Biomed Mater Res A 2015; 104:726-733. [DOI: 10.1002/jbm.a.35611] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 10/30/2015] [Accepted: 10/30/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Christian Demitri
- Department of Engineering for Innovation; University of Salento; via Monteroni, Km 1 Lecce 73100 Italy
| | - Maria Grazia Raucci
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy Mostra D'oltremare Pad.20; Viale Kennedy 54 Naples 80125 Italy
| | - Antonella Giuri
- Department of Engineering for Innovation; University of Salento; via Monteroni, Km 1 Lecce 73100 Italy
| | | | - Daniela Giugliano
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy Mostra D'oltremare Pad.20; Viale Kennedy 54 Naples 80125 Italy
| | - Paola Calcagnile
- Department of Engineering for Innovation; University of Salento; via Monteroni, Km 1 Lecce 73100 Italy
| | - Alessandro Sannino
- Department of Engineering for Innovation; University of Salento; via Monteroni, Km 1 Lecce 73100 Italy
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy Mostra D'oltremare Pad.20; Viale Kennedy 54 Naples 80125 Italy
- Department of Chemical Sciences and Materials Technology; National Research Council of Italy (DSCTM-CNR); P.Le Aldo Moro 7 Rome 00185 Italy
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222
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Zhang S, Prabhakaran MP, Qin X, Ramakrishna S. Biocomposite scaffolds for bone regeneration: Role of chitosan and hydroxyapatite within poly-3-hydroxybutyrate-co-3-hydroxyvalerate on mechanical properties and in vitro evaluation. J Mech Behav Biomed Mater 2015; 51:88-98. [DOI: 10.1016/j.jmbbm.2015.06.032] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 06/25/2015] [Accepted: 06/27/2015] [Indexed: 10/23/2022]
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223
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Teimouri A, Azadi M, Emadi R, Lari J, Chermahini AN. Preparation, characterization, degradation and biocompatibility of different silk fibroin based composite scaffolds prepared by freeze-drying method for tissue engineering application. Polym Degrad Stab 2015. [DOI: 10.1016/j.polymdegradstab.2015.08.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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224
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Li L, Zuo Y, Zou Q, Yang B, Lin L, Li J, Li Y. Hierarchical Structure and Mechanical Improvement of an n-HA/GCO-PU Composite Scaffold for Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2015; 7:22618-29. [PMID: 26406396 DOI: 10.1021/acsami.5b07327] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
To improve the mechanical properties of bone tissue and achieve the desired bone tissue regeneration for orthopedic surgery, newly designed hydroxyapatite/polyurethane (HA/PU) porous scaffolds were developed via in situ polymerization. The results showed that the molecular modification of PU soft segments by glyceride of castor oil (GCO) can increase the scaffold compressive strength by 48% and the elastic modulus by 96%. When nano-HA (n-HA) particles were incorporated into the GCO-PU matrix, the compressive strength and elastic modulus further increased by 49 and 74%, from 2.91 to 4.34 MPa and from 95 to 165.36 MPa, respectively. The n-HA particles with fine dispersity not only improved the interface bonding with the GCO-PU matrix but also provided effective bioactivity for bonding with bone tissue. The hierarchical structure and mechanical quality of the n-HA/GCO-PU composite scaffold were determined to be appropriate for the growth of cells and the regeneration of bony tissues, demonstrating promising prospects for bone repair and regeneration.
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Affiliation(s)
- Limei Li
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University , Chengdu 610064, People's Republic of China
| | - Yi Zuo
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University , Chengdu 610064, People's Republic of China
| | - Qin Zou
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University , Chengdu 610064, People's Republic of China
| | - Boyuan Yang
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University , Chengdu 610064, People's Republic of China
| | - Lili Lin
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University , Chengdu 610064, People's Republic of China
| | - Jidong Li
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University , Chengdu 610064, People's Republic of China
| | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical & Testing Center, Sichuan University , Chengdu 610064, People's Republic of China
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225
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Rajesh R, Ravichandran YD. Development of a new carbon nanotube-alginate-hydroxyapatite tricomponent composite scaffold for application in bone tissue engineering. Int J Nanomedicine 2015; 10 Suppl 1:7-15. [PMID: 26491303 PMCID: PMC4599600 DOI: 10.2147/ijn.s79971] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
In recent times, tricomponent scaffolds prepared from naturally occurring polysaccharides, hydroxyapatite, and reinforcing materials have been gaining increased attention in the field of bone tissue engineering. In the current work, a tricomponent scaffold with an oxidized multiwalled carbon nanotube (fMWCNT)-alginate-hydroxyapatite with the required porosity was prepared for the first time by a freeze-drying method and characterized using analytical techniques. The hydroxyapatite for the scaffold was isolated from chicken bones by thermal calcination at 800°C. The Fourier transform infrared spectra and X-ray diffraction data confirmed ionic interactions and formation of the fMWCNT-alginate-hydroxyapatite scaffold. Interconnected porosity with a pore size of 130-170 µm was evident from field emission scanning electron microscopy. The total porosity calculated using the liquid displacement method was found to be 93.85%. In vitro biocompatibility and cell proliferation on the scaffold was checked using an MG-63 cell line by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay and cell attachment by Hoechst stain assay. In vitro studies showed better cell proliferation, cell differentiation, and cell attachment on the prepared scaffold. These results indicate that this scaffold could be a promising candidate for bone tissue engineering.
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Affiliation(s)
- Rajendiran Rajesh
- Organic Chemistry Division, School of Advanced Sciences, VIT University, Vellore, India
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226
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Production and characterization of chitosan/gelatin/β-TCP scaffolds for improved bone tissue regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 55:592-604. [DOI: 10.1016/j.msec.2015.05.072] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 05/09/2015] [Accepted: 05/28/2015] [Indexed: 02/01/2023]
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227
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Shavandi A, Bekhit AEDA, Sun Z, Ali A, Gould M. A novel squid pen chitosan/hydroxyapatite/β-tricalcium phosphate composite for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 55:373-83. [DOI: 10.1016/j.msec.2015.05.029] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 03/30/2015] [Accepted: 05/08/2015] [Indexed: 10/23/2022]
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228
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Kiechel MA, Beringer LT, Donius AE, Komiya Y, Habas R, Wegst UGK, Schauer CL. Osteoblast biocompatibility of premineralized, hexamethylene-1,6-diaminocarboxysulfonate crosslinked chitosan fibers. J Biomed Mater Res A 2015; 103:3201-11. [PMID: 25771925 PMCID: PMC4552608 DOI: 10.1002/jbm.a.35451] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 02/24/2015] [Accepted: 03/09/2015] [Indexed: 11/08/2022]
Abstract
Biopolymer-ceramic composites are thought to be particularly promising materials for bone tissue engineering as they more closely mimic natural bone. Here, we demonstrate the fabrication by electrospinning of fibrous chitosan-hydroxyapatite composite scaffolds with low (1 wt %) and high (10 wt %) mineral contents. Scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS) and unidirectional tensile testing were performed to determine fiber surface morphology, elemental composition, and tensile Young's modulus (E) and ultimate tensile strength (σUTS ), respectively. EDS scans of the scaffolds indicated that the fibers, crosslinked with either hexamethylene-1,6-diaminocarboxysulfonate (HDACS) or genipin, have a crystalline hydroxyapatite mineral content at 10 wt % additive. Moreover, FESEM micrographs showed that all electrospun fibers have diameters (122-249 nm), which fall within the range of those of fibrous collagen found in the extracellular matrix of bone. Young's modulus and ultimate tensile strength of the various crosslinked composite compositions were in the range of 116-329 MPa and 2-15 MPa, respectively. Osteocytes seeded onto the mineralized fibers were able to demonstrate good biocompatibility enhancing the potential use for this material in future bone tissue engineering applications.
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Affiliation(s)
- Marjorie A. Kiechel
- Department of Materials Science and Engineering, Drexel University, 3141 Chestnut St., Philadelphia, PA 19104
| | - Laura T. Beringer
- Department of Materials Science and Engineering, Drexel University, 3141 Chestnut St., Philadelphia, PA 19104
| | - Amalie E. Donius
- Department of Materials Science and Engineering, Drexel University, 3141 Chestnut St., Philadelphia, PA 19104
| | - Yuko Komiya
- Department of Biology, Temple University, 1900 North 12 Street, Philadelphia, PA 19122
| | - Raymond Habas
- Department of Biology, Temple University, 1900 North 12 Street, Philadelphia, PA 19122
| | - Ulrike G. K. Wegst
- Thayer School of Engineering, Dartmouth College, 14 Engineering Drive, Hanover, NH 03755
| | - Caroline L. Schauer
- Department of Materials Science and Engineering, Drexel University, 3141 Chestnut St., Philadelphia, PA 19104
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229
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Modrzejewska Z, Skwarczyńska A, Douglas T, Biniaś D, Maniukiewicz W, Sielski J. Structure of chitosan gels mineralized by sorption. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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230
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Guo M, Li X. Development of porous Ti6Al4V/chitosan sponge composite scaffold for orthopedic applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 58:1177-81. [PMID: 26478418 DOI: 10.1016/j.msec.2015.09.061] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 08/21/2015] [Accepted: 09/14/2015] [Indexed: 12/18/2022]
Abstract
A novel composite scaffold consisting of porous Ti6Al4V part filled with chitosan sponge was fabricated using a combination of electron beam melting and freeze-drying. The mechanical properties of porous Ti6Al4V part were examined via compressive test. The ultimate compressive strength was 85.35 ± 8.68 MPa and the compressive modulus was 2.26 ± 0.42 GPa. The microstructure of composite scaffold was characterized using scanning electron microscopy. The chitosan sponge filled in Ti6Al4V part exhibited highly porous and well-interconnected micro-pore architecture. The osteoblastic cells were seeded on scaffolds to test their seeding efficiency and biocompatibility. Significantly higher cell seeding efficiency was found on composite scaffold. The biological response of osteoblasts on composite scaffolds was superior in terms of improved cell attachment, higher proliferation, and well-spread morphology in relation to porous Ti6Al4V part. These results suggest that the Ti6Al4V/chitosan composite scaffold is potentially useful as a biomedical scaffold for orthopedic applications.
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Affiliation(s)
- Miao Guo
- College of Life Information Science & Instrument Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Xiang Li
- School of Mechanical Engineering, Shanghai Jiao Tong University, State Key Laboratory of Mechanical System and Vibration, Shanghai 200240, China.
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231
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Qasim SB, Delaine-Smith RM, Fey T, Rawlinson A, Rehman IU. Freeze gelated porous membranes for periodontal tissue regeneration. Acta Biomater 2015; 23:317-328. [PMID: 25968357 DOI: 10.1016/j.actbio.2015.05.001] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Revised: 04/02/2015] [Accepted: 05/04/2015] [Indexed: 01/12/2023]
Abstract
Guided tissue regeneration (GTR) membranes have been used for the management of destructive forms of periodontal disease as a means of aiding regeneration of lost supporting tissues, including the alveolar bone, cementum, gingiva and periodontal ligaments (PDL). Currently available GTR membranes are either non-biodegradable, requiring a second surgery for removal, or biodegradable. The mechanical and biofunctional limitations of currently available membranes result in a limited and unpredictable treatment outcome in terms of periodontal tissue regeneration. In this study, porous membranes of chitosan (CH) were fabricated with or without hydroxyapatite (HA) using the simple technique of freeze gelation (FG) via two different solvents systems, acetic acid (ACa) or ascorbic acid (ASa). The aim was to prepare porous membranes to be used for GTR to improve periodontal regeneration. FG membranes were characterized for ultra-structural morphology, physiochemical properties, water uptake, degradation, mechanical properties, and biocompatibility with mature and progenitor osteogenic cells. Fourier transform infrared (FTIR) spectroscopy confirmed the presence of hydroxyapatite and its interaction with chitosan. μCT analysis showed membranes had 85-77% porosity. Mechanical properties and degradation rate were affected by solvent type and the presence of hydroxyapatite. Culture of human osteosarcoma cells (MG63) and human embryonic stem cell-derived mesenchymal progenitors (hES-MPs) showed that all membranes supported cell proliferation and long term matrix deposition was supported by HA incorporated membranes. These CH and HA composite membranes show their potential use for GTR applications in periodontal lesions and in addition FG membranes could be further tuned to achieve characteristics desirable of a GTR membrane for periodontal regeneration.
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232
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Bio-mimetic composite scaffold from mussel shells, squid pen and crab chitosan for bone tissue engineering. Int J Biol Macromol 2015; 80:445-54. [DOI: 10.1016/j.ijbiomac.2015.07.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 07/02/2015] [Accepted: 07/08/2015] [Indexed: 11/24/2022]
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233
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Kim HL, Jung GY, Yoon JH, Han JS, Park YJ, Kim DG, Zhang M, Kim DJ. Preparation and characterization of nano-sized hydroxyapatite/alginate/chitosan composite scaffolds for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 54:20-5. [DOI: 10.1016/j.msec.2015.04.033] [Citation(s) in RCA: 146] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 02/17/2015] [Accepted: 04/21/2015] [Indexed: 10/23/2022]
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234
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Aryaei A, Liu J, Jayatissa AH, Jayasuriya AC. Cross-linked chitosan improves the mechanical properties of calcium phosphate-chitosan cement. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 54:14-9. [PMID: 26046262 PMCID: PMC4466097 DOI: 10.1016/j.msec.2015.04.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 02/26/2015] [Accepted: 04/21/2015] [Indexed: 12/16/2022]
Abstract
Calcium phosphate (CaP) cements are highly applicable and valuable materials for filling bone defects by minimally invasive procedures. The chitosan (CS) biopolymer is also considered as one of the promising biomaterial candidates in bone tissue engineering. In the present study, some key features of CaP-CS were significantly improved by developing a novel CaP-CS composite. For this purpose, CS was the first cross-linked with tripolyphosphate (TPP) and then mixed with CaP matrix. A group of CaP-CS samples without cross-linking was also prepared. Samples were fabricated and tested based on the known standards. Additionally, the effect of different powder (P) to liquid (L) ratios was also investigated. Both cross-linked and uncross-linked CaP-CS samples showed excellent washout resistance. The most significant effects were observed on Young's modulus and compressive strength in wet condition as well as surface hardness. In dry conditions, the Young's modulus of cross-linked samples was slightly improved. Based on the presented results, cross-linking does not have a significant effect on porosity. As expected, by increasing the P/L ratio of a sample, ductility and injectability were decreased. However, in the most cases, mechanical properties were enhanced. The results have shown that cross-linking can improve the mechanical properties of CaP-CS and hence it can be used for bone tissue engineering applications.
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Affiliation(s)
- Ashkan Aryaei
- Department of Mechanical Engineering, University of Toledo, Toledo, OH 43606, USA
| | - Jason Liu
- School of Medicine, University of Toledo, OH 43614, USA
| | | | - A Champa Jayasuriya
- Department of Orthopaedic Surgery, University of Toledo, Toledo, OH 43614, USA.
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235
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Dorozhkin SV. Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications. J Funct Biomater 2015; 6:708-832. [PMID: 26262645 PMCID: PMC4598679 DOI: 10.3390/jfb6030708] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/31/2015] [Accepted: 08/01/2015] [Indexed: 12/30/2022] Open
Abstract
The state-of-the-art on calcium orthophosphate (CaPO4)-containing biocomposites and hybrid biomaterials suitable for biomedical applications is presented. Since these types of biomaterials offer many significant and exciting possibilities for hard tissue regeneration, this subject belongs to a rapidly expanding area of biomedical research. Through the successful combinations of the desired properties of matrix materials with those of fillers (in such systems, CaPO4 might play either role), innovative bone graft biomaterials can be designed. Various types of CaPO4-based biocomposites and hybrid biomaterials those are either already in use or being investigated for biomedical applications are extensively discussed. Many different formulations in terms of the material constituents, fabrication technologies, structural and bioactive properties, as well as both in vitro and in vivo characteristics have been already proposed. Among the others, the nano-structurally controlled biocomposites, those containing nanodimensional compounds, biomimetically fabricated formulations with collagen, chitin and/or gelatin, as well as various functionally graded structures seem to be the most promising candidates for clinical applications. The specific advantages of using CaPO4-based biocomposites and hybrid biomaterials in the selected applications are highlighted. As the way from a laboratory to a hospital is a long one and the prospective biomedical candidates have to meet many different necessities, the critical issues and scientific challenges that require further research and development are also examined.
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236
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Yunus Basha R, Sampath Kumar TS, Doble M. Design of biocomposite materials for bone tissue regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 57:452-63. [PMID: 26354284 DOI: 10.1016/j.msec.2015.07.016] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 05/24/2015] [Accepted: 07/09/2015] [Indexed: 02/06/2023]
Abstract
Several synthetic scaffolds are being developed using polymers, ceramics and their composites to overcome the limitations of auto- and allografts. Polymer-ceramic composites appear to be the most promising bone graft substitute since the natural bone itself is a composite of collagen and hydroxyapatite. Ceramics provide strength and osteoconductivity to the scaffold while polymers impart flexibility and resorbability. Natural polymers have an edge over synthetic polymers because of their biocompatibility and biological recognition property. But, very few natural polymer-ceramic composites are available as commercial products, and those few are predominantly based on type I collagen. Disadvantages of using collagen include allergic reactions and pathogen transmission. The commercial products also lack sufficient mechanical properties. This review summarizes the recent developments of biocomposite materials as bone scaffolds to overcome these drawbacks. Their characteristics, in vitro and in vivo performance are discussed with emphasis on their mechanical properties and ways to improve their performance.
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Affiliation(s)
- Rubaiya Yunus Basha
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai 600036, India
| | - T S Sampath Kumar
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai 600036, India
| | - Mukesh Doble
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai 600036, India.
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237
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Haaparanta AM, Uppstu P, Hannula M, Ellä V, Rosling A, Kellomäki M. Improved dimensional stability with bioactive glass fibre skeleton in poly(lactide-co-glycolide) porous scaffolds for tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 56:457-66. [PMID: 26249615 DOI: 10.1016/j.msec.2015.07.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 06/01/2015] [Accepted: 07/09/2015] [Indexed: 11/17/2022]
Abstract
Bone tissue engineering requires highly porous three-dimensional (3D) scaffolds with preferable osteoconductive properties, controlled degradation, and good dimensional stability. In this study, highly porous 3D poly(d,l-lactide-co-glycolide) (PLGA) - bioactive glass (BG) composites (PLGA/BG) were manufactured by combining highly porous 3D fibrous BG mesh skeleton with porous PLGA in a freeze-drying process. The 3D structure of the scaffolds was investigated as well as in vitro hydrolytic degradation for 10weeks. The effect of BG on the dimensional stability, scaffold composition, pore structure, and degradation behaviour of the scaffolds was evaluated. The composites showed superior pore structure as the BG fibres inhibited shrinkage of the scaffolds. The BG was also shown to buffer the acidic degradation products of PLGA. These results demonstrate the potential of these PLGA/BG composites for bone tissue engineering, but the ability of this kind of PLGA/BG composites to promote bone regeneration will be studied in forthcoming in vivo studies.
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Affiliation(s)
- Anne-Marie Haaparanta
- Department of Electronics and Communications Engineering, Tampere University of Technology, Korkeakoulunkatu 3, 33720 Tampere, Finland; BioMediTech, Institute of Biosciences and Medical Technology, Biokatu 10, 33520 Tampere, Finland.
| | - Peter Uppstu
- Laboratory of Polymer Technology, Centre of Excellence in Functional Materials at Biological Interfaces, Åbo Akademi University, Biskopsgatan 8, 20500 Åbo, Finland.
| | - Markus Hannula
- Department of Electronics and Communications Engineering, Tampere University of Technology, Korkeakoulunkatu 3, 33720 Tampere, Finland; BioMediTech, Institute of Biosciences and Medical Technology, Biokatu 10, 33520 Tampere, Finland.
| | - Ville Ellä
- Department of Electronics and Communications Engineering, Tampere University of Technology, Korkeakoulunkatu 3, 33720 Tampere, Finland; BioMediTech, Institute of Biosciences and Medical Technology, Biokatu 10, 33520 Tampere, Finland.
| | - Ari Rosling
- Laboratory of Polymer Technology, Centre of Excellence in Functional Materials at Biological Interfaces, Åbo Akademi University, Biskopsgatan 8, 20500 Åbo, Finland.
| | - Minna Kellomäki
- Department of Electronics and Communications Engineering, Tampere University of Technology, Korkeakoulunkatu 3, 33720 Tampere, Finland; BioMediTech, Institute of Biosciences and Medical Technology, Biokatu 10, 33520 Tampere, Finland.
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238
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Development and characterization of hydroxyapatite/β-TCP/chitosan composites for tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 56:481-93. [PMID: 26249618 DOI: 10.1016/j.msec.2015.07.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 05/18/2015] [Accepted: 07/08/2015] [Indexed: 11/22/2022]
Abstract
Calcium phosphate ceramics that mimic bone composition provide interesting possibilities for the advancement in bone tissue engineering. The present study reports on a chitosan composite reinforced by hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP) obtained from waste mussel shells and cross-linked using tripolyphosphate (TPP). The ratios of the ceramic components in composites were 20/10/70, 30/20/50 and 40/30/30 (HA/β-TCP/CH, w/w %). Biodegradation rate, structural properties and in-vitro degradation of the bone-like composite scaffolds were investigated. The optimum amount of TPP required for composite was 2.5% and glycerol was used as plasticizer at an optimized concentration of 1%. Tripolyphosphate cross-linked chitosan composites were developed by freezing and lyophilisation. The Young's modulus of the scaffolds was increased from 4kPa to 17kPa and the porosity of composites dropped from 85 to 68% by increasing the HA/β-TCP ratio. After 28days in physiological solution, bone-like composite scaffolds with a higher ratio of HA/β-TCP (e.g. 40/30/30) showed about 2% lower biodegradation in comparison to scaffolds with a lower ratio of HA/β-TCP (i.e. 20/10/70). The obtained data suggest that the chitosan based bone-like composites could be potential candidates for biomedical applications.
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239
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Ji J, Tong X, Huang X, Wang T, Lin Z, Cao Y, Zhang J, Dong L, Qin H, Hu Q. Sphere-shaped nano-hydroxyapatite/chitosan/gelatin 3D porous scaffolds increase proliferation and osteogenic differentiation of human induced pluripotent stem cells from gingival fibroblasts. ACTA ACUST UNITED AC 2015; 10:045005. [PMID: 26154827 DOI: 10.1088/1748-6041/10/4/045005] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Hydroxyapatite (HA) is an important component of human bone and bone tissue engineering scaffolds. A plethora of bone tissue engineering scaffolds have been synthesized so far, including nano-HA/chitosan/gelatin (nHA/CG) scaffolds; and for seeding cells, stem cells, especially induced pluripotent stem cells (iPSCs), have been a promising cell source for bone tissue engineering recently. However, the influence of different HA nano-particle morphologies on the osteogenic differentiation of human iPSCs (hiPSCs) from human gingival fibroblasts (hGFs) is unknown. The purpose of this study was to investigate the osteogenic differentiation of hiPSCs from hGFs seeded on nHA/CG scaffolds with 2 shapes (rod and sphere) of nHA particles. Firstly, hGFs isolated from discarded normal gingival tissues were reprogrammed into hiPSCs. Secondly, hiPSCs were seeded on rod-like nHA/CG (rod-nHA/CG) and sphere-shaped nHA/CG (sphere-nHA/CG) scaffolds respectively and then cell/scaffold complexes were cultured in vitro. Scanning electron microscope, hematoxyline and eosin (HE) staining, Masson's staining, and quantitative real-time polymerase chain reaction techniques were used to examine hiPSC morphology, proliferation, and differentiation on rod-nHA/CG and sphere-nHA/CG scaffolds. Finally, hiPSCs composited with 2 kinds of nHA/CG were transplanted in vivo in a subcutaneous implantation model for 12 weeks; pure scaffolds were also transplanted as a blank control. HE, Masson's, and immunohistochemistry staining were applied to detect new bone regeneration ability. The results showed that sphere-nHA/CG significantly increased hiPSCs from hGF proliferation and osteogenic differentiation in vitro. hiPSCs and sphere-nHA/CG composities generated large bone, whereas hiPSCs and rod-nHA/CG composities produced tiny bone in vivo. Moreover, pure scaffolds without cells almost produced no bone. In conclusion, our work provided a potential innovative bone tissue engineering approach using clinically discarded gingival tissues and sphere-nHA/CG scaffolds.
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Affiliation(s)
- Jun Ji
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China. Nanjing Key Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China
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Rogina A, Rico P, Gallego Ferrer G, Ivanković M, Ivanković H. Effect of in situ formed hydroxyapatite on microstructure of freeze-gelled chitosan-based biocomposite scaffolds. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.05.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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241
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242
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Lai WF, Shum HC. Hypromellose-graft-chitosan and Its Polyelectrolyte Complex as Novel Systems for Sustained Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2015; 7:10501-10510. [PMID: 25946653 DOI: 10.1021/acsami.5b01984] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Polyelectrolyte complexes formed between chitosan (CS) and anionic polymers have attracted increasing interest in drug delivery. In this study, CS is copolymerized with hypromellose via a coupling reagent-mediated approach to form a water-soluble, nontoxic CS derivative, namely hypromellose-graft-CS (HC), which is subsequently complexed with carboxymethylcellulose (CMC) to generate a polyampholytic hydrogel. When compared with conventional CS, HC is highly water-soluble across a wide pH range, and has a substantially higher pH buffering capacity to provide a pH-stable environment for delivery of drugs. In addition, the polyelectrolyte complex of HC exhibits a drug encapsulation efficiency of over 90% in all drugs tested, which is 1-2 fold higher than the efficiency attainable by the polyelectrolyte complex of conventional CS, with a 2-3 fold longer duration of sustained drug release. Our results indicate that as a novel polymer, HC has excellent promise for future pharmaceutical applications.
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Affiliation(s)
- Wing-Fu Lai
- †Department of Mechanical Engineering, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Ho Cheung Shum
- †Department of Mechanical Engineering, The University of Hong Kong, Hong Kong Special Administrative Region, China
- ‡HKU-Shenzhen Institute of Research and Innovation, Shenzhen, Guangdong 518000, China
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243
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Koç A, Elçin AE, Elçin YM. Ectopic osteogenic tissue formation by MC3T3-E1 cell-laden chitosan/hydroxyapatite composite scaffold. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1440-7. [DOI: 10.3109/21691401.2015.1036998] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Aysel Koç
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
| | - Ayşe Eser Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
| | - Yaşar Murat Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
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244
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Siddiqui N, Pramanik K, Jabbari E. Osteogenic differentiation of human mesenchymal stem cells in freeze-gelled chitosan/nano β-tricalcium phosphate porous scaffolds crosslinked with genipin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 54:76-83. [PMID: 26046270 DOI: 10.1016/j.msec.2015.05.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 02/28/2015] [Accepted: 05/02/2015] [Indexed: 11/16/2022]
Abstract
The objective of this work was to investigate material properties and osteogenic differentiation of human mesenchymal stem cells (hMSCs) in genipin (GN) crosslinked chitosan/nano β-tricalcium phosphate (CS/nano β-TCP) scaffolds, and compare the results with tripolyphosphate (TPP) crosslinked scaffolds. Porous crosslinked CS/nano β-TCP scaffolds were produced by freeze-gelation using GN (CBG scaffold) and TPP (CBT scaffold) as crosslinkers. The prepared CBT and CBG scaffolds were characterized with respect to porosity, pore size, water content, wettability, compressive strength, mass loss, and osteogenic differentiation of hMSCs. All scaffolds displayed interconnected honeycomb-like microstructures. There was a significant difference between the average pore size, porosity, contact angle, and percent swelling of CBT and CBG scaffolds. The average pore size of CBG scaffolds was higher than CBT, the porosity of CBG was lower than CBT, the water contact angle of CBG was higher than CBT, and the percent swelling of CBG was lower than CBT. At a given crosslinker concentration, there was not a significant difference in compressive modulus and mass loss of CBG and CBT scaffolds. Metabolic activity of hMSCs seeded in CBG scaffolds was slightly higher than CBT. Furthermore, CBG scaffolds displayed slightly higher extent of mineralization after 21 days of incubation in osteogenic medium compared to CBT.
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Affiliation(s)
- Nadeem Siddiqui
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, India
| | - Krishna Pramanik
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, India
| | - Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC, USA.
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245
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Amin A, Kandil H, Awad HM, Ismail MN. Preparation and characterization of chitosan–hydroxyapatite–glycopolymer/Cloisite 30 B nanocomposite for biomedical applications. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1351-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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246
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Kucharska M, Walenko K, Lewandowska-Szumieł M, Brynk T, Jaroszewicz J, Ciach T. Chitosan and composite microsphere-based scaffold for bone tissue engineering: evaluation of tricalcium phosphate content influence on physical and biological properties. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:143. [PMID: 25737128 DOI: 10.1007/s10856-015-5464-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 01/09/2015] [Indexed: 06/04/2023]
Abstract
In the hereby presented work the authors describe a technique of high-compression-resistant biodegradable bone scaffold preparation. The methodology is based on the agglomeration of chitosan (CH) and chitosan/β-tricalcium phosphate (CH/TCP) microspheres and represents a novel approach to 3D matrices design for bone tissue engineering application. The materials were prepared from high deacetylation degree chitosan. The authors describe the method for scaffold fabrication, essential properties of the materials manufactured and the influence of various TCP concentrations on material morphology, mechanical properties (for dry and hydrated materials) and preliminary study on the interaction between CH or CH/TCP scaffolds and within cultured MG-63 osteoblast-like cells. The properties of the obtained materials were significantly affected by the calcium phosphate content, which had a particular influence on the granule microstructure, size distribution and inner biomaterial pore size. The water uptake ability was found to be lower for the materials enriched with the inorganic phase and tended to decrease with the increasing calcium phosphate concentration. The evaluation of mechanical properties has revealed that scaffolds produced with the usage of granule-based technology display a potential to be used as a load-bearing material since the Young's modulus values were limited to the range of 200-500 MPa for dry materials and 15-20 MPa for the hydrated state of the scaffolds. The cell number, identified in three time points (48 h, 7 and 14 days) by Pico Green assay, was lower for the materials enriched with inorganic phase (75 % of control), however cell distribution, when compared to CH only biomaterial, was acknowledged as steadier on the surface of the material containing the highest calcium phosphate concentration.
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Affiliation(s)
- Martyna Kucharska
- Biomedical Engineering Laboratory, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645, Warsaw, Poland,
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Munro NH, McGrath KM. Advances in techniques and technologies for bone implants. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2015. [DOI: 10.1680/bbn.14.00015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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248
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Lewandowska-Łańcucka J, Fiejdasz S, Rodzik Ł, Kozieł M, Nowakowska M. Bioactive hydrogel-nanosilica hybrid materials: a potential injectable scaffold for bone tissue engineering. ACTA ACUST UNITED AC 2015; 10:015020. [PMID: 25668107 DOI: 10.1088/1748-6041/10/1/015020] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Novel bioactive organic-inorganic hybrid materials that can serve as injectable hydrogel systems for bone tissue regeneration were obtained. The silica nanoparticles (SiNP) prepared in situ by the Stöber method were dispersed in collagen, collagen-chitosan or chitosan sols, which were then subsequently crosslinked. Laser scanning confocal microscopy studies, in which fluorescent SiNP were applied, and SEM images indicated that the nanosilica particles were distributed in the whole volume of the hydrogel matrix. In vitro studies on fibroblast cell viability indicated that the hybrid materials are biocompatible. The silica nanoparticles dispersed in the biopolymer matrix had a positive effect on cell viability. Studies on the mineralization process under simulated body fluid (SBF) conditions confirmed the bioactivity of prepared materials. SEM images revealed mineral phase formation in the majority of the hybrid materials developed. EDS analysis indicated that these mineral phases are mainly composed of calcium and phosphorus. The XRD studies confirmed that mineral phases formed during SBF incubation of hybrid materials based on collagen are bone-like apatite minerals. The silica nanoparticles added to the hydrogel at the stage of synthesis induced the occurrence of mineralization. This process occurs not only at the surface of the material but in its entire volume, which is important for the preparation of scaffolds for bone tissue engineering. The ability of these materials to undergo in situ gelation under physiological temperature and their bioactivity as well as biocompatibility make them interesting candidates for bioactive injectable systems.
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249
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Chitosan–nanohydroxyapatite composites: Mechanical, thermal and bio-compatibility studies. Int J Biol Macromol 2015; 73:170-81. [DOI: 10.1016/j.ijbiomac.2014.11.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 11/04/2014] [Accepted: 11/05/2014] [Indexed: 11/20/2022]
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250
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Liu M, Dai L, Shi H, Xiong S, Zhou C. In vitro evaluation of alginate/halloysite nanotube composite scaffolds for tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:700-712. [PMID: 25686999 DOI: 10.1016/j.msec.2015.01.037] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 12/21/2014] [Accepted: 01/07/2015] [Indexed: 10/24/2022]
Abstract
In this study, a series of alginate/halloysite nanotube (HNTs) composite scaffolds were prepared by solution-mixing and freeze-drying method. HNTs are incorporated into alginate to improve both the mechanical and cell-attachment properties of the scaffolds. The interfacial interactions between alginate and HNTs were confirmed by the atomic force microscope (AFM), transmission electron microscope (TEM) and FTIR spectroscopy. The mechanical, morphological, and physico-chemical properties of the composite scaffolds were investigated. The composite scaffolds exhibit significant enhancement in compressive strength and compressive modulus compared with pure alginate scaffold both in dry and wet states. A well-interconnected porous structure with size in the range of 100-200μm and over 96% porosity is found in the composite scaffolds. X-ray diffraction (XRD) result shows that HNTs are uniformly dispersed and partly oriented in the composite scaffolds. The incorporation of HNTs leads to increase in the scaffold density and decrease in the water swelling ratio of alginate. HNTs improve the stability of alginate scaffolds against enzymatic degradation in PBS solution. Thermogravimetrica analysis (TGA) shows that HNTs can improve the thermal stability of the alginate. The mouse fibroblast cells display better attachment to the alginate/HNT composite than those to the pure alginate, suggesting the good cytocompatibility of the composite scaffolds. Alginate/HNT composite scaffolds exhibit great potential for applications in tissue engineering.
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Affiliation(s)
- Mingxian Liu
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China
| | - Libing Dai
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital Medical College, Jinan University, Guangzhou 510220, China
| | - Huizhe Shi
- Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou 510632, China
| | - Sheng Xiong
- Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou 510632, China
| | - Changren Zhou
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
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